Cucumber (Gherkin): How to use parameters of type non string (Long) in test steps?

Question

I'm trying to write some Cucumber tests in order to get familiarized with the Gherkin language. Here is a feature sample:

  Scenario: Get a customer
    When an user wants to get a customer <id>
    Then an HTTP 200 status together with the requested customer data is returned

And here is the associated step:

@When("an user wants to get a customer {long}")
public void anUserWantsToGetACustomer(Long id)
{
  ...
}

Running the verify goal raises the following exception:

[ERROR] Get a customer  Time elapsed: 0.023 s  <<< ERROR!
io.cucumber.junit.UndefinedStepException: 
The step "an user wants to get a customer <long>" is undefined. You can implement it using the snippet(s) below:

@When("an user wants to get a customer <id>")
public void anUserWantsToGetACustomer_id() {
    // Write code here that turns the phrase above into concrete actions
    throw new io.cucumber.java.PendingException();
}

Obviously, it doesn't understand that the step method need to take a parameter of type Long. However, for parameter of type String it works, for example:

Scenario: Get a customer
  When an user wants to get a customer "<id>"
  Then an HTTP 200 status together with the requested customer data is returned
  ...
  @When("an user wants to get a customer {string}")
  public void anUserWantsToGetACustomer(String id)
  {
    ...
  }

So, what kind of syntax should I use here in order that my tests accepts a Long parameter ?

Kind regards,

Seymour

Answer 1

You can use {long} in your step defs

Scenario: test long type
     Given I log the type of 41

@Given("I log the type of {long}")
        public void logType(Long testLong ) {
            System.out.println("type of 41 is:"+ testLong.getClass());
       }

prints

type of 41 is:class java.lang.Long

This also works

 Scenario Outline: test long type
     Given I log the type of <id> 
  
      Examples:
        |id|
        |  41  |

  @Given("I log the type of {long}")
        public void logType(Long testLong ) {
            System.out.println("type of " +testLong +" is:"+ testLong.getClass());
       }