diff --git a/apps/dav/tests/unit/CardDAV/AddressBookTest.php b/apps/dav/tests/unit/CardDAV/AddressBookTest.php
index 8a608e277e..22992d564f 100644
--- a/apps/dav/tests/unit/CardDAV/AddressBookTest.php
+++ b/apps/dav/tests/unit/CardDAV/AddressBookTest.php
@@ -25,6 +25,7 @@ namespace OCA\DAV\Tests\unit\CardDAV;
 
 use OCA\DAV\CardDAV\AddressBook;
 use OCA\DAV\CardDAV\CardDavBackend;
+use OCP\IL10N;
 use Sabre\DAV\PropPatch;
 use Test\TestCase;
 
@@ -40,9 +41,11 @@ class AddressBookTest extends TestCase {
 		$calendarInfo = [
 			'{http://owncloud.org/ns}owner-principal' => 'user1',
 			'principaluri' => 'user2',
-			'id' => 666
+			'id' => 666,
+			'uri' => 'default',
 		];
-		$c = new AddressBook($backend, $calendarInfo);
+		$l = $this->createMock(IL10N::class);
+		$c = new AddressBook($backend, $calendarInfo, $l);
 		$c->delete();
 	}
 
@@ -59,9 +62,11 @@ class AddressBookTest extends TestCase {
 		$calendarInfo = [
 			'{http://owncloud.org/ns}owner-principal' => 'user1',
 			'principaluri' => 'user2',
-			'id' => 666
+			'id' => 666,
+			'uri' => 'default',
 		];
-		$c = new AddressBook($backend, $calendarInfo);
+		$l = $this->createMock(IL10N::class);
+		$c = new AddressBook($backend, $calendarInfo, $l);
 		$c->delete();
 	}
 
@@ -74,9 +79,11 @@ class AddressBookTest extends TestCase {
 		$calendarInfo = [
 			'{http://owncloud.org/ns}owner-principal' => 'user1',
 			'principaluri' => 'user2',
-			'id' => 666
+			'id' => 666,
+			'uri' => 'default',
 		];
-		$c = new AddressBook($backend, $calendarInfo);
+		$l = $this->createMock(IL10N::class);
+		$c = new AddressBook($backend, $calendarInfo, $l);
 		$c->propPatch(new PropPatch([]));
 	}
 
@@ -98,7 +105,8 @@ class AddressBookTest extends TestCase {
 		if ($hasOwnerSet) {
 			$calendarInfo['{http://owncloud.org/ns}owner-principal'] = 'user1';
 		}
-		$c = new AddressBook($backend, $calendarInfo);
+		$l = $this->createMock(IL10N::class);
+		$c = new AddressBook($backend, $calendarInfo, $l);
 		$acl = $c->getACL();
 		$childAcl = $c->getChildACL();
 
diff --git a/apps/dav/tests/unit/CardDAV/CardDavBackendTest.php b/apps/dav/tests/unit/CardDAV/CardDavBackendTest.php
index cf5972f79b..890b70d6af 100644
--- a/apps/dav/tests/unit/CardDAV/CardDavBackendTest.php
+++ b/apps/dav/tests/unit/CardDAV/CardDavBackendTest.php
@@ -33,6 +33,7 @@ use OCA\DAV\CardDAV\CardDavBackend;
 use OCA\DAV\Connector\Sabre\Principal;
 use OCP\DB\QueryBuilder\IQueryBuilder;
 use OCP\IDBConnection;
+use OCP\IL10N;
 use Sabre\DAV\PropPatch;
 use Sabre\VObject\Component\VCard;
 use Sabre\VObject\Property\Text;
@@ -146,7 +147,8 @@ class CardDavBackendTest extends TestCase {
 		$this->backend->createAddressBook(self::UNIT_TEST_USER, 'Example', []);
 		$books = $this->backend->getAddressBooksForUser(self::UNIT_TEST_USER);
 		$this->assertEquals(1, count($books));
-		$addressBook = new AddressBook($this->backend, $books[0]);
+		$l = $this->createMock(IL10N::class);
+		$addressBook = new AddressBook($this->backend, $books[0], $l);
 		$this->backend->updateShares($addressBook, [
 			[
 				'href' => 'principal:' . self::UNIT_TEST_USER1,
@@ -329,7 +331,8 @@ class CardDavBackendTest extends TestCase {
 		$books = $this->backend->getAddressBooksForUser(self::UNIT_TEST_USER);
 		$this->assertEquals(1, count($books));
 
-		$exampleBook = new AddressBook($this->backend, $books[0]);
+		$l = $this->createMock(IL10N::class);
+		$exampleBook = new AddressBook($this->backend, $books[0], $l);
 		$this->backend->updateShares($exampleBook, [['href' => 'principal:principals/best-friend']], []);
 
 		$shares = $this->backend->getShares($exampleBook->getResourceId());
diff --git a/apps/dav/tests/unit/CardDAV/ContactsManagerTest.php b/apps/dav/tests/unit/CardDAV/ContactsManagerTest.php
index 6859d0686d..062ef72dbf 100644
--- a/apps/dav/tests/unit/CardDAV/ContactsManagerTest.php
+++ b/apps/dav/tests/unit/CardDAV/ContactsManagerTest.php
@@ -27,6 +27,7 @@ namespace OCA\DAV\Tests\unit\CardDAV;
 use OCA\DAV\CardDAV\CardDavBackend;
 use OCA\DAV\CardDAV\ContactsManager;
 use OCP\Contacts\IManager;
+use OCP\IL10N;
 use Test\TestCase;
 
 class ContactsManagerTest extends TestCase {
@@ -38,10 +39,11 @@ class ContactsManagerTest extends TestCase {
 		/** @var CardDavBackend | \PHPUnit_Framework_MockObject_MockObject $backEnd */
 		$backEnd = $this->getMockBuilder('OCA\DAV\CardDAV\CardDavBackend')->disableOriginalConstructor()->getMock();
 		$backEnd->method('getAddressBooksForUser')->willReturn([
-				[]
+				['uri' => 'default'],
 			]);
 
-		$app = new ContactsManager($backEnd);
+		$l = $this->createMock(IL10N::class);
+		$app = new ContactsManager($backEnd, $l);
 		$app->setupContactsProvider($cm, 'user01', $urlGenerator);
 	}
 }