*  Fix: Reliably update and invalidate the disk cache on windows. As originally designed our
    internal `DiskLruCache` assumes an inode-like file system, where it's fine to delete files that
    are currently being read or written. On Windows the file system forbids this so we must be more
    careful when deleting and renaming files.

[2020-01-01 00:00:00] >> 0x00000000     6 SETTINGS
[2020-01-01 00:00:00] >> 0x00000000     4 WINDOW_UPDATE
[2020-01-01 00:00:00] >> 0x00000003    47 HEADERS       END_STREAM|END_HEADERS
[2020-01-01 00:00:00] << 0x00000000     6 SETTINGS
[2020-01-01 00:00:00] << 0x00000000     0 SETTINGS      ACK
[2020-01-01 00:00:00] << 0x00000000     4 WINDOW_UPDATE
[2020-01-01 00:00:00] >> 0x00000000     0 SETTINGS      ACK

      MockResponse.Builder()
        .body(Buffer().write(ByteArray(Http2Connection.OKHTTP_CLIENT_WINDOW_SIZE + 1)))
        .build(),
    )
    server.enqueue(
      MockResponse(body = "abc"),
    )
    val call1 = client.newCall(Request(server.url("/")))
    val response1 = call1.execute()
    waitForDataFrames(Http2Connection.OKHTTP_CLIENT_WINDOW_SIZE)

  }

  @Test
  @Throws(Exception::class)
  fun serverMaxWindowBitsTooLow() {
    extensionNegotiationFailure("permessage-deflate; server_max_window_bits=7")
  }

  @Test
  @Throws(Exception::class)
  fun serverMaxWindowBitsTooHigh() {
    extensionNegotiationFailure("permessage-deflate; server_max_window_bits=16")
  }

  @Test

class WindowCounter(
  val streamId: Int,
) {
  /** The total number of bytes consumed. */
  var total: Long = 0L
    private set

  /** The total number of bytes acknowledged by outgoing `WINDOW_UPDATE` frames. */
  var acknowledged: Long = 0L
    private set

  val unacknowledged: Long
    @Synchronized get() = total - acknowledged

  @Synchronized
  fun update(
    total: Long = 0,

```

2. Run an Emulator using Android Studio or from command line.

```
$ emulator -no-window -no-snapshot-load @pixel5
```

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
...

   recover from another I/O failure.
 * Fix problems where spdy/3.1 headers may not have been compressed properly.
 * Fix problems with spdy/3.1 and http/2 where the wrong window size was being
   used.
 * Fix 1.5.0 regression where conditional cache responses could corrupt the
   connection pool.


## Version 1.5.0

_2014-03-07_

    if (unknownValues) return false

    // If the server returned a value for client_max_window_bits, fail the web socket.
    if (clientMaxWindowBits != null) return false

    // If the server returned an illegal server_max_window_bits, fail the web socket.
    if (serverMaxWindowBits != null && serverMaxWindowBits !in 8..15) return false

    // Success.
    return true

    out1.write(ByteArray(Settings.DEFAULT_INITIAL_WINDOW_SIZE))
    out1.flush()

    // Check that we've filled the window for both the stream and also the connection.
    assertThat(connection.writeBytesTotal)
      .isEqualTo(Settings.DEFAULT_INITIAL_WINDOW_SIZE.toLong())
    assertThat(connection.writeBytesMaximum)
      .isEqualTo(Settings.DEFAULT_INITIAL_WINDOW_SIZE.toLong())
    assertThat(stream1.writeBytesTotal)

      Settings.DEFAULT_INITIAL_WINDOW_SIZE,
    )
    settings[Settings.INITIAL_WINDOW_SIZE] = 108
    assertThat(settings.initialWindowSize).isEqualTo(108)
  }

  @Test
  fun merge() {
    val a = Settings()
    a[Settings.HEADER_TABLE_SIZE] = 10000
    a[Settings.MAX_HEADER_LIST_SIZE] = 20000
    a[Settings.INITIAL_WINDOW_SIZE] = 30000
    val b = Settings()