I made a small project called demo, with a single test in it
import unittest
class Test(unittest.TestCase):
def testName1(self):
self.assertEqual(5+9, 14)
if __name__ == "__main__":
#import sys;sys.argv = ['', 'Test.testName']
unittest.main()
However, from command line
ThinkPad-T520:~/workspacep/demo$ python -m unittest
----------------------------------------------------------------------
Ran 0 tests in 0.000s
OK
Why doesn't this work? In general, how can I run all unit tests from command line with a single line?
The structure of the directory is
demo
tests
demo_test1.py __init__.py
There are three gotcha's that I know of:
test_*
test*.py
(by default, you can change it with the -p
flag when running the tests). eg test_demo1.py
tests
folder needs to have an __init__.py
file in it, or else it won't be considered a valid location to import from. So, for #1, you need to rename the test to test_name_1
. And for #2, there's two options:
A - Restructure your files like this:
demo
tests
__init__.py
test_demo1.py
Then run python -m unittest
and it should find the test cases.
B - Just run it like: python -m unittest discover -p *test.py
I fought with the same exact problem a while ago and I solved it by using test discovery command.
python -m unittest discover -s.
You can pass in your test file pattern as well and a whole other options https://docs.python.org/2/library/unittest.html#test-discovery
You need to pass in a list of modules .
For example, if your test file is foo.py
, then you can run python -m unittest foo
.
For me (running tests from IntelliJ IDEA ) I had to remove the class' 'Run configuration' . Earlier on I had wrongly imported the unittest as _pytest.unittest and ran the test class. Of course that didn't work.
I corrected the module import, but the 'run configuration' was still there, causing it to run as a Python script and not as 'Python tests'.
I had a similar issue and figured out that I had to run python3 -m unittest
instead as I had forgotten python
defaults to Python 2 on my system
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