for (MutableNetwork<Integer, String> network : networksToTest) {
      network.addEdge(1, 2, "1-2a");
      network.addEdge(1, 2, "1-2b");
    }
    assertThat(hasCycle(directedNetwork)).isFalse();
    assertThat(hasCycle(undirectedNetwork)).isTrue(); // cyclic in undirected case
  }

  @Test
  public void hasCycle_cyclicMultigraph() {
    for (MutableNetwork<Integer, String> network : networksToTest) {

   *
   * @return {@code true} if the network was modified as a result of this call
   */
  @CanIgnoreReturnValue
  boolean removeNode(N node);

  /**
   * Removes {@code edge} from this network, if it is present.
   *
   * @return {@code true} if the network was modified as a result of this call
   */
  @CanIgnoreReturnValue
  boolean removeEdge(E edge);

// * use crictl to inspect the pod; this returns the bind-mounted network namespace file.
// * /var/lib/cni/results shows the outputs of CNI plugins; this containers the bind-mounted network namespace file.
//
// Instead, we traverse the procfs. Comments on this method are inline.
func getPodNetNs(pod *corev1.Pod) (string, error) {
	// First, find the network namespace id by looking the interface with the given Pod IP.

  ITER_END=$((NUM_CLUSTERS-1))
  for i in $(seq 0 "$ITER_END"); do
    for j in $(seq 0 "$ITER_END"); do
      if [[ "${j}" -gt "${i}" ]]; then
        NETWORK_ID_I="${CLUSTER_NETWORK_ID[i]}"
        NETWORK_ID_J="${CLUSTER_NETWORK_ID[j]}"
        if [[ "$NETWORK_ID_I" == "$NETWORK_ID_J" ]]; then
          POD_TO_POD_AND_SERVICE_CONNECTIVITY=1
        else
          POD_TO_POD_AND_SERVICE_CONNECTIVITY=0
        fi

package http

import (
	"context"
	"net"
	"syscall"
	"time"

	"golang.org/x/sys/unix"
)

func setTCPParametersFn(opts TCPOptions) func(network, address string, c syscall.RawConn) error {
	return func(network, address string, c syscall.RawConn) error {
		c.Control(func(fdPtr uintptr) {
			// got socket file descriptor to set parameters.
			fd := int(fdPtr)

/**
 * A concrete interceptor chain that carries the entire interceptor chain: all application
 * interceptors, the OkHttp core, all network interceptors, and finally the network caller.
 *
 * If the chain is for an application interceptor then [exchange] must be null. Otherwise it is for
 * a network interceptor and [exchange] must be non-null.
 */
class RealInterceptorChain(
  internal val call: RealCall,

	"encoding/json"
	"fmt"
	"io"
	"net/http"
	"strings"
	"sync"
	"time"

	"istio.io/istio/cni/pkg/constants"
	"istio.io/istio/pkg/log"
	"istio.io/istio/pkg/network"
	"istio.io/istio/pkg/uds"
)

var pluginLog = log.RegisterScope("cni", "CNI network plugin")

type UDSLogger struct {
	mu            sync.Mutex
	loggingServer *http.Server
}

type cniLog struct {
	Level string    `json:"level"`

 *
 * Two instances must be used to get all results for an address.
 *
 * @param network network to use, if not selects the default network.
 */
@RequiresApi(Build.VERSION_CODES.Q)
@ExperimentalOkHttpApi
class AndroidAsyncDns(
  private val dnsClass: AsyncDns.DnsClass,
  private val network: Network? = null,
) : AsyncDns {
  @RequiresApi(Build.VERSION_CODES.Q)
  internal val resolver = DnsResolver.getInstance()

  }

  @Test
  fun networkInterceptorsRewriteRequestToServer() {
    rewriteRequestToServer(true)
  }

  private fun rewriteRequestToServer(network: Boolean) {
    server.enqueue(MockResponse())
    addInterceptor(network) { chain: Interceptor.Chain ->
      val originalRequest = chain.request()
      chain.proceed(
        originalRequest.newBuilder()

//
//nolint:unused
func setTCPParametersFn(opts TCPOptions) func(network, address string, c syscall.RawConn) error {
	return func(network, address string, c syscall.RawConn) error {
		return nil
	}
}

// DialContext is a function to make custom Dial for internode communications
type DialContext func(ctx context.Context, network, address string) (net.Conn, error)