Default skip test unless command line parameter present in py.test

Question

I have a long run test, which lasts 2 days, which I don't want to include in a usual test run. I also don't want to type command line parameters, that would deselect it and other tests at every usual test run. I would prefer to select a default-deselected test, when I actually need it. I tried renaming the test from test_longrun to longrun and use the command

py.test mytests.py::longrun 

but that does not work.

Answer 1

Alternatively to the pytest_configure solution above I had found pytest.mark.skipif.

You need to put pytest_addoption() into conftest.py

def pytest_addoption(parser):     parser.addoption('--longrun', action='store_true', dest="longrun",                  default=False, help="enable longrundecorated tests") 

And you use skipif in the test file.

import pytest  longrun = pytest.mark.skipif("not config.getoption('longrun')")  def test_usual(request):     assert False, 'usual test failed'  @longrun def test_longrun(request):     assert False, 'longrun failed' 

In the command line

py.test 

will not execute test_longrun(), but

py.test --longrun 

will also execute test_longrun().