Method __exit__

src/_pytest/raises.py:688–720

(
        self,
        exc_type: type[BaseException] | None,
        exc_val: BaseException | None,
        exc_tb: types.TracebackType | None,
    )

    # TODO: move common code into superclass
    def __exit__(
        self,
        exc_type: type[BaseException] | None,
        exc_val: BaseException | None,
        exc_tb: types.TracebackType | None,
    ) -> bool:
        __tracebackhide__ = True
        if exc_type is None:
            if not self.expected_exceptions:
                fail("DID NOT RAISE any exception")
            if len(self.expected_exceptions) == 1:
                fail(f"DID NOT RAISE {self.expected_exceptions[0].__name__}")
            else:
                names = ", ".join(x.__name__ for x in self.expected_exceptions)
                fail(f"DID NOT RAISE any of ({names})")

        assert self.excinfo is not None, (
            "Internal error - should have been constructed in __enter__"
        )

        if not self.matches(exc_val):
            if self._just_propagate:
                return False
            raise AssertionError(self._fail_reason) from None

        # Cast to narrow the exception type now that it's verified....
        # even though the TypeGuard in self.matches should be narrowing
        exc_info = cast(
            "tuple[type[BaseExcT_co_default], BaseExcT_co_default, types.TracebackType]",
            (exc_type, exc_val, exc_tb),
        )
        self.excinfo.fill_unfilled(exc_info)
        return True


@final