Test scripts are named test_xxx.py and use the unittest module. A base class and helper functions can be found in helper.py.
Install:
pip install coverage nose
If Pillow has been built in-place
To run an individual test:
python Tests/test_image.py
Run all the tests from the root of the Pillow source distribution:
nosetests -vx Tests/test_*.py
Or with coverage:
coverage run --append --include=PIL/* -m nose -vx Tests/test_*.py coverage report coverage html open htmlcov/index.html
If Pillow has been installed
To run an individual test:
./test-installed.py Tests/test_image.py
Run all the tests from the root of the Pillow source distribution:
./test-installed.py