}

    FLAGS[FLAG_END_HEADERS] = "END_HEADERS" // Same as END_PUSH_PROMISE.
    FLAGS[FLAG_PRIORITY] = "PRIORITY" // Same as FLAG_COMPRESSED.
    FLAGS[FLAG_END_HEADERS or FLAG_PRIORITY] = "END_HEADERS|PRIORITY" // Only valid on HEADERS.
    val frameFlags = intArrayOf(FLAG_END_HEADERS, FLAG_PRIORITY, FLAG_END_HEADERS or FLAG_PRIORITY)

    for (frameFlag in frameFlags) {
      for (prefixFlag in prefixFlags) {

      "00011110",
      "00011111",
      "PRIORITY",
      "END_STREAM|PRIORITY",
      "00100010",
      "00100011",
      "END_HEADERS|PRIORITY",
      "END_STREAM|END_HEADERS|PRIORITY",
      "00100110",
      "00100111",
      "00101000",
      "END_STREAM|PRIORITY|PADDED",
      "00101010",
      "00101011",
      "00101100",
      "END_STREAM|END_HEADERS|PRIORITY|PADDED",
      "00101110",

  priority: Int = Log.INFO,
  tag: String = "OkHttp",
) = LoggingEventListener.Factory { Log.println(priority, tag, it) }

/**
 * An OkHttp [HttpLoggingInterceptor], with android Log as the target.
 */
fun HttpLoggingInterceptor.Companion.androidLogging(
  priority: Int = Log.INFO,
  tag: String = "OkHttp",

    ) {
      check(type == -1)
      this.type = Http2.TYPE_WINDOW_UPDATE
      this.streamId = streamId
      this.windowSizeIncrement = windowSizeIncrement
    }

    override fun priority(
      streamId: Int,
      streamDependency: Int,
      weight: Int,
      exclusive: Boolean,
    ) {
      throw UnsupportedOperationException()
    }

    override fun pushPromise(

    debugData: ByteString,
  ) {
    fail("")
  }

  override fun windowUpdate(
    streamId: Int,
    windowSizeIncrement: Long,
  ) {
    fail("")
  }

  override fun priority(
    streamId: Int,
    streamDependency: Int,
    weight: Int,
    exclusive: Boolean,
  ) {
    fail("")
  }

  override fun pushPromise(
    streamId: Int,
    associatedStreamId: Int,

import android.net.http.HttpEngine
import android.net.http.HttpException
import android.net.http.QuicOptions
import android.net.http.UrlRequest
import android.net.http.UrlRequest.Callback
import android.net.http.UrlRequest.REQUEST_PRIORITY_MEDIUM
import android.net.http.UrlResponseInfo
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.filters.SdkSuppress
import androidx.test.platform.app.InstrumentationRegistry

    frame.writeByte(FLAG_END_HEADERS or FLAG_PRIORITY)
    frame.writeInt(expectedStreamId and 0x7fffffff)
    frame.writeInt(0) // Independent stream.
    frame.writeByte(255) // Heaviest weight, zero-indexed.
    frame.writeAll(headerBytes)
    reader.nextFrame(
      requireSettings = false,
      object : BaseTestHandler() {
        override fun priority(
          streamId: Int,
          streamDependency: Int,

    )

    /**
     * Called when reading a headers or priority frame. This may be used to change the stream's
     * weight from the default (16) to a new value.
     *
     * @param streamId stream which has a priority change.
     * @param streamDependency the stream ID this stream is dependent on.
     * @param weight relative proportion of priority in `[1..256]`.

   * `promisedStreamId` to which response frames will be delivered. Push promise frames are sent as
   * a part of the response to `streamId`. The `promisedStreamId` has a priority of one greater than
   * `streamId`.
   *
   * @param streamId client-initiated stream ID.  Must be an odd number.
   * @param promisedStreamId server-initiated stream ID.  Must be an even number.

            stream.addBytesToWriteWindow(windowSizeIncrement)
          }
        }
      }
    }

    override fun priority(
      streamId: Int,
      streamDependency: Int,
      weight: Int,
      exclusive: Boolean,
    ) {
      // TODO: honor priority.
    }

    override fun pushPromise(
      streamId: Int,
      promisedStreamId: Int,
      requestHeaders: List<Header>,