Test case execution order in pytest

Question

I am using pytest. I have two files in a directory. In one of the files there is a long running test case that generates some output. In the other file there is a test case

Answer 1

Make use of the '--randomly-dont-reorganize' option or '-p no:randomly' available in pytest-randomly plugin, this will just run your test in the same order as you mentioned in your module.

Module:

import pytest

def test_three():
    assert True

def test_four():
    assert True

def test_two():
    assert True

def test_one():
    assert True

Execution:

(tmp.w95BqE188N) rkalaiselvan@dev-rkalaiselvan:~/$ py.test --randomly-dont-reorganize test_dumm.py
======================================================================== test session starts ========================================================================
platform linux2 -- Python 2.7.12, pytest-3.10.1, py-1.5.4, pluggy-0.7.1 -- /tmp/tmp.w95BqE188N/bin/python2
cachedir: .pytest_cache
Using --randomly-seed=1566829391
rootdir: /home/rkalaiselvan, inifile: pytest.ini
plugins: randomly-1.2.3, timeout-1.3.1, cov-2.6.0, mock-1.10.0, ordering-0.6
collected 4 items

test_dumm.py::test_three PASSED
test_dumm.py::test_four PASSED
test_dumm.py::test_two PASSED
test_dumm.py::test_one PASSED

(tmp.w95BqE188N) rkalaiselvan@dev-rkalaiselvan:~/$ py.test -p no:randomly test_dumm.py
======================================================================== test session starts ========================================================================
platform linux2 -- Python 2.7.12, pytest-3.10.1, py-1.5.4, pluggy-0.7.1 -- /tmp/tmp.w95BqE188N/bin/python2
cachedir: .pytest_cache
Using --randomly-seed=1566829391
rootdir: /home/rkalaiselvan, inifile: pytest.ini
plugins: randomly-1.2.3, timeout-1.3.1, cov-2.6.0, mock-1.10.0, ordering-0.6
collected 4 items

test_dumm.py::test_three PASSED
test_dumm.py::test_four PASSED
test_dumm.py::test_two PASSED
test_dumm.py::test_one PASSED