public void DoNotUnloadBundleThatHasNotBeenLoaded_DoNotCallLoadManifest()
        {
            _fixture.Unload(AssetBundleName);

            Assert.IsFalse(_cachedLoader.Received(1).Unload(Arg.Any <string>()));
            _bundleManifestLoader.DidNotReceive().Load();
            _bundleManifest.DidNotReceive().GetAllDependencies(Arg.Any <string>());
            _cachedLoader.DidNotReceive().UnloadDependency(Arg.Any <string>(), Arg.Any <string>());
        }