val server2Host = server2.hostName + ":" + server2.port
    assertThat(server.takeRequest().headers["Host"]).isEqualTo(server1Host)
    assertThat(server2.takeRequest().headers["Host"]).isEqualTo(server2Host)
    assertThat(server.takeRequest().exchangeIndex, "Expected connection reuse")
      .isEqualTo(1)
    assertThat(server2.takeRequest().exchangeIndex, "Expected connection reuse")
      .isEqualTo(1)
  }

  @Test

    executeSynchronously("/b").assertBody("def")
    executeSynchronously("/c").assertBody("ghi")
    assertThat(server.takeRequest().exchangeIndex).isEqualTo(0)
    assertThat(server.takeRequest().exchangeIndex).isEqualTo(1)
    assertThat(server.takeRequest().exchangeIndex).isEqualTo(2)
  }

  /**
   * Each OkHttpClient used to get its own instance of NullProxySelector, and because these weren't

    assertThat(get(url).body.string()).isEqualTo("B")
    assertThat(server.takeRequest().headers["If-None-Match"]).isNull()
    assertThat(server.takeRequest().headers["If-None-Match"]).isEqualTo("v1")
    assertThat(server.takeRequest().headers["If-None-Match"]).isEqualTo("v1")
    assertThat(server.takeRequest().headers["If-None-Match"]).isEqualTo("v2")
  }

  @Test