Merge pull request then#91 from then/code-coverage

Add code coverage

Author: ForbesLindesay

.gitignore

@@ -4,3 +4,4 @@ node_modules
 /lib
 /domains
 /setimmediate
+coverage

.travis.yml

@@ -1,3 +1,12 @@
 language: node_js
+sudo: false
+
 node_js:
   - "0.10"
+  - "0.12"
+  - "iojs"
+
+after_success:
+  - npm run coverage
+  - npm i coveralls
+  - cat ./coverage/lcov.info | coveralls

package.json

@@ -12,7 +12,8 @@
     "test": "mocha --bail --timeout 200 --slow 99999 -R dot && npm run test-memory-leak",
     "test-resolve": "mocha test/resolver-tests.js --timeout 200 --slow 999999",
     "test-extensions": "mocha test/extensions-tests.js --timeout 200 --slow 999999",
-    "test-memory-leak": "node --expose-gc test/memory-leak.js"
+    "test-memory-leak": "node --expose-gc test/memory-leak.js",
+    "coverage": "istanbul cover node_modules/mocha/bin/_mocha -- --bail --timeout 200 --slow 99999 -R dot"
   },
   "repository": {
     "type": "git",
@@ -23,11 +24,12 @@
   "devDependencies": {
     "acorn": "^1.0.1",
     "better-assert": "*",
+    "istanbul": "^0.3.13",
     "mocha": "*",
     "promises-aplus-tests": "*",
     "rimraf": "^2.3.2"
   },
   "dependencies": {
     "asap": "~2.0.1"
   }
-}
+}