diff --git a/lib/private/Notification/Manager.php b/lib/private/Notification/Manager.php
index 4b57db4bac..c5cad7f2db 100644
--- a/lib/private/Notification/Manager.php
+++ b/lib/private/Notification/Manager.php
@@ -24,13 +24,16 @@
 namespace OC\Notification;
 
 
-use OC\RichObjectStrings\Validator;
 use OCP\Notification\IApp;
 use OCP\Notification\IManager;
 use OCP\Notification\INotification;
 use OCP\Notification\INotifier;
+use OCP\RichObjectStrings\IValidator;
 
 class Manager implements IManager {
+	/** @var IValidator */
+	protected $validator;
+
 	/** @var IApp[] */
 	protected $apps;
 
@@ -49,7 +52,13 @@ class Manager implements IManager {
 	/** @var \Closure[] */
 	protected $notifiersInfoClosures;
 
-	public function __construct() {
+	/**
+	 * Manager constructor.
+	 *
+	 * @param IValidator $validator
+	 */
+	public function __construct(IValidator $validator) {
+		$this->validator = $validator;
 		$this->apps = [];
 		$this->notifiers = [];
 		$this->notifiersInfo = [];
@@ -150,9 +159,7 @@ class Manager implements IManager {
 	 * @since 8.2.0
 	 */
 	public function createNotification() {
-		return new Notification(
-			new Validator()
-		);
+		return new Notification($this->validator);
 	}
 
 	/**
@@ -214,7 +221,6 @@ class Manager implements IManager {
 
 	/**
 	 * @param INotification $notification
-	 * @return null
 	 */
 	public function markProcessed(INotification $notification) {
 		$apps = $this->getApps();
diff --git a/lib/private/RichObjectStrings/Validator.php b/lib/private/RichObjectStrings/Validator.php
index 2729b4a3f1..11d17fef64 100644
--- a/lib/private/RichObjectStrings/Validator.php
+++ b/lib/private/RichObjectStrings/Validator.php
@@ -22,6 +22,7 @@
 namespace OC\RichObjectStrings;
 
 
+use OCP\RichObjectStrings\Definitions;
 use OCP\RichObjectStrings\InvalidObjectExeption;
 use OCP\RichObjectStrings\IValidator;
 
@@ -31,9 +32,9 @@ use OCP\RichObjectStrings\IValidator;
  * @package OCP\RichObjectStrings
  * @since 9.2.0
  */
-class Validator implements IValidator  {
+class Validator implements IValidator {
 
-	/** @var array[] */
+	/** @var Definitions */
 	protected $definitions;
 
 	/** @var array[] */
@@ -41,9 +42,11 @@ class Validator implements IValidator  {
 
 	/**
 	 * Constructor
+	 *
+	 * @param Definitions $definitions
 	 */
-	public function __construct() {
-		$this->definitions = json_decode(file_get_contents(__DIR__ . '/../../public/RichObjectStrings/definitions.json'), true);
+	public function __construct(Definitions $definitions) {
+		$this->definitions = $definitions;
 	}
 
 	/**
@@ -76,11 +79,13 @@ class Validator implements IValidator  {
 	 * @throws InvalidObjectExeption
 	 */
 	protected function validateParameter(array $parameter) {
-		if (!isset($parameter['type']) || !isset($this->definitions[$parameter['type']])) {
+		if (!isset($parameter['type'])) {
 			throw new InvalidObjectExeption('Object type is undefined');
 		}
 
-		$requiredParameters = $this->getRequiredParameters($parameter['type']);
+		$definition = $this->definitions->getDefinition($parameter['type']);
+		$requiredParameters = $this->getRequiredParameters($parameter['type'], $definition);
+
 		$missingKeys = array_diff($requiredParameters, array_keys($parameter));
 		if (!empty($missingKeys)) {
 			throw new InvalidObjectExeption('Object is invalid');
@@ -89,15 +94,16 @@ class Validator implements IValidator  {
 
 	/**
 	 * @param string $type
+	 * @param array $definition
 	 * @return string[]
 	 */
-	protected function getRequiredParameters($type) {
+	protected function getRequiredParameters($type, array $definition) {
 		if (isset($this->requiredParameters[$type])) {
 			return $this->requiredParameters[$type];
 		}
 
 		$this->requiredParameters[$type] = [];
-		foreach ($this->definitions[$type]['parameters'] as $parameter => $data) {
+		foreach ($definition['parameters'] as $parameter => $data) {
 			if ($data['required']) {
 				$this->requiredParameters[$type][] = $parameter;
 			}
diff --git a/lib/private/Server.php b/lib/private/Server.php
index 8f4e7d9ca2..79efeb18d1 100644
--- a/lib/private/Server.php
+++ b/lib/private/Server.php
@@ -72,6 +72,7 @@ use OC\Lock\NoopLockingProvider;
 use OC\Mail\Mailer;
 use OC\Memcache\ArrayCache;
 use OC\Notification\Manager;
+use OC\RichObjectStrings\Validator;
 use OC\Security\Bruteforce\Throttler;
 use OC\Security\CertificateManager;
 use OC\Security\CSP\ContentSecurityPolicyManager;
@@ -659,8 +660,10 @@ class Server extends ServerContainer implements IServerContainer {
 				$c->getDatabaseConnection()
 			);
 		});
-		$this->registerService('NotificationManager', function () {
-			return new Manager();
+		$this->registerService('NotificationManager', function (Server $c) {
+			return new Manager(
+				$c->query(Validator::class)
+			);
 		});
 		$this->registerService('CapabilitiesManager', function (Server $c) {
 			$manager = new \OC\CapabilitiesManager($c->getLogger());
diff --git a/lib/public/RichObjectStrings/Definitions.php b/lib/public/RichObjectStrings/Definitions.php
new file mode 100644
index 0000000000..d3e6b15cf9
--- /dev/null
+++ b/lib/public/RichObjectStrings/Definitions.php
@@ -0,0 +1,296 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\RichObjectStrings;
+
+
+/**
+ * Class Definitions
+ *
+ * @package OCP\RichObjectStrings
+ * @since 9.2.0
+ */
+class Definitions {
+	/**
+	 * @var array
+	 * @since 9.2.0
+	 */
+	public $definitions = [
+		'addressbook' => [
+			'author' => 'Nextcloud',
+			'app' => 'dav',
+			'since' => '9.2.0',
+			'parameters' => [
+				'id' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The id used to identify the addressbook on the instance',
+					'example' => '42',
+				],
+				'name' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The display name of the addressbook which should be used in the visual representation',
+					'example' => 'Contacts',
+				],
+			],
+		],
+		'addressbook-contact' => [
+			'author' => 'Nextcloud',
+			'app' => 'dav',
+			'since' => '9.2.0',
+			'parameters' => [
+				'id' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The id used to identify the contact on the instance',
+					'example' => '42',
+				],
+				'name' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The display name of the contact which should be used in the visual representation',
+					'example' => 'John Doe',
+				],
+			],
+		],
+		'announcement' => [
+			'author' => 'Joas Schilling',
+			'app' => 'announcementcenter',
+			'since' => '9.2.0',
+			'parameters' => [
+				'id' => [
+					'since' => '9.2.0',
+					'required' => true, 'description' => 'The id used to identify the announcement on the instance',
+					'example' => '42',
+				],
+				'name' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The announcement subject which should be used in the visual representation',
+					'example' => 'file.txt',
+				],
+				'link' => [
+					'since' => '9.2.0',
+					'required' => false,
+					'description' => 'The full URL to the file',
+					'example' => 'http://localhost/index.php/apps/announcements/#23',
+				],
+			],
+		],
+		'calendar' => [
+			'author' => 'Nextcloud',
+			'app' => 'dav',
+			'since' => '9.2.0',
+			'parameters' => [
+				'id' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The id used to identify the calendar on the instance',
+					'example' => '42',
+				],
+				'name' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The display name of the calendar which should be used in the visual representation',
+					'example' => 'Personal',
+				],
+			],
+		],
+		'calendar-event' => [
+			'author' => 'Nextcloud',
+			'app' => 'dav',
+			'since' => '9.2.0',
+			'parameters' => [
+				'id' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The id used to identify the event on the instance',
+					'example' => '42',
+				],
+				'name' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The display name of the event which should be used in the visual representation',
+					'example' => 'Workout',
+				],
+			],
+		],
+		'email' => [
+			'author' => 'Nextcloud',
+			'app' => 'sharebymail',
+			'since' => '9.2.0',
+			'parameters' => [
+				'id' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The mail-address used to identify the event on the instance',
+					'example' => 'test@localhost',
+				],
+				'name' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The display name of a matching contact or the email (fallback) which should be used in the visual representation',
+					'example' => 'Foo Bar',
+				],
+			],
+		],
+		'file' => [
+			'author' => 'Nextcloud',
+			'app' => 'dav',
+			'since' => '9.2.0',
+			'parameters' => [
+				'id' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The id used to identify the file on the instance',
+					'example' => '42',
+				],
+				'name' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The file name which should be used in the visual representation',
+					'example' => 'file.txt',
+				],
+				'path' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The full path of the file for the user',
+					'example' => 'path/to/file.txt',
+				],
+				'link' => [
+					'since' => '9.2.0',
+					'required' => false,
+					'description' => 'The full URL to the file',
+					'example' => 'http://localhost/index.php/f/42',
+				],
+			],
+		],
+		'pending-federated-share' => [
+			'author' => 'Nextcloud',
+			'app' => 'dav',
+			'since' => '9.2.0',
+			'parameters' => [
+				'id' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The id used to identify the federated share on the instance',
+					'example' => '42',
+				],
+				'name' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The name of the shared item which should be used in the visual representation',
+					'example' => 'file.txt',
+				],
+			],
+		],
+		'systemtag' => [
+			'author' => 'Nextcloud',
+			'app' => 'core',
+			'since' => '9.2.0',
+			'parameters' => [
+				'id' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The id used to identify the systemtag on the instance',
+					'example' => '23',
+				],
+				'name' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The display name of the systemtag which should be used in the visual representation',
+					'example' => 'Project 1',
+				],
+				'visibility' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'If the user can see the systemtag',
+					'example' => '1',
+				],
+				'assignable' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'If the user can assign the systemtag',
+					'example' => '0',
+				],
+			],
+		],
+		'user' => [
+			'author' => 'Nextcloud',
+			'app' => 'core',
+			'since' => '9.2.0',
+			'parameters' => [
+				'id' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The id used to identify the user on the instance',
+					'example' => 'johndoe',
+				],
+				'name' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The display name of the user which should be used in the visual representation',
+					'example' => 'John Doe',
+				],
+				'server' => [
+					'since' => '9.2.0',
+					'required' => false,
+					'description' => 'The URL of the instance the user lives on',
+					'example' => 'localhost',
+				],
+			],
+		],
+		'user-group' => [
+			'author' => 'Nextcloud',
+			'app' => 'core',
+			'since' => '9.2.0',
+			'parameters' => [
+				'id' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The id used to identify the group on the instance',
+					'example' => 'supportteam',
+				],
+				'name' => [
+					'since' => '9.2.0',
+					'required' => true,
+					'description' => 'The display name of the group which should be used in the visual representation',
+					'example' => 'Support Team',
+				],
+			],
+		],
+	];
+
+	/**
+	 * @param string $type
+	 * @return array
+	 * @throws InvalidObjectExeption
+	 * @since 9.2.0
+	 */
+	public function getDefinition($type) {
+		if (isset($this->definitions[$type])) {
+			return $this->definitions[$type];
+		}
+
+		throw new InvalidObjectExeption('Object type is undefined');
+	}
+}
diff --git a/lib/public/RichObjectStrings/definitions.json b/lib/public/RichObjectStrings/definitions.json
deleted file mode 100644
index 494e96c8f7..0000000000
--- a/lib/public/RichObjectStrings/definitions.json
+++ /dev/null
@@ -1,247 +0,0 @@
-{
-  "addressbook": {
-    "author": "Nextcloud",
-    "app": "dav",
-    "since": "9.2.0",
-    "parameters": {
-      "id": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The id used to identify the addressbook on the instance",
-        "example": "42"
-      },
-      "name": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The display name of the addressbook which should be used in the visual representation",
-        "example": "Contacts"
-      }
-    }
-  },
-  "addressbook-contact": {
-    "author": "Nextcloud",
-    "app": "dav",
-    "since": "9.2.0",
-    "parameters": {
-      "id": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The id used to identify the contact on the instance",
-        "example": "42"
-      },
-      "name": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The display name of the contact which should be used in the visual representation",
-        "example": "John Doe"
-      }
-    }
-  },
-  "announcement": {
-    "author": "Joas Schilling",
-    "app": "announcementcenter",
-    "since": "9.2.0",
-    "parameters": {
-      "id": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The id used to identify the announcement on the instance",
-        "example": "42"
-      },
-      "name": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The announcement subject which should be used in the visual representation",
-        "example": "file.txt"
-      },
-      "link": {
-        "since": "9.2.0",
-        "required": false,
-        "description": "The full URL to the file",
-        "example": "http://localhost/index.php/apps/announcements/#23"
-      }
-    }
-  },
-  "calendar": {
-    "author": "Nextcloud",
-    "app": "dav",
-    "since": "9.2.0",
-    "parameters": {
-      "id": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The id used to identify the calendar on the instance",
-        "example": "42"
-      },
-      "name": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The display name of the calendar which should be used in the visual representation",
-        "example": "Personal"
-      }
-    }
-  },
-  "calendar-event": {
-    "author": "Nextcloud",
-    "app": "dav",
-    "since": "9.2.0",
-    "parameters": {
-      "id": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The id used to identify the event on the instance",
-        "example": "42"
-      },
-      "name": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The display name of the event which should be used in the visual representation",
-        "example": "Workout"
-      }
-    }
-  },
-  "file": {
-    "author": "Nextcloud",
-    "app": "dav",
-    "since": "9.2.0",
-    "parameters": {
-      "id": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The id used to identify the file on the instance",
-        "example": "42"
-      },
-      "name": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The file name which should be used in the visual representation",
-        "example": "file.txt"
-      },
-      "path": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The full path of the file for the user",
-        "example": "path/to/file.txt"
-      },
-      "link": {
-        "since": "9.2.0",
-        "required": false,
-        "description": "The full URL to the file",
-        "example": "http://localhost/index.php/f/42"
-      }
-    }
-  },
-  "pending-federated-share": {
-    "author": "Nextcloud",
-    "app": "dav",
-    "since": "9.2.0",
-    "parameters": {
-      "id": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The id used to identify the federated share on the instance",
-        "example": "42"
-      },
-      "name": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The name of the shared item which should be used in the visual representation",
-        "example": "file.txt"
-      }
-    }
-  },
-  "systemtag": {
-    "author": "Nextcloud",
-    "app": "core",
-    "since": "9.2.0",
-    "parameters": {
-      "id": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The id used to identify the systemtag on the instance",
-        "example": "23"
-      },
-      "name": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The display name of the systemtag which should be used in the visual representation",
-        "example": "Project 1"
-      },
-      "visibility": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "If the user can see the systemtag",
-        "example": "1"
-      },
-      "assignable": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "If the user can assign the systemtag",
-        "example": "0"
-      }
-    }
-  },
-  "user": {
-    "author": "Nextcloud",
-    "app": "core",
-    "since": "9.2.0",
-    "parameters": {
-      "id": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The id used to identify the user on the instance",
-        "example": "johndoe"
-      },
-      "name": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The display name of the user which should be used in the visual representation",
-        "example": "John Doe"
-      },
-      "server": {
-        "since": "9.2.0",
-        "required": false,
-        "description": "The URL of the instance the user lives on",
-        "example": "localhost"
-      }
-    }
-  },
-  "user-group": {
-    "author": "Nextcloud",
-    "app": "core",
-    "since": "9.2.0",
-    "parameters": {
-      "id": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The id used to identify the group on the instance",
-        "example": "supportteam"
-      },
-      "name": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The display name of the group which should be used in the visual representation",
-        "example": "Support Team"
-      }
-    }
-  },
-  "email": {
-    "author": "Nextcloud",
-    "app": "sharebymail",
-    "since": "9.2.0",
-    "parameters": {
-      "id": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The mail-address used to identify the event on the instance",
-        "example": "test@localhost"
-      },
-      "name": {
-        "since": "9.2.0",
-        "required": true,
-        "description": "The display name of a matching contact or the email (fallback) which should be used in the visual representation",
-        "example": "Foo Bar"
-      }
-    }
-  }
-}
diff --git a/tests/lib/Notification/ManagerTest.php b/tests/lib/Notification/ManagerTest.php
index 4410781bc3..e280838424 100644
--- a/tests/lib/Notification/ManagerTest.php
+++ b/tests/lib/Notification/ManagerTest.php
@@ -23,6 +23,7 @@ namespace Test\Notification;
 
 use OC\Notification\Manager;
 use OCP\Notification\IManager;
+use OCP\RichObjectStrings\IValidator;
 use Test\TestCase;
 
 class ManagerTest extends TestCase {
@@ -31,7 +32,8 @@ class ManagerTest extends TestCase {
 
 	public function setUp() {
 		parent::setUp();
-		$this->manager = new Manager();
+		$validator = $this->createMock(IValidator::class);
+		$this->manager = new Manager($validator);
 	}
 
 	public function testRegisterApp() {
diff --git a/tests/lib/RichObjectStrings/DefinitionsTest.php b/tests/lib/RichObjectStrings/DefinitionsTest.php
new file mode 100644
index 0000000000..e0d400bff2
--- /dev/null
+++ b/tests/lib/RichObjectStrings/DefinitionsTest.php
@@ -0,0 +1,93 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Test\RichObjectStrings;
+
+
+use OCP\RichObjectStrings\Definitions;
+use Test\TestCase;
+
+class DefinitionsTest extends TestCase {
+
+	public function dataGetDefinition() {
+		$definitions = new Definitions();
+		$testsuite = [];
+		foreach ($definitions->definitions as $type => $definition) {
+			$testsuite[] = [$type, $definition];
+		}
+		return $testsuite;
+	}
+
+	/**
+	 * @expectedException \OCP\RichObjectStrings\InvalidObjectExeption
+	 * @expectedExceptionMessage Object type is undefined
+	 */
+	public function testGetDefinitionNotExisting() {
+		$definitions = new Definitions();
+		$definitions->getDefinition('NotExistingType');
+	}
+
+	/**
+	 * @dataProvider dataGetDefinition
+	 * @param string $type
+	 * @param array $expected
+	 */
+	public function testGetDefinition($type, array $expected) {
+		$definitions = new Definitions();
+		$definition = $definitions->getDefinition($type);
+
+		$this->assertEquals($expected, $definition);
+		$this->assertArrayHasKey('author', $definition);
+		$this->assertNotEquals('', $definition['author'], 'Author of definition must not be empty');
+		$this->assertArrayHasKey('app', $definition);
+		$this->assertNotEquals('', $definition['app'], 'App of definition must not be empty');
+		$this->assertArrayHasKey('since', $definition);
+		$this->assertNotEmpty($definition['since'], 'Since of definition must not be empty');
+		$this->assertArrayHasKey('parameters', $definition);
+		$this->assertTrue(is_array($definition['parameters']), 'Parameters of definition must be of type array');
+		$this->assertNotEmpty($definition['parameters'], 'Parameters of definition must not be empty');
+
+
+		$this->assertArrayHasKey('id', $definition['parameters'], 'Parameter ID must be defined');
+		$this->assertArrayHasKey('name', $definition['parameters'], 'Parameter name must be defined');
+
+		foreach ($definition['parameters'] as $parameter => $data) {
+			$this->validateParameter($parameter, $data);
+		}
+	}
+
+	public function validateParameter($parameter, $data) {
+		$this->assertTrue(is_array($data), 'Parameter ' . $parameter . ' is invalid');
+		$this->assertArrayHasKey('since', $data);
+		$this->assertNotEmpty($data['since'], 'Since of parameter ' . $parameter . ' must not be empty');
+		$this->assertArrayHasKey('required', $data);
+		$this->assertTrue(is_bool($data['required']), 'Required of parameter ' . $parameter . ' must be a boolean');
+		if ($parameter === 'id' || $parameter === 'name') {
+			$this->assertTrue($data['required'], 'Parameter ' . $parameter . ' must be required');
+		}
+
+		$this->assertArrayHasKey('description', $data);
+		$this->assertNotEquals('', $data['description'], 'Description of parameter ' . $parameter . ' must not be empty');
+		$this->assertArrayHasKey('example', $data);
+		$this->assertNotEquals('', $data['example'], 'Example of parameter ' . $parameter . ' must not be empty');
+
+	}
+}
diff --git a/tests/lib/RichObjectStrings/ValidatorTest.php b/tests/lib/RichObjectStrings/ValidatorTest.php
index b97388ab8e..f18d1bdd90 100644
--- a/tests/lib/RichObjectStrings/ValidatorTest.php
+++ b/tests/lib/RichObjectStrings/ValidatorTest.php
@@ -23,12 +23,13 @@ namespace Test\RichObjectStrings;
 
 
 use OC\RichObjectStrings\Validator;
+use OCP\RichObjectStrings\Definitions;
 use Test\TestCase;
 
 class ValidatorTest extends TestCase {
 
 	public function test() {
-		$v = new Validator();
+		$v = new Validator(new Definitions());
 		$v->validate('test', []);
 		$v->validate('test {string1} test {foo} test {bar}.', [
 			'string1' => [