Comprehensive test package for tsParticles core engine using Vitest and jsdom.

1. Install dependencies from the repository root
2. Run all tests or watch specific test files
3. Check coverage reports for CI validation

From the repository root:

pnpm i
pnpm --filter @tsparticles/tests test

• pnpm prettify — Format source code with Prettier
• pnpm prettify:ci — Check formatting (CI mode)
• pnpm lint — Run ESLint and auto-fix issues
• pnpm lint:ci — Check linting (CI mode)
• pnpm build — Lint, format, and run tests
• pnpm build:ci — CI build with strict checks
• pnpm test — Run all tests
• pnpm test:particle — Run Particle-specific tests only
• pnpm test:ui — Run tests in watch mode with UI
• pnpm test:ci — CI test run with coverage

Tests use:

• Vitest as the test runner
• jsdom for DOM simulation
• canvas package for canvas testing
• Custom fixtures in src/Fixture/
• Coverage tracking via v8 provider (see vitest.config.ts)

• Tests require workspace dependencies to be built first
• Canvas tests need the native canvas package; install it if missing
• Ensure deterministic tests: avoid timing assertions without explicit ticks

• Main docs: https://particles.js.org/docs/
• Repository README: https://github.com/tsparticles/tsparticles/blob/main/README.md