|authorization: ██
      |proxy-authorization: ██
      |cookie: ██
      |set-cookie: ██
      |user-agent: OkHttp
      |
      """.trimMargin(),
    )
  }

  @Test fun headersAddAll() {
    val sourceHeaders =
      Headers.Builder()
        .add("A", "aa")
        .add("a", "aa")
        .add("B", "bb")
        .build()
    val headers =
      Headers.Builder()