message: Actually run gen-tsd tests in CI.
diff: "build:watch": "tsc --watch",
  "prepack": "npm run build",
  "prepublishOnly": "npm run test",
  - "test": "npm run lint && npm run test:setup && npm run build && mocha",
  + "test": "npm run test:unit",
  + "test:unit": "npm run lint && npm run test:setup && npm run build && mocha",
  "test:watch": "tsc-then -- mocha --color",
  "test:setup": "scripts/setup-fixtures.sh",
  "test:make-goldens": "npm run build && scripts/make-goldens.js"
  