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WordCamp Blocks

Getting Started

  1. cd into this directory and run npm install.
  2. Run npm run build to initialize the build files.
  3. Run npm start while developing to continuously watch the files.

Testing

We use Jest for testing, run npm test. With Jest, you can create snapshot tests for components.

Writing tests

  1. Follow the example in source/components/item/tests/index.test.js
  2. The first time you run npm test with new tests, it will generate the snapshots.
  3. If you need to update existing snapshots, run npm test -- --updateSnapshot

You can also write non-snapshot tests using Jest to test regular function behavior, see expect docs for examples.

Running tests

Run all tests with npm test, or run specific tests by passing in a path, npm test [path-to-file-or-folder]

If the component's output doesn't match the snapshot, the test fails. This is usually because the component changed, either intentionally or not. If it's not an intentional change, you just caught a bug 🙂

If the component changed intentionally:

  • Regenerate the snapshot: npm test -- --updateSnapshot
  • Review the changes, and commit the new snapshot with the component changes