public void MapDiagnosticSeverityTest()
        {
            var level = ScriptFileMarkerLevel.Error;

            Assert.Equal(DiagnosticsHelper.MapDiagnosticSeverity(level), DiagnosticSeverity.Error);
            level = ScriptFileMarkerLevel.Warning;
            Assert.Equal(DiagnosticsHelper.MapDiagnosticSeverity(level), DiagnosticSeverity.Warning);
            level = ScriptFileMarkerLevel.Information;
            Assert.Equal(DiagnosticsHelper.MapDiagnosticSeverity(level), DiagnosticSeverity.Information);
            level = (ScriptFileMarkerLevel)100;
            Assert.Equal(DiagnosticsHelper.MapDiagnosticSeverity(level), DiagnosticSeverity.Error);
        }