'use strict';
  
  var gulp = require('gulp');
  
  var $ = require('gulp-load-plugins')();
  
  var wiredep = require('wiredep');
  
  var paths = gulp.paths;
  
  function runTests (singleRun, done) {
    var bowerDeps = wiredep({
      directory: 'bower_components',
      exclude: ['bootstrap-sass-official'],
      dependencies: true,
      devDependencies: true
    });
  
    var testFiles = bowerDeps.js.concat([
      paths.src + '/{app,components}/**/*.js'
    ]);
  
    gulp.src(testFiles)
      .pipe($.karma({
        configFile: 'karma.conf.js',
        action: (singleRun)? 'run': 'watch'
      }))
      .on('error', function (err) {
        // Make sure failed tests cause gulp to exit non-zero
        throw err;
      });
  }
  
  gulp.task('test', function (done) { runTests(true /* singleRun */, done) });
  gulp.task('test:auto', function (done) { runTests(false /* singleRun */, done) });