[Tutor] Where should unit test files go in a project directory structure and some related questions?

[Laura Creighton]

In a message of Sun, 16 Aug 2015 18:45:31 +0100, Alan Gauld writes:
>On 16/08/15 16:41, Alex Kleider wrote:
>
>>> - src      the code
>>> -- lang      folder per language used - sql, python, C, bash, etc
>>> --- lib      modules/packages - subfolder per package
>>> --- test     test code - sub-tree under this, depends on test tools.
>>> --- tools    tools used but not shipped - db load/reset etc
>>> --- main     folder in some languages, a file in others
>>
>> Alan,
>> Assuming the above structure and further assuming that your python test
>> suite is under test,
>> how do you arrange to import code that is under main?
>
>Thee are several options.
>1) create links from, main to the test files needed
>2) alter sys.path so imports can see the test folder
>3) alter the PYTHONPATH environment var
>
>But in most of my Python projects main is a file rather than
>a folder so test is "under" main anyway. This above is a generic 
>structure because most of my projects use 4 or 5 languages
>at least. Some IDEs require different structures too so the
>separate lang sub-structures may vary to suit the toolset usee.
>
>> I've not been able to do that.  Is there a way?
>
>I suspect in this case the easiest solution is a link
>(aka shortcut in windoze)
>

We have a new mechanism for test discovery in 2.7 and 3.x
https://docs.python.org/3/library/unittest.html
see 26.3.3

It's been backported.
see: https://pypi.python.org/pypi/unittest2

Also, if you are on Python2 and you put your tests in a test subdirectory
you need to remember to make an __init__.py file there.

Laura