* overflow and return null.
   */
  @Test fun overflowEncodingOversizedLabel() {
    val a1000 = "a".repeat(1000)
    val a1000MaxCodePoint = a1000 + "\udbff\udfff"
    testEncodeDecode(
      a1000MaxCodePoint,
      "xn--$a1000-nc89312g",
    )
    assertNull(
      Punycode.encode(a1000MaxCodePoint.repeat(2)),
    )
  }

  @Test fun invalidPunycode() {
    assertNull(Punycode.decode("xn--ls8h="))
  }

 * limitations under the License.
 */
package okhttp3.internal.ws

import assertk.assertThat
import assertk.assertions.isEqualTo
import java.util.Random
import kotlin.test.assertFailsWith
import okhttp3.TestUtil.repeat
import okhttp3.internal.format
import okhttp3.internal.ws.WebSocketProtocol.OPCODE_BINARY
import okhttp3.internal.ws.WebSocketProtocol.OPCODE_TEXT
import okhttp3.internal.ws.WebSocketProtocol.PAYLOAD_BYTE_MAX

    if (!commaPrefixed && (commaSuffixed || exhausted())) {
      result.add(
        Challenge(
          schemeName,
          Collections.singletonMap<String, String>(null, peek + "=".repeat(eqCount)),
        ),
      )
      peek = null
      continue
    }

    // It's a series of parameter names and values.
    val parameters = mutableMapOf<String?, String>()

 * Connection pooling reduces request latency (if HTTP/2 isn’t available).
 * Transparent GZIP shrinks download sizes.
 * Response caching avoids the network completely for repeat requests.

OkHttp perseveres when the network is troublesome: it will silently recover from common connection
problems. If your service has multiple IP addresses, OkHttp will attempt alternate addresses if the

  @JvmStatic
  fun headerEntries(vararg elements: String?): List<Header> {
    return List(elements.size / 2) { Header(elements[it * 2]!!, elements[it * 2 + 1]!!) }
  }

  @JvmStatic
  fun repeat(
    c: Char,
    count: Int,
  ): String {
    val array = CharArray(count)
    Arrays.fill(array, c)
    return String(array)
  }

  /**

    val deflater = MessageDeflater(false)
    val inflater = MessageInflater(false)

    val goldenValue1 = "Hello deflate!".repeat(100).encodeUtf8()
    val deflatedValue1 = deflater.deflate(goldenValue1)
    assertThat(inflater.inflate(deflatedValue1)).isEqualTo(goldenValue1)

    val goldenValue2 = "Hello deflate?".repeat(100).encodeUtf8()
    val deflatedValue2 = deflater.deflate(goldenValue2)

          e: IOException,
        ) {}

        override fun onResponse(
          call: Call,
          response: Response,
        ) {
          response.close()
        }
      }
    repeat(10_000) {
      okhttp.newCall(Request.Builder().url(server.url("/")).build()).enqueue(callback)
    }
    okhttp.dispatcher.executorService.shutdown()
  }