Add tests for PHP writer

tests/Writers/PhpWriterTest.php

@@ -0,0 +1,147 @@
+<?php
+
+namespace ConfigWriter\Tests;
+
+use PHPUnit\Framework\TestCase;
+use ReflectionClass;
+use ConfigWriter\Config;
+use ConfigWriter\Writers\PhpWriter;
+
+class PhpWriterTest extends TestCase
+{
+    /**
+     * @var \ConfigWriter\Config
+     */
+    protected $config;
+
+    public function setUp()
+    {
+        $this->config = new Config;
+    }
+
+    /**
+     * @covers \ConfigWriter\Writers\PhpWriter::write()
+     * @covers \ConfigWriter\Writers\PhpWriter::export()
+     * @covers \ConfigWriter\Writers\PhpWriter::comment()
+     */
+    public function testWriteConfig()
+    {
+        $database = $this->config->addSection('database', [], 'Database settings');
+        $database->addRecord('user', 'root', 'Database username');
+        $database->addRecord('pass', '', 'Database password');
+
+        $development = $this->config->addSection('development', [], 'Development settings');
+        $development->addRecord('debug', true, 'Debugging');
+        $development->addRecord('errors', 32767, 'Error reporting');
+
+        $filename = sys_get_temp_dir() . '/ConfigWriterTests/' . uniqid(rand()) . '.php';
+        $this->config->toFile($filename);
+
+        $expected = <<<EOD
+<?php
+
+return [
+    // Database settings
+    'database' => [
+        'user' => 'root', // Database username
+        'pass' => '', // Database password
+    ],
+    // Development settings
+    'development' => [
+        'debug' => true, // Debugging
+        'errors' => 32767, // Error reporting
+    ],
+];
+
+EOD;
+        $actual = file_get_contents($filename);
+
+        $this->assertEquals($expected, $actual);
+    }
+
+    /**
+     * @covers \ConfigWriter\Writers\PhpWriter::comment()
+     */
+    public function testCStyleComment()
+    {
+        $reflection = new ReflectionClass(PhpWriter::class);
+        $method = $reflection->getMethod('comment');
+        $method->setAccessible(true);
+
+        $expected = '// Hello World';
+        $actual = $method->invokeArgs(new PhpWriter, ['Hello World', 'c-style']);
+
+        $this->assertEquals($expected, $actual);
+    }
+
+    /**
+     * @covers \ConfigWriter\Writers\PhpWriter::comment()
+     */
+    public function testPerlStyleComment()
+    {
+        $reflection = new ReflectionClass(PhpWriter::class);
+        $method = $reflection->getMethod('comment');
+        $method->setAccessible(true);
+
+        $expected = '# Hello World';
+        $actual = $method->invokeArgs(new PhpWriter, ['Hello World', 'perl-style']);
+
+        $this->assertEquals($expected, $actual);
+    }
+
+    /**
+     * @covers \ConfigWriter\Writers\PhpWriter::comment()
+     */
+    public function testMultiLineComment()
+    {
+        $reflection = new ReflectionClass(PhpWriter::class);
+        $method = $reflection->getMethod('comment');
+        $method->setAccessible(true);
+
+        $expected = '/* Hello World */';
+        $actual = $method->invokeArgs(new PhpWriter, ['Hello World', 'multi-line']);
+
+        $this->assertEquals($expected, $actual);
+    }
+
+    /**
+     * @covers \ConfigWriter\Writers\PhpWriter::comment()
+     */
+    public function testDocBlockComment()
+    {
+        $reflection = new ReflectionClass(PhpWriter::class);
+        $method = $reflection->getMethod('comment');
+        $method->setAccessible(true);
+
+        $expected = '/** Hello World */';
+        $actual = $method->invokeArgs(new PhpWriter, ['Hello World', 'doc-block']);
+
+        $this->assertEquals($expected, $actual);
+    }
+
+    /**
+     * @covers \ConfigWriter\Writers\PhpWriter::comment()
+     */
+    public function testUnknownComment()
+    {
+        $reflection = new ReflectionClass(PhpWriter::class);
+        $method = $reflection->getMethod('comment');
+        $method->setAccessible(true);
+
+        $expected = '// Hello World';
+        $actual = $method->invokeArgs(new PhpWriter, ['Hello World', 'unknown-comment']);
+
+        $this->assertEquals($expected, $actual);
+    }
+
+    /**
+     * @covers \ConfigWriter\Writers\PhpWriter::getSupportedExtensions()
+     */
+    public function testGetSupportedExtensions()
+    {
+        $expected = ['php'];
+        $actual = PhpWriter::getSupportedExtensions();
+
+        $this->assertEquals($expected, $actual);
+    }
+}