public void DisableReadyToRun() { #if NETCOREAPP2 || NETCOREAPP3_0 return; #endif if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) { return; } MethodBase clampMethod = typeof(Math).GetMethod("Clamp", new[] { typeof(int), typeof(int), typeof(int) }); bool disabled = MethodHelper.DisableReadyToRun(clampMethod); Assert.True(disabled); bool isClampCompiled = false; JitexManager.AddMethodResolver(context => { if (context.Method.Name == clampMethod.Name) { isClampCompiled = true; } }); Math.Clamp(1, 1, 1); Assert.True(isClampCompiled, "Method was not compiled."); }