public void WhenGettingServicesWithoutOverrideThenReturnsSameAsOriginals()
{
ProcessorConfiguration config = new ProcessorConfiguration();
HandlerServices services = new HandlerServices(config.Services);
// Act
var localVal = services.GetServices(typeof(IFilterProvider));
var globalVal = config.Services.GetServices(typeof(IFilterProvider));
// Assert
// Local handler didn't override, should get same value as global case.
Assert.Equal(localVal.ToArray(), globalVal.ToArray());
}
public void WhenAddingServiceToOverrideThenOriginalIsNotMutated()
{
// Handler Services has "copy on write" semantics for inherited list.
// It can get the inherited list and mutate it.
ProcessorConfiguration config = new ProcessorConfiguration();
ServicesContainer global = config.Services;
HandlerServices services = new HandlerServices(global);
IFilterProvider resolver = new Mock <IFilterProvider>().Object;
// Act
services.Add(typeof(IFilterProvider), resolver); // appends to end
// Assert
IEnumerable <object> original = global.GetServices(typeof(IFilterProvider));
object[] modified = services.GetServices(typeof(IFilterProvider)).ToArray();
Assert.True(original.Count() > 1);
object[] expected = original.Concat(new object[] { resolver }).ToArray();
Assert.Equal(expected, modified);
}