if dir == model.TrafficDirectionInbound {
			// Append all inbound clusters because in both stow/delta we always build all inbound clusters.
			// In reality, the delta building is only for outbound clusters. We need to revist here once we support delta for inbound.
			// So deletedClusters.Difference(builtClusters) would give us the correct deleted inbound clusters.
			deletedClusters.Insert(cluster)

	var logFiltered string
	if !req.Delta.IsEmpty() && !requiresResourceNamesModification(w.TypeUrl) {
		// Some types opt out of this and natively handle req.Delta
		logFiltered = " filtered:" + strconv.Itoa(len(w.ResourceNames)-len(req.Delta.Subscribed))
		w = &model.WatchedResource{
			TypeUrl:       w.TypeUrl,
			ResourceNames: req.Delta.Subscribed.UnsortedList(),
		}
	}

	var res model.Resources

		// Both SotW and Delta did not respond, nothing to compare
		return
	}
	newByName := slices.GroupUnique(sotwRes, (*discovery.Resource).GetName)
	curByName := slices.GroupUnique(current, (*discovery.Resource).GetName)

	watched := sets.New(w.ResourceNames...)

	details := fmt.Sprintf("last:%v sotw:%v delta:%v-%v", len(current), len(sotwRes), len(deltaRes), len(deleted))
	wantDeleted := sets.New[string]()

  EXPECT_TRUE(result.ok());
  EXPECT_EQ(compilation_status.Delta(kMlirCombinedMlirSuccess), 1);
  EXPECT_EQ(compilation_status.Delta(kMlirCombinedMlirFailure), 0);
  EXPECT_EQ(compilation_status.Delta(kMlirCombinedOldSuccess), 1);
  EXPECT_EQ(compilation_status.Delta(kMlirCombinedOldFailure), 0);
  // Old bridge should never be called at all.
  EXPECT_EQ(compilation_status.Delta(kOldBridgeMlirFilteredFailure), 0);

	).Get()

	// EnableUnsafeDeltaTest enables runtime checks to test Delta XDS efficiency. This should never be enabled in
	// production.
	EnableUnsafeDeltaTest = env.Register(
		"UNSAFE_PILOT_ENABLE_DELTA_TEST",
		false,
		"If enabled, addition runtime tests for Delta XDS efficiency are added. "+
			"These checks are extremely expensive, so this should be used only for testing, not production.",

	return
}

// Delete takes name of the example and deletes it. Returns an error if one occurs.
func (c *examples) Delete(ctx context.Context, name string, opts metav1.DeleteOptions) error {
	return c.client.Delete().
		Namespace(c.ns).
		Resource("examples").
		Name(name).
		Body(&opts).
		Do(ctx).
		Error()
}

// DeleteCollection deletes a collection of objects.

}

// Delete takes name of the customResourceDefinition and deletes it. Returns an error if one occurs.
func (c *customResourceDefinitions) Delete(ctx context.Context, name string, opts metav1.DeleteOptions) error {
	return c.client.Delete().
		Resource("customresourcedefinitions").
		Name(name).
		Body(&opts).
		Do(ctx).
		Error()
}

// DeleteCollection deletes a collection of objects.

}

// Delete takes name of the customResourceDefinition and deletes it. Returns an error if one occurs.
func (c *customResourceDefinitions) Delete(ctx context.Context, name string, opts v1.DeleteOptions) error {
	return c.client.Delete().
		Resource("customresourcedefinitions").
		Name(name).
		Body(&opts).
		Do(ctx).
		Error()
}

// DeleteCollection deletes a collection of objects.

		creates, deletes := manager.GetCounts(name)
		switch i {
		case 2:
			if creates != 0 || deletes != 0 {
				t.Errorf("expected 0 creation and 0 deletion of %q, got %d, %d", name, creates, deletes)
			}
		default:
			if creates != 0 || deletes != 1 {
				t.Errorf("expected 0 creation and one deletion of %q, got %d, %d", name, creates, deletes)
			}
		}
	}
}

				proxy.PrevSidecarScope.SetDestinationRulesForTesting(tc.prevConfigs)
			}
			clusters, removed, delta := cg.DeltaClusters(proxy, tc.configUpdated,
				&model.WatchedResource{ResourceNames: tc.watchedResourceNames})
			if delta != tc.usedDelta {
				t.Errorf("un expected delta, want %v got %v", tc.usedDelta, delta)
			}
			assert.Equal(t, removed, tc.removedClusters)