rdf.test

<?php


/**
 * @file
 * Tests for rdf.module.
 */
class RdfMappingHookTestCase extends DrupalWebTestCase {
    public static function getInfo() {
        return array(
            'name' => 'RDF mapping hook',
            'description' => 'Test hook_rdf_mapping().',
            'group' => 'RDF',
        );
    }
    function setUp() {
        parent::setUp('rdf', 'rdf_test', 'field_test');
    }
    
    /**
     * Test that hook_rdf_mapping() correctly returns and processes mapping.
     */
    function testMapping() {
        // Test that the mapping is returned correctly by the hook.
        $mapping = rdf_mapping_load('test_entity', 'test_bundle');
        $this->assertIdentical($mapping['rdftype'], array(
            'sioc:Post',
        ), 'Mapping for rdftype is sioc:Post.');
        $this->assertIdentical($mapping['title'], array(
            'predicates' => array(
                'dc:title',
            ),
        ), 'Mapping for title is dc:title.');
        $this->assertIdentical($mapping['created'], array(
            'predicates' => array(
                'dc:created',
            ),
            'datatype' => 'xsd:dateTime',
            'callback' => 'date_iso8601',
        ), t('Mapping for created is dc:created with datatype xsd:dateTime and callback date_iso8601.'));
        $this->assertIdentical($mapping['uid'], array(
            'predicates' => array(
                'sioc:has_creator',
                'dc:creator',
            ),
            'type' => 'rel',
        ), 'Mapping for uid is sioc:has_creator and dc:creator, and type is rel.');
        $mapping = rdf_mapping_load('test_entity', 'test_bundle_no_mapping');
        $this->assertEqual($mapping, array(), 'Empty array returned when an entity type, bundle pair has no mapping.');
    }

}

/**
 * Test RDFa markup generation.
 */
class RdfRdfaMarkupTestCase extends DrupalWebTestCase {
    public static function getInfo() {
        return array(
            'name' => 'RDFa markup',
            'description' => 'Test RDFa markup generation.',
            'group' => 'RDF',
        );
    }
    function setUp() {
        parent::setUp('rdf', 'field_test', 'rdf_test');
    }
    
    /**
     * Test rdf_rdfa_attributes().
     */
    function testDrupalRdfaAttributes() {
        // Same value as the one in the HTML tag (no callback function).
        $expected_attributes = array(
            'property' => array(
                'dc:title',
            ),
        );
        $mapping = rdf_mapping_load('test_entity', 'test_bundle');
        $attributes = rdf_rdfa_attributes($mapping['title']);
        ksort($expected_attributes);
        ksort($attributes);
        $this->assertEqual($expected_attributes, $attributes);
        // Value different from the one in the HTML tag (callback function).
        $date = 1252750327;
        $isoDate = date('c', $date);
        $expected_attributes = array(
            'datatype' => 'xsd:dateTime',
            'property' => array(
                'dc:created',
            ),
            'content' => $isoDate,
        );
        $mapping = rdf_mapping_load('test_entity', 'test_bundle');
        $attributes = rdf_rdfa_attributes($mapping['created'], $date);
        ksort($expected_attributes);
        ksort($attributes);
        $this->assertEqual($expected_attributes, $attributes);
        // Same value as the one in the HTML tag with datatype.
        $expected_attributes = array(
            'datatype' => 'foo:bar1type',
            'property' => array(
                'foo:bar1',
            ),
        );
        $mapping = rdf_mapping_load('test_entity', 'test_bundle');
        $attributes = rdf_rdfa_attributes($mapping['foobar1']);
        ksort($expected_attributes);
        ksort($attributes);
        $this->assertEqual($expected_attributes, $attributes);
        // ObjectProperty mapping (rel).
        $expected_attributes = array(
            'rel' => array(
                'sioc:has_creator',
                'dc:creator',
            ),
        );
        $mapping = rdf_mapping_load('test_entity', 'test_bundle');
        $attributes = rdf_rdfa_attributes($mapping['foobar_objproperty1']);
        ksort($expected_attributes);
        ksort($attributes);
        $this->assertEqual($expected_attributes, $attributes);
        // Inverse ObjectProperty mapping (rev).
        $expected_attributes = array(
            'rev' => array(
                'sioc:reply_of',
            ),
        );
        $mapping = rdf_mapping_load('test_entity', 'test_bundle');
        $attributes = rdf_rdfa_attributes($mapping['foobar_objproperty2']);
        ksort($expected_attributes);
        ksort($attributes);
        $this->assertEqual($expected_attributes, $attributes);
    }
    
    /**
     * Ensure that file fields have the correct resource as the object in RDFa
     * when displayed as a teaser.
     */
    function testAttributesInMarkupFile() {
        // Create a user to post the image.
        $admin_user = $this->drupalCreateUser(array(
            'edit own article content',
            'revert revisions',
            'administer content types',
        ));
        $this->drupalLogin($admin_user);
        $langcode = LANGUAGE_NONE;
        $bundle_name = "article";
        $field_name = 'file_test';
        $field = array(
            'field_name' => $field_name,
            'type' => 'file',
        );
        field_create_field($field);
        $instance = array(
            'field_name' => $field_name,
            'entity_type' => 'node',
            'bundle' => $bundle_name,
            'display' => array(
                'teaser' => array(
                    'type' => 'file_default',
                ),
            ),
        );
        field_create_instance($instance);
        // Set the RDF mapping for the new field.
        $rdf_mapping = rdf_mapping_load('node', $bundle_name);
        $rdf_mapping += array(
            $field_name => array(
                'predicates' => array(
                    'rdfs:seeAlso',
                ),
                'type' => 'rel',
            ),
        );
        $rdf_mapping_save = array(
            'mapping' => $rdf_mapping,
            'type' => 'node',
            'bundle' => $bundle_name,
        );
        rdf_mapping_save($rdf_mapping_save);
        // Get the test file that simpletest provides.
        $file = current($this->drupalGetTestFiles('text'));
        // Prepare image variables.
        $image_field = "field_image";
        // Get the test image that simpletest provides.
        $image = current($this->drupalGetTestFiles('image'));
        // Create an array for drupalPost with the field names as the keys and
        // the URIs for the test files as the values.
        $edit = array(
            "files[" . $field_name . "_" . $langcode . "_0]" => drupal_realpath($file->uri),
            "files[" . $image_field . "_" . $langcode . "_0]" => drupal_realpath($image->uri),
        );
        // Create node and save, then edit node to upload files.
        $node = $this->drupalCreateNode(array(
            'type' => 'article',
            'promote' => 1,
        ));
        $this->drupalPost('node/' . $node->nid . '/edit', $edit, t('Save'));
        // Get filenames and nid for comparison with HTML output.
        $file_filename = $file->filename;
        $image_filename = $image->filename;
        $nid = $node->nid;
        // Navigate to front page, where node is displayed in teaser form.
        $this->drupalGet('node');
        // We only check to make sure that the resource attribute contains '.txt'
        // instead of the full file name because the filename is altered on upload.
        $file_rel = $this->xpath('//div[contains(@about, :node-uri)]//div[contains(@rel, "rdfs:seeAlso") and contains(@resource, ".txt")]', array(
            ':node-uri' => 'node/' . $nid,
        ));
        $this->assertTrue(!empty($file_rel), "Attribute 'rel' set on file field. Attribute 'resource' is also set.");
        $image_rel = $this->xpath('//div[contains(@about, :node-uri)]//div[contains(@rel, "rdfs:seeAlso") and contains(@resource, :image)]//img[contains(@typeof, "foaf:Image")]', array(
            ':node-uri' => 'node/' . $nid,
            ':image' => $image_filename,
        ));
        $this->assertTrue(!empty($image_rel), "Attribute 'rel' set on image field. Attribute 'resource' is also set.");
        // Edits the node to add tags.
        $tag1 = $this->randomName(8);
        $tag2 = $this->randomName(8);
        $edit = array();
        $edit['field_tags[' . LANGUAGE_NONE . ']'] = "{$tag1}, {$tag2}";
        $this->drupalPost('node/' . $node->nid . '/edit', $edit, t('Save'));
        // Ensures the RDFa markup for the relationship between the node and its
        // tags is correct.
        $term_rdfa_meta = $this->xpath('//div[@about=:node-url and contains(@typeof, "sioc:Item") and contains(@typeof, "foaf:Document")]//ul[@class="links"]/li[@rel="dc:subject"]/a[@typeof="skos:Concept" and @datatype="" and text()=:term-name]', array(
            ':node-url' => url('node/' . $node->nid),
            ':term-name' => $tag1,
        ));
        $this->assertTrue(!empty($term_rdfa_meta), 'Property dc:subject is present for the tag1 field item.');
        $term_rdfa_meta = $this->xpath('//div[@about=:node-url and contains(@typeof, "sioc:Item") and contains(@typeof, "foaf:Document")]//ul[@class="links"]/li[@rel="dc:subject"]/a[@typeof="skos:Concept" and @datatype="" and text()=:term-name]', array(
            ':node-url' => url('node/' . $node->nid),
            ':term-name' => $tag2,
        ));
        $this->assertTrue(!empty($term_rdfa_meta), 'Property dc:subject is present for the tag2 field item.');
    }

}
class RdfCrudTestCase extends DrupalWebTestCase {
    public static function getInfo() {
        return array(
            'name' => 'RDF mapping CRUD functions',
            'description' => 'Test the RDF mapping CRUD functions.',
            'group' => 'RDF',
        );
    }
    function setUp() {
        parent::setUp('rdf', 'rdf_test');
    }
    
    /**
     * Test inserting, loading, updating, and deleting RDF mappings.
     */
    function testCRUD() {
        // Verify loading of a default mapping.
        $mapping = _rdf_mapping_load('test_entity', 'test_bundle');
        $this->assertTrue(count($mapping), 'Default mapping was found.');
        // Verify saving a mapping.
        $mapping = array(
            'type' => 'crud_test_entity',
            'bundle' => 'crud_test_bundle',
            'mapping' => array(
                'rdftype' => array(
                    'sioc:Post',
                ),
                'title' => array(
                    'predicates' => array(
                        'dc:title',
                    ),
                ),
                'uid' => array(
                    'predicates' => array(
                        'sioc:has_creator',
                        'dc:creator',
                    ),
                    'type' => 'rel',
                ),
            ),
        );
        $this->assertTrue(rdf_mapping_save($mapping) === SAVED_NEW, 'Mapping was saved.');
        // Read the raw record from the {rdf_mapping} table.
        $result = db_query('SELECT * FROM {rdf_mapping} WHERE type = :type AND bundle = :bundle', array(
            ':type' => $mapping['type'],
            ':bundle' => $mapping['bundle'],
        ));
        $stored_mapping = $result->fetchAssoc();
        $stored_mapping['mapping'] = unserialize($stored_mapping['mapping']);
        $this->assertEqual($mapping, $stored_mapping, 'Mapping was stored properly in the {rdf_mapping} table.');
        // Verify loading of saved mapping.
        $this->assertEqual($mapping['mapping'], _rdf_mapping_load($mapping['type'], $mapping['bundle']), 'Saved mapping loaded successfully.');
        // Verify updating of mapping.
        $mapping['mapping']['title'] = array(
            'predicates' => array(
                'dc2:bar2',
            ),
        );
        $this->assertTrue(rdf_mapping_save($mapping) === SAVED_UPDATED, 'Mapping was updated.');
        // Read the raw record from the {rdf_mapping} table.
        $result = db_query('SELECT * FROM {rdf_mapping} WHERE type = :type AND bundle = :bundle', array(
            ':type' => $mapping['type'],
            ':bundle' => $mapping['bundle'],
        ));
        $stored_mapping = $result->fetchAssoc();
        $stored_mapping['mapping'] = unserialize($stored_mapping['mapping']);
        $this->assertEqual($mapping, $stored_mapping, 'Updated mapping was stored properly in the {rdf_mapping} table.');
        // Verify loading of saved mapping.
        $this->assertEqual($mapping['mapping'], _rdf_mapping_load($mapping['type'], $mapping['bundle']), 'Saved mapping loaded successfully.');
        // Verify deleting of mapping.
        $this->assertTrue(rdf_mapping_delete($mapping['type'], $mapping['bundle']), 'Mapping was deleted.');
        $this->assertFalse(_rdf_mapping_load($mapping['type'], $mapping['bundle']), 'Deleted mapping is no longer found in the database.');
    }

}
class RdfMappingDefinitionTestCase extends TaxonomyWebTestCase {
    public static function getInfo() {
        return array(
            'name' => 'RDF mapping definition functionality',
            'description' => 'Test the different types of RDF mappings and ensure the proper RDFa markup in included in nodes and user profile pages.',
            'group' => 'RDF',
        );
    }
    function setUp() {
        parent::setUp('rdf', 'rdf_test', 'blog');
    }
    
    /**
     * Create a node of type blog and test whether the RDF mapping defined for
     * this node type in rdf_test.module is used in the node page.
     */
    function testAttributesInMarkup1() {
        $node = $this->drupalCreateNode(array(
            'type' => 'blog',
        ));
        $isoDate = date('c', $node->changed);
        $url = url('node/' . $node->nid);
        $this->drupalGet('node/' . $node->nid);
        // Ensure the default bundle mapping for node is used. These attributes come
        // from the node default bundle definition.
        $blog_title = $this->xpath("//div[@about='{$url}']/span[@property='dc:title' and @content='{$node->title}']");
        $blog_meta = $this->xpath("//div[(@about='{$url}') and (@typeof='sioct:Weblog')]//span[contains(@property, 'dc:date') and contains(@property, 'dc:created') and @datatype='xsd:dateTime' and @content='{$isoDate}']");
        $this->assertTrue(!empty($blog_title), 'Property dc:title is present in meta tag.');
        $this->assertTrue(!empty($blog_meta), 'RDF type is present on post. Properties dc:date and dc:created are present on post date.');
    }
    
    /**
     * Create a content type and a node of type test_bundle_hook_install and test
     * whether the RDF mapping defined in rdf_test.install is used.
     */
    function testAttributesInMarkup2() {
        $type = $this->drupalCreateContentType(array(
            'type' => 'test_bundle_hook_install',
        ));
        // Create node with single quotation mark title to ensure it does not get
        // escaped more than once.
        $node = $this->drupalCreateNode(array(
            'type' => 'test_bundle_hook_install',
            'title' => $this->randomName(8) . "'",
        ));
        $isoDate = date('c', $node->changed);
        $url = url('node/' . $node->nid);
        $this->drupalGet('node/' . $node->nid);
        // Ensure the mapping defined in rdf_module.test is used.
        $test_bundle_title = $this->xpath("//div[@about='{$url}']/span[@property='dc:title' and @content=\"{$node->title}\"]");
        $test_bundle_meta = $this->xpath("//div[(@about='{$url}') and contains(@typeof, 'foo:mapping_install1') and contains(@typeof, 'bar:mapping_install2')]//span[contains(@property, 'dc:date') and contains(@property, 'dc:created') and @datatype='xsd:dateTime' and @content='{$isoDate}']");
        $this->assertTrue(!empty($test_bundle_title), 'Property dc:title is present in meta tag.');
        $this->assertTrue(!empty($test_bundle_meta), 'RDF type is present on post. Properties dc:date and dc:created are present on post date.');
    }
    
    /**
     * Create a random content type and node and ensure the default mapping for
     * node is used.
     */
    function testAttributesInMarkup3() {
        $type = $this->drupalCreateContentType();
        $node = $this->drupalCreateNode(array(
            'type' => $type->type,
        ));
        $isoDate = date('c', $node->changed);
        $url = url('node/' . $node->nid);
        $this->drupalGet('node/' . $node->nid);
        // Ensure the default bundle mapping for node is used. These attributes come
        // from the node default bundle definition.
        $random_bundle_title = $this->xpath("//div[@about='{$url}']/span[@property='dc:title' and @content='{$node->title}']");
        $random_bundle_meta = $this->xpath("//div[(@about='{$url}') and contains(@typeof, 'sioc:Item') and contains(@typeof, 'foaf:Document')]//span[contains(@property, 'dc:date') and contains(@property, 'dc:created') and @datatype='xsd:dateTime' and @content='{$isoDate}']");
        $this->assertTrue(!empty($random_bundle_title), 'Property dc:title is present in meta tag.');
        $this->assertTrue(!empty($random_bundle_meta), 'RDF type is present on post. Properties dc:date and dc:created are present on post date.');
    }
    
    /**
     * Create a random user and ensure the default mapping for user is used.
     */
    function testUserAttributesInMarkup() {
        // Create two users, one with access to user profiles.
        $user1 = $this->drupalCreateUser(array(
            'access user profiles',
        ));
        $user2 = $this->drupalCreateUser();
        $username = $user2->name;
        $this->drupalLogin($user1);
        // Browse to the user profile page.
        $this->drupalGet('user/' . $user2->uid);
        // Ensure the default bundle mapping for user is used on the user profile
        // page. These attributes come from the user default bundle definition.
        $account_uri = url('user/' . $user2->uid);
        $person_uri = url('user/' . $user2->uid, array(
            'fragment' => 'me',
        ));
        $user2_profile_about = $this->xpath('//div[@class="profile" and @typeof="sioc:UserAccount" and @about=:account-uri]', array(
            ':account-uri' => $account_uri,
        ));
        $this->assertTrue(!empty($user2_profile_about), 'RDFa markup found on user profile page');
        $user_account_holder = $this->xpath('//meta[contains(@typeof, "foaf:Person") and @about=:person-uri and @resource=:account-uri and contains(@rel, "foaf:account")]', array(
            ':person-uri' => $person_uri,
            ':account-uri' => $account_uri,
        ));
        $this->assertTrue(!empty($user_account_holder), 'URI created for account holder and username set on sioc:UserAccount.');
        $user_username = $this->xpath('//meta[@about=:account-uri and contains(@property, "foaf:name") and @content=:username]', array(
            ':account-uri' => $account_uri,
            ':username' => $username,
        ));
        $this->assertTrue(!empty($user_username), 'foaf:name set on username.');
        // User 2 creates node.
        $this->drupalLogin($user2);
        $node = $this->drupalCreateNode(array(
            'type' => 'article',
            'promote' => 1,
        ));
        $this->drupalLogin($user1);
        $this->drupalGet('node/' . $node->nid);
        // Ensures the default bundle mapping for user is used on the Authored By
        // information on the node.
        $author_about = $this->xpath('//a[@typeof="sioc:UserAccount" and @about=:account-uri and @property="foaf:name" and @datatype="" and contains(@xml:lang, "")]', array(
            ':account-uri' => $account_uri,
        ));
        $this->assertTrue(!empty($author_about), 'RDFa markup found on author information on post. xml:lang on username is set to empty string.');
    }
    
    /**
     * Creates a random term and ensures the right RDFa markup is used.
     */
    function testTaxonomyTermRdfaAttributes() {
        $vocabulary = $this->createVocabulary();
        $term = $this->createTerm($vocabulary);
        // Views the term and checks that the RDFa markup is correct.
        $this->drupalGet('taxonomy/term/' . $term->tid);
        $term_url = url('taxonomy/term/' . $term->tid);
        $term_name = $term->name;
        $term_rdfa_meta = $this->xpath('//meta[@typeof="skos:Concept" and @about=:term-url and contains(@property, "rdfs:label") and contains(@property, "skos:prefLabel") and @content=:term-name]', array(
            ':term-url' => $term_url,
            ':term-name' => $term_name,
        ));
        $this->assertTrue(!empty($term_rdfa_meta), 'RDFa markup found on term page.');
    }

}
class RdfCommentAttributesTestCase extends CommentHelperCase {
    protected $node1;
    protected $node2;
    public static function getInfo() {
        return array(
            'name' => 'RDF comment mapping',
            'description' => 'Tests the RDFa markup of comments.',
            'group' => 'RDF',
        );
    }
    public function setUp() {
        parent::setUp('comment', 'rdf', 'rdf_test');
        $this->admin_user = $this->drupalCreateUser(array(
            'administer content types',
            'administer comments',
            'administer permissions',
            'administer blocks',
        ));
        $this->web_user = $this->drupalCreateUser(array(
            'access comments',
            'post comments',
            'create article content',
            'access user profiles',
        ));
        // Enables anonymous user comments.
        user_role_change_permissions(DRUPAL_ANONYMOUS_RID, array(
            'access comments' => TRUE,
            'post comments' => TRUE,
            'skip comment approval' => TRUE,
        ));
        // Allows anonymous to leave their contact information.
        $this->setCommentAnonymous(COMMENT_ANONYMOUS_MAY_CONTACT);
        $this->setCommentPreview(DRUPAL_OPTIONAL);
        $this->setCommentForm(TRUE);
        $this->setCommentSubject(TRUE);
        $this->setCommentSettings('comment_default_mode', COMMENT_MODE_THREADED, 'Comment paging changed.');
        // Creates the nodes on which the test comments will be posted.
        $this->drupalLogin($this->web_user);
        $this->node1 = $this->drupalCreateNode(array(
            'type' => 'article',
            'promote' => 1,
        ));
        $this->node2 = $this->drupalCreateNode(array(
            'type' => 'article',
            'promote' => 1,
        ));
        $this->drupalLogout();
    }
    
    /**
     * Tests the presence of the RDFa markup for the number of comments.
     */
    public function testNumberOfCommentsRdfaMarkup() {
        // Posts 2 comments as a registered user.
        $this->drupalLogin($this->web_user);
        $this->postComment($this->node1, $this->randomName(), $this->randomName());
        $this->postComment($this->node1, $this->randomName(), $this->randomName());
        // Tests number of comments in teaser view.
        $this->drupalGet('node');
        $node_url = url('node/' . $this->node1->nid);
        $comment_count_teaser = $this->xpath('//div[@about=:node-url]/span[@property="sioc:num_replies" and @content="2" and @datatype="xsd:integer"]', array(
            ':node-url' => $node_url,
        ));
        $this->assertTrue(!empty($comment_count_teaser), 'RDFa markup for the number of comments found on teaser view.');
        // Tests number of comments in full node view.
        $this->drupalGet('node/' . $this->node1->nid);
        $comment_count_teaser = $this->xpath('//div[@about=:node-url]/span[@property="sioc:num_replies" and @content="2" and @datatype="xsd:integer"]', array(
            ':node-url' => $node_url,
        ));
        $this->assertTrue(!empty($comment_count_teaser), 'RDFa markup for the number of comments found on full node view.');
    }
    
    /**
     * Tests the presence of the RDFa markup for the title, date and author and
     * homepage on registered users and anonymous comments.
     */
    public function testCommentRdfaMarkup() {
        // Posts comment #1 as a registered user.
        $this->drupalLogin($this->web_user);
        $comment1_subject = $this->randomName();
        $comment1_body = $this->randomName();
        $comment1 = $this->postComment($this->node1, $comment1_body, $comment1_subject);
        // Tests comment #1 with access to the user profile.
        $this->drupalGet('node/' . $this->node1->nid);
        $this->_testBasicCommentRdfaMarkup($comment1);
        // Tests comment #1 with no access to the user profile (as anonymous user).
        $this->drupalLogout();
        $this->drupalGet('node/' . $this->node1->nid);
        $this->_testBasicCommentRdfaMarkup($comment1);
        // Posts comment #2 as anonymous user.
        $comment2_subject = $this->randomName();
        $comment2_body = $this->randomName();
        $anonymous_user = array();
        $anonymous_user['name'] = $this->randomName();
        $anonymous_user['mail'] = 'tester@simpletest.org';
        $anonymous_user['homepage'] = 'http://example.org/';
        $comment2 = $this->postComment($this->node2, $comment2_body, $comment2_subject, $anonymous_user);
        $this->drupalGet('node/' . $this->node2->nid);
        // Tests comment #2 as anonymous user.
        $this->_testBasicCommentRdfaMarkup($comment2, $anonymous_user);
        // Tests the RDFa markup for the homepage (specific to anonymous comments).
        $comment_homepage = $this->xpath('//div[contains(@class, "comment") and contains(@typeof, "sioct:Comment")]//span[@rel="sioc:has_creator"]/a[contains(@class, "username") and @typeof="sioc:UserAccount" and @property="foaf:name" and @datatype="" and @href="http://example.org/" and contains(@rel, "foaf:page")]');
        $this->assertTrue(!empty($comment_homepage), 'RDFa markup for the homepage of anonymous user found.');
        // There should be no about attribute on anonymous comments.
        $comment_homepage = $this->xpath('//div[contains(@class, "comment") and contains(@typeof, "sioct:Comment")]//span[@rel="sioc:has_creator"]/a[@about]');
        $this->assertTrue(empty($comment_homepage), 'No about attribute is present on anonymous user comment.');
        // Tests comment #2 as logged in user.
        $this->drupalLogin($this->web_user);
        $this->drupalGet('node/' . $this->node2->nid);
        $this->_testBasicCommentRdfaMarkup($comment2, $anonymous_user);
        // Tests the RDFa markup for the homepage (specific to anonymous comments).
        $comment_homepage = $this->xpath('//div[contains(@class, "comment") and contains(@typeof, "sioct:Comment")]//span[@rel="sioc:has_creator"]/a[contains(@class, "username") and @typeof="sioc:UserAccount" and @property="foaf:name" and @datatype="" and @href="http://example.org/" and contains(@rel, "foaf:page")]');
        $this->assertTrue(!empty($comment_homepage), "RDFa markup for the homepage of anonymous user found.");
        // There should be no about attribute on anonymous comments.
        $comment_homepage = $this->xpath('//div[contains(@class, "comment") and contains(@typeof, "sioct:Comment")]//span[@rel="sioc:has_creator"]/a[@about]');
        $this->assertTrue(empty($comment_homepage), "No about attribute is present on anonymous user comment.");
    }
    
    /**
     * Test RDF comment replies.
     */
    public function testCommentReplyOfRdfaMarkup() {
        // Posts comment #1 as a registered user.
        $this->drupalLogin($this->web_user);
        $comments[] = $this->postComment($this->node1, $this->randomName(), $this->randomName());
        // Tests the reply_of relationship of a first level comment.
        $result = $this->xpath("(id('comments')//div[contains(@class,'comment ')])[position()=1]//span[@rel='sioc:reply_of' and @resource=:node]", array(
            ':node' => url("node/{$this->node1->nid}"),
        ));
        $this->assertEqual(1, count($result), 'RDFa markup referring to the node is present.');
        $result = $this->xpath("(id('comments')//div[contains(@class,'comment ')])[position()=1]//span[@rel='sioc:reply_of' and @resource=:comment]", array(
            ':comment' => url('comment/1#comment-1'),
        ));
        $this->assertFalse($result, 'No RDFa markup referring to the comment itself is present.');
        // Posts a reply to the first comment.
        $this->drupalGet('comment/reply/' . $this->node1->nid . '/' . $comments[0]->id);
        $comments[] = $this->postComment(NULL, $this->randomName(), $this->randomName(), TRUE);
        // Tests the reply_of relationship of a second level comment.
        $result = $this->xpath("(id('comments')//div[contains(@class,'comment ')])[position()=2]//span[@rel='sioc:reply_of' and @resource=:node]", array(
            ':node' => url("node/{$this->node1->nid}"),
        ));
        $this->assertEqual(1, count($result), 'RDFa markup referring to the node is present.');
        $result = $this->xpath("(id('comments')//div[contains(@class,'comment ')])[position()=2]//span[@rel='sioc:reply_of' and @resource=:comment]", array(
            ':comment' => url('comment/1', array(
                'fragment' => 'comment-1',
            )),
        ));
        $this->assertEqual(1, count($result), 'RDFa markup referring to the parent comment is present.');
        $comments = $this->xpath("(id('comments')//div[contains(@class,'comment ')])[position()=2]");
    }
    
    /**
     * Helper function for testCommentRdfaMarkup().
     *
     * Tests the current page for basic comment RDFa markup.
     *
     * @param $comment
     *   Comment object.
     * @param $account
     *   An array containing information about an anonymous user.
     */
    function _testBasicCommentRdfaMarkup($comment, $account = array()) {
        $comment_container = $this->xpath('//div[contains(@class, "comment") and contains(@typeof, "sioct:Comment")]');
        $this->assertTrue(!empty($comment_container), "Comment RDF type for comment found.");
        $comment_title = $this->xpath('//div[contains(@class, "comment") and contains(@typeof, "sioct:Comment")]//h3[@property="dc:title"]');
        $this->assertEqual((string) $comment_title[0]->a, $comment->subject, "RDFa markup for the comment title found.");
        $comment_date = $this->xpath('//div[contains(@class, "comment") and contains(@typeof, "sioct:Comment")]//*[contains(@property, "dc:date") and contains(@property, "dc:created")]');
        $this->assertTrue(!empty($comment_date), "RDFa markup for the date of the comment found.");
        // The author tag can be either a or span
        $comment_author = $this->xpath('//div[contains(@class, "comment") and contains(@typeof, "sioct:Comment")]//span[@rel="sioc:has_creator"]/*[contains(@class, "username") and @typeof="sioc:UserAccount" and @property="foaf:name" and @datatype=""]');
        $name = empty($account["name"]) ? $this->web_user->name : $account["name"] . " (not verified)";
        $this->assertEqual((string) $comment_author[0], $name, "RDFa markup for the comment author found.");
        $comment_body = $this->xpath('//div[contains(@class, "comment") and contains(@typeof, "sioct:Comment")]//div[@class="content"]//div[contains(@class, "comment-body")]//div[@property="content:encoded"]');
        $this->assertEqual((string) $comment_body[0]->p, $comment->comment, "RDFa markup for the comment body found.");
    }

}
class RdfTrackerAttributesTestCase extends DrupalWebTestCase {
    public static function getInfo() {
        return array(
            'name' => 'RDF tracker page mapping',
            'description' => 'Test the mapping for the tracker page and ensure the proper RDFa markup in included.',
            'group' => 'RDF',
        );
    }
    function setUp() {
        parent::setUp('rdf', 'rdf_test', 'tracker');
        // Enable anonymous posting of content.
        user_role_change_permissions(DRUPAL_ANONYMOUS_RID, array(
            'create article content' => TRUE,
            'access comments' => TRUE,
            'post comments' => TRUE,
            'skip comment approval' => TRUE,
        ));
    }
    
    /**
     * Create nodes as both admin and anonymous user and test for correct RDFa
     * markup on the tracker page for those nodes and their comments.
     */
    function testAttributesInTracker() {
        // Create node as anonymous user.
        $node_anon = $this->drupalCreateNode(array(
            'type' => 'article',
            'uid' => 0,
        ));
        // Create node as admin user.
        $node_admin = $this->drupalCreateNode(array(
            'type' => 'article',
            'uid' => 1,
        ));
        // Pass both the anonymously posted node and the administrator posted node
        // through to test for the RDF attributes.
        $this->_testBasicTrackerRdfaMarkup($node_anon);
        $this->_testBasicTrackerRdfaMarkup($node_admin);
    }
    
    /**
     * Helper function for testAttributesInTracker().
     *
     * Tests the tracker page for RDFa markup.
     *
     * @param $node
     * The node just created.
     */
    function _testBasicTrackerRdfaMarkup($node) {
        $url = url('node/' . $node->nid);
        $user = $node->uid == 0 ? 'Anonymous user' : 'Registered user';
        // Navigate to tracker page.
        $this->drupalGet('tracker');
        // Tests whether the about property is applied. This is implicit in the
        // success of the following tests, but making it explicit will make
        // debugging easier in case of failure.
        $tracker_about = $this->xpath('//tr[@about=:url]', array(
            ':url' => $url,
        ));
        $this->assertTrue(!empty($tracker_about), format_string('About attribute found on table row for @user content.', array(
            '@user' => $user,
        )));
        // Tests whether the title has the correct property attribute.
        $tracker_title = $this->xpath('//tr[@about=:url]/td[@property="dc:title" and @datatype=""]', array(
            ':url' => $url,
        ));
        $this->assertTrue(!empty($tracker_title), format_string('Title property attribute found on @user content.', array(
            '@user' => $user,
        )));
        // Tests whether the relationship between the content and user has been set.
        $tracker_user = $this->xpath('//tr[@about=:url]//td[contains(@rel, "sioc:has_creator")]//*[contains(@typeof, "sioc:UserAccount") and contains(@property, "foaf:name")]', array(
            ':url' => $url,
        ));
        $this->assertTrue(!empty($tracker_user), format_string('Typeof and name property attributes found on @user.', array(
            '@user' => $user,
        )));
        // There should be an about attribute on logged in users and no about
        // attribute for anonymous users.
        $tracker_user = $this->xpath('//tr[@about=:url]//td[@rel="sioc:has_creator"]/*[@about]', array(
            ':url' => $url,
        ));
        if ($node->uid == 0) {
            $this->assertTrue(empty($tracker_user), format_string('No about attribute is present on @user.', array(
                '@user' => $user,
            )));
        }
        elseif ($node->uid > 0) {
            $this->assertTrue(!empty($tracker_user), format_string('About attribute is present on @user.', array(
                '@user' => $user,
            )));
        }
        // Tests whether the property has been set for number of comments.
        $tracker_replies = $this->xpath('//tr[@about=:url]//td[contains(@property, "sioc:num_replies") and contains(@content, "0") and @datatype="xsd:integer"]', array(
            ':url' => $url,
        ));
        $this->assertTrue($tracker_replies, format_string('Num replies property and content attributes found on @user content.', array(
            '@user' => $user,
        )));
        // Tests that the appropriate RDFa markup to annotate the latest activity
        // date has been added to the tracker output before comments have been
        // posted, meaning the latest activity reflects changes to the node itself.
        $isoDate = date('c', $node->changed);
        $tracker_activity = $this->xpath('//tr[@about=:url]//td[contains(@property, "dc:modified") and contains(@property, "sioc:last_activity_date") and contains(@datatype, "xsd:dateTime") and @content=:date]', array(
            ':url' => $url,
            ':date' => $isoDate,
        ));
        $this->assertTrue(!empty($tracker_activity), format_string('Latest activity date and changed properties found when there are no comments on @user content. Latest activity date content is correct.', array(
            '@user' => $user,
        )));
        // Tests that the appropriate RDFa markup to annotate the latest activity
        // date has been added to the tracker output after a comment is posted.
        $comment = array(
            'subject' => $this->randomName(),
            'comment_body[' . LANGUAGE_NONE . '][0][value]' => $this->randomName(),
        );
        $this->drupalPost('comment/reply/' . $node->nid, $comment, t('Save'));
        $this->drupalGet('tracker');
        // Tests whether the property has been set for number of comments.
        $tracker_replies = $this->xpath('//tr[@about=:url]//td[contains(@property, "sioc:num_replies") and contains(@content, "1") and @datatype="xsd:integer"]', array(
            ':url' => $url,
        ));
        $this->assertTrue($tracker_replies, format_string('Num replies property and content attributes found on @user content.', array(
            '@user' => $user,
        )));
        // Need to query database directly to obtain last_activity_date because
        // it cannot be accessed via node_load().
        $result = db_query('SELECT t.changed FROM {tracker_node} t WHERE t.nid = (:nid)', array(
            ':nid' => $node->nid,
        ));
        foreach ($result as $node) {
            $expected_last_activity_date = $node->changed;
        }
        $isoDate = date('c', $expected_last_activity_date);
        $tracker_activity = $this->xpath('//tr[@about=:url]//td[@property="sioc:last_activity_date" and @datatype="xsd:dateTime" and @content=:date]', array(
            ':url' => $url,
            ':date' => $isoDate,
        ));
        $this->assertTrue(!empty($tracker_activity), format_string('Latest activity date found when there are comments on @user content. Latest activity date content is correct.', array(
            '@user' => $user,
        )));
    }

}

/**
 * Tests for RDF namespaces declaration with hook_rdf_namespaces().
 */
class RdfGetRdfNamespacesTestCase extends DrupalWebTestCase {
    public static function getInfo() {
        return array(
            'name' => 'RDF namespaces',
            'description' => 'Test hook_rdf_namespaces() and ensure only "safe" namespaces are returned.',
            'group' => 'RDF',
        );
    }
    function setUp() {
        parent::setUp('rdf', 'rdf_test');
    }
    
    /**
     * Test getting RDF namesapces.
     */
    function testGetRdfNamespaces() {
        // Get all RDF namespaces.
        $ns = rdf_get_namespaces();
        $this->assertEqual($ns['rdfs'], 'http://www.w3.org/2000/01/rdf-schema#', 'A prefix declared once is included.');
        $this->assertEqual($ns['foaf'], 'http://xmlns.com/foaf/0.1/', 'The same prefix declared in several implementations of hook_rdf_namespaces() is valid as long as all the namespaces are the same.');
        $this->assertEqual($ns['foaf1'], 'http://xmlns.com/foaf/0.1/', 'Two prefixes can be assigned the same namespace.');
        $this->assertTrue(!isset($ns['dc']), 'A prefix with conflicting namespaces is discarded.');
    }

}