[Tutor] Do not understand why test is running.

[boB Stepp]

On Sun, Aug 23, 2015 at 11:47 AM, Peter Otten <__peter__ at web.de> wrote:
> boB Stepp wrote:

>> And am I misreading the docs at
>> https://docs.python.org/3/library/unittest.html#test-discovery:
>>
>>
> -------------------------------------------------------------------------------------------------------------------
>> 26.3.2. Command-Line Interface
>>
>> [...]
>>
>> Test modules can be specified by file path as well:
>>
>> python -m unittest tests/test_something.py
>>
>> This allows you to use the shell filename completion to specify the
>> test module. The file specified must still be importable as a module.
>> The path is converted to a module name by removing the ‘.py’ and
>> converting path separators into ‘.’
>
> I didn't know this.
>
>> According to this, from E:\Projects\mcm, I should be able to type
>>
>> py -m unittest ./test/db/test_manager.py
>
> Let's process the argument you provide following the above recipe:
>
> (1) Remove .py
>
> "./test/db/test_manager"
>
> (2) Replace / with .
>
> "..test.db.test_manager"
>
> Do you see now why
>
>>  this continues to result in:
>
> [...]
>
>>   File "C:\Python34\lib\unittest\loader.py", line 105, in
>>   loadTestsFromName
>>     module = __import__('.'.join(parts_copy))
>> ValueError: Empty module name
>
> ?

This gets into the same issue you pointed out earlier in the thread.
Thanks for demonstrating how I *should* have applied the docs to my
current question.

> Without the leading ./ it will probably work.

Unfortunately, no:

E:\Projects\mcm>E:\Projects\mcm>py -m unittest test/db/test_manager.py
'E:\Projects\mcm' is not recognized as an internal or external command,
operable program or batch file.

I also tried (Just to try...)

E:\Projects\mcm>E:\Projects\mcm>py -m unittest /test/db/test_manager.py
'E:\Projects\mcm' is not recognized as an internal or external command,
operable program or batch file.

However, if I use the FULL path:

E:\Projects\mcm>py -m unittest e:\Projects\mcm\test\db\test_manager.py
.
----------------------------------------------------------------------
Ran 1 test in 0.000s

OK

all is fine.

>> I believe that I understand Peter's point earlier, but if I am reading
>> the docs correctly, I should be able to do this.

With your help, I have (finally) demonstrated this.

> While I don't think it's a bug you might still file a feature request on
> bugs.python.org.

In retrospect, the only change I would suggest to the cited docs, is
to say "... full file path ..." or "... fully qualified file path ..."
instead of just "... file path ...".


-- 
boB