BrowserTest

A browser-based quiz tool, capable of storing scores across a range of players and quiz versions. Fully client-side only, with no server/backend requirement.

Overview

BrowserTest is an interactive quiz and analysis platform designed for offline use. It progressively enhances HTML documents with quiz functionality, student progress tracking, and instructor review capabilities—all without requiring a network connection or server backend.

Status: In active development

Key Features

• Offline-first architecture – All data stored locally using IndexedDB; works entirely from file:// URLs
• Interactive quizzes – Support for multiple-choice questions (MCQ) and numeric answers with tolerance checking
• Analysis tables – Editable spreadsheet-like tables for student work with cell-level tracking
• Instructor mode – Password-protected answer reveal, student response tracking, and CSV export

Technology Stack

• Framework: Lit 3 (Web Components)
• Build: Vite + TypeScript
• Storage: IndexedDB (primary), sessionStorage (session cache)
• Testing: Vitest (unit), Playwright (E2E), Storybook + Chromatic (visual regression)
• Target: Chromium ≥96, Firefox ≥102, offline-capable

Prerequisites

• Node.js ≥18
• npm ≥9

Getting Started

# Clone the repository
git clone https://github.com/DeepBlueCLtd/BrowserTest.git
cd BrowserTest
# Install dependencies
npm install
# Start development server
npm run dev
# Run Storybook for component development
npm run storybook
# Run tests
npm test# Build for production
npm run build

Demo Files

The demo/ directory contains standalone HTML test files that demonstrate the system's functionality:

• quiz-index.html – Index page with login UI and navigation
• quiz-examples.html – Interactive quiz tables (MCQ and numeric questions)
• analysis-examples.html – Editable analysis tables for student work

To test the demo files:

# Build the project first
npm run build
# Option 1: Open directly in browser (file:// protocol)
open demo/quiz-index.html
# Option 2: Serve via HTTP for full functionality
python3 -m http.server 8000
# Then visit: http://localhost:8000/demo/quiz-index.html

See demo/README.md for detailed testing instructions, workflow guides, and troubleshooting tips.

Testing

The project uses a comprehensive testing strategy across multiple layers:

Unit Tests

npm run test:unit # Vitest unit tests
npm run test:integration # DOM upgrade integration tests

E2E Tests (Playwright)

npm run test:e2e # Auto-starts/stops Storybook, runs E2E tests
npm run test:e2e:headed # Run with visible browser
npm run test:e2e:debug # Debug mode with Playwright Inspector

Important: E2E tests automatically manage Storybook lifecycle:

• Playwright starts Storybook before tests (12s timeout)
• Tests run against http://localhost:6006 Storybook stories
• Storybook is automatically killed when tests complete
• If Storybook is already running locally, tests reuse the existing instance
• All test operations timeout after 2 seconds (local SPA, no network delays)

No manual Storybook management required - just run npm run test:e2e.

Visual Regression Tests

npm run storybook # Start Storybook for local development
npm run chromatic # Run visual regression tests (requires API token)

All Tests

npm test# Runs unit + integration tests

DITA Publishing

To prepare the bundle for DITA publishing with Oxygen WebHelp:

# Build and copy to DITA template resources
npm run build:dita

This copies dist/sonar-quiz.iife.js to dita/template/resources/ for inclusion in WebHelp output. See dita/README.md for DITA authoring guidelines and template customization.

Releases

Releases are created by pushing a version tag to the main branch:

git tag v0.2.0
git push origin v0.2.0

See docs/RELEASE.md for complete release instructions.

Project Documentation

Document	Description
docs/RELEASE.md	Release process and versioning guide
System_Requirements.md	Functional requirements, user roles, data model, and authoring rules
Technical_Design.md	Architecture, technology decisions, packaging, integration, and acceptance criteria
ARCHITECTURE_FLOWS.md	Event flows, login processes, DOM patterns, and service interactions
Contracts.md	Core types, interfaces, events, constants, and validation rules (frozen API)
Delivery_Plan.md	Phase-by-phase development plan with exit gates and testing strategy
Storybook_Plan.md	Component stories, controls, interaction tests, and visual regression policy

Development Phases

The project follows an 8-phase delivery plan:

• Phase 0: Bootstrap + Contracts (toolchain, frozen interfaces) ← Current phase
• Phase 1: Quiz Core (interactive quizzes, no login/IDB)
• Phase 2: Analysis Workbook (editable tables)
• Phase 3: Instructor Unlock (supervisor mode)
• Phase 4: Login + Session Cache
• Phase 5: Persistent Storage + Scores
• Phase 6: Validation, Accessibility, Performance
• Phase 7: Beta Deployment & Feedback
• Phase 8: Security/Enhancements (optional)

See Delivery_Plan.md for detailed phase descriptions and exit criteria.

Architecture

• Runtime: Single JavaScript bundle (IIFE ≤25 KB gzipped) that progressively enhances DITA-published HTML
• Pattern: DOM upgrades for tables + Lit 3 custom elements for UI overlays
• Data flow: User actions → sessionStorage cache → IndexedDB persistence
• Isolation: Shadow DOM for components, scoped CSS for upgraded tables
• Events: Custom event system (qd:* namespace) for integration hooks

License

[License information to be added]