public function testGetAssociationMappingException() { $filter = new FooFilter(); $filter->initialize('foo'); try { $filter->getAssociationMapping(); } catch (\RuntimeException $e) { $this->assertContains('The option `association_mapping` must be set for field: `foo`', $e->getMessage()); return; } $this->fail('Failed asserting that exception of type "\\RuntimeException" is thrown.'); }