class ConfigLanguageOverrideTest

class ConfigLanguageOverrideTest extends KernelTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'user',
        'language',
        'config_test',
        'system',
        'field',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->installConfig([
            'config_test',
        ]);
    }
    
    /**
     * Tests locale override based on language.
     */
    public function testConfigLanguageOverride() {
        // The language module implements a config factory override object that
        // overrides configuration when the Language module is enabled. This test ensures that
        // English overrides work.
        \Drupal::languageManager()->setConfigOverrideLanguage(\Drupal::languageManager()->getLanguage('en'));
        $config = \Drupal::config('config_test.system');
        $this->assertSame('en bar', $config->get('foo'));
        // Ensure that the raw data is not translated.
        $raw = $config->getRawData();
        $this->assertSame('bar', $raw['foo']);
        ConfigurableLanguage::createFromLangcode('fr')->save();
        ConfigurableLanguage::createFromLangcode('de')->save();
        \Drupal::languageManager()->setConfigOverrideLanguage(\Drupal::languageManager()->getLanguage('fr'));
        $config = \Drupal::config('config_test.system');
        $this->assertSame('fr bar', $config->get('foo'));
        \Drupal::languageManager()->setConfigOverrideLanguage(\Drupal::languageManager()->getLanguage('de'));
        $config = \Drupal::config('config_test.system');
        $this->assertSame('de bar', $config->get('foo'));
        // Test overrides of completely new configuration objects. In normal runtime
        // this should only happen for configuration entities as we should not be
        // creating simple configuration objects on the fly.
        \Drupal::languageManager()->getLanguageConfigOverride('de', 'config_test.new')
            ->set('language', 'override')
            ->save();
        $config = \Drupal::config('config_test.new');
        $this->assertTrue($config->isNew(), 'The configuration object config_test.new is new');
        $this->assertSame('override', $config->get('language'));
        $this->assertNull($config->getOriginal('language', FALSE));
        // Test how overrides react to base configuration changes. Set up some base
        // values.
        \Drupal::configFactory()->getEditable('config_test.foo')
            ->set('value', [
            'key' => 'original',
        ])
            ->set('label', 'Original')
            ->save();
        \Drupal::languageManager()->getLanguageConfigOverride('de', 'config_test.foo')
            ->set('value', [
            'key' => 'override',
        ])
            ->set('label', 'Override')
            ->save();
        \Drupal::languageManager()->getLanguageConfigOverride('fr', 'config_test.foo')
            ->set('value', [
            'key' => 'override',
        ])
            ->save();
        \Drupal::configFactory()->clearStaticCache();
        $config = \Drupal::config('config_test.foo');
        $this->assertSame([
            'key' => 'override',
        ], $config->get('value'));
        // Ensure renaming the config will rename the override.
        \Drupal::languageManager()->setConfigOverrideLanguage(\Drupal::languageManager()->getLanguage('en'));
        \Drupal::configFactory()->rename('config_test.foo', 'config_test.bar');
        $config = \Drupal::config('config_test.bar');
        $this->assertEquals([
            'key' => 'original',
        ], $config->get('value'));
        $override = \Drupal::languageManager()->getLanguageConfigOverride('de', 'config_test.foo');
        $this->assertTrue($override->isNew());
        $this->assertNull($override->get('value'));
        $override = \Drupal::languageManager()->getLanguageConfigOverride('de', 'config_test.bar');
        $this->assertFalse($override->isNew());
        $this->assertEquals([
            'key' => 'override',
        ], $override->get('value'));
        $override = \Drupal::languageManager()->getLanguageConfigOverride('fr', 'config_test.bar');
        $this->assertFalse($override->isNew());
        $this->assertEquals([
            'key' => 'override',
        ], $override->get('value'));
        // Ensure changing data in the config will update the overrides.
        $config = \Drupal::configFactory()->getEditable('config_test.bar')
            ->clear('value.key')
            ->save();
        $this->assertEquals([], $config->get('value'));
        $override = \Drupal::languageManager()->getLanguageConfigOverride('de', 'config_test.bar');
        $this->assertFalse($override->isNew());
        $this->assertNull($override->get('value'));
        // The French override will become empty and therefore removed.
        $override = \Drupal::languageManager()->getLanguageConfigOverride('fr', 'config_test.bar');
        $this->assertTrue($override->isNew());
        $this->assertNull($override->get('value'));
        // Ensure deleting the config will delete the override.
        \Drupal::configFactory()->getEditable('config_test.bar')
            ->delete();
        $override = \Drupal::languageManager()->getLanguageConfigOverride('de', 'config_test.bar');
        $this->assertTrue($override->isNew());
        $this->assertNull($override->get('value'));
    }

}