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Running and Writing Tests

The ATT&CK Data Model uses Vitest for testing.

Execute the full suite​

Running the tests is straightforward enough:

npm test

Watch mode​

npm run test:interactive

Vitest is configured in vitest.config.ts with:

  • Node environment
  • Global describe/it/expect
  • Path alias @ → ./src

Coverage​

npm run test:coverage

Coverage reports are not required for PRs but strongly encouraged for new functionality.

Test helpers​

  • test/vitest.setup.ts – global test framework setup

When adding new schemas or refinement logic:

  1. Write positive test cases (schema.parse passes)
  2. Write negative test cases that assert specific error messages