Mustache/test/Mustache/Test/Functional/MustacheSpecTest.php

<?php

/*
 * This file is part of Mustache.php.
 *
 * (c) 2013 Justin Hileman
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * A PHPUnit test case wrapping the Mustache Spec
 *
 * @group mustache-spec
 * @group functional
 */
class Mustache_Test_Functional_MustacheSpecTest extends PHPUnit_Framework_TestCase
{

    private static $mustache;

    public static function setUpBeforeClass()
    {
        self::$mustache = new Mustache_Engine;
    }

    /**
     * For some reason data providers can't mark tests skipped, so this test exists
     * simply to provide a 'skipped' test if the `spec` submodule isn't initialized.
     */
    public function testSpecInitialized()
    {
        if (!file_exists(dirname(__FILE__).'/../../../../vendor/spec/specs/')) {
            $this->markTestSkipped('Mustache spec submodule not initialized: run "git submodule update --init"');
        }
    }

    /**
     * @group comments
     * @dataProvider loadCommentSpec
     */
    public function testCommentSpec($desc, $source, $partials, $data, $expected)
    {
        $template = self::loadTemplate($source, $partials);
        $this->assertEquals($expected, $template->render($data), $desc);
    }

    public function loadCommentSpec()
    {
        return $this->loadSpec('comments');
    }

    /**
     * @group delimiters
     * @dataProvider loadDelimitersSpec
     */
    public function testDelimitersSpec($desc, $source, $partials, $data, $expected)
    {
        $template = self::loadTemplate($source, $partials);
        $this->assertEquals($expected, $template->render($data), $desc);
    }

    public function loadDelimitersSpec()
    {
        return $this->loadSpec('delimiters');
    }

    /**
     * @group interpolation
     * @dataProvider loadInterpolationSpec
     */
    public function testInterpolationSpec($desc, $source, $partials, $data, $expected)
    {
        $template = self::loadTemplate($source, $partials);
        $this->assertEquals($expected, $template->render($data), $desc);
    }

    public function loadInterpolationSpec()
    {
        return $this->loadSpec('interpolation');
    }

    /**
     * @group inverted
     * @group inverted-sections
     * @dataProvider loadInvertedSpec
     */
    public function testInvertedSpec($desc, $source, $partials, $data, $expected)
    {
        $template = self::loadTemplate($source, $partials);
        $this->assertEquals($expected, $template->render($data), $desc);
    }

    public function loadInvertedSpec()
    {
        return $this->loadSpec('inverted');
    }

    /**
     * @group partials
     * @dataProvider loadPartialsSpec
     */
    public function testPartialsSpec($desc, $source, $partials, $data, $expected)
    {
        $template = self::loadTemplate($source, $partials);
        $this->assertEquals($expected, $template->render($data), $desc);
    }

    public function loadPartialsSpec()
    {
        return $this->loadSpec('partials');
    }

    /**
     * @group sections
     * @dataProvider loadSectionsSpec
     */
    public function testSectionsSpec($desc, $source, $partials, $data, $expected)
    {
        $template = self::loadTemplate($source, $partials);
        $this->assertEquals($expected, $template->render($data), $desc);
    }

    public function loadSectionsSpec()
    {
        return $this->loadSpec('sections');
    }

    /**
     * Data provider for the mustache spec test.
     *
     * Loads YAML files from the spec and converts them to PHPisms.
     *
     * @access public
     * @return array
     */
    private function loadSpec($name)
    {
        $filename = dirname(__FILE__) . '/../../../../vendor/spec/specs/' . $name . '.yml';
        if (!file_exists($filename)) {
            return array();
        }

        $data = array();
        $yaml = new sfYamlParser;
        $file = file_get_contents($filename);

        // @hack: pre-process the 'lambdas' spec so the Symfony YAML parser doesn't complain.
        if ($name === '~lambdas') {
            $file = str_replace(" !code\n", "\n", $file);
        }

        $spec = $yaml->parse($file);

        foreach ($spec['tests'] as $test) {
            $data[] = array(
                $test['name'] . ': ' . $test['desc'],
                $test['template'],
                isset($test['partials']) ? $test['partials'] : array(),
                $test['data'],
                $test['expected'],
            );
        }

        return $data;
    }

    private static function loadTemplate($source, $partials)
    {
        self::$mustache->setPartials($partials);

        return self::$mustache->loadTemplate($source);
    }
}