diff --git a/tests/htdocs/inc/SetWlanIpMailTest.php b/tests/htdocs/inc/SetWlanIpMailTest.php
deleted file mode 100644
index 97c04b97c..000000000
--- a/tests/htdocs/inc/SetWlanIpMailTest.php
+++ /dev/null
@@ -1,69 +0,0 @@
-<?php
-namespace JukeBox\Inc;
-
-use PHPUnit\Framework\TestCase;
-use phpmock\phpunit\PHPMock;
-
-class SetWlanIpMailTest extends TestCase {
-
-    use PHPMock;
-
-    public function setUp(): void {
-        $parse_ini_file = $this->getFunctionMock(__NAMESPACE__, 'parse_ini_file');
-        $parse_ini_file->expects($this->atLeastOnce())->willReturn(
-            array(
-                "DEBUG_WebApp" => "FALSE",
-                "DEBUG_WebApp_API" => "FALSE"
-            ));
-        $_SERVER['REQUEST_METHOD'] = '';
-        require_once 'htdocs/inc.setWlanIpMail.php';
-    }
-
-    /**
-     * @runInSeparateProcess
-     */
-    public function testValidateEmail() {
-        $filter_var = $this->getFunctionMock(__NAMESPACE__, 'filter_var');
-        $filter_var->expects($this->atLeastOnce())->willReturnCallback(
-            function ($email, $filter) {
-                $this->assertEquals(FILTER_VALIDATE_EMAIL, $filter);
-                return filter_var($email, $filter);
-            }
-        );
-
-        $this->assertTrue(filter_var('test@example.com', FILTER_VALIDATE_EMAIL));
-        $this->assertFalse(filter_var('invalid-email', FILTER_VALIDATE_EMAIL));
-    }
-
-    /**
-     * @runInSeparateProcess
-     */
-    public function testSanitizeEmail() {
-        $htmlspecialchars = $this->getFunctionMock(__NAMESPACE__, 'htmlspecialchars');
-        $htmlspecialchars->expects($this->atLeastOnce())->willReturnCallback(
-            function ($string, $flags, $encoding) {
-                $this->assertEquals(ENT_QUOTES, $flags);
-                $this->assertEquals('UTF-8', $encoding);
-                return htmlspecialchars($string, $flags, $encoding);
-            }
-        );
-
-        $this->assertEquals('test@example.com', htmlspecialchars('test@example.com', ENT_QUOTES, 'UTF-8'));
-        $this->assertEquals('test&lt;script&gt;@example.com', htmlspecialchars('test<script>@example.com', ENT_QUOTES, 'UTF-8'));
-    }
-
-    /**
-     * @runInSeparateProcess
-     */
-    public function testExecFunctionReplacement() {
-        $shell_exec = $this->getFunctionMock(__NAMESPACE__, 'shell_exec');
-        $shell_exec->expects($this->atLeastOnce())->willReturnCallback(
-            function ($command) {
-                $this->assertStringContainsString('sudo', $command);
-                return shell_exec($command);
-            }
-        );
-
-        $this->assertNotNull(shell_exec('sudo echo "test"'));
-    }
-}