public function EntitySubjectTest::testAttachMethod in Changed Fields API 8.3
Entity subject can attach observers.
File
- tests/
src/ Unit/ EntitySubjectTest.php, line 51
Class
- EntitySubjectTest
- @coversDefaultClass \Drupal\changed_fields\EntitySubject
Namespace
Drupal\Tests\changed_fields\UnitCode
public function testAttachMethod() {
$observer_mock = $this
->createMock('SplObserver');
$this
->expectException(\InvalidArgumentException::class);
$this
->expectExceptionMessage('Observer must implement ObserverInterface interface.');
$this->entitySubject
->attach($observer_mock);
}