val byteCount: Long = headers.byteCount()
    val builder: Headers.Builder = headers.newBuilder()
    val multimap: Map<String, List<String>> = headers.toMultimap()
  }

  @Test
  fun headersBuilder() {
    var builder: Headers.Builder = Headers.Builder()
    builder = builder.add("")
    builder = builder.add("", "")
    builder = builder.addUnsafeNonAscii("", "")
    builder = builder.addAll(headersOf())

  @Test
  fun responseHeaderParsingIsLenient() {
    val headersBuilder = Headers.Builder()
    headersBuilder.add("Content-Length", "0")
    addHeaderLenient(headersBuilder, "a\tb: c\u007fd")
    addHeaderLenient(headersBuilder, ": ef")
    addHeaderLenient(headersBuilder, "\ud83c\udf69: \u2615\ufe0f")
    val headers = headersBuilder.build()
    server.enqueue(MockResponse(headers = headers))