class LanguageListTest

class LanguageListTest extends BrowserTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'language',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Functional tests for adding, editing and deleting languages.
     */
    public function testLanguageList() {
        // User to add and remove language.
        $admin_user = $this->drupalCreateUser([
            'administer languages',
            'access administration pages',
        ]);
        $this->drupalLogin($admin_user);
        // Get the weight of the last language.
        $languages = \Drupal::service('language_manager')->getLanguages();
        $last_language_weight = end($languages)->getWeight();
        // Add predefined language.
        $edit = [
            'predefined_langcode' => 'fr',
        ];
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add language');
        $this->assertSession()
            ->pageTextContains('French');
        $this->assertSession()
            ->addressEquals(Url::fromRoute('entity.configurable_language.collection'));
        // Get the weight of the last language and check that the weight is one unit
        // heavier than the last configurable language.
        $this->rebuildContainer();
        $languages = \Drupal::service('language_manager')->getLanguages();
        $last_language = end($languages);
        $this->assertEquals($last_language_weight + 1, $last_language->getWeight());
        $this->assertEquals($edit['predefined_langcode'], $last_language->getId());
        // Add custom language.
        $langcode = 'xx';
        $name = $this->randomMachineName(16);
        $edit = [
            'predefined_langcode' => 'custom',
            'langcode' => $langcode,
            'label' => $name,
            'direction' => Language::DIRECTION_LTR,
        ];
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add custom language');
        $this->assertSession()
            ->addressEquals(Url::fromRoute('entity.configurable_language.collection'));
        $this->assertSession()
            ->responseContains('"edit-languages-' . $langcode . '-weight"');
        $this->assertSession()
            ->pageTextContains($name);
        $language = \Drupal::service('language_manager')->getLanguage($langcode);
        $english = \Drupal::service('language_manager')->getLanguage('en');
        // Check if we can change the default language.
        $path = 'admin/config/regional/language';
        $this->drupalGet($path);
        $this->assertSession()
            ->checkboxChecked('edit-site-default-language-en');
        // Change the default language.
        $edit = [
            'site_default_language' => $langcode,
        ];
        $this->submitForm($edit, 'Save configuration');
        $this->rebuildContainer();
        $this->assertSession()
            ->checkboxNotChecked('edit-site-default-language-en');
        $this->assertSession()
            ->addressEquals(Url::fromRoute('entity.configurable_language.collection', [], [
            'language' => $language,
        ]));
        // Ensure we can't delete the default language.
        $this->drupalGet('admin/config/regional/language/delete/' . $langcode);
        $this->assertSession()
            ->statusCodeEquals(403);
        // Ensure 'Edit' link works.
        $this->drupalGet('admin/config/regional/language');
        $this->clickLink('Edit');
        $this->assertSession()
            ->titleEquals('Edit language | Drupal');
        // Edit a language.
        $name = $this->randomMachineName(16);
        $edit = [
            'label' => $name,
        ];
        $this->drupalGet('admin/config/regional/language/edit/' . $langcode);
        $this->submitForm($edit, 'Save language');
        $this->assertSession()
            ->pageTextContains($name);
        $this->assertSession()
            ->addressEquals(Url::fromRoute('entity.configurable_language.collection', [], [
            'language' => $language,
        ]));
        // Change back the default language.
        $edit = [
            'site_default_language' => 'en',
        ];
        $this->drupalGet($path);
        $this->submitForm($edit, 'Save configuration');
        $this->rebuildContainer();
        // Ensure 'delete' link works.
        $this->drupalGet('admin/config/regional/language');
        $this->clickLink('Delete');
        $this->assertSession()
            ->pageTextContains('Are you sure you want to delete the language');
        // Delete a language.
        $this->drupalGet('admin/config/regional/language/delete/' . $langcode);
        // First test the 'cancel' link.
        $this->clickLink('Cancel');
        $this->assertSession()
            ->addressEquals(Url::fromRoute('entity.configurable_language.collection', [], [
            'language' => $english,
        ]));
        $this->assertSession()
            ->pageTextContains($name);
        // Delete the language for real. This a confirm form, we do not need any
        // fields changed.
        $this->drupalGet('admin/config/regional/language/delete/' . $langcode);
        $this->submitForm([], 'Delete');
        $this->assertSession()
            ->statusMessageContains("The {$name} ({$langcode}) language has been removed.", 'status');
        $this->assertSession()
            ->addressEquals(Url::fromRoute('entity.configurable_language.collection', [], [
            'language' => $english,
        ]));
        // Verify that language is no longer found.
        $this->drupalGet('admin/config/regional/language/delete/' . $langcode);
        $this->assertSession()
            ->statusCodeEquals(404);
        // Delete French.
        $this->drupalGet('admin/config/regional/language/delete/fr');
        $this->submitForm([], 'Delete');
        // Make sure the "language_count" state has been updated correctly.
        $this->rebuildContainer();
        $this->assertSession()
            ->statusMessageContains('The French (fr) language has been removed.', 'status');
        $this->assertSession()
            ->addressEquals(Url::fromRoute('entity.configurable_language.collection'));
        // Verify that language is no longer found.
        $this->drupalGet('admin/config/regional/language/delete/fr');
        $this->assertSession()
            ->statusCodeEquals(404);
        // Make sure the "language_count" state has not changed.
        // Ensure we can delete the English language. Right now English is the only
        // language so we must add a new language and make it the default before
        // deleting English.
        $langcode = 'xx';
        $name = $this->randomMachineName(16);
        $edit = [
            'predefined_langcode' => 'custom',
            'langcode' => $langcode,
            'label' => $name,
            'direction' => Language::DIRECTION_LTR,
        ];
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add custom language');
        $this->assertSession()
            ->addressEquals(Url::fromRoute('entity.configurable_language.collection'));
        $this->assertSession()
            ->pageTextContains($name);
        // Check if we can change the default language.
        $path = 'admin/config/regional/language';
        $this->drupalGet($path);
        $this->assertSession()
            ->checkboxChecked('edit-site-default-language-en');
        // Change the default language.
        $edit = [
            'site_default_language' => $langcode,
        ];
        $this->submitForm($edit, 'Save configuration');
        $this->rebuildContainer();
        $this->assertSession()
            ->checkboxNotChecked('edit-site-default-language-en');
        $this->assertSession()
            ->addressEquals(Url::fromRoute('entity.configurable_language.collection', [], [
            'language' => $language,
        ]));
        $this->drupalGet('admin/config/regional/language/delete/en');
        $this->submitForm([], 'Delete');
        $this->assertSession()
            ->statusMessageContains('The English (en) language has been removed.', 'status');
        $this->rebuildContainer();
        // Ensure we can't delete a locked language.
        $this->drupalGet('admin/config/regional/language/delete/und');
        $this->assertSession()
            ->statusCodeEquals(403);
        // Ensure that NL cannot be set default when it's not available.
        // First create the NL language.
        $edit = [
            'predefined_langcode' => 'nl',
        ];
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add language');
        // Load the form which has now the additional NL language option.
        $this->drupalGet('admin/config/regional/language');
        // Delete the NL language in the background.
        $language_storage = $this->container
            ->get('entity_type.manager')
            ->getStorage('configurable_language');
        $language_storage->load('nl')
            ->delete();
        $this->submitForm([
            'site_default_language' => 'nl',
        ], 'Save configuration');
        $this->assertSession()
            ->statusMessageContains('Selected default language no longer exists.', 'error');
        $this->assertSession()
            ->checkboxNotChecked('edit-site-default-language-xx');
    }
    
    /**
     * Functional tests for the language states (locked or configurable).
     */
    public function testLanguageStates() {
        // Add some languages, and also lock some of them.
        ConfigurableLanguage::create([
            'label' => $this->randomMachineName(),
            'id' => 'l1',
        ])
            ->save();
        ConfigurableLanguage::create([
            'label' => $this->randomMachineName(),
            'id' => 'l2',
            'locked' => TRUE,
        ])
            ->save();
        ConfigurableLanguage::create([
            'label' => $this->randomMachineName(),
            'id' => 'l3',
        ])
            ->save();
        ConfigurableLanguage::create([
            'label' => $this->randomMachineName(),
            'id' => 'l4',
            'locked' => TRUE,
        ])
            ->save();
        $expected_locked_languages = [
            'l4' => 'l4',
            'l2' => 'l2',
            'und' => 'und',
            'zxx' => 'zxx',
        ];
        $expected_all_languages = [
            'l4' => 'l4',
            'l3' => 'l3',
            'l2' => 'l2',
            'l1' => 'l1',
            'en' => 'en',
            'und' => 'und',
            'zxx' => 'zxx',
        ];
        $expected_conf_languages = [
            'l3' => 'l3',
            'l1' => 'l1',
            'en' => 'en',
        ];
        $locked_languages = $this->container
            ->get('language_manager')
            ->getLanguages(LanguageInterface::STATE_LOCKED);
        $this->assertEquals([], array_diff_key($expected_locked_languages, $locked_languages), 'Locked languages loaded correctly.');
        $all_languages = $this->container
            ->get('language_manager')
            ->getLanguages(LanguageInterface::STATE_ALL);
        $this->assertEquals([], array_diff_key($expected_all_languages, $all_languages), 'All languages loaded correctly.');
        $conf_languages = $this->container
            ->get('language_manager')
            ->getLanguages();
        $this->assertEquals([], array_diff_key($expected_conf_languages, $conf_languages), 'Configurable languages loaded correctly.');
    }

}