createFrontMatterSource example

  public function testFrontMatterData($yaml, $line, $content = self::SOURCE) {
    $source = static::createFrontMatterSource($yaml, $content);
    $frontMatter = FrontMatter::create($source);
    $this->assertEquals($content, $frontMatter->getContent());
    $this->assertEquals($yaml === NULL ? [] : $yaml, $frontMatter->getData());
    $this->assertEquals($line, $frontMatter->getLine());
  }

  /** * Provides the front matter data to test. * * @return array * Array of front matter data. */

  public function testFrontMatter($yaml, $line, $content = ComponentFrontMatterTest::SOURCE) {
    // Create a temporary Twig template.     $source = ComponentFrontMatterTest::createFrontMatterSource($yaml, $content);
    $file = $this->createTwigTemplate($source);
    $name = basename($file);

    // Ensure the proper metadata is returned.     $metadata = $this->twig->getTemplateMetadata($name);
    $this->assertEquals($yaml === NULL ? [] : $yaml, $metadata);

    // Ensure the metadata is never rendered.     $output = $this->twig->load($name)->render();
    $this->assertEquals($content, $output);