test_xdist_handling.py

from textwrap import dedent

import pytest
import pytest_order


def test_xdist_ordering(tmpdir):
    testname = str(tmpdir.join("first_test.py"))
    with open(testname, "w") as fi:
        fi.write(
            dedent(
                """
            import pytest

            val = 1

            @pytest.mark.order("second")
            def test_second_integer():
                global val
                assert val == 2
                val += 1

            def test_last_integer():
                assert val == 3

            @pytest.mark.order("first")
            def test_first_integer():
                global val
                assert val == 1
                val += 1
            """
            )
        )

    testname = str(tmpdir.join("second_test.py"))
    with open(testname, "w") as fi:
        fi.write(
            dedent(
                """
            import pytest

            val = "frog"

            @pytest.mark.order("second")
            def test_second_string():
                global val
                assert val == "goat"
                val = "fish"

            def test_last_string():
                assert val == "fish"

            @pytest.mark.order("first")
            def test_first_string():
                global val
                assert val == "frog"
                val = "goat"
            """
            )
        )
    # With `loadfile`, the tests should pass
    args = ["-n3", "--dist=loadfile", f"--rootdir={tmpdir}", str(tmpdir)]
    ret = pytest.main(args, [pytest_order])
    assert ret == 0

    # Without `loadfile`, the tests should fail
    args = ["-n3", f"--rootdir={tmpdir}", str(tmpdir)]
    ret = pytest.main(args, [pytest_order])
    assert ret == 1