internal static bool IsInstalled()

in src/Microsoft.VisualStudio.Extensibility.Testing.Xunit.Shared/Threading/IdeTestCaseBase.cs [93:131]

• 31 lines of code
• 7 McCabe index (conditional complexity)

        internal static bool IsInstalled(VisualStudioVersion visualStudioVersion)
        {
            string dteKey;

            switch (visualStudioVersion)
            {
            case VisualStudioVersion.VS2012:
                dteKey = "VisualStudio.DTE.11.0";
                break;

            case VisualStudioVersion.VS2013:
                dteKey = "VisualStudio.DTE.12.0";
                break;

            case VisualStudioVersion.VS2015:
                dteKey = "VisualStudio.DTE.14.0";
                break;

            case VisualStudioVersion.VS2017:
                dteKey = "VisualStudio.DTE.15.0";
                break;

            case VisualStudioVersion.VS2019:
                dteKey = "VisualStudio.DTE.16.0";
                break;

            case VisualStudioVersion.VS2022:
                dteKey = "VisualStudio.DTE.17.0";
                break;

            default:
                throw new ArgumentException();
            }

            using (var key = Registry.ClassesRoot.OpenSubKey(dteKey))
            {
                return key != null;
            }
        }