ColorLegacyTest.php

<?php

namespace Drupal\Tests\color\Kernel;

use Drupal\KernelTests\KernelTestBase;

/**
 * Tests Color module's legacy code.
 *
 * @group color
 * @group legacy
 */
class ColorLegacyTest extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'system',
        'color',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        $this->container
            ->get('theme_installer')
            ->install([
            'bartik',
        ]);
        $this->config('system.theme')
            ->set('default', 'bartik')
            ->save();
    }
    
    /**
     * Tests color_block_view_pre_render() deprecation.
     *
     * @expectedDeprecation color_block_view_pre_render() is deprecated in Drupal 8.8.0 and will be removed before Drupal 9.0.0. Use \Drupal\color\ColorSystemBrandingBlockAlter::preRender() instead. See https://www.drupal.org/node/2966725
     */
    public function testColorSystemBrandingBlockAlterPreRender() {
        $render = color_block_view_pre_render([]);
        $this->assertEquals([
            'config:color.theme.bartik',
        ], $render['#cache']['tags']);
    }

}