pytest plugin help to find coupled tests
Project description
pytest-sherlock
Pytest plugin which help to find coupled tests.
Sometimes we have coupled tests which depend from ordering
For example:
- PASSES
tests/exmaple/test_all_read.py tests/exmaple/test_b_modify.py tests/exmaple/test_c_delete.py
- FAILED
tests/exmaple/test_c_delete.py tests/exmaple/test_b_modify.py tests/exmaple/test_all_read.py
In this case pretty simple to detect coupled tests, but if we have >=1k tests which called before it will hard
Content:
Install
pip install pytest-sherlock
how to use:
pytest tests/exmaple/test_c_delete.py tests/exmaple/test_b_modify.py tests/exmaple/test_all_read.py --flaky-test="test_read_params" -vv
Plugin didn't run all tests, it try to find some possible guilty test and will run first
======================= test session starts =======================
collected 10 items
Try to find coupled tests
Step #1:
tests/exmaple/test_b_modify.py::test_modify_random_param PASSED [ 20%]
tests/exmaple/test_c_delete.py::test_delete_random_param PASSED [ 40%]
tests/exmaple/test_c_delete.py::test_deleted_passed PASSED [ 60%]
tests/exmaple/test_c_delete.py::test_do_not_delete PASSED [ 80%]
tests/exmaple/test_all_read.py::test_read_params COUPLED [100%]
Step #2:
tests/exmaple/test_b_modify.py::test_modify_random_param PASSED [ 33%]
tests/exmaple/test_c_delete.py::test_delete_random_param PASSED [ 66%]
tests/exmaple/test_all_read.py::test_read_params COUPLED [100%]
Step #3:
tests/exmaple/test_b_modify.py::test_modify_random_param PASSED [ 50%]
tests/exmaple/test_all_read.py::test_read_params COUPLED [100%]
========================= COUPLED =========================
____________________ test_read_params _____________________
config = {'a': 1, 'b': 13, 'c': 3}, param = 'b'
def test_read_params(config, param):
> assert config.get(param) == 2
E AssertionError: assert 13 == 2
E + where 13 = <built-in method get of dict object at 0x10edb54b0>('b')
E + where <built-in method get of dict object at 0x10edb54b0> = {'a': 1, 'b': 13, 'c': 3}.get
tests/exmaple/test_all_read.py:8: AssertionError
================================================================================ 7 passed, 3 coupled in 0.07 seconds ================================================================================
TODO
I have a couple ideas, how to improve finder coupled tests:
- use AST for detect common peace of code (variables, functions, etc...)
- Also need to add tests for it =)
Project details
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
pytest-sherlock-0.1.3.tar.gz
(5.5 kB
view hashes)
Built Distribution
Close
Hashes for pytest_sherlock-0.1.3-py2-none-any.whl
Algorithm | Hash digest | |
---|---|---|
SHA256 | 3f9f652e1d523b2b9713e0ae31717dbea694bd6799f21a2e818e6ac2c813400d |
|
MD5 | 70f0d1a4c001a94babc12c5693a5e4ee |
|
BLAKE2b-256 | 70046a1b0204c012cec6c6f73c88ceba0fc7884b18bc4acb75a4a62bb8198033 |