public function testExecute()
{
$product = $this->getMockBuilder('\\Magento\\Catalog\\Model\\Product')->disableOriginalConstructor()->setMethods(['_wakeup', 'getId'])->getMock();
$layout = $this->getMock('\\Magento\\Framework\\View\\LayoutInterface');
$block = $this->getMockBuilder('Magento\\Bundle\\Block\\Adminhtml\\Catalog\\Product\\Edit\\Tab\\Bundle')->disableOriginalConstructor()->setMethods(['setIndex', 'toHtml'])->getMock();
$this->productBuilder->expects($this->once())->method('build')->with($this->request)->willReturn($product);
$this->initializationHelper->expects($this->any())->method('initialize')->willReturn($product);
$this->response->expects($this->once())->method('setBody')->willReturnSelf();
$this->view->expects($this->once())->method('getLayout')->willReturn($layout);
$layout->expects($this->once())->method('createBlock')->willReturn($block);
$block->expects($this->once())->method('toHtml')->willReturnSelf();
$this->controller->executeInternal();
}
