public function testDelete()
{
$mockRequest = $this->getMockBuilder(DefaultServiceRequest::class)->setMethods(["delete"])->disableOriginalConstructor()->getMock();
$mockRequest->expects($this->once())->method("delete")->with($this->equalTo("https://spreadsheets.google.com/feeds/worksheets/tA3TdJ0RIVEem3xQZhG2Ceg/private/full/od8/0"));
ServiceRequestFactory::setInstance($mockRequest);
$this->worksheet->delete();
}