public void testFirst() {
    assertEquals(a.getKey(), navigableMap.firstKey());
  }

  @CollectionSize.Require(SEVERAL)
  public void testLast() {
    assertEquals(c.getKey(), navigableMap.lastKey());
  }

  @CollectionSize.Require(absent = ZERO)
  public void testHeadMapExclusive() {
    assertFalse(navigableMap.headMap(a.getKey()).containsKey(a.getKey()));
  }

  @CollectionSize.Require(absent = ZERO)

	if err := pkiutil.WriteCertAndKey(
		dirPKI,
		caName,
		testCACert,
		testCAKey); err != nil {
		t.Fatalf("couldn't write out certificate %s to %s", caName, dirPKI)
	}

	// creates a certificate and then embeds it into a kubeconfig file
	cert := writeTestKubeconfig(t, dirKubernetes, "test", testCACert, testCAKey, time.Time{}, time.Time{})

	// Creates a KubeconfigReadWriter

  public void testFirst() {
    assertEquals(a.getKey(), navigableMap.firstKey());
  }

  @CollectionSize.Require(SEVERAL)
  public void testLast() {
    assertEquals(c.getKey(), navigableMap.lastKey());
  }

  @CollectionSize.Require(absent = ZERO)
  public void testHeadMapExclusive() {
    assertFalse(navigableMap.headMap(a.getKey()).containsKey(a.getKey()));
  }

  @CollectionSize.Require(absent = ZERO)

      @SuppressWarnings("unchecked")
      K castKey = (K) key;

      if (!isExpired(stamped)) {
        alertListenerIfPresent(castKey, value, RemovalCause.EXPLICIT);
        return value;
      }

      alertListenerIfPresent(castKey, value, RemovalCause.EXPIRED);
    }
    return null;
  }

  @Override

	case "openbsd", "freebsd", "aix":
		t.Skipf("%v does not support reading deleted binary name", runtime.GOOS)
	}
	t.Parallel()

	dir := t.TempDir()

	src := filepath.Join(dir, "testdel.go")
	exe := filepath.Join(dir, "testdel.exe")

	err := os.WriteFile(src, []byte(testExecutableDeletion), 0666)
	if err != nil {
		t.Fatal(err)
	}

			if !ok || v != v1 {
				t.Errorf("at iteration %d got %d, %d want %d, %d", cnt, i, v, i, v1)
			}
			cnt++
		}
		if cnt != size {
			t.Errorf("read %d values expected %d", cnt, size)
		}
	}
}

func TestKeys(t *testing.T) {
	for size := 0; size < 10; size++ {
		var want []int
		m := make(map[int]int)
		for i := range size {
			m[i] = i
			want = append(want, i)
		}

		var got []int
		for k := range Keys(m) {

	}
	xlMeta.Stat = StatInfo{
		Size:    int64(20),
		ModTime: UTCNow(),
	}
	// Set meta data.
	xlMeta.Meta = make(map[string]string)
	xlMeta.Meta["testKey1"] = "val1"
	xlMeta.Meta["testKey2"] = "val2"
	return xlMeta
}

func (m *xlMetaV1Object) AddTestObjectCheckSum(partNumber int, algorithm BitrotAlgorithm, hash string) {
	checksum, err := hex.DecodeString(hash)
	if err != nil {

    return navigableKeySet();
  }

  @Override
  public @Nullable Entry<K, V> lastEntry() {
    return delegate.lastEntry();
  }

  @Override
  public K lastKey() {
    return delegate.lastKey();
  }

  @Override
  public @Nullable Entry<K, V> lowerEntry(K key) {
    return delegate.lowerEntry(checkValid(key));
  }

  @Override
  public @Nullable K lowerKey(K key) {

		if len(completed.Authentication.ServiceAccounts.KeyFiles) == 0 && completed.SecureServing.ServerCert.CertKey.KeyFile != "" {
			if kubeauthenticator.IsValidServiceAccountKeyFile(completed.SecureServing.ServerCert.CertKey.KeyFile) {
				completed.Authentication.ServiceAccounts.KeyFiles = []string{completed.SecureServing.ServerCert.CertKey.KeyFile}
			} else {
				klog.Warning("No TLS key provided, service account token authentication disabled")

    return navigableKeySet();
  }

  @Override
  public @Nullable Entry<K, V> lastEntry() {
    return delegate.lastEntry();
  }

  @Override
  public K lastKey() {
    return delegate.lastKey();
  }

  @Override
  public @Nullable Entry<K, V> lowerEntry(K key) {
    return delegate.lowerEntry(checkValid(key));
  }

  @Override
  public @Nullable K lowerKey(K key) {