reciever = new class implements RecieverAttributInterface{ use RecieverAttribut; }; } public function testConstructor():void{ $this->expectException(\TypeError::class); $this->reciever->getReciever(); } public function testAccessors():void{ $reciever = $this->createMock(RecieverInterface::class); $this->assertNull($this->reciever->setReciever($reciever)); $this->assertEquals($reciever, $this->reciever->getReciever()); } }