feat(rules): add 'no-browser-driver' rule

index.js

@@ -30,6 +30,7 @@ var noArrayFinderMethods = require('./lib/rules/no-array-finder-methods')
 var validLocatorType = require('./lib/rules/valid-locator-type')
 var noCompoundClasses = require('./lib/rules/no-compound-classes')
 var useCountMethod = require('./lib/rules/use-count-method')
+var noBrowserDriver = require('./lib/rules/no-browser-driver')
 
 module.exports = {
   rules: {
@@ -62,7 +63,8 @@ module.exports = {
     'no-array-finder-methods': noArrayFinderMethods,
     'valid-locator-type': validLocatorType,
     'no-compound-classes': noCompoundClasses,
-    'use-count-method': useCountMethod
+    'use-count-method': useCountMethod,
+    'no-browser-driver': noBrowserDriver
   },
   configs: {
     recommended: {
@@ -96,7 +98,8 @@ module.exports = {
         'protractor/no-angular-attributes': 1,
         'protractor/use-count-method': 1,
         'protractor/use-promise-all': 0,
-        'protractor/by-css-shortcut': 0
+        'protractor/by-css-shortcut': 0,
+        'protractor/no-browser-driver': 0
       },
       globals: {
         'browser': false,

lib/rules/no-browser-driver.js

@@ -0,0 +1,27 @@
+'use strict'
+
+module.exports = {
+  meta: {
+    schema: []
+  },
+
+  create: function (context) {
+    // console.log(context)
+    return {
+      'MemberExpression': function (node) {
+        var object = node.object
+        if (object.name === 'browser') {
+          // when trying `var d = browser.driver;`
+          object = node
+        }
+        if (object.object && object.object.name === 'browser' &&
+          object.property && object.property.name === 'driver') {
+          context.report({
+            node: node,
+            message: 'Unexpected use of browser.driver instead of browser'
+          })
+        }
+      }
+    }
+  }
+}

test/rules/no-browser-driver.js

@@ -0,0 +1,46 @@
+'use strict'
+
+var rule = require('../../lib/rules/no-browser-driver')
+var RuleTester = require('eslint').RuleTester
+var eslintTester = new RuleTester()
+
+eslintTester.run('no-browser-driver', rule, {
+  valid: [
+    'browser.get();',
+    'browser.get("mypage");',
+    'browser.sleep(1000);',
+    'browser.getTitle();',
+    'browser.method(function() {});',
+    'var test = browser.get("MYPAGE");',
+    'var test = browser.attribute;'
+  ],
+
+  invalid: [
+    {
+      code: 'browser.driver.sleep(2000);',
+      errors: [{
+        message: 'Unexpected use of browser.driver instead of browser'
+      }]
+    },
+    {
+      code: 'var test = browser.driver.getTitle();',
+      errors: [
+        {
+          message: 'Unexpected use of browser.driver instead of browser'
+        }
+      ]
+    },
+    {
+      code: 'var test = browser.driver.attribute;',
+      errors: [{
+        message: 'Unexpected use of browser.driver instead of browser'
+      }]
+    },
+    {
+      code: 'var driver = browser.driver;',
+      errors: [{
+        message: 'Unexpected use of browser.driver instead of browser'
+      }]
+    }
+  ]
+})