CssCollectionOptimizerLazyUnitTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\Core\Asset;

use Drupal\Component\Datetime\TimeInterface;
use Drupal\Core\Asset\AssetCollectionGrouperInterface;
use Drupal\Core\Asset\AssetOptimizerInterface;
use Drupal\Core\Asset\LibraryDependencyResolverInterface;
use Drupal\Core\Asset\CssCollectionOptimizerLazy;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\File\FileUrlGeneratorInterface;
use Drupal\Core\File\FileSystemInterface;
use Drupal\Core\Language\LanguageManagerInterface;
use Drupal\Core\Theme\ThemeManagerInterface;
use Drupal\Tests\UnitTestCase;
use Symfony\Component\HttpFoundation\RequestStack;

/**
 * Tests the CSS asset optimizer.
 *
 * @group Asset
 */
class CssCollectionOptimizerLazyUnitTest extends UnitTestCase {
    
    /**
     * Tests that CSS imports with strange letters do not destroy the CSS output.
     */
    public function testCssImport() : void {
        $mock_grouper = $this->createMock(AssetCollectionGrouperInterface::class);
        $mock_grouper->method('group')
            ->willReturnCallback(function ($assets) {
            return [
                [
                    'items' => $assets,
                    'type' => 'file',
                    'preprocess' => TRUE,
                ],
            ];
        });
        $mock_optimizer = $this->createMock(AssetOptimizerInterface::class);
        $mock_optimizer->method('optimize')
            ->willReturn(file_get_contents(__DIR__ . '/css_test_files/css_input_with_import.css.optimized.css'), file_get_contents(__DIR__ . '/css_test_files/css_subfolder/css_input_with_import.css.optimized.css'));
        $mock_theme_manager = $this->createMock(ThemeManagerInterface::class);
        $mock_dependency_resolver = $this->createMock(LibraryDependencyResolverInterface::class);
        $mock_file_system = $this->createMock(FileSystemInterface::class);
        $mock_config_factory = $this->createMock(ConfigFactoryInterface::class);
        $mock_file_url_generator = $this->createMock(FileUrlGeneratorInterface::class);
        $mock_time = $this->createMock(TimeInterface::class);
        $mock_language = $this->createMock(LanguageManagerInterface::class);
        $optimizer = new CssCollectionOptimizerLazy($mock_grouper, $mock_optimizer, $mock_theme_manager, $mock_dependency_resolver, new RequestStack(), $mock_file_system, $mock_config_factory, $mock_file_url_generator, $mock_time, $mock_language);
        $gpl_license = [
            'name' => 'GPL-2.0-or-later',
            'url' => 'https://www.drupal.org/licensing/faq',
            'gpl-compatible' => TRUE,
        ];
        $aggregate = $optimizer->optimizeGroup([
            'items' => [
                'core/modules/system/tests/modules/common_test/common_test_css_import.css' => [
                    'type' => 'file',
                    'data' => 'core/modules/system/tests/modules/common_test/common_test_css_import.css',
                    'preprocess' => TRUE,
                    'license' => $gpl_license,
                ],
                'core/modules/system/tests/modules/common_test/common_test_css_import_not_preprocessed.css' => [
                    'type' => 'file',
                    'data' => 'core/modules/system/tests/modules/common_test/common_test_css_import.css',
                    'preprocess' => TRUE,
                    'license' => $gpl_license,
                ],
            ],
        ]);
        self::assertStringEqualsFile(__DIR__ . '/css_test_files/css_input_with_import.css.optimized.aggregated.css', $aggregate);
    }
    
    /**
     * Test that license information is added correctly to aggregated CSS.
     *
     * Checks that license information is added only once when several files
     * have the same license. Checks that multiple licenses are added properly.
     */
    public function testCssLicenseAggregation() : void {
        $mock_grouper = $this->createMock(AssetCollectionGrouperInterface::class);
        $mock_grouper->method('group')
            ->willReturnCallback(function ($assets) {
            return [
                [
                    'items' => $assets,
                    'type' => 'file',
                    'preprocess' => TRUE,
                ],
            ];
        });
        $mock_optimizer = $this->createMock(AssetOptimizerInterface::class);
        $mock_optimizer->method('optimize')
            ->willReturn(file_get_contents(__DIR__ . '/css_test_files/css_input_with_import.css.optimized.css'), file_get_contents(__DIR__ . '/css_test_files/css_subfolder/css_input_with_import.css.optimized.css'), file_get_contents(__DIR__ . '/css_test_files/css_input_without_import.css.optimized.css'));
        $mock_theme_manager = $this->createMock(ThemeManagerInterface::class);
        $mock_dependency_resolver = $this->createMock(LibraryDependencyResolverInterface::class);
        $mock_file_system = $this->createMock(FileSystemInterface::class);
        $mock_config_factory = $this->createMock(ConfigFactoryInterface::class);
        $mock_file_url_generator = $this->createMock(FileUrlGeneratorInterface::class);
        $mock_time = $this->createMock(TimeInterface::class);
        $mock_language = $this->createMock(LanguageManagerInterface::class);
        $optimizer = new CssCollectionOptimizerLazy($mock_grouper, $mock_optimizer, $mock_theme_manager, $mock_dependency_resolver, new RequestStack(), $mock_file_system, $mock_config_factory, $mock_file_url_generator, $mock_time, $mock_language);
        $gpl_license = [
            'name' => 'GPL-2.0-or-later',
            'url' => 'https://www.drupal.org/licensing/faq',
            'gpl-compatible' => TRUE,
        ];
        $aggregate = $optimizer->optimizeGroup([
            'items' => [
                'core/modules/system/tests/modules/common_test/common_test_css_import.css' => [
                    'type' => 'file',
                    'data' => 'core/modules/system/tests/modules/common_test/common_test_css_import.css',
                    'preprocess' => TRUE,
                    'license' => $gpl_license,
                ],
                'core/modules/system/tests/modules/common_test/common_test_css_import_not_preprocessed.css' => [
                    'type' => 'file',
                    'data' => 'core/modules/system/tests/modules/common_test/common_test_css_import.css',
                    'preprocess' => TRUE,
                    'license' => $gpl_license,
                ],
                'core/modules/system/tests/modules/common_test/css_input_without_import.css' => [
                    'type' => 'file',
                    'data' => 'core/modules/system/tests/modules/common_test/css_input_without_import.css',
                    'preprocess' => TRUE,
                    'license' => [
                        'name' => 'MIT',
                        'url' => 'https://opensource.org/licenses/MIT',
                        'gpl-compatible' => TRUE,
                    ],
                ],
            ],
        ]);
        self::assertStringEqualsFile(__DIR__ . '/css_test_files/css_license.css.optimized.aggregated.css', $aggregate);
    }

}