Enable coverage on travis

.eslintignore

@@ -1,3 +1,5 @@
+.nyc_output
 build
-test
+coverage
 lib
+test

.gitignore

@@ -1,3 +1,5 @@
+.nyc_output
 build
+coverage
 lib
 node_modules

.travis.yml

@@ -5,16 +5,20 @@ sudo: false
 language: node_js
 
 node_js:
- - "6"
- - "5"
- - "4"
- - "0.12"
+  - "6"
+  - "5"
+  - "4"
+  - "0.12"
 
 before_script: make bootstrap-babel
 
 script:
- - npm test
- - make test-babel
+  - npm run test_cov
+  - make test-babel
+
+after_success:
+  - ./node_modules/.bin/nyc report --reporter=lcov > coverage.lcov
+  - bash <(curl -s https://codecov.io/bash)
 
 notifications:
   slack: babeljs:5Wy4QX13KVkGy9CnU0rmvgeK

package.json

@@ -25,6 +25,7 @@
     "babel-preset-stage-0": "^6.5.0",
     "kcheck": "^2.0.1",
     "lodash": "^4.6.1",
+    "nyc": "^7.0.0",
     "unicode-9.0.0": "~0.7.0"
   },
   "bin": {
@@ -32,8 +33,10 @@
   },
   "scripts": {
     "test": "npm run build && npm run lint && ava test/",
+    "test_cov": "npm run build && npm run lint && nyc ava test/",
     "lint": "kcheck",
     "build": "babel src --out-dir lib",
+    "preversion": "npm run test",
     "watch": "babel src --out-dir lib --watch"
   }
 }