[TIP] User defined pytest parameter in setup

Brian Okken variedthoughts at gmail.com
Fri Mar 22 06:54:10 PDT 2019

Use the new `pytestconfig` fixture.

# --------- conftest.py

def pytest_addoption(parser):
    parser.addoption("--name", action="store", default="default name")

#  ------- test_param.py
import pytest

def name(pytestconfig):
    return pytestconfig.getoption("name")

def test_print_name(name):
        print(f"\ncommand line param (name): {name}")

# ---- test run
$ pytest -q -s --name Brian test_param.py
command line param (name): Brian
1 passed in 0.01 seconds
# ---

On Fri, Mar 22, 2019 at 4:00 AM Fabian Cenedese <Cenedese at indel.ch> wrote:

> Hello
> I want to parametrize a test I have. In the test file are several
> test functions together with a setup/teardown pair. I now want
> to give the setup function a value, preferably via command line
> option. I have added a conftest.py that adds the option (taken
> from the example, with pytest_addoption). In the setup
> function I can get the option with pytest.config.getoption.
> This works. However I get the warning that pytest.config is
> deprecated. How can I solve this using a fixture if I can't
> add request as parameter to the setup function? Or is there
> another way to use a test with different user definable values?
> Thanks
> bye  Fabi
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