[TIP] pytest
James
bjlockie at lockie.ca
Mon Oct 17 06:00:39 PDT 2016
The output was:
a = <testscript.TestAclasss instance at 0x7f3ca6bf83b0>
def test_foo(a):
> assert a == '1'
E assert <testscript.TestAclasss instance at 0x7f3ca6bf83b0> == '1'
testscript.py:6: AssertionError
1 failed in 0.03 seconds
The missing "self" fixed it.
On 2016-10-16 12:56 AM, Bruno Oliveira wrote:
>
> Hi James,
>
> What error do you get? From your example it is missing a |self|
> argument, otherwise it should work just fine.
>
> Cheers,
> Bruno.
>
>
>
> On Sat, Oct 15, 2016 at 11:03 AM James <bjlockie at lockie.ca
> <mailto:bjlockie at lockie.ca>> wrote:
>
> I tried to make it work with a class:
>
> import pytest
>
> # testscript.py
> class TestAclasss:
>
>
> def test_foo(a):
> assert a == '1'
>
> Do I need to do something in the __init__ function?
>
>
>
>
> On 2016-10-14 02:50 PM, Bruno Oliveira wrote:
>>
>> Hi James,
>>
>> Thanks for posting the complete example.
>>
>> There are some problems here, both general Python problems and
>> some related to how you are using pytest:
>>
>> 1. |testscript.py| has no access to the |A| function because it
>> doesn’t import it.
>> 2. You probably want to declare your fixture in a |conftest.py|
>> file so pytest can make it available for all tests in your
>> test suite.
>> 3. You have to first declare your option using the
>> |pytest_addoption| hook.
>> 4. Since you intend to provide the value passed in the command
>> line to the tests using a fixture, it is simpler to skip the
>> test in the fixture itself.
>>
>> Here’s the full example with my suggestions:
>>
>> |# conftest.py import pytest @pytest.fixture(scope='module') def
>> a(request): value = request.config.getoption("A") if not value:
>> pytest.skip('test needs -A option to run') return value def
>> pytest_addoption(parser): parser.addoption("--A", action="store",
>> default=None, help="a option") # testscript.py def test_foo(a):
>> assert a == '1' |
>>
>> Running it:
>>
>> |$ py.test testscript.py -q s 1 skipped in 0.01 seconds $ py.test
>> testscript.py -q --A 1 . 1 passed in 0.01 seconds $ py.test
>> testscript.py -q --A 2 F ==================================
>> FAILURES ===================================
>> __________________________________ test_foo
>> ___________________________________ a = '2' def test_foo(a): >
>> assert a == '1' E assert '2' == '1' E - 2 E + 1 testscript.py:6:
>> AssertionError 1 failed in 0.07 seconds |
>>
>> Hope that helps,
>> Bruno.
>>
>>
>>
>>
>> On Fri, Oct 14, 2016 at 3:07 PM James <bjlockie at lockie.ca
>> <mailto:bjlockie at lockie.ca>> wrote:
>>
>>
>> Here is the exact code:
>> $ cat testconfig.py
>> import pytest
>>
>>
>> @pytest.fixture(scope='module')
>> def A(request):
>> return request.config.getoption("--A")
>>
>> $ cat testscript.py
>> import pytest
>>
>>
>> skip_A = pytest.mark.skipif(
>> A(pytest.config.request),
>> reason="need --A option to run"
>> )
>>
>>
>> $ py.test testscript.py
>> ============================= test session starts
>> ==============================
>> platform linux2 -- Python 2.7.12, pytest-2.8.7, py-1.4.31,
>> pluggy-0.3.1
>> rootdir: /home/rjl/pytest, inifile:
>> collected 0 items / 1 errors
>>
>> ==================================== ERRORS
>> ====================================
>> ________________________ ERROR collecting testscript.py
>> ________________________
>> testscript.py:4: in <module>
>> A(pytest.config.request),
>>
>> E NameError: name 'A' is not defined
>> =========================== 1 error in 0.01 seconds
>> ============================
>>
>> Instead of doing
>> pytest.config.getoptionmore than one like this:
>> skip_A = pytest.mark.skipif( pytest.config.getoption("--A"),
>> reason="need --A option to run" )
>> I want to do it once in the config file.
>> I might want to use the value of the argument --A elsewhere
>> so I don't want to do getoption many times.
>>
>>
>> On 2016-10-14 01:16 PM, Bruno Oliveira wrote:
>>>
>>> Hi,
>>>
>>> After fixing the missing “pytest” import, I get this error:
>>>
>>> |foo.py:8: in <module> A(pytest.config.request), E
>>> AttributeError: 'Config' object has no attribute 'request' |
>>>
>>> Please make sure to post a complete example and state
>>> clearly what your problem is and what you are trying to
>>> accomplish.
>>>
>>> Cheers,
>>> Bruno.
>>>
>>>
>>>
>>> On Fri, Oct 14, 2016 at 2:03 PM James <bjlockie at lockie.ca
>>> <mailto:bjlockie at lockie.ca>> wrote:
>>>
>>> I have this in my config file:
>>> @pytest.fixture(scope='module')
>>> def A(request):
>>> return request.config.getoption("--A")
>>>
>>> skip_A = pytest.mark.skipif(
>>> A(pytest.config.request),
>>> reason="need --A option to run"
>>> )
>>>
>>> but when I run it, it says
>>> E NameError: name 'A' is not defined
>>>
>>> _______________________________________________
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>>>
>>
>
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