fixup! feat(users): Use getUserObject instead of manually building private User object

Author: artonge

tests/lib/Group/GroupTest.php

@@ -45,10 +45,10 @@ private function newUser($uid, \OC\User\Backend $backend) {
 	 * @return \OC\User\Manager
 	 */
 	protected function getUserManager() {
-		$userManager = $this->getMockBuilder('\OC\User\Manager')
+		$userManager = $this->getMockBuilder(\OC\User\Manager::class)
 			->disableOriginalConstructor()
 			->getMock();
-		$backend = $this->getMockBuilder('\OC\User\Backend')
+		$backend = $this->getMockBuilder(\OC\User\Backend::class)
 			->disableOriginalConstructor()
 			->getMock();
 		$user1 = $this->newUser('user1', $backend);
@@ -61,6 +61,13 @@ protected function getUserManager() {
 				['user2', $user2],
 				['user3', $user3]
 			]);
+		$userManager->expects($this->any())
+			->method('getUserObject')
+			->willReturnMap([
+				['user1', null, $user1],
+				['user2', null, $user2],
+				['user3', null, $user3]
+			]);
 		return $userManager;
 	}