Python Testing with pytest

Review

In this chapter, we looked at custom markers, builtin markers, and how to use markers to pass data to fixtures. We also covered a few new options and changes to pytest.ini.

Here’s an example pytest.ini file:

[pytest]
markers =
    <marker_name>: <marker_description>
    <marker_name>: <marker_description>

addopts =
    --strict-markers
    -ra

xfail_strict = true

• Custom markers are declared with the markers section.

• The --strict-markers flag tells pytest to raise an error if it sees us using an undeclared marker. The default is a warning.

• The -ra flag tells pytest to list the reason for any test that isn’t passing. This includes fail, error, skip, xfail, and xpass.

• Setting xfail_strict = true turns any passing tests marked ...