Switch to babel-plugin-istanbul and nyc

.babelrc

@@ -1,5 +1,5 @@
 {
-  plugins: [
+  "plugins": [
     "transform-decorators-legacy",
     ["transform-es2015-template-literals", { "loose": true }],
     "transform-es2015-literals",
@@ -22,5 +22,10 @@
     "transform-object-rest-spread",
     "transform-react-jsx",
     "syntax-jsx"
-  ]
+  ],
+  "env": {
+    "test": {
+      "plugins": ["istanbul"]
+    }
+  }
 }

.gitignore

@@ -3,4 +3,5 @@ npm-debug.log
 .DS_Store
 dist
 lib
+.nyc_output
 coverage

.travis.yml

@@ -3,4 +3,6 @@ node_js:
   - "5"
 script:
   - npm run lint
-  - npm test
+  - npm run test:cov
+after_success:
+  - npm run coverage

codecov.yml

@@ -0,0 +1 @@
+comment: false

package.json

@@ -11,9 +11,10 @@
     "clean": "rimraf lib dist coverage",
     "lint": "eslint src test",
     "prepublish": "npm run clean && npm run build",
-    "test": "mocha --compilers js:babel-register --recursive --require ./test/setup.js",
+    "test": "cross-env NODE_ENV=test mocha --compilers js:babel-register --recursive --require ./test/setup.js",
     "test:watch": "npm test -- --watch",
-    "test:cov": "babel-node ./node_modules/isparta/bin/isparta cover ./node_modules/mocha/bin/_mocha -- --recursive"
+    "test:cov": "cross-env NODE_ENV=test nyc npm test",
+    "coverage": "nyc report --reporter=text-lcov > coverage.lcov && codecov"
   },
   "repository": {
     "type": "git",
@@ -47,6 +48,7 @@
     "babel-eslint": "^6.1.2",
     "babel-loader": "^6.2.0",
     "babel-plugin-check-es2015-constants": "^6.3.13",
+    "babel-plugin-istanbul": "^2.0.0",
     "babel-plugin-syntax-jsx": "^6.3.13",
     "babel-plugin-transform-decorators-legacy": "^1.2.0",
     "babel-plugin-transform-es2015-arrow-functions": "^6.3.13",
@@ -70,17 +72,18 @@
     "babel-plugin-transform-react-display-name": "^6.4.0",
     "babel-plugin-transform-react-jsx": "^6.4.0",
     "babel-register": "^6.3.13",
+    "codecov": "^1.0.1",
     "cross-env": "^1.0.7",
     "es3ify": "^0.2.0",
     "eslint": "^3.3.1",
     "eslint-plugin-import": "^1.13.0",
     "eslint-plugin-react": "^6.1.1",
     "expect": "^1.8.0",
     "glob": "^6.0.4",
-    "isparta": "4.0.0",
-    "istanbul": "^0.3.17",
+    "istanbul": "^0.4.4",
     "jsdom": "~5.4.3",
     "mocha": "^2.2.5",
+    "nyc": "^8.1.0",
     "react": "^0.14.0",
     "react-addons-test-utils": "^0.14.0",
     "react-dom": "^0.14.0",
@@ -102,5 +105,9 @@
     "transform": [
       "loose-envify"
     ]
+  },
+  "nyc": {
+    "sourceMap": false,
+    "instrument": false
   }
 }