/migrate

name: "migrate"
description: >-
  Migrate from Cypress or Selenium to Playwright. Use when user mentions
  "cypress", "selenium", "migrate tests", "convert tests", "switch to
  playwright", "move from cypress", or "replace selenium".

Migrate to Playwright

Interactive migration from Cypress or Selenium to Playwright with file-by-file conversion.

Input

`$ARGUMENTS` can be:

• `"from cypress"` — migrate Cypress test suite
• `"from selenium"` — migrate Selenium/WebDriver tests
• A file path: convert a specific test file
• Empty: auto-detect source framework

Steps

1. Detect Source Framework

Use `Explore` subagent to scan:

• `cypress/` directory or `cypress.config.ts` → Cypress
• `selenium`, `webdriver` in `package.json` deps → Selenium
• `.py` test files with `selenium` imports → Selenium (Python)

2. Assess Migration Scope

Count files and categorize:

Migration Assessment:
- Total test files: X
- Cypress custom commands: Y
- Cypress fixtures: Z
- Estimated effort: [small|medium|large]

| Size | Files | Approach | |---|---|---| | Small (1-10) | Convert sequentially | Direct conversion | | Medium (11-30) | Batch in groups of 5 | Use sub-agents | | Large (31+) | Use `/batch` | Parallel conversion with `/batch` |

3. Set Up Playwright (If Not Present)

Run `/pw:pw-init` first if Playwright isn't configured.

4. Convert Files

For each file, apply the appropriate mapping:

Cypress → Playwright

Load `cypress-mapping.md` for complete reference.

Key translations:

cy.visit(url)           → page.goto(url)
cy.get(selector)        → page.locator(selector) or page.getByRole(...)
cy.contains(text)       → page.getByText(text)
cy.find(selector)       → locator.locator(selector)
cy.click()              → locator.click()
cy.type(text)           → locator.fill(text)
cy.should('be.visible') → expect(locator).toBeVisible()
cy.should('have.text')  → expect(locator).toHaveText(text)
cy.intercept()          → page.route()
cy.wait('@alias')       → page.waitForResponse()
cy.fixture()            → JSON import or test data file

**Cypress custom commands** → Playwright fixtures or helper functions **Cypress plugins** → Playwright config or fixtures **`before`/`beforeEach`** → `test.beforeAll()` / `test.beforeEach()`

Selenium → Playwright

Load `selenium-mapping.md` for complete reference.

Key translations:

driver.get(url)                    → page.goto(url)
driver.findElement(By.id('x'))     → page.locator('#x') or page.getByTestId('x')
driver.findElement(By.css('.x'))   → page.locator('.x') or page.getByRole(...)
element.click()                    → locator.click()
element.sendKeys(text)             → locator.fill(text)
element.getText()                  → locator.textContent()
WebDriverWait + ExpectedConditions → expect(locator).toBeVisible()
driver.switchTo().frame()          → page.frameLocator()
Actions                            → locator.hover(), locator.dragTo()

5. Upgrade Locators

During conversion, upgrade selectors to Playwright best practices:

• `#id` → `getByTestId()` or `getByRole()`
• `.class` → `getByRole()` or `getByText()`
• `[data-testid]` → `getByTestId()`
• XPath → role-based locators

6. Convert Custom Commands / Utilities

• Cypress custom commands → Playwright custom fixtures via `test.extend()`
• Selenium page objects → Playwright page objects (keep structure, update API)
• Shared helpers → TypeScript utility functions

7. Verify Each Converted File

After converting each file:

npx playwright test <converted-file> --reporter=list

Fix any compilation or runtime errors before moving to the next file.

8. Clean Up

After all files are converted:

• Remove Cypress/Selenium dependencies from `package.json`
• Remove old config files (`cypress.config.ts`, etc.)
• Update CI workflow to use Playwright
• Update README with new test commands

Ask user before deleting anything.

Output

• Conversion summary: files converted, total tests migrated
• Any tests that couldn't be auto-converted (manual intervention needed)
• Updated CI config
• Before/after comparison of test run results