Add gulp watch for test running

gulpfile.js

@@ -5,6 +5,8 @@ var excludeGitignore = require('gulp-exclude-gitignore');
 var mocha = require('gulp-mocha');
 var nsp = require('gulp-nsp');
 var babel = require('gulp-babel');
+var watch = require('gulp-watch');
+var batch = require('gulp-batch');
 
 // Initialize the babel transpiler so ES2015 files gets compiled
 // when they're loaded
@@ -33,5 +35,11 @@ gulp.task('babel', function () {
     .pipe(gulp.dest('dist'));
 });
 
+gulp.task('watch', function () {
+  watch(['lib/**/*.js', 'test/**/*.js'], batch(function (events, done) {
+    gulp.start('test', done);
+  }));
+});
+
 gulp.task('prepublish', ['nsp', 'babel']);
 gulp.task('default', ['static', 'test']);

package.json

@@ -35,10 +35,12 @@
     "eslint-config-airbnb": "0.0.7",
     "gulp": "^3.6.0",
     "gulp-babel": "^5.1.0",
+    "gulp-batch": "^1.0.5",
     "gulp-eslint": "^0.15.0",
     "gulp-exclude-gitignore": "^1.0.0",
     "gulp-mocha": "^2.0.0",
     "gulp-nsp": "^0.4.5",
+    "gulp-watch": "^4.3.4",
     "lodash": "^3.0.0"
   }
 }