val afterRemoveFileContents = if (windows) "a1234" else null

    set("a", "a1234", "a1234")
    val a = cache.edit("a")!!
    a.setString(0, "a123")
    cache.maxSize = 8 // Smaller than the sum of active edits!
    cache.flush() // Force trimToSize().
    assertThat(cache.size()).isEqualTo(expectedByteCount)
    assertThat(readFileOrNull(getCleanFile("a", 0))).isEqualTo(afterRemoveFileContents)

    val framesThatFillWindow =
      roundUp(Settings.DEFAULT_INITIAL_WINDOW_SIZE, peer.maxOutboundDataLength())

    // Write the mocking script. This accepts more data frames than necessary!
    peer.sendFrame().settings(Settings())
    peer.acceptFrame() // SETTINGS ACK
    peer.acceptFrame() // SYN_STREAM on stream 1
    for (i in 0 until framesThatFillWindow) {