<?php

class LessUnitTest extends DrupalUnitTestCase {

  /**
   * {@inheritdoc}
   */
  public static function getInfo() {
    return array(
      'name' => 'Less Unit Tests',
      'description' => 'Tests functions that only act on input and do not require a DB.',
      'group' => 'Less',
    );
  }

  public function setUp() {

    module_load_include('module', 'less');
    module_load_include('inc', 'less', 'includes/less.process');

    parent::setUp();
  }

  /**
   * Test the _less_output_path() function.
   *
   * @see _less_output_path()
   */
  public function test_less_output_path() {

    $less_item = array(
      'less' => array(
        'build_cache_id' => 'Zxz5NVNO0Ad9miD2JeGw1B_3auVKtmJJ7ksCdxaeZ0A',
        'variables' => array(
          '@gradient_end' => 'darken(@gradient_start, 10%);',
          '@gradient_start' => '#0779bf;',
          '@text_glow' => 'blue',
          '@test' => 'green',
          '@header_from' => 'test',
        ),
        'functions' => array(
          'token' => '_less_token_replace',
          'swap' => '_less_demo_reverse',
        ),
        'paths' => array(
          0 => 'sites/all/modules/custom/less/less_demo/libs',
        ),
        'less_autoprefixer' => TRUE,
        'less_devel' => FALSE,
        'less_source_maps' => FALSE,
        'theme' => 'seven',
        'output_file' => NULL,
        'build_required' => NULL,
        'input_file' => 'sites/all/modules/custom/less/less_demo/styles/less_demo.info.css.less',
      ),
    );

    _less_output_path($less_item, NULL);

    $expected_output_file = 'public://less/less_demo.info.aIR_TiwEIzIVLaH9dWKmPfbShza_NoIVp_TPs0tPvaM.css';

    $this->assertIdentical($less_item['less']['output_file'], $expected_output_file, 'Output file location processes correctly.');
  }

  /**
   * Test the _less_rewrite_paths() function.
   *
   * @see _less_rewrite_paths()
   */
  public function test_less_rewrite_paths() {

    $input_file_path = 'sites/all/modules/custom/less/less_demo/styles/less_demo.info.css.less';

    $less_compiled_css = <<<'EOD'
#less_demo_gradient .less_demo_logo {
  background: transparent url(../images/logo.png) center center no-repeat;
}
EOD;

    $expected_rewritten_output_data = <<<EOD
#less_demo_gradient .less_demo_logo {
  background: transparent url({$GLOBALS['base_path']}sites/all/modules/custom/less/less_demo/images/logo.png) center center no-repeat;
}
EOD;

    $actual_rewritten_output_data = _less_rewrite_paths($input_file_path, $less_compiled_css);

    $this->assertIdentical($actual_rewritten_output_data, $expected_rewritten_output_data, 'Rewritten paths are correct.');
  }
}