public void GetRequiredServiceThrowsOnNoContext()
{
HandlerStub handlerStub = new HandlerStub();
Assert.Null((handlerStub as IViewHandler).MauiContext);
var ex = Assert.Throws <InvalidOperationException>(() => handlerStub.GetRequiredService <IFooService>());
Assert.Contains("the context", ex.Message);
Assert.Contains("MauiContext", ex.Message);
}
public void GetRequiredServiceThrowsOnNoServices()
{
HandlerStub handlerStub = new HandlerStub();
handlerStub.SetMauiContext(new InvalidHandlersContextStub());
Assert.NotNull(handlerStub.MauiContext);
Assert.Null(handlerStub.MauiContext.Services);
var ex = Assert.Throws <InvalidOperationException>(() => handlerStub.GetRequiredService <IFooService>());
Assert.Contains("the service provider", ex.Message);
Assert.Contains("MauiContext", ex.Message);
}
public void GetRequiredServiceRetrievesService()
{
HandlerStub handlerStub = new HandlerStub();
var collection = new MauiServiceCollection();
collection.TryAddSingleton <IMauiHandlersFactory>(new MauiHandlersFactory(null));
collection.TryAddSingleton <IFooService, FooService>();
var provider = new MauiFactory(collection);
handlerStub.SetMauiContext(new HandlersContextStub(provider));
Assert.NotNull(handlerStub.MauiContext);
Assert.NotNull(handlerStub.MauiContext.Services);
var foo = handlerStub.GetRequiredService <IFooService>();
Assert.IsType <FooService>(foo);
}