python unittest trying to run setUpclass

Question

I am on a website where you login, then search for course, click on course and then it lands on the Credit card page, since its just one course and is common and I am just trying to run DDT on CC section and not search section this is what I did.

On the test page this is how my code looks like:

@pytest.mark.usefixtures("oneTimeSetUp","setUp")
@ddt
class SendformTest(unittest.TestCase):
    @pytest.fixture(autouse=True)
    def classSetup(self,oneTimeSetUp):
        self.sf = SendForms(self.driver)
        self.ts = TestStatus(self.driver)


    def setUp(self):  ############ I want this method to run just once after login, this method searches for course and then clicks and land on cc page
        self.sf.navigateToCCForms("img")

    @pytest.mark.run(order = 1)
    @data(*getCSVData("testRegular.csv"))
    @unpack
    def test_cc_Form(self,ccNum, ccExp, ccCVV):
        result = self.sf.verifyOnCCforms() 
        self.ts.mark(result,"On Send Form Page")
        self.sf.ccdetails(ccNum, ccExp, ccCVV)
        result1 = self.sf.sentSuccessMsg()
        self.ts.markFinal("test_sending_Form", result1, "this is test")

Right now this runs once fine and then just sits there, it wont enter data multiple times on the CC page. how do I make setUp method run just once. I tried:

@classmethod
def setUpClass(self):
    #super(SendformTest, self).setUpClass()
    self.sf.navigateToSendforms("img")

but getting the:

AttributeError: type object 'SendformTest' has no attribute 'sf'

Answer 1

The problem is that setUpClass is executed earlier than classSetup fixture, hence the AttributeError.

One workaround might be to manually allow this method to be executed once, something like:

def setUp(self):  
    if getattr(self, 'navigated'):
         return

    self.sf.navigateToCCForms("img")
    self.navigated = True

I would also try the setup_class() method supported by pytest, though I suspect you would get the same issue as with setUpClass.

Answer 2

You need to use setupClass to have something run once in the test class , setUp is run between each test. You don't use self in setupClass you use cls and need to bring it into the method. You also need to add the decorator to make it a class method not an instance method.

@classmethod def setupClass(cls): cls.sf = SendForms(self.driver) cls.ts = TestStatus(self.driver) cls.sf.navigateToSendforms("img")