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cucumbergherkincucumber-javafeature-file
iamkenos
iamkenos

Reputation: 1566

Java Cucumber: How to get string parameter values from all the steps in a single scenario

I'm looking for a way to get all the parameters that are being passed in each step before entering the actual scenario for each scenario in my feature file.

Sample feature file:

Feature: Login action
  Background:
    When "{login url}" is open

  Scenario: Registered user provides valid username and password
    Given user enters username "{username}" and password "test password"
    And user clicks on "btnLogin"
    Then user is logged in

Parameters I want to get:

  • {login url}
  • {username}
  • password
  • btnLogin

    What I tried so far:

    I have tried using a common hook that will be automatically used by all of my scenarios:

    public class ScenarioHook {

    public ScenarioHook() {
    }

    @Before
    public void setupScenario(Scenario scenario) throws InterruptedException {
    //Here I am currently watching the {scenario} object and I can see all the steps
    //but I still dont know where to get the passed parameter values.
    }

    @After
    public void teardownScenario() throws InterruptedException {
    }
}

    UPDATE 1: The reason why I want to do this is I want to manipulate the strings (if possible). e.g. all data enclosed in "{}" will be transformed to something else before entering the actual scenario.

    Upvotes: 0

    Views: 25778

    • Answers (2)

    Grasshopper
    Grasshopper

    Reputation: 9058

    You can use the @Transform annotation to change the value of the parameter to the step definition.

    For this you will need to create a class which contains the logic of the string modification and will return the modified value.

    public class StringTransformer extends Transformer<String>{

    public String transform(String value) {     
        return "transformed "+value;
    }    
}

    Next you need to include this class in your stepdefinition using the @Transform annotation in front of the method argument.

       @When("^Login with (.*?)$")
        public void helloHere(@Transform(StringTransformer.class) String userName)
    {
            System.out.println("TEXT --- " + userName);
    }

    This should give you the new transformed string. You can use this to create objects from your initial string. (Actually that is what it is used for)

    Upvotes: 5

    Eugene S
    Eugene S

    Reputation: 6900

    Cucumber Sceanario class will not provide you this information as I don't think all steps are actually being loaded and parsed before starting executing the scenario but parsed one by one during the scenario execution. One option I can think of is to create a background step where you will manually include all parameters involved in the scenario. For example:

    Feature: Login action

  Background:
    Given these parameters are using within this scenario: "{login url}", "{username}", "password", "btnLogin"

    When "{login url}" is open

    Upvotes: 0

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