server.enqueue(
      MockResponse
        .Builder()
        .body("Request #2")
        .build(),
    )
    val bodySource = get(server.url("/")).body.source()
    assertThat(bodySource.readUtf8Line()).isEqualTo("ABCDE")
    bodySource.use {
      assertFailsWith<IOException> {
        bodySource.readUtf8(21)
      }
    }
    assertThat(cache.writeAbortCount()).isEqualTo(1)