e2e-testing-patterns
Master end-to-end testing with Playwright and Cypress to build reliable test suites that catch bugs, improve confidence, and enable fast deployment. Use when implementing E2E tests, debugging flaky tests, or establishing testing standards.
Install with Tessl CLI
npx tessl i github:wshobson/agents --skill e2e-testing-patterns79
Does it follow best practices?
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npx tessl skill review --optimize ./path/to/skillAgent success when using this skill
Validation for skill structure
Evaluation results
99%
26%Online Bookstore E2E Test Suite
Playwright config and Page Object Model
testDir setting
0%
100%
Global timeout
0%
100%
fullyParallel enabled
100%
100%
CI retries
100%
100%
CI workers
100%
100%
Dual reporters
0%
100%
Failure media capture
37%
100%
Multi-browser projects
100%
100%
Page Object classes
100%
100%
Locator initialization in constructor
87%
100%
data-testid selectors
62%
87%
No fixed timeouts
100%
100%
Tests use Page Objects
100%
100%
Without context: $0.3743 · 1m 15s · 18 turns · 66 in / 5,099 out tokens
With context: $0.8952 · 2m 27s · 36 turns · 115 in / 8,538 out tokens
100%
27%Product Catalog Cypress Test Suite
Cypress custom commands and API intercepts
baseUrl configured
100%
100%
viewport dimensions
0%
100%
video disabled
0%
100%
screenshotOnRunFailure
0%
100%
Command timeouts
0%
100%
Custom commands file
100%
100%
Login custom command
100%
100%
dataCy command
87%
100%
cy.intercept with alias
100%
100%
cy.wait with alias
100%
100%
data-cy selectors
100%
100%
API error scenario
100%
100%
Login command reuse
100%
100%
Without context: $0.5079 · 2m 34s · 22 turns · 71 in / 7,082 out tokens
With context: $0.7155 · 2m 21s · 33 turns · 30 in / 6,860 out tokens
81%
-8%Payment Checkout E2E Tests
Playwright network mocking and accessibility
page.route() for mocking
100%
100%
route.fulfill() usage
100%
100%
Error scenario mocked
100%
100%
@axe-core/playwright import
100%
100%
AxeBuilder usage
100%
100%
Violations assertion
100%
100%
No fixed timeouts
100%
100%
Promise.all for parallel waits
100%
100%
test.step() usage
0%
0%
Playwright fixtures used
66%
66%
data-testid selectors
100%
0%
Route interception correct pattern
100%
100%
Without context: $0.4787 · 1m 53s · 24 turns · 72 in / 5,565 out tokens
With context: $0.8234 · 3m 4s · 27 turns · 26 in / 8,195 out tokens
- Evaluated
- Agent
- Claude Code
Table of Contents
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