public TestBase()
{
_typeCache = Substitute.For <ITypeCache>();
_referenceMap = Substitute.For <IReferenceMap>();
_converter = new JsiiToFrameworkConverter(_typeCache);
IServiceCollection serviceCollection = new ServiceCollection();
serviceCollection.AddSingleton <ITypeCache>(_typeCache);
serviceCollection.AddSingleton <IReferenceMap>(_referenceMap);
serviceCollection.AddSingleton <IJsiiToFrameworkConverter>(_converter);
IServiceProvider serviceProvider = serviceCollection.BuildServiceProvider();
ServiceContainer.ServiceProviderOverride = serviceProvider;
_typeCache.GetFrameworkType(Arg.Is <TypeReference>(r => r.Primitive == PrimitiveType.Any)).Returns(typeof(object));
_typeCache.GetFrameworkType(Arg.Is <TypeReference>(r => r.Primitive == PrimitiveType.String)).Returns(typeof(string));
}