cartMock = $this->createMock(\Magento\Checkout\Model\Cart::class); $this->quoteMock = $this->createPartialMock( \Magento\Quote\Model\Quote::class, ['__wakeUp', 'setIsMultiShipping'] ); $this->cartMock->expects($this->once())->method('getQuote')->will($this->returnValue($this->quoteMock)); $this->object = new \Magento\Multishipping\Controller\Checkout\Plugin($this->cartMock); } public function testExecuteTurnsOffMultishippingModeOnQuote() { $subject = $this->createMock(\Magento\Checkout\Controller\Index\Index::class); $this->quoteMock->expects($this->once())->method('setIsMultiShipping')->with(0); $this->object->beforeExecute($subject); } }