Menu
This is my function:
def get_value(request, param):
s = get_string(request, param)
value = re.search('(\\d\\d\\d\\d)-(\\d\\d)-(\\d\\d)', s)
if not value:
print 'match not found!'
raise Exception('incorrect format: %s' % param)
test function:
def test_get_value(self):
m = test_mocks.HttpRequestMock(REQUEST = {'start_date': '2011.07.31'})
print '*************************'
print 'date format changed'
self.assertRaises(Exception, get_value, (m, 'start_date'))
print '*********************
get_value doesn't print: match not found!
347
And here's how you assert no exception is raised. Solution: Enclose your code in a try/except block and and if the code raises, you can catch it and print a nice message. pytest is smart enough to make the test fail even if you don't catch it but having a message makes your test cleaner.
Python testing framework uses Python's built-in assert() function which tests a particular condition. If the assertion fails, an AssertionError will be raised. The testing framework will then identify the test as Failure. Other exceptions are treated as Error.
The crux of each test is a call to assertEqual() to check for an expected result; assertTrue() or assertFalse() to verify a condition; or assertRaises() to verify that a specific exception gets raised.
It seems there is some issue with your python version. I guess you are using python below version 2.6. Try passing function parameters as other arguments to function i.e. do not put them inside tuple. Try this.
self.assertRaises(Exception, helpers.get_value, m, 'start_date')
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
