[CentralOH] Strange Class Behavior

[Joshua Kramer]

Ok, I found my newbie mistake.  It helps if you actually instantiate the
class instead of using it directly.  Duh!


On Thu, Feb 6, 2014 at 9:54 AM, Joshua Kramer <joskra42.list at gmail.com>wrote:

> Hello Everyone,
>
> I'm writing a testing utility.  I have an odd problem with properly
> dereferencing objects within a class.  Here is my structure:
>
> 1. A file called sql_cases.py, with this:
>
> global TEST_CASES
> TEST_CASES = {}
>
> class Test090Case1:
>     def setUp(self):
>         #Do stuff to set up the test
>     ..... More code below
>
> TEST_CASES['Test090Case1'] = Test090Case1
>
> 2. A file called test_sql.py.  It has the following:
>
> from sql_cases import TEST_CASES
>
> class TestHarness:
>     def setUp(self, test_case):
>         test_case.setUp()
>         ... More code below
>
> def Main():
>     th = TestHarness()
>     for tc in TEST_CASES.keys():
>         th.setUp(tc)
>     ... More code below
>
> When I run this, I get an error:
>
> TypeError: unbound method setUp() must be called with Test090Case1
> instance as first argument (got nothing instead)
>
> If I change the line in TestHarness.setUp to this:
> test_case.setUp(test_case)  I get the following:
>
> TypeError: unbound method setUp() must be called with Test090Case1
> instance as first argument (got classobj instance instead)
>
> In this case, the classobj is an instance of a class called
> sql_cases.Test090Case1.
>
> I am not sure why a) The object Test090Case1.setUp doesn't run with its
> own class in the "self" variable; and b) Why there is a difference between
> sql_cases.Test090Case1 and Test090Case1.
>
> What am I doing wrong here?
>
> Thanks!
> -JK
>
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