pytest fixture-使用标记将数据传递给fixture

使用请求对象，​fixture​还可以访问应用到测试函数的标记。这对于将数据从测试传递到​fixture​非常有用:

import pytest


@pytest.fixture
def fixt(request):
    marker = request.node.get_closest_marker("fixt_data")
    if marker is None:
        # Handle missing marker in some way...
        data = None
    else:
        data = marker.args[0]

    # Do something with the data
    return data


@pytest.mark.fixt_data(42)
def test_fixt(fixt):
    assert fixt == 42