behave-skill

Files (3)

• SKILL.md
• advanced-patterns.md · reference/
• playbook.md · reference/

SKILL.md (first lines)

# Behave BDD Skill

## Core Patterns

### Feature File (features/login.feature)

```gherkin
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)

```python
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)

```python
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

```gherkin
@smoke
Feature: Login
  @critical
  Scenario: ...
```

```bash
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

From LambdaTest/agent-skills, MIT.

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