Verified against real infrastructure

$ mvn -B test

  Scenario: Non-REST protocols
    When I call the grpc method "hello.HelloService/SayHello" on "localhost:9000"
    gRPC response: { "reply": "hello L3git" }
    Given I connect to the websocket "ws://localhost:8080"
    When I send this websocket message: ping-123
    Then I should receive a websocket message containing "ping-123"
    When I close the websocket
    And I produce to the kafka topic "l3git-test": hello-kafka
    Then I should receive a kafka message on the topic "l3git-test" containing "hello-kafka"

[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
[INFO] BUILD SUCCESS