public function testHasAssociationAdmin()
 {
     $adminMock = $this->getMockBuilder('Sonata\\AdminBundle\\Admin\\Admin')->disableOriginalConstructor()->getMock();
     $adminMock->expects($this->once())->method('setParentFieldDescription')->with($this->isInstanceOf('Sonata\\AdminBundle\\Admin\\FieldDescriptionInterface'));
     $field = new FieldDescription();
     $this->assertFalse($field->hasAssociationAdmin());
     $field->setAssociationAdmin($adminMock);
     $this->assertTrue($field->hasAssociationAdmin());
 }