How to disable skipping a test in pytest without modifying the code?

Question

I have inherited some code that implements pytest.mark.skipif for a few tests. Reading through the pytest docs, I am aware that I can add conditions, possibly check for environment variables, or use more advanced features of pytest.mark to control groups of tests together. Unfortunately nothing in the docs so far seems to solve my problem.

I'm looking to simply turn off any test skipping, but without modifying any source code of the tests. I just want to run pytest in a mode where it does not honor any indicators for test skipping. Does such a solution exist with pytest?

Answer 1

Create a conftest.py with the following contents:

import pytest
import _pytest.skipping


def pytest_addoption(parser):
    parser.addoption(
        "--no-skips",
        action="store_true",
        default=False, help="disable skip marks")


@pytest.hookimpl(tryfirst=True)
def pytest_cmdline_preparse(config, args):
    if "--no-skips" not in args:
        return

    def no_skip(*args, **kwargs):
        return

    _pytest.skipping.skip = no_skip

the use --no-skip in command line to run all testcases even if some testcases with pytest.mark.skip decorator

Answer 2

Ok the implementation does not allow for this with zero modifications. You’ll need a custom marker. Add the following to your conftest.py then change all skipif marks to custom_skipif. Use pytest --no-skips.

import pytest
from _pytest.mark.evaluate import MarkEvaluator

def pytest_addoption(parser):
    parser.addoption(
        "--no-skips", action="store_true", default=False, help="disable custom_skip marks"
    )

@hookimpl(tryfirst=True)
def pytest_runtest_setup(item):
    if item.config.getoption('--no-skips'):
        return

    # Check if skip or skipif are specified as pytest marks
    item._skipped_by_mark = False
    eval_skipif = MarkEvaluator(item, "custom_skipif")
    if eval_skipif.istrue():
        item._skipped_by_mark = True
        pytest.skip(eval_skipif.getexplanation())

    for skip_info in item.iter_markers(name="custom_skip"):
        item._skipped_by_mark = True
        if "reason" in skip_info.kwargs:
            pytest.skip(skip_info.kwargs["reason"])
        elif skip_info.args:
            pytest.skip(skip_info.args[0])
        else:
            pytest.skip("unconditional skip")

    item._evalxfail = MarkEvaluator(item, "xfail")
    check_xfail_no_run(item)

The implementation is copied and modified from pytest itself in skipping.py.