t.Errorf("default providers deep merge failed, got %v", got.DefaultProviders.GetMetrics())
	}
	if !cmp.Equal(getExtensionProviders(got.ExtensionProviders), []string{"prometheus", "stackdriver", "envoy", "sd"}, protocmp.Transform()) {
		t.Errorf("extension providers deep merge failed, got %v", getExtensionProviders(got.ExtensionProviders))
	}
	if len(got.TrustDomainAliases) != 2 {
		t.Errorf("trust domain aliases deep merge failed")
	}