class TranslationTestCase

class TranslationTestCase extends DrupalWebTestCase {
    protected $book;
    protected $admin_user;
    protected $translator;
    public static function getInfo() {
        return array(
            'name' => 'Translation functionality',
            'description' => 'Create a basic page with translation, modify the page outdating translation, and update translation.',
            'group' => 'Translation',
        );
    }
    function setUp() {
        parent::setUp('locale', 'translation', 'translation_test');
        // Setup users.
        $this->admin_user = $this->drupalCreateUser(array(
            'bypass node access',
            'administer nodes',
            'administer languages',
            'administer content types',
            'administer blocks',
            'access administration pages',
            'translate content',
        ));
        $this->translator = $this->drupalCreateUser(array(
            'create page content',
            'edit own page content',
            'translate content',
        ));
        $this->drupalLogin($this->admin_user);
        // Add languages.
        $this->addLanguage('en');
        $this->addLanguage('es');
        $this->addLanguage('it');
        // Disable Italian to test the translation behavior with disabled languages.
        $edit = array(
            'enabled[it]' => FALSE,
        );
        $this->drupalPost('admin/config/regional/language', $edit, t('Save configuration'));
        // Set "Basic page" content type to use multilingual support with
        // translation.
        $this->drupalGet('admin/structure/types/manage/page');
        $edit = array();
        $edit['language_content_type'] = 2;
        $this->drupalPost('admin/structure/types/manage/page', $edit, t('Save content type'));
        $this->assertRaw(t('The content type %type has been updated.', array(
            '%type' => 'Basic page',
        )), 'Basic page content type has been updated.');
        // Enable the language switcher block.
        $language_type = LANGUAGE_TYPE_INTERFACE;
        $edit = array(
            "blocks[locale_{$language_type}][region]" => 'sidebar_first',
        );
        $this->drupalPost('admin/structure/block', $edit, t('Save blocks'));
        // Enable URL language detection and selection to make the language switcher
        // block appear.
        $edit = array(
            'language[enabled][locale-url]' => TRUE,
        );
        $this->drupalPost('admin/config/regional/language/configure', $edit, t('Save settings'));
        $this->assertRaw(t('Language negotiation configuration saved.'), 'URL language detection enabled.');
        $this->resetCaches();
        $this->drupalLogin($this->translator);
    }
    
    /**
     * Creates, modifies, and updates a basic page with a translation.
     */
    function testContentTranslation() {
        // Create Basic page in English.
        $node_title = $this->randomName();
        $node_body = $this->randomName();
        $node = $this->createPage($node_title, $node_body, 'en');
        // Unpublish the original node to check that this has no impact on the
        // translation overview page, publish it again afterwards.
        $this->drupalLogin($this->admin_user);
        $this->drupalPost('node/' . $node->nid . '/edit', array(
            'status' => FALSE,
        ), t('Save'));
        $this->drupalGet('node/' . $node->nid . '/translate');
        $this->drupalPost('node/' . $node->nid . '/edit', array(
            'status' => NODE_PUBLISHED,
        ), t('Save'));
        $this->drupalLogin($this->translator);
        // Check that the "add translation" link uses a localized path.
        $languages = language_list();
        $this->drupalGet('node/' . $node->nid . '/translate');
        $this->assertLinkByHref($languages['es']->prefix . '/node/add/' . str_replace('_', '-', $node->type), 0, format_string('The "add translation" link for %language points to the localized path of the target language.', array(
            '%language' => $languages['es']->name,
        )));
        // Submit translation in Spanish.
        $node_translation_title = $this->randomName();
        $node_translation_body = $this->randomName();
        $node_translation = $this->createTranslation($node, $node_translation_title, $node_translation_body, 'es');
        // Check that the "edit translation" and "view node" links use localized
        // paths.
        $this->drupalGet('node/' . $node->nid . '/translate');
        $this->assertLinkByHref($languages['es']->prefix . '/node/' . $node_translation->nid . '/edit', 0, format_string('The "edit" link for the translation in %language points to the localized path of the translation language.', array(
            '%language' => $languages['es']->name,
        )));
        $this->assertLinkByHref($languages['es']->prefix . '/node/' . $node_translation->nid, 0, format_string('The "view" link for the translation in %language points to the localized path of the translation language.', array(
            '%language' => $languages['es']->name,
        )));
        // Attempt to submit a duplicate translation by visiting the node/add page
        // with identical query string.
        $this->drupalGet('node/add/page', array(
            'query' => array(
                'translation' => $node->nid,
                'target' => 'es',
            ),
        ));
        $this->assertRaw(t('A translation of %title in %language already exists', array(
            '%title' => $node_title,
            '%language' => $languages['es']->name,
        )), 'Message regarding attempted duplicate translation is displayed.');
        // Attempt a resubmission of the form - this emulates using the back button
        // to return to the page then resubmitting the form without a refresh.
        $edit = array();
        $langcode = LANGUAGE_NONE;
        $edit["title"] = $this->randomName();
        $edit["body[{$langcode}][0][value]"] = $this->randomName();
        $this->drupalPost('node/add/page', $edit, t('Save'), array(
            'query' => array(
                'translation' => $node->nid,
                'language' => 'es',
            ),
        ));
        $duplicate = $this->drupalGetNodeByTitle($edit["title"]);
        $this->assertEqual($duplicate->tnid, 0, 'The node does not have a tnid.');
        // Update original and mark translation as outdated.
        $node_body = $this->randomName();
        $node->body[LANGUAGE_NONE][0]['value'] = $node_body;
        $edit = array();
        $edit["body[{$langcode}][0][value]"] = $node_body;
        $edit['translation[retranslate]'] = TRUE;
        $this->drupalPost('node/' . $node->nid . '/edit', $edit, t('Save'));
        $this->assertRaw(t('Basic page %title has been updated.', array(
            '%title' => $node_title,
        )), 'Original node updated.');
        // Check to make sure that interface shows translation as outdated.
        $this->drupalGet('node/' . $node->nid . '/translate');
        $this->assertRaw('<span class="marker">' . t('outdated') . '</span>', 'Translation marked as outdated.');
        // Update translation and mark as updated.
        $edit = array();
        $edit["body[{$langcode}][0][value]"] = $this->randomName();
        $edit['translation[status]'] = FALSE;
        $this->drupalPost('node/' . $node_translation->nid . '/edit', $edit, t('Save'));
        $this->assertRaw(t('Basic page %title has been updated.', array(
            '%title' => $node_translation_title,
        )), 'Translated node updated.');
        // Confirm that disabled languages are an option for translators when
        // creating nodes.
        $this->drupalGet('node/add/page');
        $this->assertFieldByXPath('//select[@name="language"]//option', 'it', 'Italian (disabled) is available in language selection.');
        $translation_it = $this->createTranslation($node, $this->randomName(), $this->randomName(), 'it');
        $this->assertRaw($translation_it->body[LANGUAGE_NONE][0]['value'], 'Content created in Italian (disabled).');
        // Confirm that language neutral is an option for translators when there are
        // disabled languages.
        $this->drupalGet('node/add/page');
        $this->assertFieldByXPath('//select[@name="language"]//option', LANGUAGE_NONE, 'Language neutral is available in language selection with disabled languages.');
        $node2 = $this->createPage($this->randomName(), $this->randomName(), LANGUAGE_NONE);
        $this->assertRaw($node2->body[LANGUAGE_NONE][0]['value'], 'Language neutral content created with disabled languages available.');
        // Leave just one language enabled and check that the translation overview
        // page is still accessible.
        $this->drupalLogin($this->admin_user);
        $edit = array(
            'enabled[es]' => FALSE,
        );
        $this->drupalPost('admin/config/regional/language', $edit, t('Save configuration'));
        $this->drupalLogin($this->translator);
        $this->drupalGet('node/' . $node->nid . '/translate');
        $this->assertRaw(t('Translations of %title', array(
            '%title' => $node->title,
        )), 'Translation overview page available with only one language enabled.');
    }
    
    /**
     * Checks that the language switch links behave properly.
     */
    function testLanguageSwitchLinks() {
        // Create a Basic page in English and its translations in Spanish and
        // Italian.
        $node = $this->createPage($this->randomName(), $this->randomName(), 'en');
        $translation_es = $this->createTranslation($node, $this->randomName(), $this->randomName(), 'es');
        $translation_it = $this->createTranslation($node, $this->randomName(), $this->randomName(), 'it');
        // Check that language switch links are correctly shown only for enabled
        // languages.
        $this->assertLanguageSwitchLinks($node, $translation_es);
        $this->assertLanguageSwitchLinks($translation_es, $node);
        $this->assertLanguageSwitchLinks($node, $translation_it, FALSE);
        // Check that links to the displayed translation appear only in the language
        // switcher block.
        $this->assertLanguageSwitchLinks($node, $node, FALSE, 'node');
        $this->assertLanguageSwitchLinks($node, $node, TRUE, 'block-locale');
        // Unpublish the Spanish translation to check that the related language
        // switch link is not shown.
        $this->drupalLogin($this->admin_user);
        $edit = array(
            'status' => FALSE,
        );
        $this->drupalPost("node/{$translation_es->nid}/edit", $edit, t('Save'));
        $this->drupalLogin($this->translator);
        $this->assertLanguageSwitchLinks($node, $translation_es, FALSE);
        // Check that content translation links are shown even when no language
        // negotiation is configured.
        $this->drupalLogin($this->admin_user);
        $edit = array(
            'language[enabled][locale-url]' => FALSE,
        );
        $this->drupalPost('admin/config/regional/language/configure', $edit, t('Save settings'));
        $this->resetCaches();
        $edit = array(
            'status' => TRUE,
        );
        $this->drupalPost("node/{$translation_es->nid}/edit", $edit, t('Save'));
        $this->drupalLogin($this->translator);
        $this->assertLanguageSwitchLinks($node, $translation_es, TRUE, 'node');
    }
    
    /**
     * Tests that the language switcher block alterations work as intended.
     */
    function testLanguageSwitcherBlockIntegration() {
        // Enable Italian to have three items in the language switcher block.
        $this->drupalLogin($this->admin_user);
        $edit = array(
            'enabled[it]' => TRUE,
        );
        $this->drupalPost('admin/config/regional/language', $edit, t('Save configuration'));
        $this->drupalLogin($this->translator);
        // Create a Basic page in English.
        $type = 'block-locale';
        $node = $this->createPage($this->randomName(), $this->randomName(), 'en');
        $this->assertLanguageSwitchLinks($node, $node, TRUE, $type);
        $this->assertLanguageSwitchLinks($node, $this->emptyNode('es'), TRUE, $type);
        $this->assertLanguageSwitchLinks($node, $this->emptyNode('it'), TRUE, $type);
        // Create the Spanish translation.
        $translation_es = $this->createTranslation($node, $this->randomName(), $this->randomName(), 'es');
        $this->assertLanguageSwitchLinks($node, $node, TRUE, $type);
        $this->assertLanguageSwitchLinks($node, $translation_es, TRUE, $type);
        $this->assertLanguageSwitchLinks($node, $this->emptyNode('it'), TRUE, $type);
        // Create the Italian translation.
        $translation_it = $this->createTranslation($node, $this->randomName(), $this->randomName(), 'it');
        $this->assertLanguageSwitchLinks($node, $node, TRUE, $type);
        $this->assertLanguageSwitchLinks($node, $translation_es, TRUE, $type);
        $this->assertLanguageSwitchLinks($node, $translation_it, TRUE, $type);
        // Create a language neutral node and check that the language switcher is
        // left untouched.
        $node2 = $this->createPage($this->randomName(), $this->randomName(), LANGUAGE_NONE);
        $node2_en = (object) array(
            'nid' => $node2->nid,
            'language' => 'en',
        );
        $node2_es = (object) array(
            'nid' => $node2->nid,
            'language' => 'es',
        );
        $node2_it = (object) array(
            'nid' => $node2->nid,
            'language' => 'it',
        );
        $this->assertLanguageSwitchLinks($node2_en, $node2_en, TRUE, $type);
        $this->assertLanguageSwitchLinks($node2_en, $node2_es, TRUE, $type);
        $this->assertLanguageSwitchLinks($node2_en, $node2_it, TRUE, $type);
        // Disable translation support to check that the language switcher is left
        // untouched only for new nodes.
        $this->drupalLogin($this->admin_user);
        $edit = array(
            'language_content_type' => 0,
        );
        $this->drupalPost('admin/structure/types/manage/page', $edit, t('Save content type'));
        $this->drupalLogin($this->translator);
        // Existing translations trigger alterations even if translation support is
        // disabled.
        $this->assertLanguageSwitchLinks($node, $node, TRUE, $type);
        $this->assertLanguageSwitchLinks($node, $translation_es, TRUE, $type);
        $this->assertLanguageSwitchLinks($node, $translation_it, TRUE, $type);
        // Check that new nodes with a language assigned do not trigger language
        // switcher alterations when translation support is disabled.
        $node = $this->createPage($this->randomName(), $this->randomName());
        $node_es = (object) array(
            'nid' => $node->nid,
            'language' => 'es',
        );
        $node_it = (object) array(
            'nid' => $node->nid,
            'language' => 'it',
        );
        $this->assertLanguageSwitchLinks($node, $node, TRUE, $type);
        $this->assertLanguageSwitchLinks($node, $node_es, TRUE, $type);
        $this->assertLanguageSwitchLinks($node, $node_it, TRUE, $type);
    }
    
    /**
     * Resets static caches to make the test code match the client-side behavior.
     */
    function resetCaches() {
        drupal_static_reset('locale_url_outbound_alter');
    }
    
    /**
     * Returns an empty node data structure.
     *
     * @param $langcode
     *   The language code.
     *
     * @return
     *   An empty node data structure.
     */
    function emptyNode($langcode) {
        return (object) array(
            'nid' => NULL,
            'language' => $langcode,
        );
    }
    
    /**
     * Installs the specified language, or enables it if it is already installed.
     *
     * @param $language_code
     *   The language code to check.
     */
    function addLanguage($language_code) {
        // Check to make sure that language has not already been installed.
        $this->drupalGet('admin/config/regional/language');
        if (strpos($this->drupalGetContent(), 'enabled[' . $language_code . ']') === FALSE) {
            // Doesn't have language installed so add it.
            $edit = array();
            $edit['langcode'] = $language_code;
            $this->drupalPost('admin/config/regional/language/add', $edit, t('Add language'));
            // Make sure we are not using a stale list.
            drupal_static_reset('language_list');
            $languages = language_list('language');
            $this->assertTrue(array_key_exists($language_code, $languages), 'Language was installed successfully.');
            if (array_key_exists($language_code, $languages)) {
                $this->assertRaw(t('The language %language has been created and can now be used. More information is available on the <a href="@locale-help">help screen</a>.', array(
                    '%language' => $languages[$language_code]->name,
                    '@locale-help' => url('admin/help/locale'),
                )), 'Language has been created.');
            }
        }
        elseif ($this->xpath('//input[@type="checkbox" and @name=:name and @checked="checked"]', array(
            ':name' => 'enabled[' . $language_code . ']',
        ))) {
            // It's installed and enabled. No need to do anything.
            $this->assertTrue(true, 'Language [' . $language_code . '] already installed and enabled.');
        }
        else {
            // It's installed but not enabled. Enable it.
            $this->assertTrue(true, 'Language [' . $language_code . '] already installed.');
            $this->drupalPost(NULL, array(
                'enabled[' . $language_code . ']' => TRUE,
            ), t('Save configuration'));
            $this->assertRaw(t('Configuration saved.'), 'Language successfully enabled.');
        }
    }
    
    /**
     * Creates a "Basic page" in the specified language.
     *
     * @param $title
     *   The title of a basic page in the specified language.
     * @param $body
     *   The body of a basic page in the specified language.
     * @param $language
     *   (optional) Language code.
     *
     * @return
     *   A node object.
     */
    function createPage($title, $body, $language = NULL) {
        $edit = array();
        $langcode = LANGUAGE_NONE;
        $edit["title"] = $title;
        $edit["body[{$langcode}][0][value]"] = $body;
        if (!empty($language)) {
            $edit['language'] = $language;
        }
        $this->drupalPost('node/add/page', $edit, t('Save'));
        $this->assertRaw(t('Basic page %title has been created.', array(
            '%title' => $title,
        )), 'Basic page created.');
        // Check to make sure the node was created.
        $node = $this->drupalGetNodeByTitle($title);
        $this->assertTrue($node, 'Node found in database.');
        return $node;
    }
    
    /**
     * Creates a translation for a basic page in the specified language.
     *
     * @param $node
     *   The basic page to create the translation for.
     * @param $title
     *   The title of a basic page in the specified language.
     * @param $body
     *   The body of a basic page in the specified language.
     * @param $language
     *   Language code.
     *
     * @return
     *   Translation object.
     */
    function createTranslation($node, $title, $body, $language) {
        $this->drupalGet('node/add/page', array(
            'query' => array(
                'translation' => $node->nid,
                'target' => $language,
            ),
        ));
        $langcode = LANGUAGE_NONE;
        $body_key = "body[{$langcode}][0][value]";
        $this->assertFieldByXPath('//input[@id="edit-title"]', $node->title, "Original title value correctly populated.");
        $this->assertFieldByXPath("//textarea[@name='{$body_key}']", $node->body[LANGUAGE_NONE][0]['value'], "Original body value correctly populated.");
        $edit = array();
        $edit["title"] = $title;
        $edit[$body_key] = $body;
        $this->drupalPost(NULL, $edit, t('Save'));
        $this->assertRaw(t('Basic page %title has been created.', array(
            '%title' => $title,
        )), 'Translation created.');
        // Check to make sure that translation was successful.
        $translation = $this->drupalGetNodeByTitle($title);
        $this->assertTrue($translation, 'Node found in database.');
        $this->assertTrue($translation->tnid == $node->nid, 'Translation set id correctly stored.');
        return $translation;
    }
    
    /**
     * Asserts an element identified by the given XPath has the given content.
     *
     * @param $xpath
     *   The XPath used to find the element.
     * @param array $arguments
     *   An array of arguments with keys in the form ':name' matching the
     *   placeholders in the query. The values may be either strings or numeric
     *   values.
     * @param $value
     *   The text content of the matched element to assert.
     * @param $message
     *   The message to display.
     * @param $group
     *   The group this message belongs to.
     *
     * @return
     *   TRUE on pass, FALSE on fail.
     */
    function assertContentByXPath($xpath, array $arguments = array(), $value = NULL, $message = '', $group = 'Other') {
        $found = $this->findContentByXPath($xpath, $arguments, $value);
        return $this->assertTrue($found, $message, $group);
    }
    
    /**
     * Tests whether the specified language switch links are found.
     *
     * @param $node
     *   The node to display.
     * @param $translation
     *   The translation whose link has to be checked.
     * @param $find
     *   TRUE if the link must be present in the node page.
     * @param $types
     *   The page areas to be checked.
     *
     * @return
     *   TRUE if the language switch links are found, FALSE if not.
     */
    function assertLanguageSwitchLinks($node, $translation, $find = TRUE, $types = NULL) {
        if (empty($types)) {
            $types = array(
                'node',
                'block-locale',
            );
        }
        elseif (is_string($types)) {
            $types = array(
                $types,
            );
        }
        $result = TRUE;
        $languages = language_list();
        $page_language = $languages[entity_language('node', $node)];
        $translation_language = $languages[$translation->language];
        $url = url("node/{$translation->nid}", array(
            'language' => $translation_language,
        ));
        $this->drupalGet("node/{$node->nid}", array(
            'language' => $page_language,
        ));
        foreach ($types as $type) {
            $args = array(
                '%translation_language' => $translation_language->native,
                '%page_language' => $page_language->native,
                '%type' => $type,
            );
            if ($find) {
                $message = format_string('[%page_language] Language switch item found for %translation_language language in the %type page area.', $args);
            }
            else {
                $message = format_string('[%page_language] Language switch item not found for %translation_language language in the %type page area.', $args);
            }
            if (!empty($translation->nid)) {
                $xpath = '//div[contains(@class, :type)]//a[@href=:url]';
            }
            else {
                $xpath = '//div[contains(@class, :type)]//span[contains(@class, "locale-untranslated")]';
            }
            $found = $this->findContentByXPath($xpath, array(
                ':type' => $type,
                ':url' => $url,
            ), $translation_language->native);
            $result = $this->assertTrue($found == $find, $message) && $result;
        }
        return $result;
    }
    
    /**
     * Searches for elements matching the given xpath and value.
     *
     * @param $xpath
     *   The XPath used to find the element.
     * @param array $arguments
     *   An array of arguments with keys in the form ':name' matching the
     *   placeholders in the query. The values may be either strings or numeric
     *   values.
     * @param $value
     *   The text content of the matched element to assert.
     *
     * @return
     *   TRUE if found, otherwise FALSE.
     */
    function findContentByXPath($xpath, array $arguments = array(), $value = NULL) {
        $elements = $this->xpath($xpath, $arguments);
        $found = TRUE;
        if ($value && $elements) {
            $found = FALSE;
            foreach ($elements as $element) {
                if ((string) $element == $value) {
                    $found = TRUE;
                    break;
                }
            }
        }
        return $elements && $found;
    }

}