coady/pytest-parametrized

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[Pytest](https://pytest.org/) decorator for parametrizing tests with default iterables, providing alternative syntax for [pytest.mark.parametrize](https://docs.pytest.org/en/latest/how-to/parametrize.html).

# Usage
Decorate tests with iterable default values. Other fixtures can still be used as normal.

## functions
```python
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:
```python
@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:
```python
@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](https://docs.pytest.org/en/latest/how-to/fixtures.html#fixture-parametrize) which simply return their param.

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

Before and after example:
```python
@pytest.fixture(params=[0, 1], ids=["spam", "ham"])
def a(request):
    return request.param

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

# Installation
```console
% pip install pytest-parametrized
```

# Tests
100% branch coverage.

```console
% pytest [--cov]
```