diff --git a/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7NoMultilingualTest.php b/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7NoMultilingualTest.php
index a9243d0..350c102 100644
--- a/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7NoMultilingualTest.php
+++ b/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7NoMultilingualTest.php
@@ -70,7 +70,7 @@ protected function getEntityCounts() {
       'migration' => 73,
       'node' => 5,
       'node_type' => 6,
-      'rdf_mapping' => 7,
+      'rdf_mapping' => 8,
       'search_page' => 2,
       'shortcut' => 6,
       'shortcut_set' => 2,
@@ -138,6 +138,7 @@ protected function getAvailablePaths() {
       'options',
       'path',
       'phone',
+      'rdf',
       'search',
       'shortcut',
       'statistics',
@@ -167,7 +168,6 @@ protected function getAvailablePaths() {
    */
   protected function getMissingPaths() {
     return [
-      'rdf',
       // These modules are in the missing path list because they are installed
       // on the source site but they are not installed on the destination site.
       'syslog',
diff --git a/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7ReviewPageTest.php b/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7ReviewPageTest.php
index 5e815cd..c1686db 100644
--- a/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7ReviewPageTest.php
+++ b/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7ReviewPageTest.php
@@ -76,6 +76,7 @@ protected function getAvailablePaths() {
       'path',
       'phone',
       'profile',
+      'rdf',
       'search',
       'shortcut',
       'statistics',
@@ -137,7 +138,6 @@ protected function getAvailablePaths() {
    */
   protected function getMissingPaths() {
     return [
-      'rdf',
       'views',
     ];
   }
diff --git a/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7Test.php b/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7Test.php
index 9ed36ad..c5fbacc 100644
--- a/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7Test.php
+++ b/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7Test.php
@@ -78,7 +78,7 @@ protected function getEntityCounts() {
       'migration' => 73,
       'node' => 5,
       'node_type' => 6,
-      'rdf_mapping' => 7,
+      'rdf_mapping' => 8,
       'search_page' => 2,
       'shortcut' => 6,
       'shortcut_set' => 2,
@@ -146,6 +146,7 @@ protected function getAvailablePaths() {
       'options',
       'path',
       'phone',
+      'rdf',
       'search',
       'shortcut',
       'statistics',
@@ -175,7 +176,6 @@ protected function getAvailablePaths() {
    */
   protected function getMissingPaths() {
     return [
-      'rdf',
       // These modules are in the missing path list because they are installed
       // on the source site but they are not installed on the destination site.
       'syslog',
diff --git a/core/modules/rdf/migrations/d7_rdf_mapping.yml b/core/modules/rdf/migrations/d7_rdf_mapping.yml
index 330aded..de60bd3 100644
--- a/core/modules/rdf/migrations/d7_rdf_mapping.yml
+++ b/core/modules/rdf/migrations/d7_rdf_mapping.yml
@@ -1,7 +1,8 @@
 id: d7_rdf_mapping
-label: Drupal 7 RDF Mapping
+label: Drupal 7 RDF Mappings
 migration_tags:
   - Drupal 7
+  - Configuration
 source:
   plugin: d7_rdf_mapping
 process:
diff --git a/core/modules/rdf/src/Plugin/migrate/source/d7/RdfMapping.php b/core/modules/rdf/src/Plugin/migrate/source/d7/RdfMapping.php
index 91f954d..2dca9e0 100644
--- a/core/modules/rdf/src/Plugin/migrate/source/d7/RdfMapping.php
+++ b/core/modules/rdf/src/Plugin/migrate/source/d7/RdfMapping.php
@@ -19,10 +19,7 @@ class RdfMapping extends DrupalSqlBase {
    * {@inheritdoc}
    */
   public function query() {
-    $query = $this->select('rdf_mapping', 'r')
-      ->fields('r', ['type', 'bundle', 'mapping'])
-      ->orderBy('type');
-    return $query;
+    return $this->select('rdf_mapping', 'r')->fields('r');
   }
 
   /**
@@ -52,7 +49,7 @@ public function fields() {
       'bundle' => $this->t('The name of the bundle a mapping applies to.'),
       'mapping' => $this->t('The serialized mapping of the bundle type and fields to RDF terms.'),
       'types' => $this->t('RDF types.'),
-      'fieldMappings' => $this->t('RDF field mappigs.'),
+      'fieldMappings' => $this->t('RDF field mappings.'),
     ];
   }
 
@@ -60,9 +57,14 @@ public function fields() {
    * {@inheritdoc}
    */
   public function getIds() {
-    $ids['type']['type'] = 'string';
-    $ids['bundle']['type'] = 'string';
-    return $ids;
+    return [
+      'type' => [
+        'type' => 'string',
+      ],
+      'bundle' => [
+        'type' => 'string',
+      ],
+    ];
   }
 
 }
diff --git a/core/modules/rdf/tests/src/Kernel/Migrate/d7/MigrateRdfMappingTest.php b/core/modules/rdf/tests/src/Kernel/Migrate/d7/MigrateRdfMappingTest.php
index 88e3165..c61a7c4 100644
--- a/core/modules/rdf/tests/src/Kernel/Migrate/d7/MigrateRdfMappingTest.php
+++ b/core/modules/rdf/tests/src/Kernel/Migrate/d7/MigrateRdfMappingTest.php
@@ -6,7 +6,7 @@
 use Drupal\Tests\migrate_drupal\Kernel\d7\MigrateDrupal7TestBase;
 
 /**
- * Tests RDF mappings migration.
+ * Tests RDF mappings migration from Drupal 7 to 8.
  *
  * @group rdf
  */
diff --git a/core/modules/rdf/tests/src/Kernel/Plugin/migrate/source/d7/MigrateRdfMappingTest.php b/core/modules/rdf/tests/src/Kernel/Plugin/migrate/source/d7/MigrateRdfMappingTest.php
deleted file mode 100644
index f75e60c..0000000
--- a/core/modules/rdf/tests/src/Kernel/Plugin/migrate/source/d7/MigrateRdfMappingTest.php
+++ /dev/null
@@ -1,35 +0,0 @@
-<?php
-
-namespace Drupal\Tests\node\Kernel\Plugin\migrate\source\d7;
-
-use Drupal\Tests\migrate\Kernel\MigrateSqlSourceTestBase;
-
-/**
- * Tests D7 rdf source plugin.
- *
- * @group rdf
- */
-class MigrateRdfMappingTest extends MigrateSqlSourceTestBase {
-
-  /**
-   * {@inheritdoc}
-   */
-  public static $modules = [
-    'rdf',
-    'comment',
-    'node',
-    'user',
-    'taxonomy',
-    'migrate_drupal',
-  ];
-
-  /**
-   * {@inheritdoc}
-   */
-  public function providerSource() {
-    $tests = [];
-    // @TODO: add source data for users, comments, nodes and taxonomy terms.
-    return $tests;
-  }
-
-}
diff --git a/core/modules/rdf/tests/src/Kernel/Plugin/migrate/source/d7/RdfMappingTest.php b/core/modules/rdf/tests/src/Kernel/Plugin/migrate/source/d7/RdfMappingTest.php
new file mode 100644
index 0000000..ab2c240
--- /dev/null
+++ b/core/modules/rdf/tests/src/Kernel/Plugin/migrate/source/d7/RdfMappingTest.php
@@ -0,0 +1,228 @@
+<?php
+
+namespace Drupal\Tests\node\Kernel\Plugin\migrate\source\d7;
+
+use Drupal\Tests\migrate\Kernel\MigrateSqlSourceTestBase;
+
+/**
+ * Tests Drupal 7 RDF mappings source plugin.
+ *
+ * @covers \Drupal\rdf\Plugin\migrate\source\d7\RdfMapping
+ *
+ * @group rdf
+ */
+class RdfMappingTest extends MigrateSqlSourceTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = [
+    'comment',
+    'migrate_drupal',
+    'node',
+    'rdf',
+    'taxonomy',
+    'user',
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
+  public function providerSource() {
+    $tests = [];
+
+    // The source data.
+    $tests[0]['source_data']['rdf_mapping'] = [
+      [
+        'type' => 'comment',
+        'bundle' => 'comment_node_article',
+        'mapping' => 'a:8:{s:7:"rdftype";a:2:{i:0;s:9:"sioc:Post";i:1;s:13:"sioct:Comment";}s:5:"title";a:1:{s:10:"predicates";a:1:{i:0;s:8:"dc:title";}}s:7:"created";a:3:{s:10:"predicates";a:2:{i:0;s:7:"dc:date";i:1;s:10:"dc:created";}s:8:"datatype";s:12:"xsd:dateTime";s:8:"callback";s:12:"date_iso8601";}s:7:"changed";a:3:{s:10:"predicates";a:1:{i:0;s:11:"dc:modified";}s:8:"datatype";s:12:"xsd:dateTime";s:8:"callback";s:12:"date_iso8601";}s:12:"comment_body";a:1:{s:10:"predicates";a:1:{i:0;s:15:"content:encoded";}}s:3:"pid";a:2:{s:10:"predicates";a:1:{i:0;s:13:"sioc:reply_of";}s:4:"type";s:3:"rel";}s:3:"uid";a:2:{s:10:"predicates";a:1:{i:0;s:16:"sioc:has_creator";}s:4:"type";s:3:"rel";}s:4:"name";a:1:{s:10:"predicates";a:1:{i:0;s:9:"foaf:name";}}}',
+      ],
+      [
+        'type' => 'node',
+        'bundle' => 'article',
+        'mapping' => 'a:9:{s:7:"rdftype";a:2:{i:0;s:9:"sioc:Item";i:1;s:13:"foaf:Document";}s:5:"title";a:1:{s:10:"predicates";a:1:{i:0;s:8:"dc:title";}}s:7:"created";a:3:{s:10:"predicates";a:2:{i:0;s:7:"dc:date";i:1;s:10:"dc:created";}s:8:"datatype";s:12:"xsd:dateTime";s:8:"callback";s:12:"date_iso8601";}s:7:"changed";a:3:{s:10:"predicates";a:1:{i:0;s:11:"dc:modified";}s:8:"datatype";s:12:"xsd:dateTime";s:8:"callback";s:12:"date_iso8601";}s:4:"body";a:1:{s:10:"predicates";a:1:{i:0;s:15:"content:encoded";}}s:3:"uid";a:2:{s:10:"predicates";a:1:{i:0;s:16:"sioc:has_creator";}s:4:"type";s:3:"rel";}s:4:"name";a:1:{s:10:"predicates";a:1:{i:0;s:9:"foaf:name";}}s:13:"comment_count";a:2:{s:10:"predicates";a:1:{i:0;s:16:"sioc:num_replies";}s:8:"datatype";s:11:"xsd:integer";}s:13:"last_activity";a:3:{s:10:"predicates";a:1:{i:0;s:23:"sioc:last_activity_date";}s:8:"datatype";s:12:"xsd:dateTime";s:8:"callback";s:12:"date_iso8601";}}',
+      ],
+      [
+        'type' => 'taxonomy_term',
+        'bundle' => 'tags',
+        'mapping' => 'a:5:{s:7:"rdftype";a:1:{i:0;s:12:"skos:Concept";}s:4:"name";a:1:{s:10:"predicates";a:2:{i:0;s:10:"rdfs:label";i:1;s:14:"skos:prefLabel";}}s:11:"description";a:1:{s:10:"predicates";a:1:{i:0;s:15:"skos:definition";}}s:3:"vid";a:2:{s:10:"predicates";a:1:{i:0;s:13:"skos:inScheme";}s:4:"type";s:3:"rel";}s:6:"parent";a:2:{s:10:"predicates";a:1:{i:0;s:12:"skos:broader";}s:4:"type";s:3:"rel";}}',
+      ],
+      [
+        'type' => 'user',
+        'bundle' => 'user',
+        'mapping' => 'a:3:{s:7:"rdftype";a:1:{i:0;s:16:"sioc:UserAccount";}s:4:"name";a:1:{s:10:"predicates";a:1:{i:0;s:9:"foaf:name";}}s:8:"homepage";a:2:{s:10:"predicates";a:1:{i:0;s:9:"foaf:page";}s:4:"type";s:3:"rel";}}',
+      ],
+    ];
+
+    // The expected results.
+    $tests[0]['expected_data'] = [
+      [
+        'type' => 'comment',
+        'bundle' => 'comment_node_article',
+        'types' => [
+          'sioc:Post',
+          'sioct:Comment',
+        ],
+        'fieldMappings' => [
+          'changed' => [
+            'predicates' => [
+              'dc:modified',
+            ],
+            'datatype' => 'xsd:dateTime',
+            'callback' => 'date_iso8601',
+          ],
+          'comment_body' => [
+            'predicates' => [
+              'content:encoded',
+            ],
+          ],
+          'created' => [
+            'predicates' => [
+              'dc:date',
+              'dc:created',
+            ],
+            'datatype' => 'xsd:dateTime',
+            'callback' => 'date_iso8601',
+          ],
+          'name' => [
+            'predicates' => [
+              'foaf:name',
+            ],
+          ],
+          'pid' => [
+            'predicates' => [
+              'sioc:reply_of',
+            ],
+            'type' => 'rel',
+          ],
+          'title' => [
+            'predicates' => [
+              'dc:title',
+            ],
+          ],
+          'uid' => [
+            'predicates' => [
+              'sioc:has_creator',
+            ],
+            'type' => 'rel',
+          ],
+        ],
+      ],
+      [
+        'type' => 'node',
+        'bundle' => 'article',
+        'types' => [
+          'sioc:Item',
+          'foaf:Document',
+        ],
+        'fieldMappings' => [
+          'body' => [
+            'predicates' => [
+              'content:encoded',
+            ],
+          ],
+          'changed' => [
+            'predicates' => [
+              'dc:modified',
+            ],
+            'datatype' => 'xsd:dateTime',
+            'callback' => 'date_iso8601',
+          ],
+          'comment_count' => [
+            'predicates' => [
+              'sioc:num_replies',
+            ],
+            'datatype' => 'xsd:integer',
+          ],
+          'created' => [
+            'predicates' => [
+              'dc:date',
+              'dc:created',
+            ],
+            'datatype' => 'xsd:dateTime',
+            'callback' => 'date_iso8601',
+          ],
+          'last_activity' => [
+            'predicates' => [
+              'sioc:last_activity_date',
+            ],
+            'datatype' => 'xsd:dateTime',
+            'callback' => 'date_iso8601',
+          ],
+          'name' => [
+            'predicates' => [
+              'foaf:name',
+            ],
+          ],
+          'title' => [
+            'predicates' => [
+              'dc:title',
+            ],
+          ],
+          'uid' => [
+            'predicates' => [
+              'sioc:has_creator',
+            ],
+            'type' => 'rel',
+          ],
+        ],
+      ],
+      [
+        'type' => 'taxonomy_term',
+        'bundle' => 'tags',
+        'types' => [
+          'skos:Concept',
+        ],
+        'fieldMappings' => [
+          'description' => [
+            'predicates' => [
+              'skos:definition',
+            ],
+          ],
+          'name' => [
+            'predicates' => [
+              'rdfs:label',
+              'skos:prefLabel',
+            ],
+          ],
+          'parent' => [
+            'predicates' => [
+              'skos:broader',
+            ],
+            'type' => 'rel',
+          ],
+          'vid' => [
+            'predicates' => [
+              'skos:inScheme',
+            ],
+            'type' => 'rel',
+          ],
+        ],
+      ],
+      [
+        'type' => 'user',
+        'bundle' => 'user',
+        'types' => [
+          'sioc:UserAccount',
+        ],
+        'fieldMappings' => [
+          'homepage' => [
+            'predicates' => [
+              'foaf:page',
+            ],
+            'type' => 'rel',
+          ],
+          'name' => [
+            'predicates' => [
+              'foaf:name',
+            ],
+          ],
+        ],
+      ],
+    ];
+
+    return $tests;
+  }
+
+}