assertThat(call).contains("type=" + java.net.Authenticator.RequestorType.SERVER)
    assertThat(call).contains("prompt=Bar")
    assertThat(call).contains("protocol=http")
    assertThat(call.lowercase(Locale.US))
      .contains("scheme=basic") // lowercase for the RI.
  }

  @Test
  fun allAttributesSetInProxyAuthenticationCallbacks() {
    val calls = authCallsForHeader("Proxy-Authenticate: Basic realm=\"Bar\"")