Relay: Test babel-relay-plugin with Jest

Summary: Configures the Babel Relay Plugin to use Jest for testing.

Closes #423

Reviewed By: @kassens

Differential Revision: D2507183

fb-gh-sync-id: 1d4b3bececb3f02c9c3283b2020f06bf6a95f451

scripts/babel-relay-plugin/package.json

@@ -8,7 +8,7 @@
   "scripts": {
     "build": "rm -rf lib; babel src --out-dir lib --ignore __tests__",
     "prepublish": "npm run build",
-    "test": "./testjs",
+    "test": "jest",
     "update-schema": "babel-node ./src/tools/generateSchemaJson.js",
     "update-fixtures": "babel-node ./src/tools/regenerateFixtures.js"
   },
@@ -20,11 +20,22 @@
   ],
   "devDependencies": {
     "babel": "^5.8.23",
-    "jasmine-node": "1.14.5",
+    "babel-jest": "^5.3.0",
+    "jest-cli": "^0.5.8",
     "minimist": "^1.1.3"
   },
   "dependencies": {
     "babel-core": "^5.8.25",
     "graphql": "0.4.2"
+  },
+  "jest": {
+    "scriptPreprocessor": "<rootDir>/node_modules/babel-jest",
+    "persistModuleRegistryBetweenSpecs": true,
+    "preprocessorIgnorePatterns": [
+      "<rootDir>/node_modules/"
+    ],
+    "unmockedModulePathPatterns": [
+      "<rootDir>/"
+    ]
   }
 }