Install react-addons-test-utils for future component testing

Author: howardyclo

todomvc/package.json

@@ -44,14 +44,17 @@
     "extract-text-webpack-plugin": "^0.9.1",
     "jest-cli": "^0.8.2",
     "jsx-loader": "^0.13.2",
+    "react-addons-test-utils": "^0.14.3",
     "style-loader": "^0.13.0",
     "webpack": "^1.12.9",
     "webpack-dev-server": "^1.14.0"
   },
   "jest": {
     "scriptPreprocessor": "<rootDir>/node_modules/babel-jest",
     "unmockedModulePathPatterns": [
-      "<rootDir>/node_modules/react"
+      "<rootDir>/node_modules/react",
+      "<rootDir>/node_modules/react-dom",
+      "<rootDir>/node_modules/react-addons-test-utils"
     ],
     "modulePathIgnorePatterns": [
       "<rootDir>/node_modules/"