Merge pull request #3995 from owncloud/groups

Refactoring of group management code

3 files changed, 691 insertions, 46 deletions

diff --git a/tests/lib/group.php b/tests/lib/group.php
index 9128bd7ddce..d2c9ce46148 100644
--- a/tests/lib/group.php
+++ b/tests/lib/group.php
@@ -1,56 +1,61 @@
 <?php
 /**
-* ownCloud
-*
-* @author Robin Appelman
-* @author Bernhard Posselt
-* @copyright 2012 Robin Appelman icewind@owncloud.com
-* @copyright 2012 Bernhard Posselt nukeawhale@gmail.com
-*
-* This library is free software; you can redistribute it and/or
-* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
-* License as published by the Free Software Foundation; either
-* version 3 of the License, or any later version.
-*
-* This library 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 library.  If not, see <http://www.gnu.org/licenses/>.
-*
-*/
+ * ownCloud
+ *
+ * @author Robin Appelman
+ * @author Bernhard Posselt
+ * @copyright 2012 Robin Appelman icewind@owncloud.com
+ * @copyright 2012 Bernhard Posselt nukeawhale@gmail.com
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library 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 library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
 
 class Test_Group extends PHPUnit_Framework_TestCase {
 	function setUp() {
 		OC_Group::clearBackends();
+		OC_User::clearBackends();
 	}
 
 	function testSingleBackend() {
+		$userBackend = new \OC_User_Dummy();
+		\OC_User::getManager()->registerBackend($userBackend);
 		OC_Group::useBackend(new OC_Group_Dummy());
-		
-		$group1=uniqid();
-		$group2=uniqid();
+
+		$group1 = uniqid();
+		$group2 = uniqid();
 		OC_Group::createGroup($group1);
 		OC_Group::createGroup($group2);
 
-		$user1=uniqid();
-		$user2=uniqid();
+		$user1 = uniqid();
+		$user2 = uniqid();
+		$userBackend->createUser($user1, '');
+		$userBackend->createUser($user2, '');
 
 		$this->assertFalse(OC_Group::inGroup($user1, $group1));
 		$this->assertFalse(OC_Group::inGroup($user2, $group1));
 		$this->assertFalse(OC_Group::inGroup($user1, $group2));
 		$this->assertFalse(OC_Group::inGroup($user2, $group2));
 
-		$this->assertTrue((bool)OC_Group::addToGroup($user1, $group1));
+		$this->assertTrue(OC_Group::addToGroup($user1, $group1));
 
 		$this->assertTrue(OC_Group::inGroup($user1, $group1));
 		$this->assertFalse(OC_Group::inGroup($user2, $group1));
 		$this->assertFalse(OC_Group::inGroup($user1, $group2));
 		$this->assertFalse(OC_Group::inGroup($user2, $group2));
 
-		$this->assertFalse((bool)OC_Group::addToGroup($user1, $group1));
+		$this->assertTrue(OC_Group::addToGroup($user1, $group1));
 
 		$this->assertEquals(array($user1), OC_Group::usersInGroup($group1));
 		$this->assertEquals(array(), OC_Group::usersInGroup($group2));
@@ -65,37 +70,37 @@ class Test_Group extends PHPUnit_Framework_TestCase {
 	}
 
 
-	public function testNoEmptyGIDs(){
+	public function testNoEmptyGIDs() {
 		OC_Group::useBackend(new OC_Group_Dummy());
 		$emptyGroup = null;
 
-		$this->assertEquals(false, OC_Group::createGroup($emptyGroup));
+		$this->assertFalse(OC_Group::createGroup($emptyGroup));
 	}
 
 
-	public function testNoGroupsTwice(){
+	public function testNoGroupsTwice() {
 		OC_Group::useBackend(new OC_Group_Dummy());
 		$group = uniqid();
 		OC_Group::createGroup($group);
 
 		$groupCopy = $group;
 
-		$this->assertEquals(false, OC_Group::createGroup($groupCopy));
+		OC_Group::createGroup($groupCopy);
 		$this->assertEquals(array($group), OC_Group::getGroups());
 	}
 
 
-	public function testDontDeleteAdminGroup(){
+	public function testDontDeleteAdminGroup() {
 		OC_Group::useBackend(new OC_Group_Dummy());
 		$adminGroup = 'admin';
 		OC_Group::createGroup($adminGroup);
 
-		$this->assertEquals(false, OC_Group::deleteGroup($adminGroup));
+		$this->assertFalse(OC_Group::deleteGroup($adminGroup));
 		$this->assertEquals(array($adminGroup), OC_Group::getGroups());
 	}
 
 
-	public function testDontAddUserToNonexistentGroup(){
+	public function testDontAddUserToNonexistentGroup() {
 		OC_Group::useBackend(new OC_Group_Dummy());
 		$groupNonExistent = 'notExistent';
 		$user = uniqid();
@@ -105,8 +110,11 @@ class Test_Group extends PHPUnit_Framework_TestCase {
 	}
 
 
-	public function testUsersInGroup(){
+	public function testUsersInGroup() {
 		OC_Group::useBackend(new OC_Group_Dummy());
+		$userBackend = new \OC_User_Dummy();
+		\OC_User::getManager()->registerBackend($userBackend);
+
 		$group1 = uniqid();
 		$group2 = uniqid();
 		$group3 = uniqid();
@@ -117,27 +125,32 @@ class Test_Group extends PHPUnit_Framework_TestCase {
 		OC_Group::createGroup($group2);
 		OC_Group::createGroup($group3);
 
+		$userBackend->createUser($user1, '');
+		$userBackend->createUser($user2, '');
+		$userBackend->createUser($user3, '');
+
 		OC_Group::addToGroup($user1, $group1);
 		OC_Group::addToGroup($user2, $group1);
 		OC_Group::addToGroup($user3, $group1);
 		OC_Group::addToGroup($user3, $group2);
 
 		$this->assertEquals(array($user1, $user2, $user3),
-					OC_Group::usersInGroups(array($group1, $group2, $group3)));
+			OC_Group::usersInGroups(array($group1, $group2, $group3)));
 
 		// FIXME: needs more parameter variation
 	}
 
 
-
 	function testMultiBackend() {
-		$backend1=new OC_Group_Dummy();
-		$backend2=new OC_Group_Dummy();
+		$userBackend = new \OC_User_Dummy();
+		\OC_User::getManager()->registerBackend($userBackend);
+		$backend1 = new OC_Group_Dummy();
+		$backend2 = new OC_Group_Dummy();
 		OC_Group::useBackend($backend1);
 		OC_Group::useBackend($backend2);
 
-		$group1=uniqid();
-		$group2=uniqid();
+		$group1 = uniqid();
+		$group2 = uniqid();
 		OC_Group::createGroup($group1);
 
 		//groups should be added to the first registered backend
@@ -154,20 +167,23 @@ class Test_Group extends PHPUnit_Framework_TestCase {
 		$this->assertTrue(OC_Group::groupExists($group1));
 		$this->assertTrue(OC_Group::groupExists($group2));
 
-		$user1=uniqid();
-		$user2=uniqid();
+		$user1 = uniqid();
+		$user2 = uniqid();
+
+		$userBackend->createUser($user1, '');
+		$userBackend->createUser($user2, '');
 
 		$this->assertFalse(OC_Group::inGroup($user1, $group1));
 		$this->assertFalse(OC_Group::inGroup($user2, $group1));
 
 
-		$this->assertTrue((bool)OC_Group::addToGroup($user1, $group1));
+		$this->assertTrue(OC_Group::addToGroup($user1, $group1));
 
 		$this->assertTrue(OC_Group::inGroup($user1, $group1));
 		$this->assertFalse(OC_Group::inGroup($user2, $group1));
 		$this->assertFalse($backend2->inGroup($user1, $group1));
 
-		$this->assertFalse((bool)OC_Group::addToGroup($user1, $group1));
+		OC_Group::addToGroup($user1, $group1);
 
 		$this->assertEquals(array($user1), OC_Group::usersInGroup($group1));
 
diff --git a/tests/lib/group/group.php b/tests/lib/group/group.php
new file mode 100644
index 00000000000..75e975d9e65
--- /dev/null
+++ b/tests/lib/group/group.php
@@ -0,0 +1,316 @@
+<?php
+
+/**
+ * Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace Test\Group;
+
+use OC\User\User;
+
+class Group extends \PHPUnit_Framework_TestCase {
+	/**
+	 * @return \PHPUnit_Framework_MockObject_MockObject | \OC\User\Manager
+	 */
+	protected function getUserManager() {
+		$userManager = $this->getMock('\OC\User\Manager');
+		$user1 = new User('user1', null);
+		$user2 = new User('user2', null);
+		$user3 = new User('user3', null);
+		$userManager->expects($this->any())
+			->method('get')
+			->will($this->returnValueMap(array(
+				array('user1', $user1),
+				array('user2', $user2),
+				array('user3', $user3)
+			)));
+		return $userManager;
+	}
+
+	public function testGetUsersSingleBackend() {
+		$backend = $this->getMock('OC_Group_Database');
+		$userManager = $this->getUserManager();
+		$group = new \OC\Group\Group('group1', array($backend), $userManager);
+
+		$backend->expects($this->once())
+			->method('usersInGroup')
+			->with('group1')
+			->will($this->returnValue(array('user1', 'user2')));
+
+		$users = $group->getUsers();
+
+		$this->assertEquals(2, count($users));
+		$user1 = $users[0];
+		$user2 = $users[1];
+		$this->assertEquals('user1', $user1->getUID());
+		$this->assertEquals('user2', $user2->getUID());
+	}
+
+	public function testGetUsersMultipleBackends() {
+		$backend1 = $this->getMock('OC_Group_Database');
+		$backend2 = $this->getMock('OC_Group_Database');
+		$userManager = $this->getUserManager();
+		$group = new \OC\Group\Group('group1', array($backend1, $backend2), $userManager);
+
+		$backend1->expects($this->once())
+			->method('usersInGroup')
+			->with('group1')
+			->will($this->returnValue(array('user1', 'user2')));
+
+		$backend2->expects($this->once())
+			->method('usersInGroup')
+			->with('group1')
+			->will($this->returnValue(array('user2', 'user3')));
+
+		$users = $group->getUsers();
+
+		$this->assertEquals(3, count($users));
+		$user1 = $users[0];
+		$user2 = $users[1];
+		$user3 = $users[2];
+		$this->assertEquals('user1', $user1->getUID());
+		$this->assertEquals('user2', $user2->getUID());
+		$this->assertEquals('user3', $user3->getUID());
+	}
+
+	public function testInGroupSingleBackend() {
+		$backend = $this->getMock('OC_Group_Database');
+		$userManager = $this->getUserManager();
+		$group = new \OC\Group\Group('group1', array($backend), $userManager);
+
+		$backend->expects($this->once())
+			->method('inGroup')
+			->with('user1', 'group1')
+			->will($this->returnValue(true));
+
+		$this->assertTrue($group->inGroup(new User('user1', null)));
+	}
+
+	public function testInGroupMultipleBackends() {
+		$backend1 = $this->getMock('OC_Group_Database');
+		$backend2 = $this->getMock('OC_Group_Database');
+		$userManager = $this->getUserManager();
+		$group = new \OC\Group\Group('group1', array($backend1, $backend2), $userManager);
+
+		$backend1->expects($this->once())
+			->method('inGroup')
+			->with('user1', 'group1')
+			->will($this->returnValue(false));
+
+		$backend2->expects($this->once())
+			->method('inGroup')
+			->with('user1', 'group1')
+			->will($this->returnValue(true));
+
+		$this->assertTrue($group->inGroup(new User('user1', null)));
+	}
+
+	public function testAddUser() {
+		$backend = $this->getMock('OC_Group_Database');
+		$userManager = $this->getUserManager();
+		$group = new \OC\Group\Group('group1', array($backend), $userManager);
+
+		$backend->expects($this->once())
+			->method('inGroup')
+			->with('user1', 'group1')
+			->will($this->returnValue(false));
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(true));
+
+		$backend->expects($this->once())
+			->method('addToGroup')
+			->with('user1', 'group1');
+
+		$group->addUser(new User('user1', null));
+	}
+
+	public function testAddUserAlreadyInGroup() {
+		$backend = $this->getMock('OC_Group_Database');
+		$userManager = $this->getUserManager();
+		$group = new \OC\Group\Group('group1', array($backend), $userManager);
+
+		$backend->expects($this->once())
+			->method('inGroup')
+			->with('user1', 'group1')
+			->will($this->returnValue(true));
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(true));
+
+		$backend->expects($this->never())
+			->method('addToGroup');
+
+		$group->addUser(new User('user1', null));
+	}
+
+	public function testRemoveUser() {
+		$backend = $this->getMock('OC_Group_Database');
+		$userManager = $this->getUserManager();
+		$group = new \OC\Group\Group('group1', array($backend), $userManager);
+
+		$backend->expects($this->once())
+			->method('inGroup')
+			->with('user1', 'group1')
+			->will($this->returnValue(true));
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(true));
+
+		$backend->expects($this->once())
+			->method('removeFromGroup')
+			->with('user1', 'group1');
+
+		$group->removeUser(new User('user1', null));
+	}
+
+	public function testRemoveUserNotInGroup() {
+		$backend = $this->getMock('OC_Group_Database');
+		$userManager = $this->getUserManager();
+		$group = new \OC\Group\Group('group1', array($backend), $userManager);
+
+		$backend->expects($this->once())
+			->method('inGroup')
+			->with('user1', 'group1')
+			->will($this->returnValue(false));
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(true));
+
+		$backend->expects($this->never())
+			->method('removeFromGroup');
+
+		$group->removeUser(new User('user1', null));
+	}
+
+	public function testRemoveUserMultipleBackends() {
+		$backend1 = $this->getMock('OC_Group_Database');
+		$backend2 = $this->getMock('OC_Group_Database');
+		$userManager = $this->getUserManager();
+		$group = new \OC\Group\Group('group1', array($backend1, $backend2), $userManager);
+
+		$backend1->expects($this->once())
+			->method('inGroup')
+			->with('user1', 'group1')
+			->will($this->returnValue(true));
+		$backend1->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(true));
+
+		$backend1->expects($this->once())
+			->method('removeFromGroup')
+			->with('user1', 'group1');
+
+		$backend2->expects($this->once())
+			->method('inGroup')
+			->with('user1', 'group1')
+			->will($this->returnValue(true));
+		$backend2->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(true));
+
+		$backend2->expects($this->once())
+			->method('removeFromGroup')
+			->with('user1', 'group1');
+
+		$group->removeUser(new User('user1', null));
+	}
+
+	public function testSearchUsers() {
+		$backend = $this->getMock('OC_Group_Database');
+		$userManager = $this->getUserManager();
+		$group = new \OC\Group\Group('group1', array($backend), $userManager);
+
+		$backend->expects($this->once())
+			->method('usersInGroup')
+			->with('group1', '2')
+			->will($this->returnValue(array('user2')));
+
+		$users = $group->searchUsers('2');
+
+		$this->assertEquals(1, count($users));
+		$user2 = $users[0];
+		$this->assertEquals('user2', $user2->getUID());
+	}
+
+	public function testSearchUsersMultipleBackends() {
+		$backend1 = $this->getMock('OC_Group_Database');
+		$backend2 = $this->getMock('OC_Group_Database');
+		$userManager = $this->getUserManager();
+		$group = new \OC\Group\Group('group1', array($backend1, $backend2), $userManager);
+
+		$backend1->expects($this->once())
+			->method('usersInGroup')
+			->with('group1', '2')
+			->will($this->returnValue(array('user2')));
+		$backend2->expects($this->once())
+			->method('usersInGroup')
+			->with('group1', '2')
+			->will($this->returnValue(array('user2')));
+
+		$users = $group->searchUsers('2');
+
+		$this->assertEquals(1, count($users));
+		$user2 = $users[0];
+		$this->assertEquals('user2', $user2->getUID());
+	}
+
+	public function testSearchUsersLimitAndOffset() {
+		$backend = $this->getMock('OC_Group_Database');
+		$userManager = $this->getUserManager();
+		$group = new \OC\Group\Group('group1', array($backend), $userManager);
+
+		$backend->expects($this->once())
+			->method('usersInGroup')
+			->with('group1', 'user', 1, 1)
+			->will($this->returnValue(array('user2')));
+
+		$users = $group->searchUsers('user', 1, 1);
+
+		$this->assertEquals(1, count($users));
+		$user2 = $users[0];
+		$this->assertEquals('user2', $user2->getUID());
+	}
+
+	public function testSearchUsersMultipleBackendsLimitAndOffset() {
+		$backend1 = $this->getMock('OC_Group_Database');
+		$backend2 = $this->getMock('OC_Group_Database');
+		$userManager = $this->getUserManager();
+		$group = new \OC\Group\Group('group1', array($backend1, $backend2), $userManager);
+
+		$backend1->expects($this->once())
+			->method('usersInGroup')
+			->with('group1', 'user', 2, 1)
+			->will($this->returnValue(array('user2')));
+		$backend2->expects($this->once())
+			->method('usersInGroup')
+			->with('group1', 'user', 1, 0)
+			->will($this->returnValue(array('user1')));
+
+		$users = $group->searchUsers('user', 2, 1);
+
+		$this->assertEquals(2, count($users));
+		$user2 = $users[0];
+		$user1 = $users[1];
+		$this->assertEquals('user2', $user2->getUID());
+		$this->assertEquals('user1', $user1->getUID());
+	}
+
+	public function testDelete() {
+		$backend = $this->getMock('OC_Group_Database');
+		$userManager = $this->getUserManager();
+		$group = new \OC\Group\Group('group1', array($backend), $userManager);
+
+		$backend->expects($this->once())
+			->method('deleteGroup')
+			->with('group1');
+		$backend->expects($this->any())
+			->method('implementsActions')
+			->will($this->returnValue(true));
+
+		$group->delete();
+	}
+}
diff --git a/tests/lib/group/manager.php b/tests/lib/group/manager.php
new file mode 100644
index 00000000000..9d3adf51a0c
--- /dev/null
+++ b/tests/lib/group/manager.php
@@ -0,0 +1,313 @@
+<?php
+
+/**
+ * Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace Test\Group;
+
+use OC\User\User;
+
+class Manager extends \PHPUnit_Framework_TestCase {
+	public function testGet() {
+		/**
+		 * @var \PHPUnit_Framework_MockObject_MockObject | \OC_Group_Backend $backend
+		 */
+		$backend = $this->getMock('\OC_Group_Database');
+		$backend->expects($this->any())
+			->method('groupExists')
+			->with('group1')
+			->will($this->returnValue(true));
+
+		/**
+		 * @var \OC\User\Manager $userManager
+		 */
+		$userManager = $this->getMock('\OC\User\Manager');
+		$manager = new \OC\Group\Manager($userManager);
+		$manager->addBackend($backend);
+
+		$group = $manager->get('group1');
+		$this->assertNotNull($group);
+		$this->assertEquals('group1', $group->getGID());
+	}
+
+	public function testGetNoBackend() {
+		/**
+		 * @var \OC\User\Manager $userManager
+		 */
+		$userManager = $this->getMock('\OC\User\Manager');
+		$manager = new \OC\Group\Manager($userManager);
+
+		$this->assertNull($manager->get('group1'));
+	}
+
+	public function testGetNotExists() {
+		/**
+		 * @var \PHPUnit_Framework_MockObject_MockObject | \OC_Group_Backend $backend
+		 */
+		$backend = $this->getMock('\OC_Group_Database');
+		$backend->expects($this->once())
+			->method('groupExists')
+			->with('group1')
+			->will($this->returnValue(false));
+
+		/**
+		 * @var \OC\User\Manager $userManager
+		 */
+		$userManager = $this->getMock('\OC\User\Manager');
+		$manager = new \OC\Group\Manager($userManager);
+		$manager->addBackend($backend);
+
+		$this->assertNull($manager->get('group1'));
+	}
+
+	public function testGetDeleted() {
+		$backend = new \OC_Group_Dummy();
+		$backend->createGroup('group1');
+
+		/**
+		 * @var \OC\User\Manager $userManager
+		 */
+		$userManager = $this->getMock('\OC\User\Manager');
+		$manager = new \OC\Group\Manager($userManager);
+		$manager->addBackend($backend);
+
+		$group = $manager->get('group1');
+		$group->delete();
+		$this->assertNull($manager->get('group1'));
+	}
+
+	public function testGetMultipleBackends() {
+		/**
+		 * @var \PHPUnit_Framework_MockObject_MockObject | \OC_Group_Backend $backend1
+		 */
+		$backend1 = $this->getMock('\OC_Group_Database');
+		$backend1->expects($this->any())
+			->method('groupExists')
+			->with('group1')
+			->will($this->returnValue(false));
+
+		/**
+		 * @var \PHPUnit_Framework_MockObject_MockObject | \OC_Group_Backend $backend2
+		 */
+		$backend2 = $this->getMock('\OC_Group_Database');
+		$backend2->expects($this->any())
+			->method('groupExists')
+			->with('group1')
+			->will($this->returnValue(true));
+
+		/**
+		 * @var \OC\User\Manager $userManager
+		 */
+		$userManager = $this->getMock('\OC\User\Manager');
+		$manager = new \OC\Group\Manager($userManager);
+		$manager->addBackend($backend1);
+		$manager->addBackend($backend2);
+
+		$group = $manager->get('group1');
+		$this->assertNotNull($group);
+		$this->assertEquals('group1', $group->getGID());
+	}
+
+	public function testCreate() {
+		/**
+		 * @var \PHPUnit_Framework_MockObject_MockObject | \OC_Group_Backend $backend
+		 */
+		$backend = $this->getMock('\OC_Group_Database');
+		$backend->expects($this->any())
+			->method('groupExists')
+			->with('group1')
+			->will($this->returnValue(false));
+		$backend->expects($this->once())
+			->method('implementsActions')
+			->will($this->returnValue(true));
+		$backend->expects($this->once())
+			->method('createGroup');
+
+		/**
+		 * @var \OC\User\Manager $userManager
+		 */
+		$userManager = $this->getMock('\OC\User\Manager');
+		$manager = new \OC\Group\Manager($userManager);
+		$manager->addBackend($backend);
+
+		$group = $manager->createGroup('group1');
+		$this->assertEquals('group1', $group->getGID());
+	}
+
+	public function testCreateExists() {
+		/**
+		 * @var \PHPUnit_Framework_MockObject_MockObject | \OC_Group_Backend $backend
+		 */
+		$backend = $this->getMock('\OC_Group_Database');
+		$backend->expects($this->any())
+			->method('groupExists')
+			->with('group1')
+			->will($this->returnValue(true));
+		$backend->expects($this->never())
+			->method('createGroup');
+
+		/**
+		 * @var \OC\User\Manager $userManager
+		 */
+		$userManager = $this->getMock('\OC\User\Manager');
+		$manager = new \OC\Group\Manager($userManager);
+		$manager->addBackend($backend);
+
+		$group = $manager->createGroup('group1');
+		$this->assertEquals('group1', $group->getGID());
+	}
+
+	public function testSearch() {
+		/**
+		 * @var \PHPUnit_Framework_MockObject_MockObject | \OC_Group_Backend $backend
+		 */
+		$backend = $this->getMock('\OC_Group_Database');
+		$backend->expects($this->once())
+			->method('getGroups')
+			->with('1')
+			->will($this->returnValue(array('group1')));
+
+		/**
+		 * @var \OC\User\Manager $userManager
+		 */
+		$userManager = $this->getMock('\OC\User\Manager');
+		$manager = new \OC\Group\Manager($userManager);
+		$manager->addBackend($backend);
+
+		$groups = $manager->search('1');
+		$this->assertEquals(1, count($groups));
+		$group1 = $groups[0];
+		$this->assertEquals('group1', $group1->getGID());
+	}
+
+	public function testSearchMultipleBackends() {
+		/**
+		 * @var \PHPUnit_Framework_MockObject_MockObject | \OC_Group_Backend $backend1
+		 */
+		$backend1 = $this->getMock('\OC_Group_Database');
+		$backend1->expects($this->once())
+			->method('getGroups')
+			->with('1')
+			->will($this->returnValue(array('group1')));
+
+		/**
+		 * @var \PHPUnit_Framework_MockObject_MockObject | \OC_Group_Backend $backend2
+		 */
+		$backend2 = $this->getMock('\OC_Group_Database');
+		$backend2->expects($this->once())
+			->method('getGroups')
+			->with('1')
+			->will($this->returnValue(array('group12', 'group1')));
+
+		/**
+		 * @var \OC\User\Manager $userManager
+		 */
+		$userManager = $this->getMock('\OC\User\Manager');
+		$manager = new \OC\Group\Manager($userManager);
+		$manager->addBackend($backend1);
+		$manager->addBackend($backend2);
+
+		$groups = $manager->search('1');
+		$this->assertEquals(2, count($groups));
+		$group1 = $groups[0];
+		$group12 = $groups[1];
+		$this->assertEquals('group1', $group1->getGID());
+		$this->assertEquals('group12', $group12->getGID());
+	}
+
+	public function testSearchMultipleBackendsLimitAndOffset() {
+		/**
+		 * @var \PHPUnit_Framework_MockObject_MockObject | \OC_Group_Backend $backend1
+		 */
+		$backend1 = $this->getMock('\OC_Group_Database');
+		$backend1->expects($this->once())
+			->method('getGroups')
+			->with('1', 2, 1)
+			->will($this->returnValue(array('group1')));
+
+		/**
+		 * @var \PHPUnit_Framework_MockObject_MockObject | \OC_Group_Backend $backend2
+		 */
+		$backend2 = $this->getMock('\OC_Group_Database');
+		$backend2->expects($this->once())
+			->method('getGroups')
+			->with('1', 1, 0)
+			->will($this->returnValue(array('group12')));
+
+		/**
+		 * @var \OC\User\Manager $userManager
+		 */
+		$userManager = $this->getMock('\OC\User\Manager');
+		$manager = new \OC\Group\Manager($userManager);
+		$manager->addBackend($backend1);
+		$manager->addBackend($backend2);
+
+		$groups = $manager->search('1', 2, 1);
+		$this->assertEquals(2, count($groups));
+		$group1 = $groups[0];
+		$group12 = $groups[1];
+		$this->assertEquals('group1', $group1->getGID());
+		$this->assertEquals('group12', $group12->getGID());
+	}
+
+	public function testGetUserGroups() {
+		/**
+		 * @var \PHPUnit_Framework_MockObject_MockObject | \OC_Group_Backend $backend
+		 */
+		$backend = $this->getMock('\OC_Group_Database');
+		$backend->expects($this->once())
+			->method('getUserGroups')
+			->with('user1')
+			->will($this->returnValue(array('group1')));
+
+		/**
+		 * @var \OC\User\Manager $userManager
+		 */
+		$userManager = $this->getMock('\OC\User\Manager');
+		$manager = new \OC\Group\Manager($userManager);
+		$manager->addBackend($backend);
+
+		$groups = $manager->getUserGroups(new User('user1', null));
+		$this->assertEquals(1, count($groups));
+		$group1 = $groups[0];
+		$this->assertEquals('group1', $group1->getGID());
+	}
+
+	public function testGetUserGroupsMultipleBackends() {
+		/**
+		 * @var \PHPUnit_Framework_MockObject_MockObject | \OC_Group_Backend $backend1
+		 */
+		$backend1 = $this->getMock('\OC_Group_Database');
+		$backend1->expects($this->once())
+			->method('getUserGroups')
+			->with('user1')
+			->will($this->returnValue(array('group1')));
+		/**
+		 * @var \PHPUnit_Framework_MockObject_MockObject | \OC_Group_Backend $backend2
+		 */
+		$backend2 = $this->getMock('\OC_Group_Database');
+		$backend2->expects($this->once())
+			->method('getUserGroups')
+			->with('user1')
+			->will($this->returnValue(array('group1', 'group2')));
+
+		/**
+		 * @var \OC\User\Manager $userManager
+		 */
+		$userManager = $this->getMock('\OC\User\Manager');
+		$manager = new \OC\Group\Manager($userManager);
+		$manager->addBackend($backend1);
+		$manager->addBackend($backend2);
+
+		$groups = $manager->getUserGroups(new User('user1', null));
+		$this->assertEquals(2, count($groups));
+		$group1 = $groups[0];
+		$group2 = $groups[1];
+		$this->assertEquals('group1', $group1->getGID());
+		$this->assertEquals('group2', $group2->getGID());
+	}
+}