message: Run tests in band
diff: "scripts": {
  "cleanup": "shx rm -rf dist/",
  "test:watch": "yarn test --watch",
  - "test": "jest",
  + "test": "jest --runInBand",
  "test:all": "yarn test && yarn test:env && yarn test:playgrounds && yarn test:e2e",
  "test:env": "yarn build && yarn test:env:browser && yarn test:env:nodejs && yarn test:env:esm && yarn test:env:ts",
  "test:env:browser": "yarn --cwd tests/env/express && yarn --cwd tests/env/express test",
  