def test_summary_s_alias(self, pytester: Pytester) -> None:
        """Test that 's' and 'S' report chars are aliases and don't show up twice in the summary"""
        pytester.makepyfile(
            """
            import pytest

            @pytest.mark.skip
            def test():
                pass
            """
        )
        result = pytester.runpytest("-rsS")
        expected = "SKIPPED [1] test_summary_s_alias.py:3: unconditional skip"
        result.stdout.fnmatch_lines([expected])
        assert result.stdout.lines.count(expected) == 1
Test that 's' and 'S' report chars are aliases and don't show up twice in the summary
testing/test_terminal.py