How to use py.test from Python?

Question

I\'m working in a project that recently switched to the py.test unittest framework. I was used to call my tests from Eclipse, so that I can use the debugger (e.g. placing br

Answer 1

Maybe you could give a try to pycharm it has direct integration with py.test (I use it at work) and debugger runs perfectly.

Answer 2

You can just run py.test --pdb if you just want to a debugger and don't need the IDE

Answer 3

I have not tried with eclipse, but as was suggested in a related question, it is possible to use the --pdb command line option with py.test. Maybe it is possible to configure eclipse that way.

However, calling the standard import pdb;pdb.set_trace() will not directly call the debugger. First it will issue an error which in turn will activate the debugger. This might or might not make things work differently.

Answer 4

For me it was this:

pytest.main(["-x", "path to test file", "args"])

For example:

import pytest
pytest.main(["-x", "/api/test", "-vv"])

Answer 5

I think I can now answer my own question, it's pretty simple:

import py
py.test.cmdline.main(args)

Then I can run this module and or start it with the integrated debugger.

args is the list of command line arguments, so for example to run only particular tests I can use something like:

args_str = "-k test_myfavorite"
py.test.cmdline.main(args_str.split(" "))

Answer 6

It seems that now (py.test version 2.0+) someone can also do this :

import pytest

pytest.main('-x {0}'.format(argument))

# Or
# pytest.main(['-x', 'argument'])

Ref : https://pytest.org/latest/usage.html#calling-pytest-from-python-code