test: use single file tests as jest entries

Author: LingyuCoder

tests/webpack-test/package.json

@@ -5,8 +5,8 @@
   "license": "MIT",
   "main": "./dist/index.d.ts",
   "scripts": {
-    "test": "cross-env NODE_OPTIONS=\"--experimental-vm-modules --max-old-space-size=4096 --trace-deprecation\" jest",
-    "testu": "cross-env NODE_OPTIONS=\"--experimental-vm-modules --max-old-space-size=4096 --trace-deprecation\" jest -u --forceExit",
+    "test": "cross-env NODE_OPTIONS=\"--experimental-vm-modules --max-old-space-size=4096 --trace-deprecation\" jest --runInBand",
+    "testu": "cross-env NODE_OPTIONS=\"--experimental-vm-modules --max-old-space-size=4096 --trace-deprecation\" jest -u --runInBand --forceExit",
     "test:metric": "node --experimental-vm-modules --max-old-space-size=4096 --trace-deprecation  ../../node_modules/jest/bin/jest.js --json --colors --forceExit | node scripts/test-metric.js",
     "test:metric:json": "cross-env NODE_OPTIONS=\"--experimental-vm-modules --max-old-space-size=4096 --trace-deprecation\" jest --logHeapUsage --json"
   },