Merge c8cccc9 into 96a78ca

package.json

@@ -18,13 +18,15 @@
     "profile": "node --prof --no-logfile-per-isolate --trace-deopt --trace-opt-verbose perf/profiler.js > deopt.out && node --prof-process v8.log > v8.out",
     "prebuild": "ts-node prebuild/prebuild.ts",
     "build": "tsc",
+    "build:watch": "tsc -w",
     "build:publish-types": "tsc -p tsconfig.publish.types.json && node ./buildTypes.js",
     "build:publish-cjs": "tsc -p tsconfig.publish.json",
     "build:publish-esm": "tsc -p tsconfig.publish.json --module es2015 --moduleResolution node --outDir lib/esm",
     "webbuild": "browserify lib/fast-check.js --s fastcheck | uglifyjs -cm > lib/bundle.js",
-    "watch": "tsc -w",
     "test": "npm run build && jest --config jest.unit.config.js --coverage",
+    "test:watch": "jest --config jest.unit.config.js --watch",
     "e2e": "jest --config jest.e2e.config.js",
+    "e2e:watch": "jest --config jest.e2e.config.js --watch",
     "test:rollup-esm": "rollup --config test/rollup/esm/rollup.config.js && node test/rollup/esm/dist/main.js",
     "test:rollup-iife": "rollup --config test/rollup/iife/rollup.config.js && node test/rollup/iife/dist/main.js",
     "coverage": "cat ./coverage/lcov.info | coveralls",