Group Database backend must not gather user details itself but ask user

backends. This is a port to master from PR #7745

remove OC_GROUP_BACKEND_GET_DISPLAYNAME option for group backends

Conflicts:
	lib/private/group/backend.php

LDAP: getDisplayNamesInGroup is not an option for group backends anymore

Conflicts:
	apps/user_ldap/group_ldap.php
	apps/user_ldap/group_proxy.php

clean up group backends

Conflicts:
	lib/private/group/database.php

remove now unnecessary test

implement getDisplayNames in group manager

adjust user manager tests

test for group manager's displayNamesInGroup

trim must not be used in empty in PHP < 5.5

keep the constant to not provoke PHP warnings

Conflicts:
	lib/private/group/backend.php

1 files changed, 0 insertions, 19 deletions

diff --git a/tests/lib/group.php b/tests/lib/group.php
index 8de8d033e19..26232187c36 100644
--- a/tests/lib/group.php
+++ b/tests/lib/group.php
@@ -109,25 +109,6 @@ class Test_Group extends PHPUnit_Framework_TestCase {
 		$this->assertEquals(array(), OC_Group::getGroups());
 	}
 
-	public function testDisplayNamesInGroup() {
-		OC_Group::useBackend(new OC_Group_Dummy());
-		$userBackend = new \OC_User_Dummy();
-		\OC_User::getManager()->registerBackend($userBackend);
-
-		$group1 = uniqid();
-		$user1 = 'uid1';
-		$user2 = 'uid2';
-		OC_Group::createGroup($group1);
-		$userBackend->createUser($user1, '');
-		$userBackend->createUser($user2, '');
-		OC_Group::addToGroup($user1, $group1);
-		OC_Group::addToGroup($user2, $group1);
-		//Dummy backend does not support setting displaynames, uid will always
-		//be returned. This checks primarily, that the return format is okay.
-		$expected = array($user1 => $user1, $user2 => $user2);
-		$this->assertEquals($expected, OC_Group::displayNamesInGroup($group1));
-	}
-
 	public function testUsersInGroup() {
 		OC_Group::useBackend(new OC_Group_Dummy());
 		$userBackend = new \OC_User_Dummy();