var content = fileSystem.source(cacheEntry).buffer().readUtf8()
    content = content.replace("MII", "!!!")
    fileSystem.sink(cacheEntry).buffer().writeUtf8(content).close()
  }

  @Test
  fun responseCachingAndRedirects() {
    server.enqueue(
      MockResponse.Builder()
        .addHeader("Last-Modified: " + formatDate(-1, TimeUnit.HOURS))
        .addHeader("Expires: " + formatDate(1, TimeUnit.HOURS))