Method _get_top_level_cases

tests/test_async_helpers.py:58–192

(self)

            self.assertFalse(_should_be_async("'\\ud800'\nawait foo"))

    def _get_top_level_cases(self):
        # These are test cases that should be valid in a function
        # but invalid outside of a function.
        test_cases = []
        test_cases.append(("basic", "{val}"))

        # Note, in all conditional cases, I use True instead of
        # False so that the peephole optimizer won't optimize away
        # the return, so CPython will see this as a syntax error:
        #
        # while True:
        #    break
        #    return
        #
        # But not this:
        #
        # while False:
        #    return
        #
        # See https://bugs.python.org/issue1875

        test_cases.append(
            (
                "if",
                dedent(
                    """
        if True:
            {val}
        """
                ),
            )
        )

        test_cases.append(
            (
                "while",
                dedent(
                    """
        while True:
            {val}
            break
        """
                ),
            )
        )

        test_cases.append(
            (
                "try",
                dedent(
                    """
        try:
            {val}
        except:
            pass
        """
                ),
            )