feat: Playwright e2e test framework setup in Overlay repo

[subhashkhileri]

Add Playwright E2E Testing Framework

JIRA : https://issues.redhat.com/browse/RHIDP-9532

Changes

Infrastructure

• Playwright test framework with automatic workspace discovery
• Test configuration with 90s timeout, 3 parallel workers, 2 retries on CI
• HTML, JSON, and list reporters with video/screenshot capture on failure
• Yarn 3.8.7 with TypeScript 5.9.3

Utilities

• e2e-test-utils/: Common directory for test setup, configuration, and helpers

Dev Tooling

• ESLint config with TypeScript and Playwright plugins
• Husky pre-commit hooks with lint-staged
• Prettier integration

Example Test Structure

• workspaces/github-issues/e2e-tests/ with placeholder spec and config files

File Structure

.
├── e2e-test-utils/                  # Common test setup and helpers
├── eslint.config.js                 # ESLint configuration
├── package.json                     # Dependencies and scripts
├── playwright.config.ts             # Playwright configuration
├── tsconfig.json                    # TypeScript configuration
└── workspaces/
    └── <plugin-name>/
        └── e2e-tests/               # Plugin-specific E2E tests
            ├── config/              # RHDH configuration
            │   ├── app-config-rhdh.yaml
            │   ├── dynamic-plugins.yaml
            │   └── rhdh-secrets.yaml
            ├── specs/               # Test specifications
            │   └── *.spec.ts
            └── .env.example         # Environment template

Usage

# Run all tests
yarn test:e2e

# Run specific plugin
yarn test:plugin <plugin-name>

# Other commands
yarn test:e2e:headed      # Run with visible browser
yarn test:e2e:ui          # Interactive UI mode
yarn test:e2e:report      # View HTML report

Configuration

Test projects are auto-generated from workspace directories containing e2e-tests/*.spec.ts. Each workspace gets its own Playwright project.

Out of Scope

• Actual test implementation for plugins (separate stories)
• CI/CD pipeline integration (separate story)
• Test guidelines documentation (separate story)

Notes

• GitHub Issues test is currently a placeholder
• Test artifacts written to e2e-test-report/
• Video recording enabled by default (1920x1080)