| `PUPPETEER_TEST_EXTRA_ARGS` | Testing framework extra options based on [Jest](https://jestjs.io/docs/en/cli) | _none_ |
| `REVIEW_ENABLED` | Set to enable Puppeteer tests on review environments (dynamic environments instantiated on development branches) | _none_ (disabled) |
| `REVIEW_ENABLED` | Set to `true` to enable Puppeteer tests on review environments (dynamic environments instantiated on development branches) | _none_ (disabled) |