Add tests for AppExtension

Author: petk

src/AppBundle/Twig/AppExtension.php

@@ -30,9 +30,9 @@ public function __construct(Parser $parser)
      */
     public function getFilters()
     {
-        return array(
+        return [
             new \Twig_SimpleFilter('md2html', [$this, 'markdownToHtml'], ['is_safe' => ['html']]),
-        );
+        ];
     }
 
     /**

tests/AppBundle/Fixtures/content_1.html

@@ -0,0 +1,4 @@
+<h1>Heading 1</h1>
+<p>Text</p>
+<h2>Heading 2</h2>
+<pre><code class="language-php">$code = true;</code></pre>

tests/AppBundle/Fixtures/content_1.md

@@ -0,0 +1,9 @@
+# Heading 1
+
+Text
+
+## Heading 2
+
+```php
+$code = true;
+```

tests/AppBundle/Twig/AppExtensionTest.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace Tests\AppBundle\Twig;
+
+use AppBundle\Twig\AppExtension;
+use Mni\FrontYAML\Parser;
+
+class AppExtensionTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @dataProvider markdownProvider
+     */
+    public function testMarkdownToHtml($md, $expected)
+    {
+        $parser = new Parser();
+        $appExtension = new AppExtension($parser);
+        $html = $appExtension->markdownToHtml($md);
+        $this->assertEquals($html, $expected);
+    }
+
+    public static function markdownProvider()
+    {
+        return [
+            [file_get_contents(__DIR__.'/../Fixtures/content_1.md'), file_get_contents(__DIR__.'/../Fixtures/content_1.html')]
+        ];
+    }
+}