assertThat(peer.takeFrame().type).isEqualTo(Http2.TYPE_PING)
    assertThat(peer.takeFrame().type).isEqualTo(Http2.TYPE_HEADERS)
    assertThat(peer.takeFrame().type).isEqualTo(Http2.TYPE_PING)
    assertThat(peer.takeFrame().type).isEqualTo(Http2.TYPE_DATA)
    assertThat(peer.takeFrame().type).isEqualTo(Http2.TYPE_RST_STREAM)
  }

  @Test fun outgoingWritesAreBatched() {

import okhttp3.internal.http.HTTP_CONTINUE
import okhttp3.internal.http.RealInterceptorChain
import okhttp3.internal.http.RequestLine
import okhttp3.internal.http.StatusLine
import okhttp3.internal.http.promisesBody
import okhttp3.internal.http2.Header.Companion.RESPONSE_STATUS_UTF8
import okhttp3.internal.http2.Header.Companion.TARGET_AUTHORITY
import okhttp3.internal.http2.Header.Companion.TARGET_AUTHORITY_UTF8

import okhttp3.internal.connection.asBufferedSocket
import okhttp3.internal.http2.Header
import okhttp3.internal.http2.Http2Connection
import okhttp3.internal.http2.Http2Stream
import okhttp3.internal.platform.Platform
import okhttp3.tls.internal.TlsUtil.localhost
import okio.buffer
import okio.source

/** A basic HTTP/2 server that serves the contents of a local directory.  */
class Http2Server(

import java.util.logging.LogRecord
import java.util.logging.Logger
import okhttp3.OkHttpClient
import okhttp3.internal.SuppressSignatureCheck
import okhttp3.internal.concurrent.TaskRunner
import okhttp3.internal.http2.Http2
import okhttp3.internal.platform.android.AndroidLog.androidLog

private val LogRecord.androidLevel: Int
  get() =
    when {
      level.intValue() > Level.INFO.intValue() -> Log.WARN

import okhttp3.internal.http.ExchangeCodec
import okhttp3.internal.http.RealInterceptorChain
import okhttp3.internal.http1.Http1ExchangeCodec
import okhttp3.internal.http2.ConnectionShutdownException
import okhttp3.internal.http2.ErrorCode
import okhttp3.internal.http2.FlowControlListener
import okhttp3.internal.http2.Http2Connection
import okhttp3.internal.http2.Http2ExchangeCodec
import okhttp3.internal.http2.Http2Stream

import okhttp3.internal.concurrent.TaskRunner.RealBackend
import okhttp3.internal.concurrent.withLock
import okhttp3.internal.http2.Http2
import okhttp3.internal.http2.Http2Connection
import okhttp3.internal.http2.Http2ConnectionTest
import okhttp3.internal.http2.MockHttp2Peer
import okhttp3.internal.http2.Settings
import org.junit.jupiter.api.AfterEach
import org.junit.jupiter.api.Disabled
import org.junit.jupiter.api.Test

import okhttp3.Request
import okhttp3.TlsVersion
import okhttp3.brotli.Brotli
import okhttp3.dnsoverhttps.DnsOverHttps
import okhttp3.internal.concurrent.TaskRunner
import okhttp3.internal.http2.Http2
import okhttp3.internal.platform.Android10Platform
import okhttp3.internal.platform.AndroidPlatform
import okhttp3.internal.platform.Platform
import okhttp3.internal.platform.PlatformRegistry

import okhttp3.internal.concurrent.wait
import okhttp3.internal.concurrent.withLock
import okhttp3.internal.connection.BufferedSocket
import okhttp3.internal.http2.ErrorCode.REFUSED_STREAM
import okhttp3.internal.http2.Settings.Companion.DEFAULT_INITIAL_WINDOW_SIZE
import okhttp3.internal.http2.flowcontrol.WindowCounter
import okhttp3.internal.ignoreIoExceptions
import okhttp3.internal.okHttpName
import okhttp3.internal.platform.Platform

```

2. Turn on logs with logcat

```
$ adb logcat '*:E' OkHttp:D Http2:D TestRunner:D TaskRunner:D OkHttpTest:D GnssHAL_GnssInterface:F DeviceStateChecker:F memtrack:F
...
01-01 12:53:32.811 10999 11089 D OkHttp  : [49 ms] responseHeadersEnd: Response{protocol=h2, code=200, message=, url=https://1.1.1.1/dns-query?dns=AAABAAABAAAAAAAAA3d3dwhmYWNlYm9vawNjb20AABwAAQ}

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

import java.io.IOException
import java.net.ProtocolException
import okhttp3.Headers
import okhttp3.Interceptor
import okhttp3.Response
import okhttp3.TrailersSource
import okhttp3.internal.UnreadableResponseBody
import okhttp3.internal.http2.ConnectionShutdownException
import okhttp3.internal.skipAll
import okio.buffer