cucumber-skill

name cucumber-skill description Generates Cucumber BDD tests with Gherkin feature files and step definitions in Java, JavaScript, or Ruby. Use when user mentions "Cucumber", "Gherkin", "Feature/Scenario", "Given/When/Then", "BDD". Triggers on: "Cucumber", "Gherkin", "BDD", "Feature file", "Given/When/Then", "step definitions". languages ["Java","JavaScript","Ruby","TypeScript"] category bdd-testing license MIT metadata {"author":"TestMu AI","version":"1.0"} Cucumber BDD Skill Core Patterns Feature File (Gherkin) Feature: User Login As a registered user I want to log into the application So that I can access my dashboard Background: Given I am on the login page Scenario: Successful login When I enter "user@test.com" in the email field And I enter "password123" in the password field And I click the login button Then I should be redirected to the dashboard And I should see "Welcome" on the page Scenario: Invalid credentials When I enter "wrong@test.com" in the email field And I enter "wrongpass" in the password field And I click the login button Then I should see an error message "Invalid credentials" Scenario Outline: Login with various users When I enter "<email>" in the email field And I enter "<password>" in the password field And I click the login button Then I should see "<result>" Examples: | email | password | result | | admin@test.com | admin123 | Dashboard | | user@test.com | password | Dashboard | | bad@test.com | wrong | Error | Step Definitions — Java import io.cucumber.java.en.*; import static org.junit.jupiter.api.Assertions.*; public class LoginSteps { private LoginPage loginPage; private DashboardPage dashboardPage; @Given("I am on the login page") public void iAmOnTheLoginPage () { loginPage = new LoginPage (driver); loginPage.navigate(); } @When("I enter {string} in the email field") public void iEnterEmail (String email) { loginPage.enterEmail(email); } @When("I enter {string} in the password field") public void iEnterPassword (String password) { loginPage.enterPassword(password); } @When("I click the login button") public void iClickLogin () { dashboardPage = loginPage.clickLogin(); } @Then("I should be redirected to the dashboard") public void iShouldBeOnDashboard () { assertTrue(driver.getCurrentUrl().contains( "/dashboard" )); } @Then("I should see {string} on the page") public void iShouldSeeText (String text) { assertTrue(dashboardPage.getPageSource().contains(text)); } } Step Definitions — JavaScript const { Given , When , Then } = require ( '@cucumber/cucumber' ); const { expect } = require ( 'chai' ); Given ( 'I am on the login page' , async function ( ) { await this . page . goto ( '/login' ); }); When ( 'I enter {string} in the email field' , async function ( email ) { await this . page . fill ( '#email' , email); }); When ( 'I click the login button' , async function ( ) { await this . page . click ( 'button[type="submit"]' ); }); Then ( 'I should see {string} on the page' , async function ( text ) { const content = await this . page . textContent ( 'body' ); expect (content). to . include (text); }); Hooks import io.cucumber.java.*; public class Hooks { @Before public void setUp (Scenario scenario) { driver = new ChromeDriver (); } @After public void tearDown (Scenario scenario) { if (scenario.isFailed()) { byte [] screenshot = ((TakesScreenshot) driver).getScreenshotAs(OutputType.BYTES); scenario.attach(screenshot, "image/png" , "failure-screenshot" ); } driver.quit(); } } Tags @smoke Feature: Login @critical @fast Scenario: Quick login ... @slow @regression Scenario: Full login flow ... # Run by tag mvn test -Dcucumber.filter.tags= "@smoke" mvn test -Dcucumber.filter.tags= "@smoke and not @slow" Anti-Patterns Bad Good Why UI details in Gherkin Business language Readability One step per line of code Meaningful business steps Abstraction No Background for shared steps Use Background DRY Imperative steps Declarative steps Maintainable Cloud Execution on TestMu AI Set environment variables: LT_USERNAME , LT_ACCESS_KEY Java: // CucumberHooks.java ChromeOptions browserOptions = new ChromeOptions (); HashMap<String, Object> ltOptions = new HashMap <>(); ltOptions.put( "user" , System.getenv( "LT_USERNAME" )); ltOptions.put( "accessKey" , System.getenv( "LT_ACCESS_KEY" )); ltOptions.put( "build" , "Cucumber Build" ); ltOptions.put( "name" , scenario.getName()); ltOptions.put( "platformName" , "Windows 11" ); ltOptions.put( "video" , true ); browserOptions.setCapability( "LT:Options" , ltOptions); driver = new RemoteWebDriver ( new URL ( "https://hub.lambdatest.com/wd/hub" ), browserOptions); JavaScript: const driver = new Builder () . usingServer ( `https:// ${process.env.LT_USERNAME} : ${process.env.LT_ACCESS_KEY} @hub.lambdatest.com/wd/hub` ) . withCapabilities ({ browserName : 'chrome' , 'LT:Options' : { user : process. env . LT_USERNAME , accessKey : process. env . LT_ACCESS_KEY , build : 'Cucumber Build' , platformName : 'Windows 11' , video : true }}). build (); Quick Reference Task Command Run all (Java) mvn test with cucumber-junit-platform-engine Run all (JS) npx cucumber-js Run tagged --tags "@smoke" Dry run --dry-run Generate snippets Run undefined steps Deep Patterns → reference/playbook.md § Section Lines 1 Project Setup & Configuration Maven, runner, rerun 2 Feature Writing Patterns Background, outlines, DataTable 3 Step Definitions Typed steps, DI injection 4 Dependency Injection & Shared State PicoContainer, ScenarioContext 5 Hooks (Lifecycle Management) Before/After ordering, screenshots 6 Custom Parameter Types Transformers, DocString 7 Parallel Execution Thread-safe, TestNG parallel 8 Reporting Allure, masterthought, JSON 9 CI/CD Integration GitHub Actions, tag matrix 10 Debugging Quick-Reference 10 common problems 11 Best Practices Checklist 13 items