diff --git a/tests/phpunit/tests/pluggable/signatures.php b/tests/phpunit/tests/pluggable/signatures.php
index 81fd079621916..649e69186cc34 100644
--- a/tests/phpunit/tests/pluggable/signatures.php
+++ b/tests/phpunit/tests/pluggable/signatures.php
@@ -14,6 +14,8 @@ class Tests_Pluggable_Signatures extends WP_UnitTestCase {
 	 * @ticket 33867
 	 *
 	 * @dataProvider get_defined_pluggable_functions
+	 *
+	 * @coversNothing
 	 */
 	public function test_pluggable_function_signatures_match( $function_name ) {
 
@@ -54,6 +56,8 @@ public function test_pluggable_function_signatures_match( $function_name ) {
 	 *
 	 * @ticket 33654
 	 * @ticket 33867
+	 *
+	 * @coversNothing
 	 */
 	public function test_all_pluggable_functions_exist() {
 
diff --git a/tests/phpunit/tests/pluggable/wpMail.php b/tests/phpunit/tests/pluggable/wpMail.php
index f7af48bc067e8..9d547bc5fa959 100644
--- a/tests/phpunit/tests/pluggable/wpMail.php
+++ b/tests/phpunit/tests/pluggable/wpMail.php
@@ -23,12 +23,17 @@ public function tear_down() {
 	 * when it encounters a line longer than 999 characters. But PHPMailer doesn't clean up after itself / presets
 	 * all variables, which means that following tests would fail. To solve this issue we set `$this->Encoding`
 	 * back to 8bit in `MockPHPMailer::preSend`.
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_break_it() {
 		$content = str_repeat( 'A', 1000 );
 		$this->assertTrue( wp_mail( WP_TESTS_EMAIL, 'Looong line testing', $content ) );
 	}
 
+	/**
+	 * @covers ::wp_mail
+	 */
 	public function test_wp_mail_custom_boundaries() {
 		$to       = 'user@example.com';
 		$subject  = 'Test email with custom boundaries';
@@ -89,6 +94,8 @@ public function test_wp_mail_custom_boundaries() {
 
 	/**
 	 * @ticket 17305
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_rfc2822_addresses() {
 		$to        = 'Name <address@tld.com>';
@@ -119,6 +126,8 @@ public function test_wp_mail_rfc2822_addresses() {
 
 	/**
 	 * @ticket 17305
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_multiple_rfc2822_to_addresses() {
 		$to      = 'Name <address@tld.com>, Another Name <another_address@different-tld.com>';
@@ -137,6 +146,9 @@ public function test_wp_mail_multiple_rfc2822_to_addresses() {
 		$this->assertSameIgnoreEOL( $message . "\n", $mailer->get_sent()->body );
 	}
 
+	/**
+	 * @covers ::wp_mail
+	 */
 	public function test_wp_mail_multiple_to_addresses() {
 		$to      = 'address@tld.com, another_address@different-tld.com';
 		$subject = 'RFC2822 Testing';
@@ -152,6 +164,8 @@ public function test_wp_mail_multiple_to_addresses() {
 
 	/**
 	 * @ticket 18463
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_to_address_no_name() {
 		$to      = '<address@tld.com>';
@@ -167,6 +181,8 @@ public function test_wp_mail_to_address_no_name() {
 
 	/**
 	 * @ticket 23642
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_return_value() {
 		// No errors.
@@ -181,6 +197,8 @@ public function test_wp_mail_return_value() {
 
 	/**
 	 * @ticket 30266
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_with_valid_from_header() {
 		$to       = 'address@tld.com';
@@ -219,6 +237,8 @@ public function test_wp_mail_with_from_header_missing_space() {
 
 	/**
 	 * @ticket 30266
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_with_empty_from_header() {
 		$to       = 'address@tld.com';
@@ -235,6 +255,8 @@ public function test_wp_mail_with_empty_from_header() {
 
 	/**
 	 * @ticket 30266
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_with_empty_from_name_for_the_from_header() {
 		$to       = 'address@tld.com';
@@ -273,6 +295,8 @@ public function test_wp_mail_with_empty_home_url() {
 
 	/**
 	 * @ticket 30266
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_with_valid_content_type_header() {
 		$to       = 'address@tld.com';
@@ -289,6 +313,8 @@ public function test_wp_mail_with_valid_content_type_header() {
 
 	/**
 	 * @ticket 30266
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_with_empty_content_type_header() {
 		$to       = 'address@tld.com';
@@ -305,6 +331,8 @@ public function test_wp_mail_with_empty_content_type_header() {
 
 	/**
 	 * @ticket 30266
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_with_empty_charset_for_the_content_type_header() {
 		$to       = 'address@tld.com';
@@ -321,6 +349,8 @@ public function test_wp_mail_with_empty_charset_for_the_content_type_header() {
 
 	/**
 	 * @ticket 43542
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_does_not_duplicate_mime_version_header() {
 		$to       = 'user@example.com';
@@ -354,6 +384,8 @@ public function wp_mail_set_text_message( $mailer ) {
 	 * https://tools.ietf.org/html/rfc2045#section-6.1
 	 *
 	 * @ticket 28039
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_content_transfer_encoding_in_quoted_printable_multipart() {
 		add_action( 'phpmailer_init', array( $this, 'wp_mail_quoted_printable' ) );
@@ -371,6 +403,8 @@ public function test_wp_mail_content_transfer_encoding_in_quoted_printable_multi
 
 	/**
 	 * @ticket 21659
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_addresses_arent_encoded() {
 		$to      = 'Lukáš To <to@example.org>';
@@ -413,6 +447,8 @@ public function test_wp_mail_addresses_arent_encoded() {
 	 * set it correctly.
 	 *
 	 * @ticket 37736
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_sender_not_set() {
 		wp_mail( 'user@example.org', 'Testing the Sender field', 'The Sender field should not have been set.' );
@@ -424,6 +460,8 @@ public function test_wp_mail_sender_not_set() {
 
 	/**
 	 * @ticket 35598
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_phpmailer_exception_thrown() {
 		$to      = 'an_invalid_address';
@@ -512,6 +550,8 @@ public function test_wp_mail_sends_attachments_with_custom_name() {
 
 	/**
 	 * @ticket 50720
+	 *
+	 * @coversNothing
 	 */
 	public function test_phpmailer_validator() {
 		$phpmailer = $GLOBALS['phpmailer'];
@@ -522,6 +562,8 @@ public function test_phpmailer_validator() {
 	 * Test for short-circuiting wp_mail().
 	 *
 	 * @ticket 35069
+	 *
+	 * @covers ::wp_mail
 	 */
 	public function test_wp_mail_can_be_shortcircuited() {
 		$result1 = wp_mail( WP_TESTS_EMAIL, 'Foo', 'Bar' );
diff --git a/tests/phpunit/tests/pomo/mo.php b/tests/phpunit/tests/pomo/mo.php
index 7ae73abf6c7ec..d68e205424295 100644
--- a/tests/phpunit/tests/pomo/mo.php
+++ b/tests/phpunit/tests/pomo/mo.php
@@ -5,6 +5,9 @@
  */
 class Tests_POMO_MO extends WP_UnitTestCase {
 
+	/**
+	 * @covers MO::import_from_file
+	 */
 	public function test_mo_simple() {
 		$mo = new MO();
 		$mo->import_from_file( DIR_TESTDATA . '/pomo/simple.mo' );
@@ -20,6 +23,9 @@ public function test_mo_simple() {
 		$this->assertSame( array( 'yes' ), $mo->entries["kuku\nruku"]->translations );
 	}
 
+	/**
+	 * @covers MO::translate_plural
+	 */
 	public function test_mo_plural() {
 		$mo = new MO();
 		$mo->import_from_file( DIR_TESTDATA . '/pomo/plural.mo' );
@@ -46,6 +52,9 @@ public function test_mo_plural() {
 		$this->assertSame( 'twoey dragoney', $mo->translate_plural( 'one dragon', '%d dragons', -8 ) );
 	}
 
+	/**
+	 * @covers Translation_Entry::__construct
+	 */
 	public function test_mo_context() {
 		$mo = new MO();
 		$mo->import_from_file( DIR_TESTDATA . '/pomo/context.mo' );
@@ -72,6 +81,9 @@ public function test_mo_context() {
 		$this->assertSame( 'not so dragon', $mo->entries[ $single_entry->key() ]->context );
 	}
 
+	/**
+	 * @covers Translation_Entry::merge_with
+	 */
 	public function test_translations_merge() {
 		$host = new Translations();
 		$host->add_entry( new Translation_Entry( array( 'singular' => 'pink' ) ) );
@@ -84,6 +96,9 @@ public function test_translations_merge() {
 		$this->assertSame( array(), array_diff( array( 'pink', 'green', 'red' ), array_keys( $host->entries ) ) );
 	}
 
+	/**
+	 * @covers MO::export_to_file
+	 */
 	public function test_export_mo_file() {
 		$entries              = array();
 		$entries[]            = new Translation_Entry(
@@ -142,6 +157,9 @@ public function test_export_mo_file() {
 		}
 	}
 
+	/**
+	 * @covers MO::export_to_file
+	 */
 	public function test_export_should_not_include_empty_translations() {
 		$entries = array();
 		$mo      = new MO();
@@ -161,6 +179,9 @@ public function test_export_should_not_include_empty_translations() {
 		$this->assertCount( 0, $again->entries );
 	}
 
+	/**
+	 * @covers MO::translate_plural
+	 */
 	public function test_nplurals_with_backslashn() {
 		$mo = new MO();
 		$mo->import_from_file( DIR_TESTDATA . '/pomo/bad_nplurals.mo' );
@@ -169,6 +190,9 @@ public function test_nplurals_with_backslashn() {
 		$this->assertSame( '%d foros', $mo->translate_plural( '%d forum', '%d forums', -1 ) );
 	}
 
+	/**
+	 * @covers MO::import_from_file
+	 */
 	public function disabled_test_performance() {
 		$start = microtime( true );
 		$mo    = new MO();
@@ -176,6 +200,9 @@ public function disabled_test_performance() {
 		// echo "\nPerformance: ".(microtime(true) - $start)."\n";
 	}
 
+	/**
+	 * @covers Translation_Entry::translations
+	 */
 	public function test_overloaded_mb_functions() {
 		if ( ( ini_get( 'mbstring.func_overload' ) & 2 ) === 0 ) {
 			$this->markTestSkipped( 'This test requires mbstring.func_overload to be enabled.' );
@@ -186,6 +213,9 @@ public function test_overloaded_mb_functions() {
 		$this->assertSame( array( 'Табло' ), $mo->entries['Dashboard']->translations );
 	}
 
+	/**
+	 * @covers MO::import_from_file
+	 */
 	public function test_load_pot_file() {
 		$mo = new MO();
 		$this->assertFalse( $mo->import_from_file( DIR_TESTDATA . '/pomo/mo.pot' ) );
diff --git a/tests/phpunit/tests/pomo/noopTranslations.php b/tests/phpunit/tests/pomo/noopTranslations.php
index 44f46c1880f43..593936e99077d 100644
--- a/tests/phpunit/tests/pomo/noopTranslations.php
+++ b/tests/phpunit/tests/pomo/noopTranslations.php
@@ -39,30 +39,48 @@ public function set_up() {
 		);
 	}
 
+	/**
+	 * @covers NOOP_Translations::get_header
+	 */
 	public function test_get_header() {
 		$this->assertFalse( $this->noop->get_header( 'Content-Type' ) );
 	}
 
+	/**
+	 * @covers NOOP_Translations::add_entry
+	 */
 	public function test_add_entry() {
 		$this->noop->add_entry( $this->entry );
 		$this->assertSame( array(), $this->noop->entries );
 	}
 
+	/**
+	 * @covers NOOP_Translations::set_header
+	 */
 	public function test_set_header() {
 		$this->noop->set_header( 'header', 'value' );
 		$this->assertSame( array(), $this->noop->headers );
 	}
 
+	/**
+	 * @covers NOOP_Translations::translate_entry
+	 */
 	public function test_translate_entry() {
 		$this->noop->add_entry( $this->entry );
 		$this->assertFalse( $this->noop->translate_entry( $this->entry ) );
 	}
 
+	/**
+	 * @covers NOOP_Translations::translate
+	 */
 	public function test_translate() {
 		$this->noop->add_entry( $this->entry );
 		$this->assertSame( 'baba', $this->noop->translate( 'baba' ) );
 	}
 
+	/**
+	 * @covers NOOP_Translations::translate_plural
+	 */
 	public function test_plural() {
 		$this->noop->add_entry( $this->plural_entry );
 		$this->assertSame( 'dyado', $this->noop->translate_plural( 'dyado', 'dyados', 1 ) );
diff --git a/tests/phpunit/tests/pomo/pluralForms.php b/tests/phpunit/tests/pomo/pluralForms.php
index b676735c59bac..fedf199233f22 100644
--- a/tests/phpunit/tests/pomo/pluralForms.php
+++ b/tests/phpunit/tests/pomo/pluralForms.php
@@ -41,6 +41,8 @@ protected static function parenthesize_plural_expression( $expression ) {
 	 * @ticket 41562
 	 * @dataProvider data_locales
 	 * @group external-http
+	 *
+	 * @covers GP_Locales::locales
 	 */
 	public function test_regression( $lang, $nplurals, $expression ) {
 		require_once dirname( __DIR__, 2 ) . '/includes/plural-form-function.php';
@@ -94,6 +96,8 @@ public static function data_locales() {
 	/**
 	 * @ticket 41562
 	 * @dataProvider data_simple
+	 *
+	 * @covers Plural_Forms::__construct
 	 */
 	public function test_simple( $expression, $expected ) {
 		$plural_forms = new Plural_Forms( $expression );
@@ -161,6 +165,8 @@ public static function data_simple() {
 	 *
 	 * @ticket 41562
 	 * @dataProvider data_exceptions
+	 *
+	 * @covers Plural_Forms::__construct
 	 */
 	public function test_exceptions( $expression, $expected_message, $call_get ) {
 		$this->expectException( 'Exception' );
@@ -214,6 +220,8 @@ public function data_exceptions() {
 
 	/**
 	 * @ticket 41562
+	 *
+	 * @covers Plural_Forms::__construct
 	 */
 	public function test_cache() {
 		$mock = $this->getMockBuilder( 'Plural_Forms' )
diff --git a/tests/phpunit/tests/pomo/po.php b/tests/phpunit/tests/pomo/po.php
index eeaf0aad14fea..280e498124bed 100644
--- a/tests/phpunit/tests/pomo/po.php
+++ b/tests/phpunit/tests/pomo/po.php
@@ -51,6 +51,9 @@ public static function set_up_before_class() {
 		require_once ABSPATH . 'wp-includes/pomo/po.php';
 	}
 
+	/**
+	 * @covers PO::prepend_each_line
+	 */
 	public function test_prepend_each_line() {
 		$po = new PO();
 		$this->assertSame( 'baba_', $po->prepend_each_line( '', 'baba_' ) );
@@ -58,6 +61,9 @@ public function test_prepend_each_line() {
 		$this->assertSame( "# baba\n# dyado\n# \n", $po->prepend_each_line( "baba\ndyado\n\n", '# ' ) );
 	}
 
+	/**
+	 * @covers PO::poify
+	 */
 	public function test_poify() {
 		$po = new PO();
 		// Simple.
@@ -80,6 +86,9 @@ public function test_poify() {
 		$this->assertSameIgnoreEOL( self::PO_MAIL, $po->poify( $mail ) );
 	}
 
+	/**
+	 * @covers PO::unpoify
+	 */
 	public function test_unpoify() {
 		$po = new PO();
 		$this->assertSame( 'baba', $po->unpoify( '"baba"' ) );
@@ -96,6 +105,9 @@ public function test_unpoify() {
 		$this->assertSameIgnoreEOL( $mail, $po->unpoify( self::PO_MAIL ) );
 	}
 
+	/**
+	 * @covers PO::export_entry
+	 */
 	public function test_export_entry() {
 		$po    = new PO();
 		$entry = new Translation_Entry( array( 'singular' => 'baba' ) );
@@ -221,6 +233,9 @@ public function test_export_entry() {
 		);
 	}
 
+	/**
+	 * @covers PO::export_entries
+	 */
 	public function test_export_entries() {
 		$entry  = new Translation_Entry( array( 'singular' => 'baba' ) );
 		$entry2 = new Translation_Entry( array( 'singular' => 'dyado' ) );
@@ -230,6 +245,9 @@ public function test_export_entries() {
 		$this->assertSame( "msgid \"baba\"\nmsgstr \"\"\n\nmsgid \"dyado\"\nmsgstr \"\"", $po->export_entries() );
 	}
 
+	/**
+	 * @covers PO::export_headers
+	 */
 	public function test_export_headers() {
 		$po = new PO();
 		$po->set_header( 'Project-Id-Version', 'WordPress 2.6-bleeding' );
@@ -237,6 +255,9 @@ public function test_export_headers() {
 		$this->assertSame( "msgid \"\"\nmsgstr \"\"\n\"Project-Id-Version: WordPress 2.6-bleeding\\n\"\n\"POT-Creation-Date: 2008-04-08 18:00+0000\\n\"", $po->export_headers() );
 	}
 
+	/**
+	 * @covers PO::export
+	 */
 	public function test_export() {
 		$po     = new PO();
 		$entry  = new Translation_Entry( array( 'singular' => 'baba' ) );
@@ -250,6 +271,9 @@ public function test_export() {
 	}
 
 
+	/**
+	 * @covers PO::export_to_file
+	 */
 	public function test_export_to_file() {
 		$po     = new PO();
 		$entry  = new Translation_Entry( array( 'singular' => 'baba' ) );
@@ -268,6 +292,9 @@ public function test_export_to_file() {
 		$this->assertSame( $po->export(), file_get_contents( $temp_fn2 ) );
 	}
 
+	/**
+	 * @covers PO::import_from_file
+	 */
 	public function test_import_from_file() {
 		$po  = new PO();
 		$res = $po->import_from_file( DIR_TESTDATA . '/pomo/simple.po' );
@@ -327,11 +354,17 @@ public function test_import_from_file() {
 		$this->assertEquals( $end_quote_entry, $po->entries[ $end_quote_entry->key() ] );
 	}
 
+	/**
+	 * @covers PO::import_from_file
+	 */
 	public function test_import_from_entry_file_should_give_false() {
 		$po = new PO();
 		$this->assertFalse( $po->import_from_file( DIR_TESTDATA . '/pomo/empty.po' ) );
 	}
 
+	/**
+	 * @covers PO::import_from_file
+	 */
 	public function test_import_from_file_with_windows_line_endings_should_work_as_with_unix_line_endings() {
 		$po = new PO();
 		$this->assertTrue( $po->import_from_file( DIR_TESTDATA . '/pomo/windows-line-endings.po' ) );
diff --git a/tests/phpunit/tests/pomo/translationEntry.php b/tests/phpunit/tests/pomo/translationEntry.php
index 24d7d093d9f55..ce81fe8d348e7 100644
--- a/tests/phpunit/tests/pomo/translationEntry.php
+++ b/tests/phpunit/tests/pomo/translationEntry.php
@@ -5,6 +5,9 @@
  */
 class Tests_POMO_TranslationEntry extends WP_UnitTestCase {
 
+	/**
+	 * @covers Translation_Entry::__construct
+	 */
 	public function test_create_entry() {
 		// No singular => empty object.
 		$entry = new Translation_Entry();
@@ -29,6 +32,9 @@ public function test_create_entry() {
 		$this->assertSame( array(), $entry->flags );
 	}
 
+	/**
+	 * @covers Translation_Entry::key
+	 */
 	public function test_key() {
 		$entry_baba        = new Translation_Entry( array( 'singular' => 'baba' ) );
 		$entry_dyado       = new Translation_Entry( array( 'singular' => 'dyado' ) );
diff --git a/tests/phpunit/tests/pomo/translations.php b/tests/phpunit/tests/pomo/translations.php
index 0d2a3383b0f77..09269e40e6aca 100644
--- a/tests/phpunit/tests/pomo/translations.php
+++ b/tests/phpunit/tests/pomo/translations.php
@@ -5,6 +5,9 @@
  */
 class Tests_POMO_Translations extends WP_UnitTestCase {
 
+	/**
+	 * @covers Translations::add_entry
+	 */
 	public function test_add_entry() {
 		$entry  = new Translation_Entry( array( 'singular' => 'baba' ) );
 		$entry2 = new Translation_Entry( array( 'singular' => 'dyado' ) );
@@ -42,6 +45,9 @@ public function test_add_entry() {
 		$this->assertSame( $entry->key(), $entries[0]->key() );
 	}
 
+	/**
+	 * @covers Translations::translate
+	 */
 	public function test_translate() {
 		$entry1 = new Translation_Entry(
 			array(
@@ -65,6 +71,9 @@ public function test_translate() {
 		$this->assertSame( 'babaz', $domain->translate( 'babaz' ) );
 	}
 
+	/**
+	 * @covers Translations::translate_plural
+	 */
 	public function test_translate_plural() {
 		$entry_incomplete = new Translation_Entry(
 			array(
@@ -105,6 +114,10 @@ public function test_translate_plural() {
 		$this->assertSame( 'dyadoy', $domain->translate_plural( 'dyado', 'dyados', -18881 ) );
 	}
 
+	/**
+	 * @covers Translations::translate
+	 * @covers Translation_Entry::merge_with
+	 */
 	public function test_digit_and_merge() {
 		$entry_digit_1 = new Translation_Entry(
 			array(
diff --git a/tests/phpunit/tests/post.php b/tests/phpunit/tests/post.php
index 548c5eb2cabf8..e690eb2dc1d20 100644
--- a/tests/phpunit/tests/post.php
+++ b/tests/phpunit/tests/post.php
@@ -49,6 +49,9 @@ public function test_parse_post_content_single_page() {
 		$this->assertSame( array( 'Page 0' ), $pages );
 	}
 
+	/**
+	 * @covers ::setup_postdata
+	 */
 	public function test_parse_post_content_multi_page() {
 		global $multipage, $pages, $numpages;
 
@@ -66,6 +69,9 @@ public function test_parse_post_content_multi_page() {
 		$this->assertSame( array( 'Page 0', 'Page 1', 'Page 2', 'Page 3' ), $pages );
 	}
 
+	/**
+	 * @covers ::setup_postdata
+	 */
 	public function test_parse_post_content_remaining_single_page() {
 		global $multipage, $pages, $numpages;
 
@@ -83,6 +89,9 @@ public function test_parse_post_content_remaining_single_page() {
 		$this->assertSame( array( 'Page 0' ), $pages );
 	}
 
+	/**
+	 * @covers ::setup_postdata
+	 */
 	public function test_parse_post_content_remaining_multi_page() {
 		global $multipage, $pages, $numpages;
 
@@ -102,6 +111,8 @@ public function test_parse_post_content_remaining_multi_page() {
 
 	/**
 	 * @ticket 16746
+	 *
+	 * @covers ::setup_postdata
 	 */
 	public function test_parse_post_content_starting_with_nextpage() {
 		global $multipage, $pages, $numpages;
@@ -122,6 +133,8 @@ public function test_parse_post_content_starting_with_nextpage() {
 
 	/**
 	 * @ticket 16746
+	 *
+	 * @covers ::setup_postdata
 	 */
 	public function test_parse_post_content_starting_with_nextpage_multi() {
 		global $multipage, $pages, $numpages;
@@ -142,6 +155,8 @@ public function test_parse_post_content_starting_with_nextpage_multi() {
 
 	/**
 	 * @ticket 24803
+	 *
+	 * @covers ::wp_count_posts
 	 */
 	public function test_wp_count_posts() {
 		$post_type = rand_str( 20 );
@@ -161,6 +176,9 @@ public function test_wp_count_posts() {
 		$this->assertEquals( new stdClass(), $count );
 	}
 
+	/**
+	 * @covers ::wp_count_posts
+	 */
 	public function test_wp_count_posts_filtered() {
 		$post_type = rand_str( 20 );
 		register_post_type( $post_type );
@@ -186,6 +204,9 @@ public function filter_wp_count_posts( $counts ) {
 		return $counts;
 	}
 
+	/**
+	 * @covers ::wp_count_posts
+	 */
 	public function test_wp_count_posts_insert_invalidation() {
 		$post_ids       = self::factory()->post->create_many( 3 );
 		$initial_counts = wp_count_posts();
@@ -206,6 +227,9 @@ public function test_wp_count_posts_insert_invalidation() {
 		$this->assertNotEquals( $initial_counts->publish, $after_draft_counts->publish );
 	}
 
+	/**
+	 * @covers ::wp_count_posts
+	 */
 	public function test_wp_count_posts_trash_invalidation() {
 		$post_ids       = self::factory()->post->create_many( 3 );
 		$initial_counts = wp_count_posts();
@@ -226,6 +250,8 @@ public function test_wp_count_posts_trash_invalidation() {
 
 	/**
 	 * @ticket 49685
+	 *
+	 * @covers ::wp_count_posts
 	 */
 	public function test_wp_count_posts_status_changes_visible() {
 		self::factory()->post->create_many( 3 );
@@ -242,6 +268,8 @@ public function test_wp_count_posts_status_changes_visible() {
 
 	/**
 	 * @ticket 25566
+	 *
+	 * @covers ::wp_tag_cloud
 	 */
 	public function test_wp_tag_cloud_link_with_post_type() {
 		$post_type = 'new_post_type';
@@ -277,6 +305,8 @@ public function test_wp_tag_cloud_link_with_post_type() {
 
 	/**
 	 * @ticket 21212
+	 *
+	 * @covers ::edit_post
 	 */
 	public function test_utf8mb3_post_saves_with_emoji() {
 		global $wpdb;
@@ -318,6 +348,8 @@ public function test_utf8mb3_post_saves_with_emoji() {
 	 * without the `publish_posts` capability, it should stay sticky.
 	 *
 	 * @ticket 24153
+	 *
+	 * @covers ::stick_post
 	 */
 	public function test_user_without_publish_posts_cannot_affect_sticky() {
 		// Create a sticky post.
@@ -356,6 +388,8 @@ public function test_user_without_publish_posts_cannot_affect_sticky() {
 	 * without the `publish_posts` capability, it should stay sticky.
 	 *
 	 * @ticket 24153
+	 *
+	 * @covers ::stick_post
 	 */
 	public function test_user_without_publish_posts_cannot_affect_sticky_with_edit_post() {
 		// Create a sticky post.
@@ -396,6 +430,8 @@ public function test_user_without_publish_posts_cannot_affect_sticky_with_edit_p
 	 * Test that hooks are fired when post gets stuck and unstuck.
 	 *
 	 * @ticket 35600
+	 *
+	 * @covers ::stick_post
 	 */
 	public function test_hooks_fire_when_post_gets_stuck_and_unstuck() {
 		$post_id = self::factory()->post->create();
@@ -450,6 +486,8 @@ public function test_wp_delete_post_reassign_hierarchical_post_type() {
 	 *
 	 * @see wp_unique_post_slug()
 	 * @ticket 21112
+	 *
+	 * @covers ::wp_insert_post
 	 */
 	public function test_pre_wp_unique_post_slug_filter() {
 		add_filter( 'pre_wp_unique_post_slug', array( $this, 'filter_pre_wp_unique_post_slug' ), 10, 6 );
diff --git a/tests/phpunit/tests/post/attachments.php b/tests/phpunit/tests/post/attachments.php
index 2922c185d28ee..2511713a8383b 100644
--- a/tests/phpunit/tests/post/attachments.php
+++ b/tests/phpunit/tests/post/attachments.php
@@ -13,6 +13,9 @@ public function tear_down() {
 		parent::tear_down();
 	}
 
+	/**
+	 * @covers ::wp_upload_bits
+	 */
 	public function test_insert_bogus_image() {
 		$filename = rand_str() . '.jpg';
 		$contents = rand_str();
@@ -21,6 +24,9 @@ public function test_insert_bogus_image() {
 		$this->assertEmpty( $upload['error'] );
 	}
 
+	/**
+	 * @covers ::wp_insert_attachment
+	 */
 	public function test_insert_image_no_thumb() {
 
 		// This image is smaller than the thumbnail size so it won't have one.
@@ -56,6 +62,8 @@ public function test_insert_image_no_thumb() {
 
 	/**
 	 * @requires function imagejpeg
+	 *
+	 * @covers ::wp_insert_attachment
 	 */
 	public function test_insert_image_thumb_only() {
 		update_option( 'medium_size_w', 0 );
@@ -107,6 +115,8 @@ public function test_insert_image_thumb_only() {
 
 	/**
 	 * @requires function imagejpeg
+	 *
+	 * @covers ::wp_insert_attachment
 	 */
 	public function test_insert_image_medium_sizes() {
 		update_option( 'medium_size_w', 400 );
@@ -164,6 +174,8 @@ public function test_insert_image_medium_sizes() {
 
 	/**
 	 * @requires function imagejpeg
+	 *
+	 * @covers ::wp_insert_attachment
 	 */
 	public function test_insert_image_delete() {
 		update_option( 'medium_size_w', 400 );
@@ -212,6 +224,8 @@ public function test_insert_image_delete() {
 	 *
 	 * @ticket 18310
 	 * @ticket 21963
+	 *
+	 * @covers ::wp_insert_attachment
 	 */
 	public function test_insert_image_without_guid() {
 		// This image is smaller than the thumbnail size so it won't have one.
@@ -230,6 +244,9 @@ public function test_insert_image_without_guid() {
 
 	/**
 	 * @ticket 21963
+	 *
+	 * @covers ::wp_insert_attachment
+	 * @covers ::wp_update_post
 	 */
 	public function test_update_attachment_fields() {
 		$filename = ( DIR_TESTDATA . '/images/test-image.jpg' );
@@ -256,6 +273,8 @@ public function test_update_attachment_fields() {
 
 	/**
 	 * @ticket 29646
+	 *
+	 * @covers ::wp_insert_attachment
 	 */
 	public function test_update_orphan_attachment_parent() {
 		$filename = ( DIR_TESTDATA . '/images/test-image.jpg' );
@@ -285,6 +304,8 @@ public function test_update_orphan_attachment_parent() {
 
 	/**
 	 * @ticket 15928
+	 *
+	 * @covers ::wp_get_attachment_url
 	 */
 	public function test_wp_get_attachment_url_should_not_force_https_when_current_page_is_non_ssl_and_siteurl_is_non_ssl() {
 		$siteurl = get_option( 'siteurl' );
@@ -310,6 +331,8 @@ public function test_wp_get_attachment_url_should_not_force_https_when_current_p
 	 * @ticket 15928
 	 *
 	 * This situation (current request is non-SSL but siteurl is https) should never arise.
+	 *
+	 * @covers ::wp_get_attachment_url
 	 */
 	public function test_wp_get_attachment_url_should_not_force_https_when_current_page_is_non_ssl_and_siteurl_is_ssl() {
 		$siteurl = get_option( 'siteurl' );
@@ -335,6 +358,8 @@ public function test_wp_get_attachment_url_should_not_force_https_when_current_p
 	 * @ticket 15928
 	 *
 	 * Canonical siteurl is non-SSL, but SSL support is available/optional.
+	 *
+	 * @covers ::wp_get_attachment_url
 	 */
 	public function test_wp_get_attachment_url_should_force_https_with_https_on_same_host_when_siteurl_is_non_ssl_but_ssl_is_available() {
 		$siteurl = get_option( 'siteurl' );
@@ -363,6 +388,8 @@ public function test_wp_get_attachment_url_should_force_https_with_https_on_same
 
 	/**
 	 * @ticket 15928
+	 *
+	 * @covers ::wp_get_attachment_url
 	 */
 	public function test_wp_get_attachment_url_with_https_on_same_host_when_siteurl_is_https() {
 		$siteurl = get_option( 'siteurl' );
@@ -391,6 +418,8 @@ public function test_wp_get_attachment_url_with_https_on_same_host_when_siteurl_
 
 	/**
 	 * @ticket 15928
+	 *
+	 * @covers ::wp_get_attachment_url
 	 */
 	public function test_wp_get_attachment_url_should_not_force_https_when_administering_over_https_but_siteurl_is_not_https() {
 		$siteurl = get_option( 'siteurl' );
@@ -415,6 +444,8 @@ public function test_wp_get_attachment_url_should_not_force_https_when_administe
 
 	/**
 	 * @ticket 15928
+	 *
+	 * @covers ::wp_get_attachment_url
 	 */
 	public function test_wp_get_attachment_url_should_force_https_when_administering_over_https_and_siteurl_is_https() {
 		// Set https upload URL.
@@ -440,6 +471,10 @@ public function test_wp_get_attachment_url_should_force_https_when_administering
 		$this->assertSame( 'https', parse_url( $url, PHP_URL_SCHEME ) );
 	}
 
+	/**
+	 * @covers ::wp_attachment_is_image
+	 * @covers ::wp_attachment_is
+	 */
 	public function test_wp_attachment_is() {
 		$filename = DIR_TESTDATA . '/images/test-image.jpg';
 		$contents = file_get_contents( $filename );
@@ -452,7 +487,10 @@ public function test_wp_attachment_is() {
 		$this->assertFalse( wp_attachment_is( 'audio', $attachment_id ) );
 		$this->assertFalse( wp_attachment_is( 'video', $attachment_id ) );
 	}
-
+	/**
+	 * @covers ::wp_attachment_is_image
+	 * @covers ::wp_attachment_is
+	 */
 	public function test_wp_attachment_is_default() {
 		// On Multisite, psd is not an allowed mime type by default.
 		if ( is_multisite() ) {
@@ -475,6 +513,9 @@ public function test_wp_attachment_is_default() {
 		}
 	}
 
+	/**
+	 * @covers ::wp_upload_bits
+	 */
 	public function test_upload_mimes_filter_is_applied() {
 		$filename = DIR_TESTDATA . '/images/test-image.jpg';
 		$contents = file_get_contents( $filename );
@@ -504,6 +545,8 @@ public function disallow_jpg_mime_type( $mimes ) {
 
 	/**
 	 * @ticket 33012
+	 *
+	 * @covers ::wp_mime_type_icon
 	 */
 	public function test_wp_mime_type_icon() {
 		$icon = wp_mime_type_icon();
@@ -513,6 +556,8 @@ public function test_wp_mime_type_icon() {
 
 	/**
 	 * @ticket 33012
+	 *
+	 * @covers ::wp_mime_type_icon
 	 */
 	public function test_wp_mime_type_icon_video() {
 		$icon = wp_mime_type_icon( 'video/mp4' );
diff --git a/tests/phpunit/tests/post/filtering.php b/tests/phpunit/tests/post/filtering.php
index 5947a29d43cfc..f692543c3c890 100644
--- a/tests/phpunit/tests/post/filtering.php
+++ b/tests/phpunit/tests/post/filtering.php
@@ -8,6 +8,8 @@
  *
  * @group post
  * @group formatting
+ *
+ * @covers ::wp_insert_post
  */
 class Tests_Post_Filtering extends WP_UnitTestCase {
 	public function set_up() {
@@ -21,7 +23,9 @@ public function tear_down() {
 		parent::tear_down();
 	}
 
-	// A simple test to make sure unclosed tags are fixed.
+	/**
+	 * A simple test to make sure unclosed tags are fixed.
+	 */
 	public function test_post_content_unknown_tag() {
 
 		$content = <<<EOF
@@ -38,7 +42,9 @@ public function test_post_content_unknown_tag() {
 		$this->assertSame( $expected, $post->post_content );
 	}
 
-	// A simple test to make sure unbalanced tags are fixed.
+	/**
+	 * A simple test to make sure unbalanced tags are fixed.
+	 */
 	public function test_post_content_unbalanced_tag() {
 
 		$content = <<<EOF
@@ -55,7 +61,10 @@ public function test_post_content_unbalanced_tag() {
 		$this->assertSame( $expected, $post->post_content );
 	}
 
-	// Test KSES filtering of disallowed attribute.
+	/**
+	 * Test KSES filtering of disallowed attribute.
+	 */
+
 	public function test_post_content_disallowed_attr() {
 
 		$content = <<<EOF
@@ -92,7 +101,11 @@ public function test_post_content_xhtml_empty_elem() {
 		$this->assertSame( $expected, $post->post_content );
 	}
 
-	// Make sure unbalanced tags are untouched when the balance option is off.
+	//
+
+	/**
+	 * Make sure unbalanced tags are untouched when the balance option is off.
+	 */
 	public function test_post_content_nobalance_nextpage_more() {
 
 		update_option( 'use_balanceTags', 0 );
diff --git a/tests/phpunit/tests/post/formats.php b/tests/phpunit/tests/post/formats.php
index 1cb96907082f5..f46133860ff56 100644
--- a/tests/phpunit/tests/post/formats.php
+++ b/tests/phpunit/tests/post/formats.php
@@ -4,6 +4,10 @@
  * @group post
  */
 class Tests_Post_Formats extends WP_UnitTestCase {
+
+	/**
+	* @covers ::get_post_format
+	*/
 	public function test_set_get_post_format_for_post() {
 		$post_id = self::factory()->post->create();
 
@@ -31,6 +35,8 @@ public function test_set_get_post_format_for_post() {
 
 	/**
 	 * @ticket 22473
+	 *
+	 * @covers ::get_post_format
 	 */
 	public function test_set_get_post_format_for_page() {
 		$post_id = self::factory()->post->create( array( 'post_type' => 'page' ) );
@@ -64,6 +70,9 @@ public function test_set_get_post_format_for_page() {
 		remove_post_type_support( 'page', 'post-formats' );
 	}
 
+	/**
+	 * @covers ::has_post_format
+	 */
 	public function test_has_format() {
 		$post_id = self::factory()->post->create();
 
@@ -92,6 +101,8 @@ public function test_has_format() {
 
 	/**
 	 * @ticket 23570
+	 *
+	 * @covers ::get_url_in_content
 	 */
 	public function test_get_url_in_content() {
 		$link                 = 'http://nytimes.com';
diff --git a/tests/phpunit/tests/post/getLastPostDate.php b/tests/phpunit/tests/post/getLastPostDate.php
index 8941c5282775c..be4014aac5037 100644
--- a/tests/phpunit/tests/post/getLastPostDate.php
+++ b/tests/phpunit/tests/post/getLastPostDate.php
@@ -2,6 +2,7 @@
 
 /**
  * @group post
+ * @covers ::get_lastpostdate
  */
 class Tests_Post_GetLastPostDate extends WP_UnitTestCase {
 
diff --git a/tests/phpunit/tests/post/getLastPostModified.php b/tests/phpunit/tests/post/getLastPostModified.php
index 45b2cb651dcfe..7eaa0b4683c43 100644
--- a/tests/phpunit/tests/post/getLastPostModified.php
+++ b/tests/phpunit/tests/post/getLastPostModified.php
@@ -2,6 +2,7 @@
 
 /**
  * @group post
+ * @covers ::get_lastpostmodified
  */
 class Tests_Post_GetLastPostModified extends WP_UnitTestCase {
 
diff --git a/tests/phpunit/tests/post/getPageByPath.php b/tests/phpunit/tests/post/getPageByPath.php
index 8db0274249bed..075453df9ff3d 100644
--- a/tests/phpunit/tests/post/getPageByPath.php
+++ b/tests/phpunit/tests/post/getPageByPath.php
@@ -2,6 +2,7 @@
 
 /**
  * @group post
+ * @covers ::get_page_by_path
  */
 class Tests_Post_GetPageByPath extends WP_UnitTestCase {
 	/**
diff --git a/tests/phpunit/tests/post/getPageChildren.php b/tests/phpunit/tests/post/getPageChildren.php
index 208fdf3b36686..a468b9c86b657 100644
--- a/tests/phpunit/tests/post/getPageChildren.php
+++ b/tests/phpunit/tests/post/getPageChildren.php
@@ -2,6 +2,7 @@
 
 /**
  * @group post
+ * @covers ::get_page_children
  */
 class Tests_Post_GetPageChildren extends WP_UnitTestCase {
 	protected $pages = array();
diff --git a/tests/phpunit/tests/post/getPageUri.php b/tests/phpunit/tests/post/getPageUri.php
index c6799902ce1ec..de96e3d6d5136 100644
--- a/tests/phpunit/tests/post/getPageUri.php
+++ b/tests/phpunit/tests/post/getPageUri.php
@@ -2,6 +2,7 @@
 
 /**
  * @group post
+ * @covers ::get_page_uri
  */
 class Tests_Post_GetPageUri extends WP_UnitTestCase {
 
diff --git a/tests/phpunit/tests/post/getPages.php b/tests/phpunit/tests/post/getPages.php
index 76735bae86296..4d297f7625dcc 100644
--- a/tests/phpunit/tests/post/getPages.php
+++ b/tests/phpunit/tests/post/getPages.php
@@ -8,6 +8,8 @@
 class Tests_Post_GetPages extends WP_UnitTestCase {
 	/**
 	 * @ticket 23167
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_cache() {
 		self::factory()->post->create_many( 3, array( 'post_type' => 'page' ) );
@@ -120,6 +122,8 @@ public function test_get_pages_cache_empty() {
 
 	/**
 	 * @ticket 40669
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_cache_should_be_invalidated_by_add_post_meta() {
 		$posts = self::factory()->post->create_many(
@@ -156,6 +160,8 @@ public function test_get_pages_cache_should_be_invalidated_by_add_post_meta() {
 
 	/**
 	 * @ticket 40669
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_cache_should_be_invalidated_by_update_post_meta() {
 		$posts = self::factory()->post->create_many(
@@ -193,6 +199,8 @@ public function test_get_pages_cache_should_be_invalidated_by_update_post_meta()
 
 	/**
 	 * @ticket 40669
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_cache_should_be_invalidated_by_delete_post_meta() {
 		$posts = self::factory()->post->create_many(
@@ -230,6 +238,8 @@ public function test_get_pages_cache_should_be_invalidated_by_delete_post_meta()
 
 	/**
 	 * @ticket 40669
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_cache_should_be_invalidated_by_delete_post_meta_by_key() {
 		$posts = self::factory()->post->create_many(
@@ -267,6 +277,8 @@ public function test_get_pages_cache_should_be_invalidated_by_delete_post_meta_b
 
 	/**
 	 * @ticket 20376
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_meta() {
 		$posts = self::factory()->post->create_many( 3, array( 'post_type' => 'page' ) );
@@ -297,6 +309,8 @@ public function test_get_pages_meta() {
 
 	/**
 	 * @ticket 22074
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_include_exclude() {
 		$page_ids = array();
@@ -605,6 +619,8 @@ public function test_get_pages_exclude_tree() {
 
 	/**
 	 * @ticket 9470
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_parent() {
 		$page_id1 = self::factory()->post->create( array( 'post_type' => 'page' ) );
@@ -663,6 +679,8 @@ public function test_get_pages_parent() {
 
 	/**
 	 * @ticket 22208
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_children_fields_ids() {
 		$post_id   = self::factory()->post->create();
@@ -679,6 +697,8 @@ public function test_get_children_fields_ids() {
 
 	/**
 	 * @ticket 25750
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_hierarchical_and_no_parent() {
 		global $wpdb;
@@ -729,6 +749,8 @@ public function test_get_pages_hierarchical_and_no_parent() {
 
 	/**
 	 * @ticket 18701
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_hierarchical_empty_child_of() {
 		$page_1 = self::factory()->post->create( array( 'post_type' => 'page' ) );
@@ -775,6 +797,8 @@ public function test_get_pages_hierarchical_empty_child_of() {
 
 	/**
 	 * @ticket 18701
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_non_hierarchical_empty_child_of() {
 		$page_1 = self::factory()->post->create( array( 'post_type' => 'page' ) );
@@ -811,6 +835,8 @@ public function test_get_pages_non_hierarchical_empty_child_of() {
 
 	/**
 	 * @ticket 18701
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_hierarchical_non_empty_child_of() {
 		$page_1 = self::factory()->post->create( array( 'post_type' => 'page' ) );
@@ -854,6 +880,8 @@ public function test_get_pages_hierarchical_non_empty_child_of() {
 
 	/**
 	 * @ticket 18701
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_non_hierarchical_non_empty_child_of() {
 		$page_1 = self::factory()->post->create( array( 'post_type' => 'page' ) );
@@ -919,6 +947,8 @@ public function test_get_pages_post_type() {
 
 	/**
 	 * @ticket 12821
+	 *
+	 * @covers ::wp_list_pages
 	 */
 	public function test_get_pages_post_status() {
 		register_post_status(
@@ -961,6 +991,8 @@ public function test_get_pages_offset() {
 
 	/**
 	 * @ticket 12821
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_author() {
 		$author_1 = self::factory()->user->create(
@@ -1071,6 +1103,8 @@ public function test_get_pages_multiple_authors_by_user_login() {
 
 	/**
 	 * @ticket 12821
+	 *
+	 * @covers ::get_pages
 	 */
 	public function test_get_pages_orderby() {
 		global $wpdb;
diff --git a/tests/phpunit/tests/post/getPostStatus.php b/tests/phpunit/tests/post/getPostStatus.php
index 6cce8251f5d7d..7d24a63751716 100644
--- a/tests/phpunit/tests/post/getPostStatus.php
+++ b/tests/phpunit/tests/post/getPostStatus.php
@@ -2,6 +2,7 @@
 
 /**
  * @group post
+ * @covers ::get_post_status
  */
 class Tests_Post_GetPostStatus extends WP_UnitTestCase {
 
diff --git a/tests/phpunit/tests/post/getPostTypeLabels.php b/tests/phpunit/tests/post/getPostTypeLabels.php
index 2a0e7f0d32ab1..4f14a4258ea93 100644
--- a/tests/phpunit/tests/post/getPostTypeLabels.php
+++ b/tests/phpunit/tests/post/getPostTypeLabels.php
@@ -2,8 +2,11 @@
 
 /**
  * @group post
+ *
+ * @covers ::get_post_type_labels
  */
 class Tests_Post_GetPostTypeLabels extends WP_UnitTestCase {
+
 	public function test_returns_an_object() {
 		$this->assertIsObject(
 			get_post_type_labels(
@@ -56,7 +59,6 @@ public function test_name_admin_bar_label_should_fall_back_to_singular_name() {
 		$this->assertSame( 'Foo', $labels->name_admin_bar );
 	}
 
-
 	public function test_name_admin_bar_label_should_fall_back_to_post_type_name() {
 		$labels = get_post_type_labels(
 			(object) array(
diff --git a/tests/phpunit/tests/post/getPosts.php b/tests/phpunit/tests/post/getPosts.php
index dac071f1aff49..4a9b0a7862c47 100644
--- a/tests/phpunit/tests/post/getPosts.php
+++ b/tests/phpunit/tests/post/getPosts.php
@@ -3,8 +3,11 @@
 /**
  * @group post
  * @group query
+ *
+ * @covers ::get_posts
  */
 class Tests_Post_GetPosts extends WP_UnitTestCase {
+
 	public function test_offset_should_be_null_by_default() {
 		$p1 = self::factory()->post->create(
 			array(
diff --git a/tests/phpunit/tests/post/getPostsByAuthorSql.php b/tests/phpunit/tests/post/getPostsByAuthorSql.php
index fc6f1e85267d9..5fdc045fd2dc7 100644
--- a/tests/phpunit/tests/post/getPostsByAuthorSql.php
+++ b/tests/phpunit/tests/post/getPostsByAuthorSql.php
@@ -5,21 +5,33 @@
  */
 class Tests_Post_GetPostsByAuthorSql extends WP_UnitTestCase {
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_post_type_post() {
 		$maybe_string = get_posts_by_author_sql( 'post' );
 		$this->assertStringContainsString( "post_type = 'post'", $maybe_string );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_post_type_page() {
 		$maybe_string = get_posts_by_author_sql( 'page' );
 		$this->assertStringContainsString( "post_type = 'page'", $maybe_string );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_non_existent_post_type() {
 		$maybe_string = get_posts_by_author_sql( 'non_existent_post_type' );
 		$this->assertStringContainsString( '1 = 0', $maybe_string );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_multiple_post_types() {
 		register_post_type( 'foo' );
 		register_post_type( 'bar' );
@@ -32,31 +44,49 @@ public function test_multiple_post_types() {
 		_unregister_post_type( 'bar' );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_full_true() {
 		$maybe_string = get_posts_by_author_sql( 'post', true );
 		$this->assertMatchesRegularExpression( '/^WHERE /', $maybe_string );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_full_false() {
 		$maybe_string = get_posts_by_author_sql( 'post', false );
 		$this->assertDoesNotMatchRegularExpression( '/^WHERE /', $maybe_string );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_post_type_clause_should_be_included_when_full_is_true() {
 		$maybe_string = get_posts_by_author_sql( 'post', true );
 		$this->assertStringContainsString( "post_type = 'post'", $maybe_string );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_post_type_clause_should_be_included_when_full_is_false() {
 		$maybe_string = get_posts_by_author_sql( 'post', false );
 		$this->assertStringContainsString( "post_type = 'post'", $maybe_string );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_post_author_should_create_post_author_clause() {
 		$maybe_string = get_posts_by_author_sql( 'post', true, 1 );
 		$this->assertStringContainsString( 'post_author = 1', $maybe_string );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_public_only_true_should_not_allow_any_private_posts_for_loggedin_user() {
 		$current_user = get_current_user_id();
 		$u            = self::factory()->user->create();
@@ -68,6 +98,9 @@ public function test_public_only_true_should_not_allow_any_private_posts_for_log
 		wp_set_current_user( $current_user );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_public_only_should_default_to_false() {
 		$current_user = get_current_user_id();
 		$u            = self::factory()->user->create();
@@ -78,6 +111,9 @@ public function test_public_only_should_default_to_false() {
 		wp_set_current_user( $current_user );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_public_only_false_should_allow_current_user_access_to_own_private_posts_when_current_user_matches_post_author() {
 		$current_user = get_current_user_id();
 		$u            = self::factory()->user->create();
@@ -89,6 +125,9 @@ public function test_public_only_false_should_allow_current_user_access_to_own_p
 		wp_set_current_user( $current_user );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_public_only_false_should_not_allow_access_to_private_posts_if_current_user_is_not_post_author() {
 		$current_user = get_current_user_id();
 		$u1           = self::factory()->user->create();
@@ -101,6 +140,9 @@ public function test_public_only_false_should_not_allow_access_to_private_posts_
 		wp_set_current_user( $current_user );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_public_only_false_should_allow_current_user_access_to_own_private_posts_when_post_author_is_not_provided() {
 		$current_user = get_current_user_id();
 		$u            = self::factory()->user->create();
@@ -113,6 +155,9 @@ public function test_public_only_false_should_allow_current_user_access_to_own_p
 		wp_set_current_user( $current_user );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_administrator_should_have_access_to_private_posts_when_public_only_is_false() {
 		$current_user = get_current_user_id();
 		$u            = self::factory()->user->create( array( 'role' => 'administrator' ) );
@@ -125,6 +170,9 @@ public function test_administrator_should_have_access_to_private_posts_when_publ
 		wp_set_current_user( $current_user );
 	}
 
+	/**
+	 * @covers ::get_posts_by_author_sql
+	 */
 	public function test_user_has_access_only_to_private_posts_for_certain_post_types() {
 		register_post_type( 'foo', array( 'capabilities' => array( 'read_private_posts' => 'read_private_foo' ) ) );
 		register_post_type( 'bar', array( 'capabilities' => array( 'read_private_posts' => 'read_private_bar' ) ) );
diff --git a/tests/phpunit/tests/post/getTheContent.php b/tests/phpunit/tests/post/getTheContent.php
index 91f0b621f37ee..8ed1562af8435 100644
--- a/tests/phpunit/tests/post/getTheContent.php
+++ b/tests/phpunit/tests/post/getTheContent.php
@@ -3,6 +3,7 @@
 /**
  * @group post
  * @group formatting
+ * @covers ::get_the_content
  */
 class Tests_Post_GetTheContent extends WP_UnitTestCase {
 	/**
diff --git a/tests/phpunit/tests/post/getTheExcerpt.php b/tests/phpunit/tests/post/getTheExcerpt.php
index 49fae7b69587b..8470acea03cd7 100644
--- a/tests/phpunit/tests/post/getTheExcerpt.php
+++ b/tests/phpunit/tests/post/getTheExcerpt.php
@@ -3,6 +3,7 @@
 /**
  * @group post
  * @group formatting
+ * @covers ::get_the_excerpt
  */
 class Tests_Post_GetTheExcerpt extends WP_UnitTestCase {
 
diff --git a/tests/phpunit/tests/post/isPostPubliclyViewable.php b/tests/phpunit/tests/post/isPostPubliclyViewable.php
index 094d5eb408d7a..bd1a5e119fd05 100644
--- a/tests/phpunit/tests/post/isPostPubliclyViewable.php
+++ b/tests/phpunit/tests/post/isPostPubliclyViewable.php
@@ -2,6 +2,7 @@
 
 /**
  * @group post
+ * @covers ::is_post_publicly_viewable
  */
 class Tests_Post_IsPostPubliclyViewable extends WP_UnitTestCase {
 
diff --git a/tests/phpunit/tests/post/isPostStatusViewable.php b/tests/phpunit/tests/post/isPostStatusViewable.php
index 3f9818bbd648e..51f7064fcdde3 100644
--- a/tests/phpunit/tests/post/isPostStatusViewable.php
+++ b/tests/phpunit/tests/post/isPostStatusViewable.php
@@ -2,6 +2,7 @@
 
 /**
  * @group post
+ * @covers ::is_post_status_viewable
  */
 class Tests_Post_IsPostStatusViewable extends WP_UnitTestCase {
 
diff --git a/tests/phpunit/tests/post/isPostTypeViewable.php b/tests/phpunit/tests/post/isPostTypeViewable.php
index 1e642a810d1b9..547162d6e1949 100644
--- a/tests/phpunit/tests/post/isPostTypeViewable.php
+++ b/tests/phpunit/tests/post/isPostTypeViewable.php
@@ -2,8 +2,11 @@
 
 /**
  * @group post
+ *
+ * @covers ::is_post_type_viewable
  */
 class Tests_Post_IsPostTypeViewable extends WP_UnitTestCase {
+
 	public function test_should_return_false_for_non_publicly_queryable_types() {
 		register_post_type(
 			'wptests_pt',
diff --git a/tests/phpunit/tests/post/meta.php b/tests/phpunit/tests/post/meta.php
index 84a8558b7571b..45b0d2cf0caa5 100644
--- a/tests/phpunit/tests/post/meta.php
+++ b/tests/phpunit/tests/post/meta.php
@@ -44,6 +44,9 @@ public static function wpTearDownAfterClass() {
 		self::delete_user( self::$author );
 	}
 
+	/**
+	 * @covers ::add_post_meta
+	 */
 	public function test_unique_postmeta() {
 		// Add a unique post meta item.
 		$this->assertIsInt( add_post_meta( self::$post_id, 'unique', 'value', true ) );
@@ -66,6 +69,9 @@ public function test_unique_postmeta() {
 		$this->assertSame( array(), get_post_meta( self::$post_id, 'unique', false ) );
 	}
 
+	/**
+	 * @covers ::add_post_meta
+	 */
 	public function test_nonunique_postmeta() {
 		// Add two non-unique post meta items.
 		$this->assertIsInt( add_post_meta( self::$post_id, 'nonunique', 'value' ) );
@@ -103,6 +109,9 @@ public function test_nonunique_postmeta() {
 		$this->assertTrue( delete_post_meta_by_key( 'nonunique' ) );
 	}
 
+	/**
+	 * @covers ::update_post_meta
+	 */
 	public function test_update_post_meta() {
 		// Add a unique post meta item.
 		$this->assertIsInt( add_post_meta( self::$post_id, 'unique_update', 'value', true ) );
@@ -129,6 +138,9 @@ public function test_update_post_meta() {
 		$this->assertSame( array( 'new', 'another new' ), get_post_meta( self::$post_id, 'nonunique_update', false ) );
 	}
 
+	/**
+	 * @covers ::delete_post_meta
+	 */
 	public function test_delete_post_meta() {
 		// Add two unique post meta items.
 		$this->assertIsInt( add_post_meta( self::$post_id, 'unique_delete', 'value', true ) );
@@ -145,6 +157,9 @@ public function test_delete_post_meta() {
 		$this->assertSame( 'value', get_post_meta( self::$post_id_2, 'unique_delete', true ) );
 	}
 
+	/**
+	 * @covers ::delete_post_meta
+	 */
 	public function test_delete_post_meta_by_key() {
 		// Add two unique post meta items.
 		$this->assertIsInt( add_post_meta( self::$post_id, 'unique_delete_by_key', 'value', true ) );
@@ -162,6 +177,9 @@ public function test_delete_post_meta_by_key() {
 		$this->assertSame( '', get_post_meta( self::$post_id_2, 'unique_delete_by_key', true ) );
 	}
 
+	/**
+	 * @covers ::get_post_meta_by_id
+	 */
 	public function test_get_post_meta_by_id() {
 		$mid = add_post_meta( self::$post_id, 'get_post_meta_by_key', 'get_post_meta_by_key_value', true );
 		$this->assertIsInt( $mid );
@@ -182,6 +200,9 @@ public function test_get_post_meta_by_id() {
 		delete_metadata_by_mid( 'post', $mid );
 	}
 
+	/**
+	 * @covers ::delete_meta
+	 */
 	public function test_delete_meta() {
 		$mid = add_post_meta( self::$post_id, 'delete_meta', 'delete_meta_value', true );
 		$this->assertIsInt( $mid );
@@ -192,6 +213,9 @@ public function test_delete_meta() {
 		$this->assertFalse( delete_meta( 123456789 ) );
 	}
 
+	/**
+	 * @covers ::update_meta
+	 */
 	public function test_update_meta() {
 		// Add a unique post meta item.
 		$mid1 = add_post_meta( self::$post_id, 'unique_update', 'value', true );
@@ -229,6 +253,8 @@ public function test_update_meta() {
 
 	/**
 	 * @ticket 12860
+	 *
+	 * @covers ::add_post_meta
 	 */
 	public function test_funky_post_meta() {
 		$classy          = new StdClass();
@@ -251,6 +277,8 @@ public function test_funky_post_meta() {
 	/**
 	 * @ticket 38323
 	 * @dataProvider data_register_post_meta
+	 *
+	 * @covers ::register_post_meta
 	 */
 	public function test_register_post_meta( $post_type, $meta_key, $args ) {
 		add_filter( 'register_meta_args', array( $this, 'filter_register_meta_args_set_last_register_meta_call' ), 10, 4 );
@@ -286,6 +314,8 @@ public function filter_register_meta_args_set_last_register_meta_call( $args, $d
 	/**
 	 * @ticket 38323
 	 * @dataProvider data_unregister_post_meta
+	 *
+	 * @covers ::unregister_post_meta
 	 */
 	public function test_unregister_post_meta( $post_type, $meta_key ) {
 		global $wp_meta_keys;
@@ -311,6 +341,8 @@ public function data_unregister_post_meta() {
 
 	/**
 	 * @ticket 44467
+	 *
+	 * @covers ::add_metadata
 	 */
 	public function test_add_metadata_sets_posts_last_changed() {
 		$post_id = self::factory()->post->create();
@@ -323,6 +355,8 @@ public function test_add_metadata_sets_posts_last_changed() {
 
 	/**
 	 * @ticket 44467
+	 *
+	 * @covers ::update_metadata
 	 */
 	public function test_update_metadata_sets_posts_last_changed() {
 		$post_id = self::factory()->post->create();
@@ -335,6 +369,8 @@ public function test_update_metadata_sets_posts_last_changed() {
 
 	/**
 	 * @ticket 44467
+	 *
+	 * @covers ::delete_metadata
 	 */
 	public function test_delete_metadata_sets_posts_last_changed() {
 		$post_id = self::factory()->post->create();
diff --git a/tests/phpunit/tests/post/nav-menu.php b/tests/phpunit/tests/post/nav-menu.php
index 625d1bc12c22a..624b7013f8c9b 100644
--- a/tests/phpunit/tests/post/nav-menu.php
+++ b/tests/phpunit/tests/post/nav-menu.php
@@ -61,6 +61,8 @@ public function test_wp_page_menu_wp_nav_menu_fallback() {
 
 	/**
 	 * @ticket 32464
+	 *
+	 * @covers ::wp_nav_menu
 	 */
 	public function test_wp_nav_menu_empty_container() {
 		$tag_id = self::factory()->tag->create();
@@ -87,6 +89,9 @@ public function test_wp_nav_menu_empty_container() {
 		$this->assertStringStartsWith( '<ul', $menu );
 	}
 
+	/**
+	 * @covers ::wp_get_associated_nav_menu_items
+	 */
 	public function test_wp_get_associated_nav_menu_items() {
 		$tag_id    = self::factory()->tag->create();
 		$cat_id    = self::factory()->category->create();
@@ -183,6 +188,8 @@ public function test_wp_get_associated_nav_menu_items() {
 
 	/**
 	 * @ticket 27113
+	 *
+	 * @covers ::wp_get_nav_menu_items
 	 */
 	public function test_orphan_nav_menu_item() {
 
@@ -216,6 +223,9 @@ public function test_orphan_nav_menu_item() {
 		$this->assertSame( 'WordPress.org', $custom_item->title );
 	}
 
+	/**
+	 * @covers ::wp_get_nav_menu_items
+	 */
 	public function test_wp_get_nav_menu_items_with_taxonomy_term() {
 		register_taxonomy( 'wptests_tax', 'post', array( 'hierarchical' => true ) );
 		$t           = self::factory()->term->create( array( 'taxonomy' => 'wptests_tax' ) );
@@ -397,6 +407,8 @@ public function test_wp_get_nav_menu_items_cache_primes_terms() {
 
 	/**
 	 * @ticket 13910
+	 *
+	 * @covers ::wp_get_nav_menu_name
 	 */
 	public function test_wp_get_nav_menu_name() {
 		// Register a nav menu location.
@@ -416,6 +428,8 @@ public function test_wp_get_nav_menu_name() {
 
 	/**
 	 * @ticket 29460
+	 *
+	 * @covers ::wp_get_nav_menus
 	 */
 	public function test_orderby_name_by_default() {
 		// We are going to create a random number of menus (min 2, max 10).
@@ -445,6 +459,8 @@ public function test_orderby_name_by_default() {
 
 	/**
 	 * @ticket 35324
+	 *
+	 * @covers ::wp_setup_nav_menu_item
 	 */
 	public function test_wp_setup_nav_menu_item_for_post_type_archive() {
 
@@ -478,6 +494,8 @@ public function test_wp_setup_nav_menu_item_for_post_type_archive() {
 
 	/**
 	 * @ticket 35324
+	 *
+	 * @covers ::wp_setup_nav_menu_item
 	 */
 	public function test_wp_setup_nav_menu_item_for_post_type_archive_no_description() {
 
@@ -509,6 +527,8 @@ public function test_wp_setup_nav_menu_item_for_post_type_archive_no_description
 
 	/**
 	 * @ticket 35324
+	 *
+	 * @covers ::wp_setup_nav_menu_item
 	 */
 	public function test_wp_setup_nav_menu_item_for_post_type_archive_custom_description() {
 
@@ -544,6 +564,8 @@ public function test_wp_setup_nav_menu_item_for_post_type_archive_custom_descrip
 
 	/**
 	 * @ticket 35324
+	 *
+	 * @covers ::wp_setup_nav_menu_item
 	 */
 	public function test_wp_setup_nav_menu_item_for_unknown_post_type_archive_no_description() {
 
@@ -565,6 +587,8 @@ public function test_wp_setup_nav_menu_item_for_unknown_post_type_archive_no_des
 
 	/**
 	 * @ticket 19038
+	 *
+	 * @covers ::wp_setup_nav_menu_item
 	 */
 	public function test_wp_setup_nav_menu_item_for_trashed_post() {
 		$post_id = self::factory()->post->create(
@@ -615,6 +639,8 @@ public function test_wp_setup_nav_menu_item_short_circuit_filter() {
 
 	/**
 	 * @ticket 35206
+	 *
+	 * @covers ::wp_nav_menu
 	 */
 	public function test_wp_nav_menu_whitespace_options() {
 		$post_id1 = self::factory()->post->create();
@@ -702,6 +728,8 @@ public function test_wp_nav_menu_whitespace_options() {
 	 * backward compatibility.
 	 *
 	 * @ticket 24587
+	 *
+	 * @covers ::wp_nav_menu
 	 */
 	public function test_wp_nav_menu_filters_are_passed_args_object() {
 		$tag_id = self::factory()->tag->create();
@@ -788,6 +816,8 @@ public function confirm_forth_param_args_object( $ignored_1, $ignored_2, $ignore
 
 	/**
 	 * @ticket 35272
+	 *
+	 * @covers ::wp_get_nav_menu_items
 	 */
 	public function test_no_front_page_class_applied() {
 		$page_id = self::factory()->post->create(
@@ -819,6 +849,8 @@ public function test_no_front_page_class_applied() {
 
 	/**
 	 * @ticket 35272
+	 *
+	 * @covers ::wp_get_nav_menu_items
 	 */
 	public function test_class_applied_to_front_page_item() {
 		$page_id = self::factory()->post->create(
@@ -852,6 +884,8 @@ public function test_class_applied_to_front_page_item() {
 
 	/**
 	 * @ticket 35272
+	 *
+	 * @covers ::wp_get_nav_menu_items
 	 */
 	public function test_class_not_applied_to_taxonomies_with_same_id_as_front_page_item() {
 		global $wpdb;
@@ -949,6 +983,8 @@ public function test_wp_delete_customize_changeset_dependent_auto_drafts() {
 
 	/**
 	 * @ticket 39800
+	 *
+	 * @covers ::wp_get_nav_menu_items
 	 */
 	public function test_parent_ancestor_for_post_archive() {
 
@@ -1036,6 +1072,8 @@ public function test_parent_ancestor_for_post_archive() {
 	/**
 	 * @ticket 43401
 	 * @dataProvider data_iri_current_menu_item
+	 *
+	 * @covers ::wp_get_nav_menu_items
 	 */
 	public function test_iri_current_menu_item( $custom_link, $current = true ) {
 		wp_update_nav_menu_item(
@@ -1079,6 +1117,8 @@ public function data_iri_current_menu_item() {
 	/**
 	 * @ticket 44005
 	 * @group privacy
+	 *
+	 * @covers ::wp_get_nav_menu_items
 	 */
 	public function test_no_privacy_policy_class_applied() {
 		$page_id = self::factory()->post->create(
@@ -1110,6 +1150,8 @@ public function test_no_privacy_policy_class_applied() {
 	/**
 	 * @ticket 44005
 	 * @group privacy
+	 *
+	 * @covers ::wp_get_nav_menu_items
 	 */
 	public function test_class_applied_to_privacy_policy_page_item() {
 		$page_id = self::factory()->post->create(
@@ -1144,6 +1186,8 @@ public function test_class_applied_to_privacy_policy_page_item() {
 	/**
 	 * @ticket 47723
 	 * @dataProvider data_trim_url_for_custom_item
+	 *
+	 * @covers ::wp_get_nav_menu_items
 	 */
 	public function test_trim_url_for_custom_item( $custom_url, $correct_url ) {
 		$custom_item_id = wp_update_nav_menu_item(
@@ -1178,6 +1222,8 @@ public function data_trim_url_for_custom_item() {
 	 * be empty, as the item should get the title from the category object itself.
 	 *
 	 * @ticket 48011
+	 *
+	 * @covers ::wp_update_nav_menu_item
 	 */
 	public function test_wp_update_nav_menu_item_with_special_characters_in_category_name() {
 		$category_name = 'Test Cat - \"Pre-Slashed\" Cat Name & >';
@@ -1215,6 +1261,8 @@ public function test_wp_update_nav_menu_item_with_special_characters_in_category
 	 * of it to ensure that this data is maintained during an import.
 	 *
 	 * @ticket 52189
+	 *
+	 * @covers ::wp_update_nav_menu_item
 	 */
 	public function test_wp_update_nav_menu_item_with_post_date() {
 		$post_date     = '2020-12-28 11:26:35';
diff --git a/tests/phpunit/tests/post/objects.php b/tests/phpunit/tests/post/objects.php
index 01161d09f244c..3daef48911a10 100644
--- a/tests/phpunit/tests/post/objects.php
+++ b/tests/phpunit/tests/post/objects.php
@@ -5,6 +5,9 @@
  */
 class Tests_Post_Objects extends WP_UnitTestCase {
 
+	/**
+	 * @covers ::get_post
+	 */
 	public function test_get_post() {
 		$id = self::factory()->post->create();
 
@@ -66,6 +69,9 @@ public function test_get_post() {
 		$this->assertNull( get_post( false ) );
 	}
 
+	/**
+	 * @covers ::get_post_ancestors
+	 */
 	public function test_get_post_ancestors() {
 		$parent_id     = self::factory()->post->create();
 		$child_id      = self::factory()->post->create();
@@ -100,6 +106,8 @@ public function test_get_post_ancestors() {
 
 	/**
 	 * @ticket 22882
+	 *
+	 * @covers ::get_post_ancestors
 	 */
 	public function test_get_post_ancestors_with_falsey_values() {
 		foreach ( array( null, 0, false, '0', '' ) as $post_id ) {
@@ -108,6 +116,9 @@ public function test_get_post_ancestors_with_falsey_values() {
 		}
 	}
 
+	/**
+	 * @covers ::get_post
+	 */
 	public function test_get_post_category_property() {
 		$post_id = self::factory()->post->create();
 		$post    = get_post( $post_id );
@@ -127,6 +138,9 @@ public function test_get_post_category_property() {
 		$this->assertSame( array( $term2['term_id'], $term3['term_id'], $term1['term_id'] ), $post['post_category'] );
 	}
 
+	/**
+	 * @covers ::get_post
+	 */
 	public function test_get_tags_input_property() {
 		$post_id = self::factory()->post->create();
 		$post    = get_post( $post_id );
@@ -144,6 +158,9 @@ public function test_get_tags_input_property() {
 		$this->assertSame( array( 'Bar', 'Baz', 'Foo' ), $post['tags_input'] );
 	}
 
+	/**
+	 * @covers ::get_post_meta
+	 */
 	public function test_get_page_template_property() {
 		$post_id = self::factory()->post->create();
 		$post    = get_post( $post_id );
@@ -157,6 +174,9 @@ public function test_get_page_template_property() {
 		$this->assertSame( $template, $post->page_template );
 	}
 
+	/**
+	 * @covers ::get_post
+	 */
 	public function test_get_post_filter() {
 		$post = get_post(
 			self::factory()->post->create(
@@ -186,6 +206,8 @@ public function test_get_post_filter() {
 
 	/**
 	 * @ticket 53235
+	 *
+	 * @covers ::get_post
 	 */
 	public function test_numeric_properties_should_be_cast_to_ints() {
 		$post_id  = self::factory()->post->create();
@@ -200,6 +222,9 @@ public function test_numeric_properties_should_be_cast_to_ints() {
 		}
 	}
 
+	/**
+	 * @covers ::get_post
+	 */
 	public function test_get_post_identity() {
 		$post = get_post( self::factory()->post->create() );
 
@@ -209,6 +234,9 @@ public function test_get_post_identity() {
 		$this->assertSame( 'bar', get_post( $post, OBJECT, 'display' )->foo );
 	}
 
+	/**
+	 * @covers ::get_post
+	 */
 	public function test_get_post_array() {
 		$id = self::factory()->post->create();
 
@@ -221,6 +249,8 @@ public function test_get_post_array() {
 
 	/**
 	 * @ticket 22223
+	 *
+	 * @covers ::get_post
 	 */
 	public function test_get_post_cache() {
 		global $wpdb;
diff --git a/tests/phpunit/tests/post/output.php b/tests/phpunit/tests/post/output.php
index a08f7524eefab..11f3a19b6a2c8 100644
--- a/tests/phpunit/tests/post/output.php
+++ b/tests/phpunit/tests/post/output.php
@@ -5,6 +5,8 @@
  *
  * @group post
  * @group formatting
+ *
+ * @covers ::the_content
  */
 class Tests_Post_Output extends WP_UnitTestCase {
 
diff --git a/tests/phpunit/tests/post/pings.php b/tests/phpunit/tests/post/pings.php
index 899965409ea27..5949133221b1b 100644
--- a/tests/phpunit/tests/post/pings.php
+++ b/tests/phpunit/tests/post/pings.php
@@ -6,6 +6,9 @@
  */
 class Tests_Post_Pings extends WP_UnitTestCase {
 
+	/**
+	 * @covers ::get_to_ping
+	 */
 	public function test_returns_to_ping_sites_from_post_id() {
 		$post_id = self::factory()->post->create(
 			array(
@@ -16,6 +19,9 @@ public function test_returns_to_ping_sites_from_post_id() {
 		$this->assertSame( array( 'http://www.example.com', 'http://www.otherexample.com' ), get_to_ping( $post_id ) );
 	}
 
+	/**
+	 * @covers ::get_to_ping
+	 */
 	public function test_returns_to_ping_sites_from_post_object() {
 		$post_id = self::factory()->post->create(
 			array(
@@ -27,17 +33,26 @@ public function test_returns_to_ping_sites_from_post_object() {
 		$this->assertSame( array( 'http://www.example.com', 'http://www.otherexample.com' ), get_to_ping( $post ) );
 	}
 
+	/**
+	 * @covers ::get_pung
+	 */
 	public function test_returns_pinged_sites_from_post_id() {
 		$post_id = self::factory()->post->create( array( 'pinged' => 'foo bar baz' ) );
 		$this->assertSame( array( 'foo', 'bar', 'baz' ), get_pung( $post_id ) );
 	}
 
+	/**
+	 * @covers ::get_pung
+	 */
 	public function test_returns_pinged_sites_from_post_object() {
 		$post_id = self::factory()->post->create( array( 'pinged' => 'foo bar baz' ) );
 		$post    = get_post( $post_id );
 		$this->assertSame( array( 'foo', 'bar', 'baz' ), get_pung( $post ) );
 	}
 
+	/**
+	 * @covers ::get_pung
+	 */
 	public function test_add_ping_with_post_id() {
 		$post_id = self::factory()->post->create();
 		add_ping( $post_id, 'foo' );
@@ -46,12 +61,18 @@ public function test_add_ping_with_post_id() {
 		$this->assertSame( array( 'foo', 'bar', 'baz' ), get_pung( $post_id ) );
 	}
 
+	/**
+	 * @covers ::get_pung
+	 */
 	public function test_add_ping_array_with_post_id() {
 		$post_id = self::factory()->post->create();
 		add_ping( $post_id, array( 'foo', 'bar', 'baz' ) );
 		$this->assertSame( array( 'foo', 'bar', 'baz' ), get_pung( $post_id ) );
 	}
 
+	/**
+	 * @covers ::get_pung
+	 */
 	public function test_add_ping_with_post_object() {
 		$post_id = self::factory()->post->create();
 		$post    = get_post( $post_id );
diff --git a/tests/phpunit/tests/post/postClass.php b/tests/phpunit/tests/post/postClass.php
index a3d250eb23f5a..a2c1ecb6d1406 100644
--- a/tests/phpunit/tests/post/postClass.php
+++ b/tests/phpunit/tests/post/postClass.php
@@ -12,12 +12,18 @@ public function set_up() {
 		$this->post_id = self::factory()->post->create();
 	}
 
+	/**
+	 * @covers ::post_class
+	 */
 	public function test_post_class() {
 		$expected = 'class="' . implode( ' ', get_post_class( '', $this->post_id ) ) . '"';
 		$this->expectOutputString( $expected );
 		post_class( '', $this->post_id );
 	}
 
+	/**
+	 * @covers ::post_class
+	 */
 	public function test_post_class_extra_esc_attr() {
 		$classes              = get_post_class( '', $this->post_id );
 		$escaped_again        = array_map( 'esc_attr', $classes );
diff --git a/tests/phpunit/tests/post/query.php b/tests/phpunit/tests/post/query.php
index 9c118cbb9e5f3..84745c3b3ec71 100644
--- a/tests/phpunit/tests/post/query.php
+++ b/tests/phpunit/tests/post/query.php
@@ -26,6 +26,8 @@ public function tear_down() {
 
 	/**
 	 * @group taxonomy
+	 *
+	 * @covers WP_Query::get
 	 */
 	public function test_category__and_var() {
 		$q = new WP_Query();
@@ -68,6 +70,8 @@ public function test_category__and_var() {
 	/**
 	 * @ticket 28099
 	 * @group taxonomy
+	 *
+	 * @covers WP_Query::get
 	 */
 	public function test_empty_category__in() {
 		$cat_id  = self::factory()->category->create();
@@ -97,6 +101,8 @@ public function test_empty_category__in() {
 
 	/**
 	 * @ticket 22448
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_the_posts_filter() {
 		// Create posts and clear their caches.
@@ -147,6 +153,9 @@ public function the_posts_filter( $posts ) {
 		return $posts;
 	}
 
+	/**
+	 * @covers WP_Query::__construct
+	 */
 	public function test_post__in_ordering() {
 		$post_id1 = self::factory()->post->create(
 			array(
@@ -195,6 +204,8 @@ public function test_post__in_ordering() {
 
 	/**
 	 * @ticket 38034
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_orderby_post__in_array() {
 		$posts = self::factory()->post->create_many( 4 );
@@ -213,6 +224,8 @@ public function test_orderby_post__in_array() {
 
 	/**
 	 * @ticket 38034
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_orderby_post__in_array_with_implied_order() {
 		$posts = self::factory()->post->create_many( 4 );
@@ -229,6 +242,9 @@ public function test_orderby_post__in_array_with_implied_order() {
 		$this->assertSame( $ordered, wp_list_pluck( $q->posts, 'ID' ) );
 	}
 
+	/**
+	 * @covers WP_Query::__construct
+	 */
 	public function test_post__in_attachment_ordering() {
 		$post_id    = self::factory()->post->create();
 		$att_ids    = array();
@@ -292,6 +308,8 @@ public function test_post__in_attachment_ordering() {
 
 	/**
 	 * @ticket 36515
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_post_name__in_ordering() {
 		$post_id1 = self::factory()->post->create(
@@ -327,6 +345,9 @@ public function test_post_name__in_ordering() {
 		$this->assertSame( $ordered, wp_list_pluck( $q->posts, 'post_name' ) );
 	}
 
+	/**
+	 * @covers WP_Query::__construct
+	 */
 	public function test_post_status() {
 		$statuses1 = get_post_stati();
 		$this->assertContains( 'auto-draft', $statuses1 );
@@ -349,6 +370,8 @@ public function test_post_status() {
 
 	/**
 	 * @ticket 17065
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_orderby_array() {
 		global $wpdb;
@@ -385,6 +408,8 @@ public function test_orderby_array() {
 
 	/**
 	 * @ticket 17065
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_order() {
 		global $wpdb;
@@ -425,6 +450,8 @@ public function test_order() {
 
 	/**
 	 * @ticket 29629
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_orderby() {
 		// 'rand' is a valid value.
@@ -460,6 +487,8 @@ public function test_orderby() {
 
 	/**
 	 * @ticket 35692
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_orderby_rand_with_seed() {
 		$q = new WP_Query(
@@ -473,6 +502,8 @@ public function test_orderby_rand_with_seed() {
 
 	/**
 	 * @ticket 35692
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_orderby_rand_should_ignore_invalid_seed() {
 		$q = new WP_Query(
@@ -486,6 +517,8 @@ public function test_orderby_rand_should_ignore_invalid_seed() {
 
 	/**
 	 * @ticket 35692
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_orderby_rand_with_seed_should_be_case_insensitive() {
 		$q = new WP_Query(
@@ -501,6 +534,8 @@ public function test_orderby_rand_with_seed_should_be_case_insensitive() {
 	 * Tests the post_name__in attribute of WP_Query.
 	 *
 	 * @ticket 33065
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_post_name__in() {
 		$q = new WP_Query();
@@ -553,6 +588,8 @@ public function test_post_name__in() {
 
 	/**
 	 * @ticket 36687
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_posts_pre_query_filter_should_bypass_database_query() {
 		add_filter( 'posts_pre_query', array( __CLASS__, 'filter_posts_pre_query' ) );
@@ -577,6 +614,8 @@ public static function filter_posts_pre_query( $posts ) {
 
 	/**
 	 * @ticket 36687
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_posts_pre_query_filter_should_respect_set_found_posts() {
 		global $wpdb;
@@ -612,6 +651,8 @@ public function filter_found_posts( $posts ) {
 
 	/**
 	 * @ticket 36687
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_set_found_posts_fields_ids() {
 		register_post_type( 'wptests_pt' );
@@ -636,6 +677,8 @@ public function test_set_found_posts_fields_ids() {
 
 	/**
 	 * @ticket 36687
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_set_found_posts_fields_idparent() {
 		register_post_type( 'wptests_pt' );
@@ -659,6 +702,8 @@ public function test_set_found_posts_fields_idparent() {
 
 	/**
 	 * @ticket 36687
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_set_found_posts_fields_split_the_query() {
 		register_post_type( 'wptests_pt' );
@@ -685,6 +730,8 @@ public function test_set_found_posts_fields_split_the_query() {
 
 	/**
 	 * @ticket 36687
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_set_found_posts_fields_not_split_the_query() {
 		register_post_type( 'wptests_pt' );
@@ -714,6 +761,8 @@ public function test_set_found_posts_fields_not_split_the_query() {
 	 * @ticket 42860
 	 *
 	 * @dataProvider data_set_found_posts_not_posts_as_an_array
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_set_found_posts_not_posts_as_an_array( $posts, $expected ) {
 		$q = new WP_Query(
@@ -744,6 +793,8 @@ public function data_set_found_posts_not_posts_as_an_array() {
 
 	/**
 	 * @ticket 42469
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_found_posts_should_be_integer_not_string() {
 		$post_id = self::factory()->post->create();
@@ -759,6 +810,8 @@ public function test_found_posts_should_be_integer_not_string() {
 
 	/**
 	 * @ticket 42469
+	 *
+	 * @covers WP_Query::__construct
 	 */
 	public function test_found_posts_should_be_integer_even_if_found_posts_filter_returns_string_value() {
 		$post_id = self::factory()->post->create();
diff --git a/tests/phpunit/tests/post/revisions.php b/tests/phpunit/tests/post/revisions.php
index a4e45aefcf349..5c8d66a8062e8 100644
--- a/tests/phpunit/tests/post/revisions.php
+++ b/tests/phpunit/tests/post/revisions.php
@@ -23,6 +23,8 @@ public static function wpSetUpBeforeClass( WP_UnitTest_Factory $factory ) {
 	 *
 	 * @ticket 20982
 	 * @ticket 16215
+	 *
+	 * @covers ::wp_restore_post_revision
 	 */
 	public function test_revision_restore_updates_edit_last_post_meta() {
 		// Create a post as Author.
@@ -66,6 +68,8 @@ public function test_revision_restore_updates_edit_last_post_meta() {
 	/**
 	 * @ticket 7392
 	 * @ticket 9843
+	 *
+	 * @covers ::wp_update_post
 	 */
 	public function test_revision_dont_save_revision_if_unchanged() {
 		$post    = get_default_post_to_edit( 'post', true );
@@ -136,6 +140,8 @@ public function test_revision_dont_save_revision_if_unchanged() {
 	/**
 	 * @ticket 7392
 	 * @ticket 9843
+	 *
+	 * @covers ::wp_update_post
 	 */
 	public function test_revision_force_save_revision_even_if_unchanged() {
 		add_filter( 'wp_save_post_revision_check_for_changes', '__return_false' );
@@ -211,6 +217,8 @@ public function test_revision_force_save_revision_even_if_unchanged() {
 	 * Tests the Caps used in the action=view case of wp-admin/revision.php
 	 *
 	 * @ticket 16847
+	 *
+	 * @covers ::user_can
 	 */
 	public function test_revision_view_caps_post() {
 		$post_id = self::factory()->post->create(
@@ -244,6 +252,8 @@ public function test_revision_view_caps_post() {
 	 * Tests the Caps used in the action=restore case of wp-admin/revision.php
 	 *
 	 * @ticket 16847
+	 *
+	 * @covers ::user_can
 	 */
 	public function test_revision_restore_caps_post() {
 		$post_id = self::factory()->post->create(
@@ -275,6 +285,8 @@ public function test_revision_restore_caps_post() {
 	 * Tests the Caps used in the action=diff case of wp-admin/revision.php
 	 *
 	 * @ticket 16847
+	 *
+	 * @covers ::user_can
 	 */
 	public function test_revision_diff_caps_post() {
 		$post_id = self::factory()->post->create(
@@ -313,6 +325,8 @@ public function test_revision_diff_caps_post() {
 	 * Tests the Caps used in the action=view case of wp-admin/revision.php with a CPT with Custom Capabilities
 	 *
 	 * @ticket 16847
+	 *
+	 * @covers ::user_can
 	 */
 	public function test_revision_view_caps_cpt() {
 		register_post_type(
@@ -355,6 +369,8 @@ public function test_revision_view_caps_cpt() {
 	 * Tests the Caps used in the action=restore case of wp-admin/revision.php
 	 *
 	 * @ticket 16847
+	 *
+	 * @covers ::user_can
 	 */
 	public function test_revision_restore_caps_cpt() {
 		register_post_type(
@@ -401,6 +417,8 @@ public function test_revision_restore_caps_cpt() {
 	 * Tests the Caps used in the action=restore case of wp-admin/revision.php
 	 *
 	 * @ticket 16847
+	 *
+	 * @covers ::user_can
 	 */
 	public function test_revision_restore_caps_before_publish() {
 		register_post_type(
@@ -461,6 +479,8 @@ public function test_revision_restore_caps_before_publish() {
 	 * Tests the Caps used in the action=diff case of wp-admin/revision.php
 	 *
 	 * @ticket 16847
+	 *
+	 * @covers ::user_can
 	 */
 	public function test_revision_diff_caps_cpt() {
 		register_post_type(
@@ -506,6 +526,8 @@ public function test_revision_diff_caps_cpt() {
 
 	/**
 	 * @ticket 26042
+	 *
+	 * @covers ::wp_get_post_revisions
 	 */
 	public function test_wp_get_post_revisions_should_order_by_post_date() {
 		global $wpdb;
@@ -542,6 +564,8 @@ public function test_wp_get_post_revisions_should_order_by_post_date() {
 
 	/**
 	 * @ticket 26042
+	 *
+	 * @covers ::wp_get_post_revisions
 	 */
 	public function test_wp_get_post_revisions_should_order_by_ID_when_post_date_matches() {
 		$post = self::factory()->post->create_and_get(
@@ -577,6 +601,8 @@ public function test_wp_get_post_revisions_should_order_by_ID_when_post_date_mat
 
 	/**
 	 * @ticket 51550
+	 *
+	 * @covers ::wp_revisions_to_keep
 	 */
 	public function test_wp_revisions_to_keep_filter() {
 		$post = self::factory()->post->create_and_get(
@@ -602,6 +628,8 @@ static function () use ( $expected ) {
 
 	/**
 	 * @ticket 51550
+	 *
+	 * @covers ::wp_revisions_to_keep
 	 */
 	public function test_wp_post_type_revisions_to_keep_filter() {
 		$post = self::factory()->post->create_and_get(
@@ -640,6 +668,8 @@ static function () use ( $expected ) {
 	 * Verifies that trying to create a revision with an invalid ID returns a WP_Error.
 	 *
 	 * @ticket 30009
+	 *
+	 * @covers ::_wp_put_post_revision
 	 */
 	public function test_wp_save_post_revision_error() {
 		$post = self::factory()->post->create_and_get(
diff --git a/tests/phpunit/tests/post/slashes.php b/tests/phpunit/tests/post/slashes.php
index fdab733f1d7a4..667d562d052e8 100644
--- a/tests/phpunit/tests/post/slashes.php
+++ b/tests/phpunit/tests/post/slashes.php
@@ -36,6 +36,8 @@ public function set_up() {
 
 	/**
 	 * Tests the controller function that expects slashed data.
+	 *
+	 * @covers ::edit_post
 	 */
 	public function test_edit_post() {
 		$post_id = self::$post_id;
@@ -73,6 +75,8 @@ public function test_edit_post() {
 
 	/**
 	 * Tests the model function that expects slashed data.
+	 *
+	 * @covers ::wp_insert_post
 	 */
 	public function test_wp_insert_post() {
 		$post_id = wp_insert_post(
@@ -109,6 +113,8 @@ public function test_wp_insert_post() {
 
 	/**
 	 * Tests the model function that expects slashed data.
+	 *
+	 * @covers ::wp_update_post
 	 */
 	public function test_wp_update_post() {
 		$post_id = self::$post_id;
@@ -144,6 +150,9 @@ public function test_wp_update_post() {
 
 	/**
 	 * @ticket 27550
+	 *
+	 * @covers ::wp_trash_post
+	 * @covers ::wp_untrash_post
 	 */
 	public function test_wp_trash_untrash() {
 		$post    = array(
diff --git a/tests/phpunit/tests/post/thumbnails.php b/tests/phpunit/tests/post/thumbnails.php
index fbc8b7bc6e900..7f65d3b4beedb 100644
--- a/tests/phpunit/tests/post/thumbnails.php
+++ b/tests/phpunit/tests/post/thumbnails.php
@@ -31,6 +31,9 @@ public static function tear_down_after_class() {
 		parent::tear_down_after_class();
 	}
 
+	/**
+	 * @covers ::has_post_thumbnail
+	 */
 	public function test_has_post_thumbnail() {
 		$this->assertFalse( has_post_thumbnail( self::$post ) );
 		$this->assertFalse( has_post_thumbnail( self::$post->ID ) );
@@ -53,6 +56,9 @@ public function test_has_post_thumbnail() {
 		$this->assertTrue( has_post_thumbnail() );
 	}
 
+	/**
+	 * @covers ::get_post_thumbnail_id
+	 */
 	public function test_get_post_thumbnail_id() {
 		$this->assertSame( 0, get_post_thumbnail_id( self::$post ) );
 		$this->assertSame( 0, get_post_thumbnail_id( self::$post->ID ) );
@@ -68,6 +74,9 @@ public function test_get_post_thumbnail_id() {
 		$this->assertSame( self::$attachment_id, get_post_thumbnail_id() );
 	}
 
+	/**
+	 * @covers ::update_post_thumbnail_cache
+	 */
 	public function test_update_post_thumbnail_cache() {
 		set_post_thumbnail( self::$post, self::$attachment_id );
 
@@ -88,6 +97,8 @@ public function test_update_post_thumbnail_cache() {
 
 	/**
 	 * @ticket 12235
+	 *
+	 * @covers ::get_the_post_thumbnail_caption
 	 */
 	public function test_get_the_post_thumbnail_caption() {
 		$this->assertSame( '', get_the_post_thumbnail_caption() );
@@ -112,6 +123,8 @@ public function test_get_the_post_thumbnail_caption() {
 
 	/**
 	 * @ticket 12235
+	 *
+	 * @covers ::get_the_post_thumbnail_caption
 	 */
 	public function test_get_the_post_thumbnail_caption_empty() {
 		$post_id       = self::factory()->post->create();
@@ -132,6 +145,8 @@ public function test_get_the_post_thumbnail_caption_empty() {
 
 	/**
 	 * @ticket 12235
+	 *
+	 * @covers ::get_the_post_thumbnail_caption
 	 */
 	public function test_the_post_thumbnail_caption() {
 		$caption = 'This is a caption.';
@@ -153,6 +168,9 @@ public function test_the_post_thumbnail_caption() {
 		the_post_thumbnail_caption( $post_id );
 	}
 
+	/**
+	 * @covers ::get_the_post_thumbnail
+	 */
 	public function test_get_the_post_thumbnail() {
 		$this->assertSame( '', get_the_post_thumbnail() );
 		$this->assertSame( '', get_the_post_thumbnail( self::$post ) );
@@ -174,6 +192,9 @@ public function test_get_the_post_thumbnail() {
 		$this->assertSame( $expected, get_the_post_thumbnail() );
 	}
 
+	/**
+	 * @covers ::the_post_thumbnail
+	 */
 	public function test_the_post_thumbnail() {
 
 		$this->expectOutputString( '' );
@@ -201,6 +222,8 @@ public function test_the_post_thumbnail() {
 
 	/**
 	 * @ticket 33070
+	 *
+	 * @covers ::get_the_post_thumbnail_url
 	 */
 	public function test_get_the_post_thumbnail_url() {
 		$this->assertFalse( has_post_thumbnail( self::$post ) );
@@ -219,6 +242,8 @@ public function test_get_the_post_thumbnail_url() {
 
 	/**
 	 * @ticket 33070
+	 *
+	 * @covers ::get_the_post_thumbnail_url
 	 */
 	public function test_get_the_post_thumbnail_url_with_invalid_post() {
 		set_post_thumbnail( self::$post, self::$attachment_id );
@@ -233,6 +258,8 @@ public function test_get_the_post_thumbnail_url_with_invalid_post() {
 
 	/**
 	 * @ticket 33070
+	 *
+	 * @covers ::the_post_thumbnail_url
 	 */
 	public function test_the_post_thumbnail_url() {
 		$GLOBALS['post'] = self::$post;
@@ -248,6 +275,8 @@ public function test_the_post_thumbnail_url() {
 
 	/**
 	 * @ticket 12922
+	 *
+	 * @covers ::_wp_preview_post_thumbnail_filter
 	 */
 	public function test__wp_preview_post_thumbnail_filter() {
 		$old_post = isset( $GLOBALS['post'] ) ? $GLOBALS['post'] : null;
@@ -268,6 +297,8 @@ public function test__wp_preview_post_thumbnail_filter() {
 
 	/**
 	 * @ticket 37697
+	 *
+	 * @covers ::_wp_preview_post_thumbnail_filter
 	 */
 	public function test__wp_preview_post_thumbnail_filter_secondary_post() {
 		$old_post = isset( $GLOBALS['post'] ) ? $GLOBALS['post'] : null;
@@ -294,6 +325,8 @@ public function test__wp_preview_post_thumbnail_filter_secondary_post() {
 
 	/**
 	 * @ticket 12922
+	 *
+	 * @covers ::wp_insert_post
 	 */
 	public function test_insert_post_with_post_thumbnail() {
 		$post_id = wp_insert_post(
@@ -325,6 +358,8 @@ public function test_insert_post_with_post_thumbnail() {
 
 	/**
 	 * @ticket 37658
+	 *
+	 * @covers ::wp_insert_post
 	 */
 	public function test_insert_attachment_with_post_thumbnail() {
 		// Audio files support featured images.
@@ -364,6 +399,8 @@ public function test_insert_attachment_with_post_thumbnail() {
 
 	/**
 	 * @ticket 39030
+	 *
+	 * @covers ::get_the_post_thumbnail
 	 */
 	public function test_post_thumbnail_size_filter_simple() {
 		$this->current_size_filter_data = 'medium';
@@ -385,6 +422,8 @@ public function test_post_thumbnail_size_filter_simple() {
 	/**
 	 * @ticket 39030
 	 * @dataProvider data_post_thumbnail_size_filter_complex
+	 *
+	 * @covers ::get_the_post_thumbnail
 	 */
 	public function test_post_thumbnail_size_filter_complex( $which_post, $expected ) {
 		$this->current_size_filter_data = array(
diff --git a/tests/phpunit/tests/post/types.php b/tests/phpunit/tests/post/types.php
index df1543fa0c9ca..719d8fc1cd61c 100644
--- a/tests/phpunit/tests/post/types.php
+++ b/tests/phpunit/tests/post/types.php
@@ -24,6 +24,9 @@ public function set_up() {
 		$this->post_type = 'foo1';
 	}
 
+	/**
+	 * @covers ::register_post_type
+	 */
 	public function test_register_post_type() {
 		$this->assertNull( get_post_type_object( 'foo' ) );
 		register_post_type( 'foo' );
@@ -41,6 +44,8 @@ public function test_register_post_type() {
 
 	/**
 	 * @ticket 48558
+	 *
+	 * @covers ::register_post_type
 	 */
 	public function test_register_post_type_return_value() {
 		$this->assertInstanceOf( 'WP_Post_Type', register_post_type( 'foo' ) );
@@ -50,6 +55,8 @@ public function test_register_post_type_return_value() {
 	 * @ticket 31134
 	 *
 	 * @expectedIncorrectUsage register_post_type
+	 *
+	 * @covers ::register_post_type
 	 */
 	public function test_register_post_type_with_too_long_name() {
 		// Post type too long.
@@ -60,6 +67,8 @@ public function test_register_post_type_with_too_long_name() {
 	 * @ticket 31134
 	 *
 	 * @expectedIncorrectUsage register_post_type
+	 *
+	 * @covers ::register_post_type
 	 */
 	public function test_register_post_type_with_empty_name() {
 		// Post type too short.
@@ -68,6 +77,7 @@ public function test_register_post_type_with_empty_name() {
 
 	/**
 	 * @ticket 35985
+	 *
 	 * @covers ::register_post_type
 	 */
 	public function test_register_post_type_exclude_from_search_should_default_to_opposite_value_of_public() {
@@ -82,6 +92,7 @@ public function test_register_post_type_exclude_from_search_should_default_to_op
 
 	/**
 	 * @ticket 35985
+	 *
 	 * @covers ::register_post_type
 	 */
 	public function test_register_post_type_publicly_queryable_should_default_to_value_of_public() {
@@ -96,6 +107,7 @@ public function test_register_post_type_publicly_queryable_should_default_to_val
 
 	/**
 	 * @ticket 35985
+	 *
 	 * @covers ::register_post_type
 	 */
 	public function test_register_post_type_show_ui_should_default_to_value_of_public() {
@@ -110,6 +122,7 @@ public function test_register_post_type_show_ui_should_default_to_value_of_publi
 
 	/**
 	 * @ticket 35985
+	 *
 	 * @covers ::register_post_type
 	 */
 	public function test_register_post_type_show_in_menu_should_default_to_value_of_show_ui() {
@@ -129,6 +142,7 @@ public function test_register_post_type_show_in_menu_should_default_to_value_of_
 
 	/**
 	 * @ticket 35985
+	 *
 	 * @covers ::register_post_type
 	 */
 	public function test_register_post_type_show_in_nav_menus_should_default_to_value_of_public() {
@@ -143,6 +157,7 @@ public function test_register_post_type_show_in_nav_menus_should_default_to_valu
 
 	/**
 	 * @ticket 35985
+	 *
 	 * @covers ::register_post_type
 	 */
 	public function test_register_post_type_show_in_admin_bar_should_default_to_value_of_show_in_menu() {
@@ -180,6 +195,9 @@ public function test_fires_registered_post_type_actions() {
 		$this->assertSame( 3, $action->get_call_count() );
 	}
 
+	/**
+	 * @covers ::register_taxonomy_for_object_type
+	 */
 	public function test_register_taxonomy_for_object_type() {
 		global $wp_taxonomies;
 
@@ -202,11 +220,17 @@ public function test_register_taxonomy_for_object_type() {
 		_unregister_post_type( 'bar' );
 	}
 
+	/**
+	 * @covers ::post_type_exists
+	 */
 	public function test_post_type_exists() {
 		$this->assertFalse( post_type_exists( 'notaposttype' ) );
 		$this->assertTrue( post_type_exists( 'post' ) );
 	}
 
+	/**
+	 * @covers ::post_type_supports
+	 */
 	public function test_post_type_supports() {
 		$this->assertTrue( post_type_supports( 'post', 'post-formats' ) );
 		$this->assertFalse( post_type_supports( 'page', 'post-formats' ) );
@@ -217,6 +241,8 @@ public function test_post_type_supports() {
 
 	/**
 	 * @ticket 21586
+	 *
+	 * @covers ::post_type_supports
 	 */
 	public function test_post_type_with_no_support() {
 		register_post_type( 'foo', array( 'supports' => array() ) );
@@ -232,6 +258,8 @@ public function test_post_type_with_no_support() {
 
 	/**
 	 * @ticket 23302
+	 *
+	 * @covers ::register_post_type
 	 */
 	public function test_post_type_with_no_feed() {
 		global $wp_rewrite;
@@ -245,6 +273,8 @@ public function test_post_type_with_no_feed() {
 
 	/**
 	 * @ticket 30013
+	 *
+	 * @covers ::get_post_type_object
 	 */
 	public function test_get_post_type_object_with_non_scalar_values() {
 		$this->assertFalse( post_type_exists( 'foo' ) );
@@ -265,6 +295,8 @@ public function test_get_post_type_object_with_non_scalar_values() {
 
 	/**
 	 * @ticket 33023
+	 *
+	 * @covers ::get_post_type_object
 	 */
 	public function test_get_post_type_object_casting() {
 		register_post_type( 'foo' );
@@ -282,6 +314,8 @@ public function test_get_post_type_object_casting() {
 
 	/**
 	 * @ticket 38844
+	 *
+	 * @covers ::get_post_type_object
 	 */
 	public function test_get_post_type_object_includes_menu_icon_for_builtin_post_types() {
 		$this->assertSame( 'dashicons-admin-post', get_post_type_object( 'post' )->menu_icon );
@@ -291,6 +325,8 @@ public function test_get_post_type_object_includes_menu_icon_for_builtin_post_ty
 
 	/**
 	 * @ticket 14761
+	 *
+	 * @covers ::unregister_post_type
 	 */
 	public function test_unregister_post_type() {
 		register_post_type( 'foo' );
@@ -299,6 +335,8 @@ public function test_unregister_post_type() {
 
 	/**
 	 * @ticket 14761
+	 *
+	 * @covers ::unregister_post_type
 	 */
 	public function test_unregister_post_type_unknown_post_type() {
 		$this->assertWPError( unregister_post_type( 'foo' ) );
@@ -306,6 +344,8 @@ public function test_unregister_post_type_unknown_post_type() {
 
 	/**
 	 * @ticket 14761
+	 *
+	 * @covers ::unregister_post_type
 	 */
 	public function test_unregister_post_type_twice() {
 		register_post_type( 'foo' );
@@ -315,6 +355,8 @@ public function test_unregister_post_type_twice() {
 
 	/**
 	 * @ticket 14761
+	 *
+	 * @covers ::unregister_post_type
 	 */
 	public function test_unregister_post_type_disallow_builtin_post_type() {
 		$this->assertWPError( unregister_post_type( 'post' ) );
@@ -326,6 +368,8 @@ public function test_unregister_post_type_disallow_builtin_post_type() {
 
 	/**
 	 * @ticket 14761
+	 *
+	 * @covers ::unregister_post_type
 	 */
 	public function test_unregister_post_type_removes_query_vars() {
 		global $wp;
@@ -345,6 +389,8 @@ public function test_unregister_post_type_removes_query_vars() {
 
 	/**
 	 * @ticket 14761
+	 *
+	 * @covers ::unregister_post_type
 	 */
 	public function test_unregister_post_type_removes_rewrite_tags() {
 		$this->set_permalink_structure( '/%postname%' );
@@ -371,6 +417,8 @@ public function test_unregister_post_type_removes_rewrite_tags() {
 
 	/**
 	 * @ticket 14761
+	 *
+	 * @covers ::unregister_post_type
 	 */
 	public function test_unregister_post_type_removes_rewrite_rules() {
 		$this->set_permalink_structure( '/%postname%' );
@@ -392,6 +440,8 @@ public function test_unregister_post_type_removes_rewrite_rules() {
 
 	/**
 	 * @ticket 14761
+	 *
+	 * @covers ::unregister_post_type
 	 */
 	public function test_unregister_post_type_removes_custom_meta_capabilities() {
 		global $post_type_meta_caps;
@@ -418,6 +468,8 @@ public function test_unregister_post_type_removes_custom_meta_capabilities() {
 
 	/**
 	 * @ticket 14761
+	 *
+	 * @covers ::unregister_post_type
 	 */
 	public function test_unregister_post_type_removes_post_type_supports() {
 		global $_wp_post_type_features;
@@ -444,6 +496,8 @@ public function test_unregister_post_type_removes_post_type_supports() {
 
 	/**
 	 * @ticket 14761
+	 *
+	 * @covers ::unregister_post_type
 	 */
 	public function test_unregister_post_type_removes_post_type_from_taxonomies() {
 		global $wp_taxonomies;
@@ -466,6 +520,8 @@ public function test_unregister_post_type_removes_post_type_from_taxonomies() {
 
 	/**
 	 * @ticket 14761
+	 *
+	 * @covers ::unregister_post_type
 	 */
 	public function test_unregister_post_type_removes_the_future_post_hooks() {
 		global $wp_filter;
@@ -485,6 +541,8 @@ public function test_unregister_post_type_removes_the_future_post_hooks() {
 
 	/**
 	 * @ticket 14761
+	 *
+	 * @covers ::unregister_post_type
 	 */
 	public function test_unregister_post_type_removes_meta_box_callback() {
 		global $wp_filter;
@@ -505,6 +563,8 @@ public function test_unregister_post_type_removes_meta_box_callback() {
 
 	/**
 	 * @ticket 14761
+	 *
+	 * @covers ::unregister_post_type
 	 */
 	public function test_unregister_post_type_removes_post_type_from_global() {
 		global $wp_post_types;
@@ -527,6 +587,9 @@ public function test_unregister_post_type_removes_post_type_from_global() {
 
 	/**
 	 * @ticket 14761
+	 *
+	 * @covers ::unregister_post_type
+	 * @covers ::post_type_exists
 	 */
 	public function test_post_type_does_not_exist_after_unregister_post_type() {
 		register_post_type(
@@ -543,6 +606,8 @@ public function test_post_type_does_not_exist_after_unregister_post_type() {
 
 	/**
 	 * @ticket 34010
+	 *
+	 * @covers ::get_post_types_by_support
 	 */
 	public function test_get_post_types_by_support_single_feature() {
 		$this->assertContains( 'post', get_post_types_by_support( 'title' ) );
@@ -553,6 +618,8 @@ public function test_get_post_types_by_support_single_feature() {
 
 	/**
 	 * @ticket 34010
+	 *
+	 * @covers ::get_post_types_by_support
 	 */
 	public function test_get_post_types_by_support_multiple_features() {
 		$this->assertContains( 'post', get_post_types_by_support( array( 'thumbnail', 'author' ) ) );
@@ -561,6 +628,8 @@ public function test_get_post_types_by_support_multiple_features() {
 
 	/**
 	 * @ticket 34010
+	 *
+	 * @covers ::get_post_types_by_support
 	 */
 	public function test_get_post_types_by_support_or_operator() {
 		$this->assertContains( 'post', get_post_types_by_support( array( 'post-formats', 'page-attributes' ), 'or' ) );
@@ -569,6 +638,8 @@ public function test_get_post_types_by_support_or_operator() {
 
 	/**
 	 * @ticket 34010
+	 *
+	 * @covers ::get_post_types_by_support
 	 */
 	public function test_get_post_types_by_support_not_operator() {
 		$this->assertContains( 'attachment', get_post_types_by_support( array( 'thumbnail' ), 'not' ) );
@@ -578,6 +649,8 @@ public function test_get_post_types_by_support_not_operator() {
 
 	/**
 	 * @ticket 34010
+	 *
+	 * @covers ::get_post_types_by_support
 	 */
 	public function test_get_post_types_by_support_excluding_features() {
 		$this->assertSameSets( array(), get_post_types_by_support( array( 'post-formats', 'page-attributes' ) ) );
@@ -585,6 +658,8 @@ public function test_get_post_types_by_support_excluding_features() {
 
 	/**
 	 * @ticket 34010
+	 *
+	 * @covers ::get_post_types_by_support
 	 */
 	public function test_get_post_types_by_support_non_existant_feature() {
 		$this->assertSameSets( array(), get_post_types_by_support( 'somefeature' ) );
diff --git a/tests/phpunit/tests/post/walkerPage.php b/tests/phpunit/tests/post/walkerPage.php
index d8a2312a54eff..18a9d020c74a8 100644
--- a/tests/phpunit/tests/post/walkerPage.php
+++ b/tests/phpunit/tests/post/walkerPage.php
@@ -25,6 +25,8 @@ public function set_up() {
 	 * @ticket 47720
 	 *
 	 * @dataProvider data_start_el_with_empty_attributes
+	 *
+	 * @covers Walker_Page::start_el
 	 */
 	public function test_start_el_with_empty_attributes( $value, $expected ) {
 		$output = '';
diff --git a/tests/phpunit/tests/post/wpAfterInsertPost.php b/tests/phpunit/tests/post/wpAfterInsertPost.php
index f184c66e01288..973ba75ecf108 100644
--- a/tests/phpunit/tests/post/wpAfterInsertPost.php
+++ b/tests/phpunit/tests/post/wpAfterInsertPost.php
@@ -121,6 +121,8 @@ public function action_wp_after_insert_post( $post_id, $post, $update, $post_bef
 	 * Ensure before post is correct when updating a post object.
 	 *
 	 * @ticket 45114
+	 *
+	 * @covers ::wp_update_post
 	 */
 	public function test_update_via_wp_update_post() {
 		$post               = get_post( self::$post_id, ARRAY_A );
@@ -135,6 +137,8 @@ public function test_update_via_wp_update_post() {
 	 * Ensure before post is correct when publishing a post object.
 	 *
 	 * @ticket 45114
+	 *
+	 * @covers ::wp_publish_post
 	 */
 	public function test_update_via_wp_publish_post() {
 		wp_publish_post( self::$post_id );
@@ -147,6 +151,8 @@ public function test_update_via_wp_publish_post() {
 	 * Ensure before post is correct when inserting a new post.
 	 *
 	 * @ticket 45114
+	 *
+	 * @covers ::wp_insert_post
 	 */
 	public function test_new_post_via_wp_insert_post() {
 		wp_insert_post(
@@ -165,6 +171,8 @@ public function test_new_post_via_wp_insert_post() {
 	 * Ensure before post is correct when updating post via REST API.
 	 *
 	 * @ticket 45114
+	 *
+	 * @covers ::wp_update_post
 	 */
 	public function test_update_via_rest_contoller() {
 		wp_set_current_user( self::$admin_id );
@@ -183,6 +191,8 @@ public function test_update_via_rest_contoller() {
 	 * Ensure before post is correct when creating post via REST API.
 	 *
 	 * @ticket 45114
+	 *
+	 * @covers ::wp_insert_post
 	 */
 	public function test_new_post_via_rest_contoller() {
 		wp_set_current_user( self::$admin_id );
@@ -205,6 +215,8 @@ public function test_new_post_via_rest_contoller() {
 	 * Ensure before post is correct when updating post via REST API.
 	 *
 	 * @ticket 45114
+	 *
+	 * @covers ::wp_update_post
 	 */
 	public function test_update_attachment_via_rest_contoller() {
 		wp_set_current_user( self::$admin_id );
diff --git a/tests/phpunit/tests/post/wpGetPostParentId.php b/tests/phpunit/tests/post/wpGetPostParentId.php
index c2160498bc8fc..49fcabe031f43 100644
--- a/tests/phpunit/tests/post/wpGetPostParentId.php
+++ b/tests/phpunit/tests/post/wpGetPostParentId.php
@@ -23,12 +23,18 @@ public static function wpSetUpBeforeClass( WP_UnitTest_Factory $factory ) {
 		self::$post_id        = $factory->post->create( array( 'post_parent' => self::$parent_post_id ) );
 	}
 
+	/**
+	 * @covers ::wp_get_post_parent_id
+	 */
 	public function test_wp_get_post_parent_id_with_post_object() {
 		$post = get_post( self::$post_id );
 		$this->assertInstanceOf( 'WP_Post', $post );
 		$this->assertSame( self::$parent_post_id, wp_get_post_parent_id( $post ) );
 	}
 
+	/**
+	 * @covers ::wp_get_post_parent_id
+	 */
 	public function test_wp_get_post_parent_id_with_post_id() {
 		$this->assertSame( self::$parent_post_id, wp_get_post_parent_id( self::$post_id ) );
 	}
@@ -42,16 +48,25 @@ public function test_wp_get_post_parent_id_with_no_post_argument_default_to_glob
 		$this->assertSame( self::$parent_post_id, wp_get_post_parent_id() );
 	}
 
+	/**
+	 * @covers ::wp_get_post_parent_id
+	 */
 	public function test_wp_get_post_parent_id_with_non_existing_id_default_to_global_post_id() {
 		$GLOBALS['post'] = get_post( self::$post_id );
 		$this->assertSame( self::$parent_post_id, wp_get_post_parent_id( 0 ) );
 	}
 
+	/**
+	 * @covers ::wp_get_post_parent_id
+	 */
 	public function test_wp_get_post_parent_id_with_boolean_default_to_global_post_id() {
 		$GLOBALS['post'] = get_post( self::$post_id );
 		$this->assertSame( self::$parent_post_id, wp_get_post_parent_id( false ) );
 	}
 
+	/**
+	 * @covers ::wp_get_post_parent_id
+	 */
 	public function test_wp_get_post_parent_id_with_string_default_to_false() {
 		$GLOBALS['post'] = get_post( self::$post_id );
 		$this->assertFalse( wp_get_post_parent_id( 'string' ) );
diff --git a/tests/phpunit/tests/post/wpInsertPost.php b/tests/phpunit/tests/post/wpInsertPost.php
index 1b0838cf06fd5..4a79f46f5994f 100644
--- a/tests/phpunit/tests/post/wpInsertPost.php
+++ b/tests/phpunit/tests/post/wpInsertPost.php
@@ -1240,6 +1240,8 @@ public function test_insert_invalid_post_date() {
 
 	/**
 	 * @ticket 11863
+	 *
+	 * @covers ::wp_trash_post
 	 */
 	public function test_trashing_a_post_should_add_trashed_suffix_to_post_name() {
 		$trashed_about_page_id = self::factory()->post->create(
@@ -1255,6 +1257,8 @@ public function test_trashing_a_post_should_add_trashed_suffix_to_post_name() {
 
 	/**
 	 * @ticket 11863
+	 *
+	 * @covers ::wp_trash_post
 	 */
 	public function test_trashed_suffix_should_be_added_to_post_with__trashed_in_slug() {
 		$trashed_about_page_id = self::factory()->post->create(
@@ -1271,6 +1275,8 @@ public function test_trashed_suffix_should_be_added_to_post_with__trashed_in_slu
 
 	/**
 	 * @ticket 11863
+	 *
+	 * @covers ::wp_untrash_post
 	 */
 	public function test_trashed_posts_original_post_name_should_be_reassigned_after_untrashing() {
 		$about_page_id = self::factory()->post->create(
@@ -1288,6 +1294,8 @@ public function test_trashed_posts_original_post_name_should_be_reassigned_after
 
 	/**
 	 * @ticket 11863
+	 *
+	 * @covers ::wp_insert_post
 	 */
 	public function test_creating_a_new_post_should_add_trashed_suffix_to_post_name_of_trashed_posts_with_the_desired_slug() {
 		$trashed_about_page_id = self::factory()->post->create(
@@ -1312,6 +1320,8 @@ public function test_creating_a_new_post_should_add_trashed_suffix_to_post_name_
 
 	/**
 	 * @ticket 11863
+	 *
+	 * @covers ::wp_untrash_post
 	 */
 	public function test_untrashing_a_post_with_a_stored_desired_post_name_should_get_its_post_name_suffixed_if_another_post_has_taken_the_desired_post_name() {
 		$about_page_id = self::factory()->post->create(
@@ -1346,6 +1356,8 @@ public function test_untrashing_a_post_with_a_stored_desired_post_name_should_ge
 	/**
 	 * @ticket 23022
 	 * @dataProvider data_various_post_statuses
+	 *
+	 * @covers ::wp_untrash_post
 	 */
 	public function test_untrashing_a_post_should_always_restore_it_to_draft_status( $post_status ) {
 		$page_id = self::factory()->post->create(
@@ -1364,6 +1376,8 @@ public function test_untrashing_a_post_should_always_restore_it_to_draft_status(
 	/**
 	 * @ticket 23022
 	 * @dataProvider data_various_post_statuses
+	 *
+	 * @covers ::wp_untrash_post
 	 */
 	public function test_wp_untrash_post_status_filter_restores_post_to_correct_status( $post_status ) {
 		add_filter( 'wp_untrash_post_status', 'wp_untrash_post_set_previous_status', 10, 3 );
@@ -1419,6 +1433,9 @@ public function data_various_post_statuses() {
 	 *
 	 * @ticket 42464
 	 * @dataProvider data_various_post_types
+	 *
+	 * @covers ::wp_insert_post
+	 * @covers ::wp_update_post
 	 */
 	public function test_contributor_cannot_set_post_slug( $post_type ) {
 		wp_set_current_user( self::$user_ids['contributor'] );
@@ -1458,6 +1475,9 @@ public function test_contributor_cannot_set_post_slug( $post_type ) {
 	 *
 	 * @ticket 42464
 	 * @dataProvider data_various_post_types
+	 *
+	 * @covers ::wp_insert_post
+	 * @covers ::wp_update_post
 	 */
 	public function test_administrator_can_set_post_slug( $post_type ) {
 		wp_set_current_user( self::$user_ids['administrator'] );
@@ -1499,6 +1519,9 @@ public function test_administrator_can_set_post_slug( $post_type ) {
 	 * These assertions failed prior to ticket #42464.
 	 *
 	 * @ticket 42464
+	 *
+	 * @covers ::wp_insert_post
+	 * @covers ::wp_update_post
 	 */
 	public function test_administrator_cannot_set_post_slug_on_post_type_they_cannot_publish() {
 		wp_set_current_user( self::$user_ids['administrator'] );
@@ -1535,6 +1558,8 @@ public function test_administrator_cannot_set_post_slug_on_post_type_they_cannot
 
 	/**
 	 * @ticket 25347
+	 *
+	 * @covers ::wp_insert_post
 	 */
 	public function test_scheduled_post_with_a_past_date_should_be_published() {
 
diff --git a/tests/phpunit/tests/post/wpListPages.php b/tests/phpunit/tests/post/wpListPages.php
index 38ba729cee20b..90a94cfcdd1cb 100644
--- a/tests/phpunit/tests/post/wpListPages.php
+++ b/tests/phpunit/tests/post/wpListPages.php
@@ -2,6 +2,8 @@
 
 /**
  * @group post
+ *
+ * @covers ::wp_list_pages
  */
 class Tests_Post_wpListPages extends WP_UnitTestCase {
 	/**
@@ -387,7 +389,6 @@ public function test_wp_list_pages_link_after() {
 		$this->assertSameIgnoreEOL( $expected, wp_list_pages( $args ) );
 	}
 
-
 	public function test_wp_list_pages_include() {
 		$args = array(
 			'echo'    => false,
diff --git a/tests/phpunit/tests/post/wpPost.php b/tests/phpunit/tests/post/wpPost.php
index 58a7f758e7946..02963aa128872 100644
--- a/tests/phpunit/tests/post/wpPost.php
+++ b/tests/phpunit/tests/post/wpPost.php
@@ -2,6 +2,8 @@
 
 /**
  * @group post
+ *
+ * @covers WP_Post::get_instance
  */
 class Tests_Post_wpPost extends WP_UnitTestCase {
 	protected static $post_id;
diff --git a/tests/phpunit/tests/post/wpPostType.php b/tests/phpunit/tests/post/wpPostType.php
index 2a8ad42f0a2ca..6d51ad65ffeaf 100644
--- a/tests/phpunit/tests/post/wpPostType.php
+++ b/tests/phpunit/tests/post/wpPostType.php
@@ -12,6 +12,10 @@ public function test_instances() {
 		}
 	}
 
+	/**
+	 * @covers WP_Post_Type::add_supports
+	 * @covers WP_Post_Type::remove_supports
+	 */
 	public function test_add_supports_defaults() {
 		$post_type        = 'cpt';
 		$post_type_object = new WP_Post_Type( $post_type );
@@ -32,6 +36,10 @@ public function test_add_supports_defaults() {
 		$this->assertSameSets( array(), $post_type_supports_after );
 	}
 
+	/**
+	 * @covers WP_Post_Type::add_supports
+	 * @covers WP_Post_Type::remove_supports
+	 */
 	public function test_add_supports_custom() {
 		$post_type        = 'cpt';
 		$post_type_object = new WP_Post_Type(
@@ -66,6 +74,9 @@ public function test_add_supports_custom() {
 	 * Test that supports can optionally receive nested args.
 	 *
 	 * @ticket 40413
+	 *
+	 * @covers WP_Post_Type::add_supports
+	 * @covers WP_Post_Type::remove_supports
 	 */
 	public function test_add_supports_custom_with_args() {
 		$post_type        = 'cpt';
@@ -103,6 +114,10 @@ public function test_add_supports_custom_with_args() {
 		$this->assertSameSets( array(), $post_type_supports_after );
 	}
 
+	/**
+	 * @covers WP_Post_Type::__construct
+	 * @covers WP_Post_Type::add_rewrite_rules
+	 */
 	public function test_does_not_add_query_var_if_not_public() {
 		$this->set_permalink_structure( '/%postname%' );
 
@@ -122,6 +137,10 @@ public function test_does_not_add_query_var_if_not_public() {
 		$this->assertNotContains( 'foobar', $wp->public_query_vars );
 	}
 
+	/**
+	 * @covers WP_Post_Type::__construct
+	 * @covers WP_Post_Type::add_rewrite_rules
+	 */
 	public function test_adds_query_var_if_public() {
 		$this->set_permalink_structure( '/%postname%' );
 
@@ -148,6 +167,10 @@ public function test_adds_query_var_if_public() {
 		$this->assertFalse( $in_array_after );
 	}
 
+	/**
+	 * @covers WP_Post_Type::add_rewrite_rules
+	 * @covers WP_Post_Type::remove_rewrite_rules
+	 */
 	public function test_adds_rewrite_rules() {
 		$this->set_permalink_structure( '/%postname%' );
 
@@ -173,6 +196,10 @@ public function test_adds_rewrite_rules() {
 		$this->assertFalse( array_search( "%$post_type%", $rewrite_tags_after, true ) );
 	}
 
+	/**
+	 * @covers WP_Post_Type::register_meta_boxes
+	 * @covers WP_Post_Type::unregister_meta_boxes
+	 */
 	public function test_register_meta_boxes() {
 		$post_type        = 'cpt';
 		$post_type_object = new WP_Post_Type( $post_type, array( 'register_meta_box_cb' => '__return_false' ) );
@@ -186,6 +213,10 @@ public function test_register_meta_boxes() {
 		$this->assertFalse( $has_action_after );
 	}
 
+	/**
+	 * @covers WP_Post_Type::add_hooks
+	 * @covers WP_Post_Type::remove_hooks
+	 */
 	public function test_adds_future_post_hook() {
 		$post_type        = 'cpt';
 		$post_type_object = new WP_Post_Type( $post_type );
@@ -198,6 +229,10 @@ public function test_adds_future_post_hook() {
 		$this->assertFalse( $has_action_after );
 	}
 
+	/**
+	 * @covers WP_Post_Type::register_taxonomies
+	 * @covers WP_Post_Type::unregister_taxonomies
+	 */
 	public function test_register_taxonomies() {
 		global $wp_post_types;
 
diff --git a/tests/phpunit/tests/post/wpPublishPost.php b/tests/phpunit/tests/post/wpPublishPost.php
index 25fa87a71c91d..250fb0ec72802 100644
--- a/tests/phpunit/tests/post/wpPublishPost.php
+++ b/tests/phpunit/tests/post/wpPublishPost.php
@@ -139,6 +139,8 @@ public function test_wp_publish_post_and_avoid_content_filtering() {
 	 * Ensure wp_publish_post does not add default category in error.
 	 *
 	 * @ticket 51292
+	 *
+	 * @covers ::wp_publish_post
 	 */
 	public function test_wp_publish_post_respects_current_categories() {
 		$post_id     = self::$auto_draft_id;
@@ -157,9 +159,9 @@ public function test_wp_publish_post_respects_current_categories() {
 
 	/**
 	 * Ensure wp_publish_post adds default category.
+	 * @ticket 51292
 	 *
 	 * @covers ::wp_publish_post
-	 * @ticket 51292
 	 */
 	public function test_wp_publish_post_adds_default_category() {
 		$post_id = self::$auto_draft_id;
@@ -177,9 +179,9 @@ public function test_wp_publish_post_adds_default_category() {
 
 	/**
 	 * Ensure wp_publish_post adds default category when tagged.
+	 * @ticket 51292
 	 *
 	 * @covers ::wp_publish_post
-	 * @ticket 51292
 	 */
 	public function test_wp_publish_post_adds_default_category_when_tagged() {
 		$post_id = self::$auto_draft_id;
@@ -198,9 +200,9 @@ public function test_wp_publish_post_adds_default_category_when_tagged() {
 
 	/**
 	 * Ensure wp_publish_post does not add default term in error.
+	 * @ticket 51292
 	 *
 	 * @covers ::wp_publish_post
-	 * @ticket 51292
 	 */
 	public function test_wp_publish_post_respects_current_terms() {
 		// Create custom taxonomy to test with.
@@ -233,9 +235,9 @@ public function test_wp_publish_post_respects_current_terms() {
 
 	/**
 	 * Ensure wp_publish_post adds default term.
+	 * @ticket 51292
 	 *
 	 * @covers ::wp_publish_post
-	 * @ticket 51292
 	 */
 	public function test_wp_publish_post_adds_default_term() {
 		// Create custom taxonomy to test with.
diff --git a/tests/phpunit/tests/post/wpUniquePostSlug.php b/tests/phpunit/tests/post/wpUniquePostSlug.php
index f242159987e3f..56390550bfcd9 100644
--- a/tests/phpunit/tests/post/wpUniquePostSlug.php
+++ b/tests/phpunit/tests/post/wpUniquePostSlug.php
@@ -8,6 +8,8 @@ class Tests_Post_wpUniquePostSlug extends WP_UnitTestCase {
 
 	/**
 	 * @ticket 21013
+	 *
+	 * @covers ::wp_insert_post
 	 */
 	public function test_non_latin_slugs() {
 		$author_id = self::factory()->user->create( array( 'role' => 'editor' ) );
@@ -42,6 +44,8 @@ public function test_non_latin_slugs() {
 
 	/**
 	 * @ticket 18962
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_with_multiple_hierarchies() {
 		register_post_type( 'post-type-1', array( 'hierarchical' => true ) );
@@ -68,6 +72,8 @@ public function test_with_multiple_hierarchies() {
 
 	/**
 	 * @ticket 30339
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_with_hierarchy() {
 		register_post_type( 'post-type-1', array( 'hierarchical' => true ) );
@@ -91,6 +97,8 @@ public function test_with_hierarchy() {
 
 	/**
 	 * @ticket 18962
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_wp_unique_post_slug_with_hierarchy_and_attachments() {
 		register_post_type( 'post-type-1', array( 'hierarchical' => true ) );
@@ -129,6 +137,8 @@ public function test_wp_unique_post_slug_with_hierarchy_and_attachments() {
 
 	/**
 	 * @dataProvider data_allowed_post_statuses_should_not_be_forced_to_be_unique
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_allowed_post_statuses_should_not_be_forced_to_be_unique( $status ) {
 		$p1 = self::factory()->post->create(
@@ -157,6 +167,9 @@ public function data_allowed_post_statuses_should_not_be_forced_to_be_unique() {
 		);
 	}
 
+	/**
+	 * @covers ::wp_unique_post_slug
+	 */
 	public function test_revisions_should_not_be_forced_to_be_unique() {
 		$p1 = self::factory()->post->create(
 			array(
@@ -178,6 +191,8 @@ public function test_revisions_should_not_be_forced_to_be_unique() {
 
 	/**
 	 * @ticket 5305
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_slugs_resulting_in_permalinks_that_resemble_year_archives_should_be_suffixed() {
 		$this->set_permalink_structure( '/%postname%/' );
@@ -195,6 +210,8 @@ public function test_slugs_resulting_in_permalinks_that_resemble_year_archives_s
 
 	/**
 	 * @ticket 5305
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_slugs_resulting_in_permalinks_that_resemble_year_archives_should_not_be_suffixed_for_already_published_posts() {
 		$this->set_permalink_structure( '/%postname%/' );
@@ -213,6 +230,8 @@ public function test_slugs_resulting_in_permalinks_that_resemble_year_archives_s
 
 	/**
 	 * @ticket 5305
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_yearlike_slugs_should_not_be_suffixed_if_permalink_structure_does_not_result_in_a_clash_with_year_archives() {
 		$this->set_permalink_structure( '/%year%/%postname%/' );
@@ -230,6 +249,8 @@ public function test_yearlike_slugs_should_not_be_suffixed_if_permalink_structur
 
 	/**
 	 * @ticket 5305
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_slugs_resulting_in_permalinks_that_resemble_month_archives_should_be_suffixed() {
 		$this->set_permalink_structure( '/%year%/%postname%/' );
@@ -247,6 +268,8 @@ public function test_slugs_resulting_in_permalinks_that_resemble_month_archives_
 
 	/**
 	 * @ticket 5305
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_monthlike_slugs_should_not_be_suffixed_if_permalink_structure_does_not_result_in_a_clash_with_month_archives() {
 		$this->set_permalink_structure( '/%year%/foo/%postname%/' );
@@ -264,6 +287,8 @@ public function test_monthlike_slugs_should_not_be_suffixed_if_permalink_structu
 
 	/**
 	 * @ticket 5305
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_monthlike_slugs_should_not_be_suffixed_for_invalid_month_numbers() {
 		$this->set_permalink_structure( '/%year%/%postname%/' );
@@ -281,6 +306,8 @@ public function test_monthlike_slugs_should_not_be_suffixed_for_invalid_month_nu
 
 	/**
 	 * @ticket 5305
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_slugs_resulting_in_permalinks_that_resemble_day_archives_should_be_suffixed() {
 		$this->set_permalink_structure( '/%year%/%monthnum%/%postname%/' );
@@ -298,6 +325,8 @@ public function test_slugs_resulting_in_permalinks_that_resemble_day_archives_sh
 
 	/**
 	 * @ticket 5305
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_daylike_slugs_should_not_be_suffixed_if_permalink_structure_does_not_result_in_a_clash_with_day_archives() {
 		$this->set_permalink_structure( '/%year%/%monthnum%/%day%/%postname%/' );
@@ -315,6 +344,8 @@ public function test_daylike_slugs_should_not_be_suffixed_if_permalink_structure
 
 	/**
 	 * @ticket 5305
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_daylike_slugs_should_not_be_suffixed_for_invalid_day_numbers() {
 		$this->set_permalink_structure( '/%year%/%monthnum%/%postname%/' );
@@ -332,6 +363,8 @@ public function test_daylike_slugs_should_not_be_suffixed_for_invalid_day_number
 
 	/**
 	 * @ticket 34971
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_embed_slug_should_be_suffixed_for_posts() {
 		$this->set_permalink_structure( '/%postname%/' );
@@ -349,6 +382,8 @@ public function test_embed_slug_should_be_suffixed_for_posts() {
 
 	/**
 	 * @ticket 34971
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_embed_slug_should_be_suffixed_for_pages() {
 		$this->set_permalink_structure( '/%postname%/' );
@@ -366,6 +401,8 @@ public function test_embed_slug_should_be_suffixed_for_pages() {
 
 	/**
 	 * @ticket 34971
+	 *
+	 * @covers ::wp_unique_post_slug
 	 */
 	public function test_embed_slug_should_be_suffixed_for_attachments() {
 		$this->set_permalink_structure( '/%postname%/' );
diff --git a/tests/phpunit/tests/privacy/wpPrivacyGeneratePersonalDataExportFile.php b/tests/phpunit/tests/privacy/wpPrivacyGeneratePersonalDataExportFile.php
index 840f756344f14..cdbf6469a5275 100644
--- a/tests/phpunit/tests/privacy/wpPrivacyGeneratePersonalDataExportFile.php
+++ b/tests/phpunit/tests/privacy/wpPrivacyGeneratePersonalDataExportFile.php
@@ -9,6 +9,8 @@
  * @group privacy
  * @covers ::wp_privacy_generate_personal_data_export_file
  * @requires extension zip
+ *
+ * @covers ::wp_privacy_generate_personal_data_export_file
  */
 class Tests_Privacy_wpPrivacyGeneratePersonalDataExportFile extends WP_UnitTestCase {
 	/**