Method addExpectedFailure

src/_pytest/unittest.py:347–356

(
        self,
        testcase: unittest.TestCase,
        rawexcinfo: _SysExcInfoType,
        reason: str = "",
    )

                add_skip()

    def addExpectedFailure(
        self,
        testcase: unittest.TestCase,
        rawexcinfo: _SysExcInfoType,
        reason: str = class="st">"",
    ) -> None:
        try:
            xfail(str(reason))
        except xfail.Exception:
            self._addexcinfo(sys.exc_info())

    def addUnexpectedSuccess(
        self,