multiprocessing does not seem to be supported

[janbernloehr]

Suppose I have the following code and tests

# mymodule.py
class MyClass:
    def foo(self):
        return "bar"

# test_mymodule.py
import multiprocessing

def __run_foo():
    from mymodule import MyClass
    c = MyClass()
    assert c.foo() == "bar"

def test_foo():
    process = multiprocessing.Process(target=__run_foo)
    process.start()
    process.join()
    assert process.exitcode == 0

After a first successful run of pytest --testmon test_mymodule.py, one can change the implementation of foo() without testmon noticing and no new runs are triggered.

When running pytest --cov manually, we get a trace

[tarpas]

Correct. Users are welcome to react or comment to this issue so that I know how important it is.

[FrankLeeeee]

It will be great if multiprocessing can be supported. I think integrating with pytest-cov will be a good move.

[janbernloehr]

This is unfortunately still the case with testmon 2.0.9