behave-skill

name behave-skill description Generates Behave BDD tests for Python with Gherkin feature files and step implementations. Use when user mentions "Behave", "Python BDD", "Python Gherkin". Triggers on: "Behave", "Python BDD", "behave test", "Python feature file". languages ["Python"] category bdd-testing license MIT metadata {"author":"TestMu AI","version":"1.0"} Behave BDD Skill Core Patterns Feature File (features/login.feature) Feature: User Login As a registered user I want to log into the application Background: Given I am on the login page Scenario: Successful login When I enter "user@test.com" as email And I enter "password123" as password And I click login Then I should see the dashboard And the welcome message should say "Welcome" Scenario: Invalid credentials When I enter "wrong@test.com" as email And I enter "wrong" as password And I click login Then I should see error "Invalid credentials" Scenario Outline: Login with various users When I enter "<email>" as email And I enter "<password>" as password And I click login Then I should see "<result>" Examples: | email | password | result | | admin@test.com | admin123 | Dashboard | | bad@test.com | wrong | Error | Step Definitions (features/steps/login_steps.py) from behave import given, when, then from selenium import webdriver from selenium.webdriver.common.by import By from selenium.webdriver.support.ui import WebDriverWait from selenium.webdriver.support import expected_conditions as EC @given( 'I am on the login page' ) def step_on_login ( context ): context.browser.get(context.base_url + '/login' ) @when( 'I enter "{text}" as email' ) def step_enter_email ( context, text ): el = context.browser.find_element(By.ID, 'email' ) el.clear() el.send_keys(text) @when( 'I enter "{text}" as password' ) def step_enter_password ( context, text ): el = context.browser.find_element(By.ID, 'password' ) el.clear() el.send_keys(text) @when( 'I click login' ) def step_click_login ( context ): context.browser.find_element(By.CSS_SELECTOR, 'button[type="submit"]' ).click() @then( 'I should see the dashboard' ) def step_see_dashboard ( context ): WebDriverWait(context.browser, 10 ).until( EC.url_contains( '/dashboard' ) ) assert '/dashboard' in context.browser.current_url @then( 'I should see error "{msg}"' ) def step_see_error ( context, msg ): error = WebDriverWait(context.browser, 5 ).until( EC.visibility_of_element_located((By.CSS_SELECTOR, '.error' )) ) assert msg in error.text Environment Hooks (features/environment.py) from selenium import webdriver def before_all ( context ): context.base_url = 'http://localhost:3000' def before_scenario ( context, scenario ): context.browser = webdriver.Chrome() context.browser.implicitly_wait( 10 ) def after_scenario ( context, scenario ): if scenario.status == 'failed' : context.browser.save_screenshot( f'screenshots/ {scenario.name} .png' ) context.browser.quit() Tags @smoke Feature: Login @critical Scenario: ... behave --tags=@smoke behave --tags= "@smoke and not @slow" Setup: pip install behave selenium Run: behave or behave features/login.feature Cloud Execution on TestMu AI Set environment variables: LT_USERNAME , LT_ACCESS_KEY # environment.py from selenium import webdriver import os def before_scenario ( context, scenario ): lt_options = { "user" : os.environ[ "LT_USERNAME" ], "accessKey" : os.environ[ "LT_ACCESS_KEY" ], "build" : "Behave Build" , "name" : scenario.name, "platformName" : "Windows 11" , "video" : True , "console" : True , "network" : True , } options = webdriver.ChromeOptions() options.set_capability( "LT:Options" , lt_options) context.driver = webdriver.Remote( command_executor= f"https:// {os.environ[ 'LT_USERNAME' ]} : {os.environ[ 'LT_ACCESS_KEY' ]} @hub.lambdatest.com/wd/hub" , options=options, ) Report: behave --format json -o report.json Deep Patterns See reference/playbook.md for production-grade patterns: Section What You Get §1 Project Setup behave.ini, project structure, dependencies §2 Feature Files Gherkin with Scenario Outline, data tables, Background §3 Step Definitions Type registration, API steps, common steps with PyHamcrest §4 Environment Hooks before_all/scenario/feature, screenshot on failure, DB isolation §5 Page Objects BasePage with waits, LoginPage, reusable components §6 Fixtures & Test Data DatabaseHelper, transaction rollback, JSON data loader §7 LambdaTest Integration Remote browser creation, cloud capabilities §8 CI/CD Integration GitHub Actions with Postgres, Selenium, Allure reports §9 Debugging Table 12 common problems with causes and fixes §10 Best Practices 14-item BDD testing checklist