Note: This is a methodology reference document. The game-tester agent executes these tests. This skill does not use gated steps.

Game QA

Testing methodology for web games. This skill documents WHAT to test and HOW. The game-tester agent PERFORMS the tests.

When Invoked

By game-orchestra when code exists and needs testing.

Playwright MCP Tools

Use these Playwright MCP tools for game testing:

Tool	Purpose
browser_navigate	Load the game URL
browser_snapshot	Capture DOM state
browser_take_screenshot	Visual verification
browser_evaluate	Call render_game_to_text(), advanceTime()
browser_click	Simulate mouse input
browser_press_key	Simulate keyboard input
browser_fill_form	Text input (for name entry, etc.)
browser_console_messages	Error tracking

Testing Workflow

1. Navigate to game URL (browser_navigate)
2. Screenshot initial state (browser_take_screenshot)
3. Capture baseline state via browser_evaluate:

   window.render_game_to_text()
   

4. Simulate inputs via browser_click or browser_press_key
5. Advance time deterministically:

   window.advanceTime(1000)  // Advance 1 second
   

6. Capture post-action state and screenshot
7. Compare expected vs actual state
8. Report findings: what worked, what broke, visual anomalies

Testing Checklist

Core Gameplay

• Primary movement/interaction inputs work
• Win/lose/success/fail transitions trigger correctly
• Score/health/resource changes reflect actions
• Boundary conditions: edges, min/max values
• Collisions: player-enemy, player-item, player-boundary

UI & Navigation

• Menu → game → pause → resume → gameover flow
• Buttons/links respond to clicks
• Text is readable (not truncated, overlapping, or invisible)
• Responsive: game works at 375px, 768px, 1024px widths

Integration Hooks

• window.render_game_to_text() returns valid JSON
• window.advanceTime(ms) advances state correctly
• State from render_game_to_text matches visual state

Error Tracking

• No console errors during normal gameplay
• No console errors during edge cases (rapid input, resize)
• Rule: Fix the FIRST console error before testing anything else

Interpreting Results

• State matches visual: PASS
• State exists but visual wrong: Rendering bug
• Visual right but state wrong: State tracking bug
• Both wrong: Logic bug — check game loop
• Console error: Stop testing, fix error first

See Also

• action-payloads.md — Input simulation patterns
• game-integration.md — Required hook implementations