"RequestHeadersEnd", "ResponseHeadersStart", "ResponseHeadersEnd",
      "ResponseBodyStart", "ResponseBodyEnd", "CacheHit", "ConnectionReleased", "CallEnd",
    )
  }

  @Test
  fun conditionalCacheMiss() {
    enableCache()
    server.enqueue(
      MockResponse.Builder()
        .addHeader("ETag: v1")
        .body("abc")
        .build(),
    )
    server.enqueue(

    callback.await(request2.url).assertCode(200).assertBody("A")
    assertThat(server.takeRequest().headers["If-None-Match"]).isEqualTo("v1")
  }

  @Test
  fun conditionalCacheMiss() {
    server.enqueue(
      MockResponse(
        headers =
          headersOf(
            "ETag",
            "v1",
            "Vary",
            "Accept-Charset",