public void ShouldInitializeModuleOnDemand()
{
var loader = new MockModuleInitializer();
var onDemandModule = CreateModuleInfo("NeedsRetrieval", InitializationMode.OnDemand);
var catalog = new MockModuleCatalog { Modules = { onDemandModule } };
ModuleManager manager = new ModuleManager(loader, catalog, new MockLogger());
var moduleRetriever = new MockModuleTypeLoader();
manager.ModuleTypeLoaders = new List<IModuleTypeLoader> { moduleRetriever };
manager.Run();
Assert.IsFalse(loader.InitializeCalled);
Assert.AreEqual(0, moduleRetriever.LoadedModules.Count);
manager.LoadModule("NeedsRetrieval");
Assert.AreEqual(1, moduleRetriever.LoadedModules.Count);
Assert.IsTrue(loader.InitializeCalled);
Assert.AreEqual(1, loader.InitializedModules.Count);
Assert.AreEqual(onDemandModule, loader.InitializedModules[0]);
}
public void InvalidOnDemandModuleNameThrows()
{
var loader = new MockModuleInitializer();
var catalog = new MockModuleCatalog { Modules = new List<ModuleInfo> { CreateModuleInfo("Missing", InitializationMode.OnDemand) } };
ModuleManager manager = new ModuleManager(loader, catalog, new MockLogger());
var moduleTypeLoader = new MockModuleTypeLoader();
manager.ModuleTypeLoaders = new List<IModuleTypeLoader> { moduleTypeLoader };
manager.Run();
manager.LoadModule("NonExistent");
}
public void ShouldWorkIfModuleLoadsAnotherOnDemandModuleWhenInitializing()
{
var initializer = new StubModuleInitializer();
var onDemandModule = CreateModuleInfo(typeof(MockModule), InitializationMode.OnDemand);
onDemandModule.ModuleName = "OnDemandModule";
var moduleThatLoadsOtherModule = CreateModuleInfo(typeof(MockModule), InitializationMode.WhenAvailable);
var catalog = new MockModuleCatalog { Modules = { moduleThatLoadsOtherModule, onDemandModule } };
ModuleManager manager = new ModuleManager(initializer, catalog, new MockLogger());
bool onDemandModuleWasInitialized = false;
initializer.Initialize = m =>
{
if (m == moduleThatLoadsOtherModule)
{
manager.LoadModule("OnDemandModule");
}
else if (m == onDemandModule)
{
onDemandModuleWasInitialized = true;
}
};
manager.Run();
Assert.IsTrue(onDemandModuleWasInitialized);
}
public void ShouldNotLoadModuleThatNeedsRetrievalTwice()
{
var loader = new MockModuleInitializer();
var onDemandModule = CreateModuleInfo("ModuleThatNeedsRetrieval", InitializationMode.OnDemand);
var catalog = new MockModuleCatalog { Modules = { onDemandModule } };
var manager = new ModuleManager(loader, catalog, new MockLogger());
var moduleTypeLoader = new MockModuleTypeLoader();
manager.ModuleTypeLoaders = new List<IModuleTypeLoader> { moduleTypeLoader };
manager.Run();
manager.LoadModule("ModuleThatNeedsRetrieval");
moduleTypeLoader.RaiseLoadModuleCompleted(new LoadModuleCompletedEventArgs(onDemandModule, null));
loader.InitializeCalled = false;
manager.LoadModule("ModuleThatNeedsRetrieval");
Assert.IsFalse(loader.InitializeCalled);
}
public void ShouldNotLoadSameModuleTwice()
{
var loader = new MockModuleInitializer();
var onDemandModule = CreateModuleInfo(typeof(MockModule), InitializationMode.OnDemand);
var catalog = new MockModuleCatalog { Modules = { onDemandModule } };
var manager = new ModuleManager(loader, catalog, new MockLogger());
manager.Run();
manager.LoadModule("MockModule");
loader.InitializeCalled = false;
manager.LoadModule("MockModule");
Assert.IsFalse(loader.InitializeCalled);
}
public void EmptyOnDemandModuleReturnedThrows()
{
var loader = new MockModuleInitializer();
var catalog = new MockModuleCatalog { CompleteListWithDependencies = modules => new List<ModuleInfo>() };
ModuleManager manager = new ModuleManager(loader, catalog, new MockLogger());
var moduleRetriever = new MockModuleTypeLoader();
manager.ModuleTypeLoaders = new List<IModuleTypeLoader> { moduleRetriever };
manager.Run();
manager.LoadModule("NullModule");
}