Method addUnexpectedSuccess

src/_pytest/unittest.py:272–284

(
        self,
        testcase: "unittest.TestCase",
        reason: Optional["twisted.trial.unittest.Todo"] = None,
    )

            self._addexcinfo(sys.exc_info())

    def addUnexpectedSuccess(
        self,
        testcase: "unittest.TestCase",
        reason: Optional["twisted.trial.unittest.Todo"] = None,
    ) -> None:
        msg = "Unexpected success"
        if reason:
            msg += f": {reason.reason}"
        # Preserve unittest behaviour - fail the test. Explicitly not an XPASS.
        try:
            fail(msg, pytrace=False)
        except fail.Exception:
            self._addexcinfo(sys.exc_info())

    def addSuccess(self, testcase: "unittest.TestCase") -> None:
        pass