"istio.io/istio/pkg/log"
	"istio.io/istio/tools/istio-iptables/pkg/cmd"
	"istio.io/istio/tools/istio-iptables/pkg/config"
	"istio.io/istio/tools/istio-iptables/pkg/dependencies"
)

// getNs is a unit test override variable for interface create.
var getNs = ns.GetNS

// Program defines a method which programs iptables based on the parameters
// provided in Redirect.

// made generalized, and can be integrated in benchmarks/unit tests/go check suite tests.
type TestErrHandler interface {
	testing.TB
}

const (
	// ErasureSDStr is the string which is used as notation for Single node ObjectLayer in the unit tests.
	ErasureSDStr string = "ErasureSD"

	// ErasureTestStr is the string which is used as notation for Erasure ObjectLayer in the unit tests.
	ErasureTestStr string = "Erasure"

func exponentialBackoffWait(r *rand.Rand, unit, cap time.Duration) func(uint) time.Duration {
	if unit > time.Hour {
		// Protect against integer overflow
		panic("unit cannot exceed one hour")
	}
	return func(attempt uint) time.Duration {
		if attempt > 16 {
			// Protect against integer overflow
			attempt = 16
		}
		// sleep = random_between(unit, min(cap, base * 2 ** attempt))

)

type operatorInitArgs struct {
	// inFilenames is the path to the input IstioOperator CR.
	inFilename string

	// common is shared operator args
	common operatorCommonArgs
}

// kubeClients is a unit test override variable for client interfaces creation.
var kubeClients = KubernetesClients

func addOperatorInitFlags(cmd *cobra.Command, args *operatorInitArgs) {

func TestListObjects(t *testing.T) {
	ExecObjectLayerTest(t, testListObjects)
}

// Unit test for ListObjects on VersionedBucket.
func testListObjectsOnVersionedBuckets(obj ObjectLayer, instanceType string, t1 TestErrHandler) {
	_testListObjects(obj, instanceType, t1, true)
}

// Unit test for ListObjects.
func testListObjects(obj ObjectLayer, instanceType string, t1 TestErrHandler) {

	// and kubelet (skippable) traffic would have the same srcip once they got to the pod, and would be indistinguishable.
	//
	// Note that SortedList is used here because the istio sets class has no order guarantees,
	// and our unit tests will flake if rules have a nondeterministic ordering.
	// CLI: -t mangle -A ISTIO_PRERT -s 169.254.7.127 -p tcp -m tcp --dport <PROBEPORT> -j ACCEPT
	//

		return httpsScheme
	}
	return httpScheme
}

// getObjectLocation gets the fully qualified URL of an object.
func getObjectLocation(r *http.Request, domains []string, bucket, object string) string {
	// unit tests do not have host set.
	if r.Host == "" {
		return path.Clean(r.URL.Path)
	}
	proto := handlers.GetSourceScheme(r)
	if proto == "" {
		proto = getURLScheme(globalIsTLS)
	}
	u := &url.URL{

//	Pointer to array: the number of elements in *v (same as len(v)).
//	Slice: the maximum length the slice can reach when resliced;
//	if v is nil, cap(v) is zero.
//	Channel: the channel buffer capacity, in units of elements;
//	if v is nil, cap(v) is zero.
//
// For some arguments, such as a simple array expression, the result can be a
// constant. See the Go language specification's "Length and capacity" section for
// details.

		//
		// import org.apache.spark.sql.SparkSession
		// import org.apache.spark.sql.types.{IntegerType, StringType, StructField, StructType}
		// object SparkJSONRead {
		//   def main(args: Array[String]): Unit = {
		//     val spark:SparkSession = SparkSession.builder()
		//       .appName("SparkByExample")
		//       .master("local[1]").getOrCreate()
		//
		//     spark.sparkContext.setLogLevel("ERROR")

			execClientConfig: loggingConfig,
			args:             strings.Split("clusters httpbin-794b576b6c-qx6pf", " "),
			expectedString:   `config dump has no configuration type`,
			wantException:    true,
		},
		{ // supplying valid pod name retrieves Envoy config (fails because we don't check in Envoy config unit tests)
			execClientConfig: loggingConfig,