pytest-parametrized 1.1

Pytest plugin for parametrizing tests with default iterables.

Pytest plugin for parametrizing tests with default iterables, providing alternative syntax for pytest.mark.parametrize.

Usage

Decorate tests with iterable default values.

functions

from parametrized import parametrized

@parametrized
def test(name=values, ...):
    """test single parametrized arg with each value"""

@parametrized.zip
def test(name=values, name1=values1, ...):
    """test parametrized args with zipped values"""

@parametrized.product
def test(name=values, name1=values1, ...):
    """test parametrized args with cartesian product of values"""

Zip before and after example:

@pytest.mark.parametrize("test_input,expected", [
    ("3+5", 8),
    ("2+4", 6),
    ("6*9", 42),
])
def test_eval(test_input, expected):
    assert eval(test_input) == expected

@parametrized.zip
def test_eval(test_input=("3+5", "2+4", "6*9"), expected=(8, 6, 42)):
    assert eval(test_input) == expected

Product before and after example:

@pytest.mark.parametrize("x", [0, 1])
@pytest.mark.parametrize("y", [2, 3])
def test_foo(x, y):
    pass

@parametrized.product
def test_foo(x=(0, 1), y=(2, 3)):
    pass

fixtures

Parametrized fixtures which simply return their param.

fixture_name = parametrized.fixture(*params, **kwargs)

Before and after example:

@pytest.fixture(params=[0, 1], ids=["spam", "ham"])
def a(request):
    return request.param

a = parametrized.fixture(0, 1, ids=["spam", "ham"])

Installation

$ pip install pytest-parametrized

Note parametrized can be added to pytest's namespace by registering it as a plugin in conftest.py.

pytest_plugins = 'parametrized', ...

However, pytest encourages importing modules explicitly.

Tests

100% branch coverage.

$ pytest [--cov]

Changes

1.1

• pytest 4 compatibility

1.0

• parametrized keyword options

0.2

• fixture keyword options