Create pytest parametrize decorators from external files.
Project description
pytest-param-files
A small package to create pytest parametrize decorators from external files.
Simply create a text file with the following (dot
) format:
[name1] description
.
input content
.
expected output content
,
[name2] description
.
input content
.
expected output content
,
Then, use the with_parameters
decorator to create a parametrized test:
from pathlib import Path
from pytest_param_files import with_parameters
import my_function
PATH = Path(__file__).parent.joinpath("test_file.txt")
@with_parameters(PATH, fmt="dot")
def test_function(file_params):
assert my_function(file_params.content) == file_params.expected
and the output will be:
$ pytest -v test_file.py
...
test_file.py::test_function[1-name1] PASSED
test_file.py::test_function[8-name2] FAILED
Alternatively use the assert_expected
method, which will can handle more rich assertion features:
@with_parameters(PATH, fmt="dot")
def test_function(file_params):
actual = my_function(file_params.content)
assert file_params.assert_expected(actual, rstrip=True)
$ pytest -v test_file.py
...
test_file.py::test_function[1-name1] PASSED
test_file.py::test_function[8-name2] FAILED
...
E AssertionError: Actual does not match expected
E --- /path/to/test_file.txt:8
E +++ (actual)
E @@ -1 +1 @@
E -content+other
Installation
Install from PyPI:
$ pip install pytest-param-files
or install locally (for development):
$ pip install -e .
Other formats
TODO ...
Regenerating expected output on failures
TODO ...
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