* Returns null if the domain is a public suffix or a private address.
   *
   * Here are some examples:
   *
   * ```java
   * assertEquals("google.com", getEffectiveTldPlusOne("google.com"));
   * assertEquals("google.com", getEffectiveTldPlusOne("www.google.com"));
   * assertNull(getEffectiveTldPlusOne("com"));
   * assertNull(getEffectiveTldPlusOne("localhost"));

    assertEquals("text", mediaType.type)
    assertEquals("plain", mediaType.subtype)
    assertEquals("UTF-8", mediaType.charsetName())
    assertEquals("utf-8", mediaType.parameter("charset"))
    assertEquals("1", mediaType.parameter("a"))
    assertEquals("2", mediaType.parameter("b"))
    assertEquals("3", mediaType.parameter("c"))
    assertEquals("utf-8", mediaType.parameter("CHARSET"))

    val response = client.newCall(request).execute()

    response.use {
      assertEquals(200, response.code)
      if (PlatformVersion.majorVersion > 11) {
        assertEquals(TlsVersion.TLS_1_3, response.handshake?.tlsVersion)
      }
      if (PlatformVersion.majorVersion > 8) {
        assertEquals(Protocol.HTTP_2, response.protocol)
      }

    val buffer = ByteArray(1024)
    assertFailsWith<IOException> {
      while (responseBody.read(buffer) != -1) {
      }
    }.also { expected ->
      assertEquals(cancelMode == INTERRUPT, Thread.interrupted())
    }
    responseBody.close()
    assertEquals(if (connectionType == H2) 1 else 0, client.connectionPool.connectionCount())
  }

  @ParameterizedTest
  @ArgumentsSource(CancelModelParamProvider::class)

import okhttp3.internal.http2.Huffman.encodedLength
import okio.Buffer
import okio.ByteString
import okio.ByteString.Companion.encodeUtf8
import okio.ByteString.Companion.toByteString
import org.junit.jupiter.api.Assertions.assertEquals
import org.junit.jupiter.api.Test

/** Original version of this class was lifted from `com.twitter.hpack.HuffmanTest`.  */
class HuffmanTest {
  @Test
  fun roundTripForRequestAndResponse() {

 */
package okhttp3.internal.publicsuffix

import assertk.assertThat
import assertk.assertions.isEqualTo
import assertk.assertions.isNull
import assertk.assertions.isTrue
import kotlin.test.assertEquals
import kotlin.test.assertFailsWith
import okhttp3.internal.toCanonicalHost
import okio.Buffer
import okio.FileSystem
import okio.GzipSource
import okio.Path.Companion.toPath
import okio.buffer
import okio.use