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npx skills add https://github.com/obra/superpowers --skill test-driven-developmentWorks with Paperclip
How E2e Testing fits into a Paperclip company.
E2e Testing drops into any Paperclip agent that handles this kind of work. Assign it to a specialist inside a pre-configured PaperclipOrg company and the skill becomes available on every heartbeat — no prompt engineering, no tool wiring.
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---name: e2e-testingdescription: Playwright E2E testing patterns, Page Object Model, configuration, CI/CD integration, artifact management, and flaky test strategies.origin: ECC--- # E2E Testing Patterns Comprehensive Playwright patterns for building stable, fast, and maintainable E2E test suites. ## Test File Organization ```tests/├── e2e/│ ├── auth/│ │ ├── login.spec.ts│ │ ├── logout.spec.ts│ │ └── register.spec.ts│ ├── features/│ │ ├── browse.spec.ts│ │ ├── search.spec.ts│ │ └── create.spec.ts│ └── api/│ └── endpoints.spec.ts├── fixtures/│ ├── auth.ts│ └── data.ts└── playwright.config.ts``` ## Page Object Model (POM) ```typescriptimport { Page, Locator } from '@playwright/test' export class ItemsPage { readonly page: Page readonly searchInput: Locator readonly itemCards: Locator readonly createButton: Locator constructor(page: Page) { this.page = page this.searchInput = page.locator('[data-testid="search-input"]') this.itemCards = page.locator('[data-testid="item-card"]') this.createButton = page.locator('[data-testid="create-btn"]') } async goto() { await this.page.goto('/items') await this.page.waitForLoadState('networkidle') } async search(query: string) { await this.searchInput.fill(query) await this.page.waitForResponse(resp => resp.url().includes('/api/search')) await this.page.waitForLoadState('networkidle') } async getItemCount() { return await this.itemCards.count() }}``` ## Test Structure ```typescriptimport { test, expect } from '@playwright/test'import { ItemsPage } from '../../pages/ItemsPage' test.describe('Item Search', () => { let itemsPage: ItemsPage test.beforeEach(async ({ page }) => { itemsPage = new ItemsPage(page) await itemsPage.goto() }) test('should search by keyword', async ({ page }) => { await itemsPage.search('test') const count = await itemsPage.getItemCount() expect(count).toBeGreaterThan(0) await expect(itemsPage.itemCards.first()).toContainText(/test/i) await page.screenshot({ path: 'artifacts/search-results.png' }) }) test('should handle no results', async ({ page }) => { await itemsPage.search('xyznonexistent123') await expect(page.locator('[data-testid="no-results"]')).toBeVisible() expect(await itemsPage.getItemCount()).toBe(0) })})``` ## Playwright Configuration ```typescriptimport { defineConfig, devices } from '@playwright/test' export default defineConfig({ testDir: './tests/e2e', fullyParallel: true, forbidOnly: !!process.env.CI, retries: process.env.CI ? 2 : 0, workers: process.env.CI ? 1 : undefined, reporter: [ ['html', { outputFolder: 'playwright-report' }], ['junit', { outputFile: 'playwright-results.xml' }], ['json', { outputFile: 'playwright-results.json' }] ], use: { baseURL: process.env.BASE_URL || 'http://localhost:3000', trace: 'on-first-retry', screenshot: 'only-on-failure', video: 'retain-on-failure', actionTimeout: 10000, navigationTimeout: 30000, }, projects: [ { name: 'chromium', use: { ...devices['Desktop Chrome'] } }, { name: 'firefox', use: { ...devices['Desktop Firefox'] } }, { name: 'webkit', use: { ...devices['Desktop Safari'] } }, { name: 'mobile-chrome', use: { ...devices['Pixel 5'] } }, ], webServer: { command: 'npm run dev', url: 'http://localhost:3000', reuseExistingServer: !process.env.CI, timeout: 120000, },})``` ## Flaky Test Patterns ### Quarantine ```typescripttest('flaky: complex search', async ({ page }) => { test.fixme(true, 'Flaky - Issue #123') // test code...}) test('conditional skip', async ({ page }) => { test.skip(process.env.CI, 'Flaky in CI - Issue #123') // test code...})``` ### Identify Flakiness ```bashnpx playwright test tests/search.spec.ts --repeat-each=10npx playwright test tests/search.spec.ts --retries=3``` ### Common Causes & Fixes **Race conditions:**```typescript// Bad: assumes element is readyawait page.click('[data-testid="button"]') // Good: auto-wait locatorawait page.locator('[data-testid="button"]').click()``` **Network timing:**```typescript// Bad: arbitrary timeoutawait page.waitForTimeout(5000) // Good: wait for specific conditionawait page.waitForResponse(resp => resp.url().includes('/api/data'))``` **Animation timing:**```typescript// Bad: click during animationawait page.click('[data-testid="menu-item"]') // Good: wait for stabilityawait page.locator('[data-testid="menu-item"]').waitFor({ state: 'visible' })await page.waitForLoadState('networkidle')await page.locator('[data-testid="menu-item"]').click()``` ## Artifact Management ### Screenshots ```typescriptawait page.screenshot({ path: 'artifacts/after-login.png' })await page.screenshot({ path: 'artifacts/full-page.png', fullPage: true })await page.locator('[data-testid="chart"]').screenshot({ path: 'artifacts/chart.png' })``` ### Traces ```typescriptawait browser.startTracing(page, { path: 'artifacts/trace.json', screenshots: true, snapshots: true,})// ... test actions ...await browser.stopTracing()``` ### Video ```typescript// In playwright.config.tsuse: { video: 'retain-on-failure', videosPath: 'artifacts/videos/'}``` ## CI/CD Integration ```yaml# .github/workflows/e2e.ymlname: E2E Testson: [push, pull_request] jobs: test: runs-on: ubuntu-latest steps: - uses: actions/checkout@v4 - uses: actions/setup-node@v4 with: node-version: 20 - run: npm ci - run: npx playwright install --with-deps - run: npx playwright test env: BASE_URL: ${{ vars.STAGING_URL }} - uses: actions/upload-artifact@v4 if: always() with: name: playwright-report path: playwright-report/ retention-days: 30``` ## Test Report Template ```markdown# E2E Test Report **Date:** YYYY-MM-DD HH:MM**Duration:** Xm Ys**Status:** PASSING / FAILING ## Summary- Total: X | Passed: Y (Z%) | Failed: A | Flaky: B | Skipped: C ## Failed Tests ### test-name**File:** `tests/e2e/feature.spec.ts:45`**Error:** Expected element to be visible**Screenshot:** artifacts/failed.png**Recommended Fix:** [description] ## Artifacts- HTML Report: playwright-report/index.html- Screenshots: artifacts/*.png- Videos: artifacts/videos/*.webm- Traces: artifacts/*.zip``` ## Wallet / Web3 Testing ```typescripttest('wallet connection', async ({ page, context }) => { // Mock wallet provider await context.addInitScript(() => { window.ethereum = { isMetaMask: true, request: async ({ method }) => { if (method === 'eth_requestAccounts') return ['0x1234567890123456789012345678901234567890'] if (method === 'eth_chainId') return '0x1' } } }) await page.goto('/') await page.locator('[data-testid="connect-wallet"]').click() await expect(page.locator('[data-testid="wallet-address"]')).toContainText('0x1234')})``` ## Financial / Critical Flow Testing ```typescripttest('trade execution', async ({ page }) => { // Skip on production — real money test.skip(process.env.NODE_ENV === 'production', 'Skip on production') await page.goto('/markets/test-market') await page.locator('[data-testid="position-yes"]').click() await page.locator('[data-testid="trade-amount"]').fill('1.0') // Verify preview const preview = page.locator('[data-testid="trade-preview"]') await expect(preview).toContainText('1.0') // Confirm and wait for blockchain await page.locator('[data-testid="confirm-trade"]').click() await page.waitForResponse( resp => resp.url().includes('/api/trade') && resp.status() === 200, { timeout: 30000 } ) await expect(page.locator('[data-testid="trade-success"]')).toBeVisible()})```Related skills
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