))             ->method('setDesignTheme');         $this->objectManagerMock->expects($this->once())             ->method('get')             ->with(\Magento\Framework\View\DesignInterface::class)             ->willReturn($designMock);         $this->designMock->expects($this->exactly($callNum0))             ->method('loadChange')             ->with(self::SCOPE_ID)             ->willReturnSelf();         $this->designMock->expects($this->exactly($callNum0))             ->method('changeDesign')             ->with($designMock)             ->willReturnSelf();         $requestMock = $this->getMockBuilder(Http::class)             ->disableOriginalConstructor()             ->getMock();         $this->object->detectDesign($requestMock);     }      /**      * @return array      */     public function 