invalidates user when plugin reported deletion success

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

apps/user_ldap/lib/User_LDAP.php

@@ -382,18 +382,21 @@ class User_LDAP extends BackendUtility implements \OCP\IUserBackend, \OCP\UserIn
 	*/
 	public function deleteUser($uid) {
 		if ($this->userPluginManager->canDeleteUser()) {
-			return $this->userPluginManager->deleteUser($uid);
+			$status = $this->userPluginManager->deleteUser($uid);
+			if($status === false) {
+				return false;
+			}
 		}
 
 		$marked = $this->ocConfig->getUserValue($uid, 'user_ldap', 'isDeleted', 0);
 		if((int)$marked === 0) {
 			\OC::$server->getLogger()->notice(
 				'User '.$uid . ' is not marked as deleted, not cleaning up.',
-				array('app' => 'user_ldap'));
+				['app' => 'user_ldap']);
 			return false;
 		}
 		\OC::$server->getLogger()->info('Cleaning up after user ' . $uid,
-			array('app' => 'user_ldap'));
+			['app' => 'user_ldap']);
 
 		$this->access->getUserMapper()->unmap($uid); // we don't emit unassign signals here, since it is implicit to delete signals fired from core
 		$this->access->userManager->invalidate($uid);

apps/user_ldap/tests/User_LDAPTest.php

@@ -342,9 +342,27 @@ class User_LDAPTest extends TestCase {
 		$this->pluginManager->expects($this->once())
 			->method('deleteUser')
 			->with('uid')
-			->willReturn('result');
+			->willReturn(true);
 
-		$this->assertEquals($this->backend->deleteUser('uid'),'result');
+		$this->config->expects($this->once())
+			->method('getUserValue')
+			->with('uid', 'user_ldap', 'isDeleted', 0)
+			->willReturn(1);
+
+		$mapper = $this->createMock(UserMapping::class);
+		$mapper->expects($this->once())
+			->method('unmap')
+			->with('uid');
+
+		$this->access->expects($this->atLeastOnce())
+			->method('getUserMapper')
+			->willReturn($mapper);
+
+		$this->userManager->expects($this->once())
+			->method('invalidate')
+			->with('uid');
+
+		$this->assertEquals(true, $this->backend->deleteUser('uid'));
 	}
 
 	/**