changed: switched from PhantomJS to Chrome headless testing

.travis.yml

@@ -1,6 +1,15 @@
 sudo: false
+dist: trusty
 language: node_js
 node_js:
-  - "4"
+  - "6"
+addons:
+  apt:
+    packages:
+      - google-chrome-stable
 before_script:
   - npm install -g grunt-cli
+  # next 3 lines temporary until google-chrome-stable is 59+
+  - export DISPLAY=:99.0
+  - sh -e /etc/init.d/xvfb start &
+  - sleep 3

Gruntfile.js

@@ -3,9 +3,7 @@
 
 module.exports = function(grunt) {
 
-	require('time-grunt')(grunt);
-
-	grunt.initConfig({
+    grunt.initConfig({
 
         clean: {
             dist: {
@@ -43,28 +41,26 @@ module.exports = function(grunt) {
             }
         },
 
-		karma: {
-			options: {
-				singleRun: true,
-				reporters: ['dots']
-			},
-			headless: {
-				configFile: 'test/karma.conf.js',
-				browsers: ['PhantomJS']
-			},
-			browsers: {
-				configFile: 'test/karma.conf.js',
-				browsers: ['Chrome', 'Firefox', 'Safari', 'Opera']
-			}
-		}
-	});
+        karma: {
+            options: {
+                singleRun: true,
+                reporters: ['dots'],
+                configFile: 'test/karma.conf.js',
+            },
+            headless: {   
+                browsers: ['ChromeHeadless']
+            },
+            browsers: {
+                browsers: ['Chrome', 'Firefox', 'Safari', 'Opera']
+            }
+        }
+    });
 
     grunt.loadNpmTasks('grunt-contrib-clean');
     grunt.loadNpmTasks('grunt-contrib-concat');
     grunt.loadNpmTasks('grunt-contrib-uglify');
     grunt.loadNpmTasks('grunt-peg');
-	grunt.loadNpmTasks('grunt-karma');
-	grunt.loadNpmTasks('time-grunt');
+    grunt.loadNpmTasks('grunt-karma');
 
     grunt.registerTask('dist', [
         'clean:dist',
@@ -73,4 +69,3 @@ module.exports = function(grunt) {
         'uglify:dist'
     ]);
 };
-

package.json

@@ -21,21 +21,18 @@
     "chai": "2.x.x",
     "grunt": "1.0.x",
     "grunt-karma": "2.0.x",
-    "grunt-mocha-test": "0.13.x",
-    "karma": "1.5.x",
+    "karma": "1.7.x",
     "karma-chai": "0.1.x",
-    "karma-chrome-launcher": "2.0.x",
+    "karma-chrome-launcher": "2.1.x",
     "karma-firefox-launcher": "1.0.x",
     "karma-mocha": "1.3.x",
     "karma-opera-launcher": "1.0.x",
-    "karma-phantomjs-launcher": "1.0.x",
     "karma-safari-launcher": "1.0.x",
-    "mocha": "3.2.x",
-    "phantomjs-prebuilt": "2.1.x",
+    "mocha": "3.4.x",
     "time-grunt": "1.4.x",
-    "grunt-contrib-clean": "1.0.x",
+    "grunt-contrib-clean": "1.1.x",
     "grunt-contrib-concat": "1.0.x",
-    "grunt-contrib-uglify": "2.2.x",
+    "grunt-contrib-uglify": "3.0.x",
     "grunt-peg": "2.0.1"
   }
 }

test/spec/functions-openrosa.spec.js

@@ -570,8 +570,7 @@ describe('Custom "OpenRosa" functions', function() {
 
     it('log10()', function() {
         [
-            // note this has a tiny rounding error because Math.log10 is not supported in PhantomJS
-            ['log10(2)', doc, 0.30102999566398114],
+            ['log10(2)', doc, 0.3010299956639812],
             ['log10("NaN")', doc, NaN],
             ['log10("a")', doc, NaN],
         ].forEach(function(t) {
@@ -723,7 +722,7 @@ describe('Custom "OpenRosa" functions', function() {
         expect(test).to.throw(win.Error);
     });
 
-    it('abs', function(){
+    it('abs', function() {
         [
             ['abs(10.5)', 10.5],
             ['abs(-10.5)', 10.5],