use babel for tests

.babelrc

@@ -0,0 +1,3 @@
+{
+  "presets": ["modern-node/6.3", "es2016", "stage-1"]
+}

.eslintrc.json

@@ -5,5 +5,8 @@
         "arrow-parens": [2, "as-needed"],
         "curly": [2, "all"],
         "import/no-unresolved": 0
+    },
+    "env": {
+        "browser": true
     }
 }

Gruntfile.coffee

@@ -7,17 +7,7 @@ module.exports = (grunt) ->
     meta:
       banner: '/* <%= pkg.name %> - v<%= pkg.version %> - <%= grunt.template.today("yyyy-mm-dd") %> */\n'
     eslint:
-      target: ['src']
-    coffeelint:
-      src: 'src/**/*.coffee'
-      options:
-        max_line_length:
-          level: 'ignore'
-        line_endings:
-          value: 'unix'
-          level: 'error'
-        no_stand_alone_at:
-          level: 'error'
+      target: ['src', 'test']
     clean:
       options:
         force: true
@@ -36,19 +26,6 @@ module.exports = (grunt) ->
         options:
           presets: ["es2015", "es2016", "stage-1"]
           plugins: ["add-module-exports", "transform-es2015-modules-umd"]
-    coffee:
-      compile:
-        files: [
-          {
-            expand: true
-            cwd: 'src/'
-            src: '**/*.coffee'
-            dest: 'compile/'
-            ext: '.js'
-          }
-        ],
-        options:
-          bare: true
     concat:
       options:
         banner: '<%= meta.banner %>'
@@ -93,7 +70,7 @@ module.exports = (grunt) ->
       else done()
     )
 
-  grunt.registerTask 'default', ['eslint', 'coffeelint', 'clean', 'babel', 'coffee', 'concat', 'uglify']
+  grunt.registerTask 'default', ['eslint', 'clean', 'babel', 'concat', 'uglify']
   grunt.registerTask 'test:protractor-local', [
     'default',
     'webdriver',

package.json

@@ -27,25 +27,26 @@
   "license": "MIT",
   "readmeFilename": "README.md",
   "devDependencies": {
-    "babel-eslint": "^6.1.0",
+    "babel-eslint": "^6.1.2",
     "babel-plugin-add-module-exports": "^0.2.1",
-    "babel-plugin-transform-es2015-modules-umd": "^6.8.0",
-    "babel-preset-es2015": "^6.9.0",
-    "babel-preset-es2016": "^6.11.0",
-    "babel-preset-stage-1": "^6.5.0",
+    "babel-plugin-transform-es2015-modules-umd": "^6.12.0",
+    "babel-preset-es2015": "^6.13.2",
+    "babel-preset-es2016": "^6.11.3",
+    "babel-preset-modern-node": "^2.3.0",
+    "babel-preset-stage-1": "^6.13.0",
+    "babel-register": "^6.11.6",
     "coffee-script": "~1.8.0",
-    "eslint-config-airbnb-base": "^3.0.1",
-    "eslint-plugin-import": "^1.10.0",
+    "eslint": "^3.2.2",
+    "eslint-config-airbnb-base": "^5.0.1",
+    "eslint-plugin-import": "^1.12.0",
     "grunt": "~0.4.5",
     "grunt-babel": "^6.0.0",
     "grunt-cli": "^1.2.0",
-    "grunt-coffeelint": "~0.0.13",
     "grunt-contrib-clean": "~0.6.0",
-    "grunt-contrib-coffee": "~0.12.0",
     "grunt-contrib-concat": "~0.5.0",
     "grunt-contrib-connect": "0.8.0",
     "grunt-contrib-uglify": "~0.6.0",
-    "grunt-eslint": "^18.1.0",
+    "grunt-eslint": "^19.0.0",
     "grunt-protractor-runner": "1.1.4",
     "load-grunt-tasks": "^3.5.0",
     "mkdirp": "0.5.0",

src/infinite-scroll.js

@@ -72,15 +72,15 @@ angular.module(MODULE_NAME, [])
           if (offsetTop(container) !== undefined) {
             containerTopOffset = offsetTop(container);
           }
-          elementBottom = offsetTop(elem) - containerTopOffset + height(elem);
+          elementBottom = (offsetTop(elem) - containerTopOffset) + height(elem);
         }
 
         if (useDocumentBottom) {
           elementBottom = height((elem[0].ownerDocument || elem[0].document).documentElement);
         }
 
         const remaining = elementBottom - containerBottom;
-        const shouldScroll = remaining <= height(container) * scrollDistance + 1;
+        const shouldScroll = remaining <= (height(container) * scrollDistance) + 1;
 
         if (shouldScroll) {
           checkWhenEnabled = true;

test/.eslintrc.json

@@ -0,0 +1,14 @@
+{
+    "env": {
+        "protractor": true,
+        "mocha": true
+    },
+    "globals": {
+        "expect": false
+    },
+    "rules": {
+        "import/no-extraneous-dependencies": 0,
+        "prefer-arrow-callback": 0,
+        "func-names": 0
+    }
+}

test/protractor.conf.js

@@ -1,12 +1,14 @@
+require('babel-register');
+
 exports.config = {
-  specs: ['**/*.spec.coffee'],
+  specs: ['**/*.spec.js'],
   baseUrl: 'http://localhost:8000/',
   allScriptsTimeout: 30000,
   getPageTimeout: 30000,
   multiCapabilities: [
     {
       browserName: 'chrome',
       chromeOptions: { args: ['--no-sandbox'] },
-    }
+    },
   ],
 };