public void NupkgReinstallDoesntRemoveTemplates()
{
const string nupkgToInstallName = "TestNupkgInstallTemplate.0.0.1.nupkg";
const string checkTemplateName = "nupkginstall"; // this is the short name of the template in the nupkg that gets installed.
ITemplateEngineHost host = CreateHostWithVirtualizedHive(HostIdentifier, HostVersion);
Assert.NotNull(host);
ITelemetryLogger telemetryLogger = new TelemetryLogger(null, false);
int initializeResult = New3Command.Run(CommandName, host, telemetryLogger, null, new string[] { });
Assert.Equal(0, initializeResult);
string codebase = typeof(NupkgInstallTests).GetTypeInfo().Assembly.Location;
Uri cb = new Uri(codebase);
string asmPath = cb.LocalPath;
string dir = Path.GetDirectoryName(asmPath);
string pathToInstall = Path.Combine(dir, "TemplateInstallTests", "TestTemplates", nupkgToInstallName);
Assert.True(File.Exists(pathToInstall), $"directory didnt exist: {pathToInstall}");
string[] installArgs = new[]
{
"--install",
pathToInstall
};
// install the test pack
int firstInstallResult = New3Command.Run(CommandName, host, telemetryLogger, null, installArgs);
Assert.Equal(0, firstInstallResult);
EngineEnvironmentSettings environemnt = new EngineEnvironmentSettings(host, x => new SettingsLoader(x));
SettingsLoader settingsLoader = (SettingsLoader)environemnt.SettingsLoader;
IHostSpecificDataLoader hostDataLoader = new MockHostSpecificDataLoader();
// check that the template was installed from the first install.
IReadOnlyCollection <ITemplateMatchInfo> allTemplates = TemplateResolver.PerformAllTemplatesQuery(settingsLoader.UserTemplateCache.TemplateInfo, hostDataLoader);
Assert.Contains(checkTemplateName, allTemplates.Select(t => t.Info.ShortName));
// install the same test pack again
int secondInstallResult = New3Command.Run(CommandName, host, telemetryLogger, null, installArgs);
Assert.Equal(0, secondInstallResult);
settingsLoader.Reload();
// check that the template is still installed after the second install.
IReadOnlyCollection <ITemplateMatchInfo> allTemplatesAfterSecondInstall = TemplateResolver.PerformAllTemplatesQuery(settingsLoader.UserTemplateCache.TemplateInfo, hostDataLoader);
Assert.Contains(checkTemplateName, allTemplatesAfterSecondInstall.Select(t => t.Info.ShortName));
}