source1.close()
    source2.close()
    assertThat(relay.isClosed).isTrue()
    assertFile(Relay.PREFIX_CLEAN, 20L, metadata.size, "abcdefghijklmnopqrst", metadata)
  }

  @Test
  fun readAfterEdit() {
    val upstream = Buffer()
    upstream.writeUtf8("abcdefghij")
    val relay1 = edit(file, upstream, metadata, 5)
    val source1 = relay1.newSource()!!.buffer()