--- /dev/null
+<?php
+
+namespace Drupal\Tests\system\Functional\Form;
+
+use Drupal\Component\Serialization\Json;
+use Drupal\Core\Language\LanguageInterface;
+use Drupal\language\Entity\ConfigurableLanguage;
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests that the language select form element prints and submits the right
+ * options.
+ *
+ * @group Form
+ */
+class LanguageSelectElementTest extends BrowserTestBase {
+
+ /**
+ * Modules to enable.
+ *
+ * @var array
+ */
+ public static $modules = ['form_test', 'language'];
+
+ /**
+ * Tests that the options printed by the language select element are correct.
+ */
+ public function testLanguageSelectElementOptions() {
+ // Add some languages.
+ ConfigurableLanguage::create([
+ 'id' => 'aaa',
+ 'label' => $this->randomMachineName(),
+ ])->save();
+
+ ConfigurableLanguage::create([
+ 'id' => 'bbb',
+ 'label' => $this->randomMachineName(),
+ ])->save();
+
+ \Drupal::languageManager()->reset();
+
+ $this->drupalGet('form-test/language_select');
+ // Check that the language fields were rendered on the page.
+ $ids = [
+ 'edit-languages-all' => LanguageInterface::STATE_ALL,
+ 'edit-languages-configurable' => LanguageInterface::STATE_CONFIGURABLE,
+ 'edit-languages-locked' => LanguageInterface::STATE_LOCKED,
+ 'edit-languages-config-and-locked' => LanguageInterface::STATE_CONFIGURABLE | LanguageInterface::STATE_LOCKED
+ ];
+ foreach ($ids as $id => $flags) {
+ $this->assertField($id, format_string('The @id field was found on the page.', ['@id' => $id]));
+ $options = [];
+ /* @var $language_manager \Drupal\Core\Language\LanguageManagerInterface */
+ $language_manager = $this->container->get('language_manager');
+ foreach ($language_manager->getLanguages($flags) as $langcode => $language) {
+ $options[$langcode] = $language->isLocked() ? t('- @name -', ['@name' => $language->getName()]) : $language->getName();
+ }
+ $this->_testLanguageSelectElementOptions($id, $options);
+ }
+
+ // Test that the #options were not altered by #languages.
+ $this->assertField('edit-language-custom-options', format_string('The @id field was found on the page.', ['@id' => 'edit-language-custom-options']));
+ $this->_testLanguageSelectElementOptions('edit-language-custom-options', ['opt1' => 'First option', 'opt2' => 'Second option', 'opt3' => 'Third option']);
+ }
+
+ /**
+ * Tests the case when the language select elements should not be printed.
+ *
+ * This happens when the language module is disabled.
+ */
+ public function testHiddenLanguageSelectElement() {
+ // Disable the language module, so that the language select field will not
+ // be rendered.
+ $this->container->get('module_installer')->uninstall(['language']);
+ $this->drupalGet('form-test/language_select');
+ // Check that the language fields were rendered on the page.
+ $ids = ['edit-languages-all', 'edit-languages-configurable', 'edit-languages-locked', 'edit-languages-config-and-locked'];
+ foreach ($ids as $id) {
+ $this->assertNoField($id, format_string('The @id field was not found on the page.', ['@id' => $id]));
+ }
+
+ // Check that the submitted values were the default values of the language
+ // field elements.
+ $edit = [];
+ $this->drupalPostForm(NULL, $edit, t('Submit'));
+ $values = Json::decode($this->getRawContent());
+ $this->assertEqual($values['languages_all'], 'xx');
+ $this->assertEqual($values['languages_configurable'], 'en');
+ $this->assertEqual($values['languages_locked'], LanguageInterface::LANGCODE_NOT_SPECIFIED);
+ $this->assertEqual($values['languages_config_and_locked'], 'dummy_value');
+ $this->assertEqual($values['language_custom_options'], 'opt2');
+ }
+
+ /**
+ * Helper function to check the options of a language select form element.
+ *
+ * @param string $id
+ * The id of the language select element to check.
+ *
+ * @param array $options
+ * An array with options to compare with.
+ */
+ protected function _testLanguageSelectElementOptions($id, $options) {
+ // Check that the options in the language field are exactly the same,
+ // including the order, as the languages sent as a parameter.
+ $elements = $this->xpath("//select[@id='" . $id . "']");
+ $count = 0;
+ /** @var \Behat\Mink\Element\NodeElement $option */
+ foreach ($elements[0]->findAll('css', 'option') as $option) {
+ $count++;
+ $option_title = current($options);
+ $this->assertEqual($option->getText(), $option_title);
+ next($options);
+ }
+ $this->assertEqual($count, count($options), format_string('The number of languages and the number of options shown by the language element are the same: @languages languages, @number options', ['@languages' => count($options), '@number' => $count]));
+ }
+
+}