public void ActualInstall() { // Use actual files and registry var svr = new SupportedRVersionRange(3, 2, 3, 9); var engine = new RInstallation().GetCompatibleEngines(svr).FirstOrDefault(); engine.Should().NotBeNull(); engine.Name.Should().NotBeNullOrEmpty(); engine.Version.Major.Should().BeGreaterOrEqualTo(3); engine.Version.Minor.Should().BeGreaterOrEqualTo(2); Directory.Exists(engine.InstallPath).Should().BeTrue(); Directory.Exists(engine.BinPath).Should().BeTrue(); string path = Path.Combine(engine.InstallPath, @"bin\x64"); Directory.Exists(path).Should().BeTrue(); }