Allow parametrisation of scenarios by delimited names

public class ParameterizedStory extends JUnitStory {

  public static class ParamsSteps {
    
    private String user;    
    private Set<String> products; // null means no cart...

    @BeforeScenario
    public void init() {
      user = null;
      products = null;
    }
    
    @Given("$user is logged in")
    public void loggedIn(String user) {
      this.user = user;
    }
    
    @Given("$customer has a cart")
    public void aCustomerHasACart(String customer) {
      assertThat(user, notNullValue());
      assertThat(customer, equalTo(user));
      if (products == null) products = new TreeSet<String>();
    }
     
    @When("a $product is added to the cart")
    public void aProductIsAddedToCart(String product) {
      assertThat(products, notNullValue());
      products.add(product);
    }
    
    @Then("cart contains $product")
    public void cartContains(String product) {
      assertThat(products, notNullValue());
      assertTrue(products.contains(product));
    }
  }

  public ParameterizedStory() {
    // Making sure this doesn't output to the build while it's running
    useConfiguration(new MostUsefulConfiguration()
      .useStoryReporterBuilder(new StoryReporterBuilder()
      .withFormats(Format.CONSOLE)
      .withFailureTrace(true)
      .withFailureTraceCompression(false))
      .usePendingStepStrategy(new FailingUponPendingStep())
      .useFailureStrategy(new RethrowingFailure()));
  }
  
  @Override
  public List<CandidateSteps> candidateSteps() {
    return new InstanceStepsFactory(configuration(), new ParamsSteps()).createCandidateSteps(); 
  }
}

Scenario: Use flexible parameters with examples table

Given <client> is logged in
And <client> has a cart
When a <item> is added to the cart
Then cart contains <item>

Examples:
|client|item|
|Rui|chocolate|
|Figueira|car|