@Test public void inject_no_key_names() {

  BaggageField userId = BaggageField.create("userId");
  BaggageField sessionId = BaggageField.create("sessionId");
  factory = newFactoryBuilder(B3SinglePropagation.FACTORY)
    .add(SingleBaggageField.local(userId))
    .add(SingleBaggageField.remote(sessionId))
    .build();
  initialize();
  userId.updateValue(context, "bob");
  sessionId.updateValue(context, "12345");
  injector.inject(context, request);
  assertThat(request)
    .doesNotContainKey("userid")
    .containsEntry("sessionid", "12345");
}