[TIP] pytest
James
bjlockie at lockie.ca
Sat Oct 15 07:03:00 PDT 2016
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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