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我想获取有关在测试call阶段引发的异常的信息，并将它们添加到使用pytest-html插件创建的报告中。所以我hookwrapper为pytest_runtest_makereport：

@hookimpl(hookwrapper=True)
def pytest_runtest_makereport(call):
    outcome = yield
    result = outcome.get_result()
    errors = getattr(result, "errors", [])
    if result.when == "call":
        if result.failed:
            if error := call.excinfo:
                errors.append(error.typename)
                result.errors = errors
        else:
            logger.info("PASSED")

要将此信息添加到测试报告中，我正在使用：

def pytest_html_results_table_html(report, data):
    del data[:]
    if errors := getattr(report, "errors", []):
        data.append(html.div(", ".join(errors), class_="failed log"))

不幸的pytest_html_results_table_html是，报告实例中没有错误字段。如果我添加result.errors = errors到拆卸阶段，字段会出现在报告对象中，但它有空列表。我知道有一个extra字段，但pytest-html将其直接添加到报告中。我想在添加这些值之前对它们做一些事情。

那么我在这里缺少什么？如何将此值从pytest_runtest_makereportto传递pytest_html_results_table_html？

我正在使用的示例测试类：

from logging import getLogger

from pytest import fixture

logger = getLogger()


class TestVariousOutputs:
    @fixture()
    def setup(self):
        logger.info("Run setup")
        raise RuntimeError("Error raised during setup")

    @fixture()
    def teardown(self):
        logger.info("Run setup")
        yield
        logger.info("Run teardown")
        raise RuntimeError("Error raised during teardown")

    def test_pass(self):
        logger.info("Run test")
        assert True

    def test_fail(self):
        logger.info("Run test")
        assert False, "Assert False"

    def test_raise_error(self):
        logger.info("Run test")
        raise RuntimeError("Error raised during test run")

    def test_setup_raise_error(self, setup):
        logger.info("Run test")
        assert True

    def test_teardown_raise_error(self, teardown):
        logger.info("Run test")
        assert True

    def test_teardown_raise_error_and_test_fails(self, teardown):
        logger.info("Run test")
        assert False, "Assert False but teardown should also fail"
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1 回答 1

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因为这是pytest-html当前实现的方式：对于每个测试用例，它将获取报告并从和报告中teardown复制选定的字段。当然，自定义字段会被简单地忽略（呃！）。因此，您必须拦截报告的这种后处理并确保您的自定义字段出现在报告中。放入您的示例：callsetuppytestteardownconftest.py

@pytest.hookimpl(tryfirst=True)  # run our hookimpl before pytest-html does its own postprocessing
def pytest_sessionfinish(session):
    html_report = getattr(session.config, "_html", None)
    for rep_setup, rep_call, rep_teardown in html_report.reports.values():
        # copy errors field from call report to teardown report
        rep_teardown.errors = getattr(rep_call, "errors", [])
于 2021-02-01T12:57:10.133 回答