pytest-expect-test 0.1.0

Description:

pytestexpecttest 0.1.0

A fixture to support expect tests (golden tests) in pytest
This code was mostly copied from ezyang/expecttest who wrote an implementation for unittest.

Installation
You can install “pytest-expect-test” via pip from PyPI:
$ pip install pytest-expect-test


Usage
Start by writing your test, printing out any interesting output, and then calling expect with an empty string
# Function we are testing
def cumulative_sum(nums):
cum_sum = 0
result = []
for num in nums:
result.append(num+cum_sum)
cum_sum += num
return result


def test_simple(expect):
print(cumulative_sum([2, 3, 5]))
expect("""""")
print(cumulative_sum([1, 5, 9]))
expect("""""")
Then run:
$ pytest
Note that the test fails because we expected nothing to be printed (e.g. we passed an empty string to the expect function), but there was some text that was printed.
We can automatically fix these tests by running:
$ EXPECTTEST_ACCEPT=1 pytest
Our test will then be updated to look like:
def test_simple(expect):
print(cumulative_sum([2, 3, 5]))
expect("""\
[2, 5, 10]
""")
print(cumulative_sum([1, 5, 9]))
expect("""\
[1, 6, 15]
""")


Contributing
Contributions are very welcome. Tests can be run with tox, please ensure
the coverage at least stays the same before you submit a pull request.


License
Distributed under the terms of the MIT license, “pytest-expect-test” is free and open source software
This pytest plugin was generated with Cookiecutter along with @hackebrot’s cookiecutter-pytest-plugin template.


Issues
If you encounter any problems, please file an issue along with a detailed description.