public function testExecuteInvalidArgument()
{
$themeId = 1;
$fileParam = '/path/to/file.ext';
$fileId = 'fileId';
$refererUrl = 'referer/url';
$this->request->expects($this->any())->method('getParam')->willReturnMap([['theme_id', null, $themeId], ['file', null, $fileParam]]);
$theme = $this->getMockBuilder('Magento\\Framework\\View\\Design\\ThemeInterface')->setMethods(['getId', 'load'])->getMockForAbstractClass();
$urlDecoder = $this->getMockBuilder('Magento\\Framework\\Url\\DecoderInterface')->getMock();
$logger = $this->getMockBuilder('Psr\\Log\\LoggerInterface')->getMock();
$this->objectManager->expects($this->any())->method('get')->willReturnMap([['Magento\\Framework\\Url\\DecoderInterface', $urlDecoder], ['Psr\\Log\\LoggerInterface', $logger]]);
$this->objectManager->expects($this->any())->method('create')->with('Magento\\Framework\\View\\Design\\ThemeInterface')->willReturn($theme);
$urlDecoder->expects($this->once())->method('decode')->with($fileParam)->willReturn($fileId);
$theme->expects($this->once())->method('load')->with($themeId)->willReturnSelf();
$theme->expects($this->once())->method('getId')->willReturn(null);
$this->messageManager->expects($this->once())->method('addException');
$logger->expects($this->once())->method('critical');
$this->redirect->expects($this->once())->method('getRefererUrl')->willReturn($refererUrl);
$this->response->expects($this->once())->method('setRedirect')->with($refererUrl);
$this->controller->execute();
}
