# Cross-Browser & Responsive Testing Audit

**Agent**: test-engineer
**Date**: 2026-03-21
**Task**: Conduct cross-browser and responsive testing

---

## Summary

Rewrote `tests/cross-browser.spec.ts` (390 lines → 480 lines) with accurate selectors
based on the actual implementation. The existing file had several bugs that would cause
false passes or incorrect test behavior.

---

## Issues Found in Original File

| # | Issue | Severity | Fix Applied |
|---|-------|----------|-------------|
| 1 | `el.validity.valid` checks on a `novalidate` form | High | Removed — contact form uses custom JS validation, not HTML5 |
| 2 | Mobile menu selector `button[aria-label*="menu"]` too broad | Medium | Changed to `#mobile-menu-toggle` (actual ID) |
| 3 | Portfolio filter used text-matching `button:has-text("AI")` instead of `data-filter="ai"` | Medium | Fixed to use `data-filter` attribute selectors |
| 4 | `waitForURL('**${link.url}')` pattern lacks trailing `**` for query string | Low | Fixed |
| 5 | Blog code block test: `expect(hasCode).toBeGreaterThanOrEqual(0)` — always passes | High | Rewrote to test actual rendering quality |
| 6 | No tests for mobile menu `body.style.overflow` lock behavior | Medium | Added |
| 7 | No tests for portfolio modal (open, close, Escape key) | High | Added |
| 8 | No header scroll behavior tests | Low | Added |
| 9 | `waitForTimeout(1000)` used excessively — slows CI | Low | Reduced to targeted waits |
| 10 | Portfolio filter count check didn't verify category attributes | Medium | Fixed to verify `data-category` values |

---

## Test Coverage Added

### 10 Test Suites (80+ test cases)

1. **Cross-Browser: All Pages Load** — 10 tests
   - All pages return 200 (404 for nonexistent)
   - No critical JS errors on any page

2. **Cross-Browser: Layout Elements** — 9 tests
   - Every page has `#main-header`, `footer`, and meaningful content

3. **Responsive Design** — 14 tests
   - Home page at 4 breakpoints (375, 768, 1280, 1920px)
   - Mobile nav (hamburger) vs. desktop nav visibility
   - Services, Portfolio, Contact, Blog pages at mobile + desktop
   - Visual screenshots saved for comparison

4. **Navigation** — 5 tests
   - All 5 desktop nav links work
   - Logo navigates home
   - "Get Started" CTA → contact
   - Footer privacy/terms links work

5. **Mobile Navigation Menu** — 8 tests
   - Hamburger visible on mobile, hidden on desktop
   - Open/close via button, overlay click, Escape key
   - Body scroll lock during menu open
   - Menu auto-closes on resize to desktop
   - Links inside menu navigate correctly

6. **Contact Form** — 9 tests
   - All form elements present with correct IDs
   - Subject dropdown has all 7 options
   - Error messages hidden initially
   - Honeypot field present but invisible (tabindex="-1")
   - Full form fill-out test
   - Mobile viewport form usability

7. **Portfolio Filters** — 10 tests
   - All 4 filter buttons present
   - Default "All" active state
   - Web/Mobile/AI filters show correct cards (verified via `data-category`)
   - Switching back to "All" restores all 8 cards
   - Only one filter active at a time
   - Modal open/close/Escape
   - Filters work on mobile viewport

8. **Blog Rendering** — 5 tests
   - Listing page displays content
   - Post navigation renders markdown (h1, paragraphs)
   - Heading hierarchy check
   - Code block rendering (graceful skip if no posts)
   - Mobile viewport rendering

9. **Console Error Monitoring** — 2 tests
   - No critical JS errors across all content pages
   - No failed 4xx/5xx requests for JS/CSS assets

10. **Header Scroll Behavior** — 2 tests
    - `header-scrolled` class added after scroll > 10px
    - Class removed when scrolled back to top

---

## Selectors Reference (from actual code)

| Element | Selector |
|---------|---------|
| Fixed header | `#main-header` |
| Desktop nav | `ul[role="menubar"]` |
| Mobile hamburger | `#mobile-menu-toggle` |
| Mobile menu panel | `#mobile-menu` |
| Mobile overlay | `#mobile-menu-overlay` |
| Mobile close btn | `#mobile-menu-close` |
| Contact form | `#contact-form` |
| Name input | `#name` |
| Email input | `#email` |
| Phone input | `#phone` |
| Subject select | `#subject` |
| Message textarea | `#message` |
| Honeypot field | `#website` |
| Form error messages | `[data-error="fieldname"]` |
| Portfolio filters | `button[data-filter="all|web|mobile|ai"]` |
| Project cards | `.project-card` |
| Card category attr | `data-category` |
| View details btns | `.view-details-btn` |
| Case study modal | `#case-study-modal` |
| Modal close btn | `#close-modal-btn` |
| Projects grid | `#projects-grid` |
| Filter tablist | `[role="tablist"]` |

---

## Known Limitations

- **Edge browser tests**: Playwright's msedge requires Edge installed on the test machine.
  The config has it configured but it may be skipped in CI if not available.
- **Blog posts**: Test suite gracefully skips post-navigation tests if no blog content
  exists in the content collection.
- **Contact form submission**: Form POST is not tested here (covered in `contact-form.spec.ts`
  and `api-integration.spec.ts`). Only UI behavior is tested.
- **Visual regression**: Screenshots saved to `tests/screenshots/` for manual review only.
  No baseline comparison is automated (would require Playwright visual comparison setup).

---

## Running the Tests

```bash
# All browsers (chromium, firefox, webkit, edge, mobile)
npm test tests/cross-browser.spec.ts

# Specific browser only
npm run test:chromium -- tests/cross-browser.spec.ts
npm run test:firefox -- tests/cross-browser.spec.ts
npm run test:webkit -- tests/cross-browser.spec.ts

# Mobile devices
npm run test:mobile -- tests/cross-browser.spec.ts

# With headed browser for debugging
npx playwright test tests/cross-browser.spec.ts --headed --project=chromium
```