val ctxt = InstrumentationRegistry.getInstrumentation().targetContext.applicationContext

    val cacheSize = 1L * 1024 * 1024 // 1MB
    val cache = Cache(ctxt.cacheDir.resolve("testCache"), cacheSize)

    try {
      client =
        client.newBuilder()
          .cache(cache)
          .build()

      val request =
        Request.Builder()
          .url(server.url("/"))