public function testUpdate()
 {
     $this->assertTrue($this->ab->update(array('displayname' => 'bar')));
     $this->assertEquals('bar', $this->backend->addressBooks[0]['displayname']);
     $props = $this->ab->getMetaData();
     return $this->ab;
 }
 public function testGetPermissions()
 {
     $this->assertEquals($this->ab->getPermissions(), $this->contact->getPermissions());
     $this->assertEquals(\OCP\PERMISSION_ALL, $this->contact->getPermissions());
 }