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Pytest plugin for parametrizing tests with default iterables.

Project description

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Pytest module 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

Tests

100% branch coverage.

% pytest [--cov]

Changes

1.3

  • Python >=3.6 required

1.2

  • Namespace plugin removed

1.1

  • pytest 4 compatibility

1.0

  • parametrized keyword options

0.2

  • fixture keyword options

Project details


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