Short answer: you need to run with the module name, not the file name: pytest –cov sample test.py Long answer: One comment in the answer you linked (How to properly use coverage.py in Python?) explains that this doesn’t seem to work if the file you are trying to get the coverage of is a module … Read more
You can use a autouse fixture with session scope: @pytest.fixture(scope=”session”, autouse=True) def db_conn(): # Will be executed before the first test conn = db.connect() yield conn # Will be executed after the last test conn.disconnect() You can then also use db_conn as an argument to a test function: def test_foo(db_conn): results = db_conn.execute(…)
As of 2.5.0 py.test has the option –color=yes As of 2.7.0, it should be also possible to do: export PYTEST_ADDOPTS=”–color=yes”
Another alternative is to use the pytest-env plugin. It can be configured like so: [pytest] env = HOME=~/tmp D:RUN_ENV=test the D: prefix allows setting a default value, and not override existing variables passed to py.test. Note: you can explicitly run pytest with a custom config, if you only sometimes need to run a specialized environment … Read more