// nextRevision finds the next valid revision number based on revisions. If the length of revisions
// is 0 this is 1. Otherwise, it is 1 greater than the largest revision's Revision. This method
// assumes that revisions has been sorted by Revision.
func nextRevision(revisions []*apps.ControllerRevision) int64 {
	count := len(revisions)
	if count <= 0 {
		return 1
	}
	return revisions[count-1].Revision + 1
}

		if err != nil {
			return err
		}
	} else {
		kubeClientWithRev = kubeClient
	}

	if uiArgs.revision != "" {
		revisions, err := tag.ListRevisionDescriptions(kubeClient)
		if err != nil {
			return fmt.Errorf("could not list revisions: %s", err)
		}
		if _, exists := revisions[uiArgs.revision]; !exists {
			return errors.New("could not find target revision")
		}
	}

	cache.FlushObjectCaches()

			// Allow all and see if we get an error.
			service.Allow()
			decision, _, err := wh.Authorize(context.Background(), attr)
			if tt.wantAuth {
				if decision != authorizer.DecisionAllow {
					t.Errorf("expected successful authorization")
				}
			} else {
				if decision == authorizer.DecisionAllow {
					t.Errorf("expected failed authorization")
				}
			}
			if tt.wantErr {

	revisions, err := ssc.control.ListRevisions(set)
	if err != nil {
		return err
	}
	orphanRevisions := make([]*apps.ControllerRevision, 0)
	for i := range revisions {
		if metav1.GetControllerOf(revisions[i]) == nil {
			orphanRevisions = append(orphanRevisions, revisions[i])
		}
	}
	if len(orphanRevisions) > 0 {

	"istio.io/istio/pkg/kube/inject"
	"istio.io/istio/pkg/kube/kclient"
	"istio.io/istio/pkg/kube/kclient/clienttest"
	"istio.io/istio/pkg/kube/kubetypes"
	istiolog "istio.io/istio/pkg/log"
	"istio.io/istio/pkg/revisions"
	"istio.io/istio/pkg/test"
	"istio.io/istio/pkg/test/env"
	"istio.io/istio/pkg/test/util/assert"
	"istio.io/istio/pkg/test/util/file"
	"istio.io/istio/pkg/test/util/retry"
)

	// The config client should not make any assumptions about revisions and rely only on
	// exact equality to implement optimistic concurrency of read-write operations.
	//
	// The lifetime of an object of a particular revision depends on the underlying data store.
	// The data store may compactify old revisions in the interest of storage optimization.
	//

			t.goTest.Name()))
		return
	}

	if t.minIstioVersion != "" {
		if !t.ctx.Settings().Revisions.AtLeast(resource.IstioVersion(t.minIstioVersion)) {
			t.goTest.Skipf("Skipping %q: running with min Istio version %q, test requires at least %s",
				t.goTest.Name(), t.ctx.Settings().Revisions.Minimum(), t.minIstioVersion)
		}
	}

	start := time.Now()

		var icpTag string
		// create normalized tags for multiple control plane revisions
		for _, icp := range *icps {
			if icp.Revision != revision {
				continue
			}
			tagVer, err := GetTagVersion(icp.Info.GitTag)
			if err != nil {
				return err
			}
			icpTags = append(icpTags, tagVer)
		}
		// sort different versions of control plane revisions
		sort.Strings(icpTags)

        "incoming_trace_context": ["TRACE_CONTEXT"],
        "outgoing_trace_context": ["TRACE_CONTEXT"],
        "trace_config": {
          "constant_sampler": {
            "decision": "ALWAYS_PARENT"
          },
          "max_number_of_annotations": 200,
          "max_number_of_attributes": 200,
          "max_number_of_message_events": 200,
          "max_number_of_links": 200
        }

	"istio.io/istio/pkg/adsc"
	"istio.io/istio/pkg/config/analysis/incluster"
	"istio.io/istio/pkg/config/schema/collections"
	"istio.io/istio/pkg/config/schema/gvr"
	"istio.io/istio/pkg/log"
	"istio.io/istio/pkg/revisions"
)

// URL schemes supported by the config store
type ConfigSourceAddressScheme string

const (
	// fs:///PATH will load local files. This replaces --configDir.
	// example fs:///tmp/configroot