Add rule for no-fx-interval and include in deprecated-3.0

Part of #32

README.md

@@ -64,6 +64,7 @@ Alternatively, you can pick out rules individually:
     "jquery/no-fade": 2,
     "jquery/no-filter": 2,
     "jquery/no-find": 2,
+    "jquery/no-fx-interval": 2,
     "jquery/no-global-eval": 2,
     "jquery/no-grep": 2,
     "jquery/no-has": 2,

index.js

@@ -25,6 +25,7 @@ module.exports = {
     'no-fade': require('./rules/no-fade'),
     'no-filter': require('./rules/no-filter'),
     'no-find': require('./rules/no-find'),
+    'no-fx-interval': require('./rules/no-fx-interval'),
     'no-global-eval': require('./rules/no-global-eval'),
     'no-grep': require('./rules/no-grep'),
     'no-has': require('./rules/no-has'),
@@ -91,7 +92,7 @@ module.exports = {
         'jquery/no-unbind': 2,
         'jquery/no-delegate': 2,
         'jquery/no-undelegate': 2,
-        // FIXME: `$.fx.interval`
+        'jquery/no-fx-interval': 2,
         'jquery/no-parse-json': 2,
         'jquery/no-unique': 2
       }

rules/no-fx-interval.js

@@ -0,0 +1,24 @@
+'use strict'
+
+module.exports = {
+  meta: {
+    docs: {},
+    schema: []
+  },
+
+  create: function(context) {
+    return {
+      MemberExpression: function(node) {
+        if (node.object.name !== '$') return
+        if (node.property.name !== 'fx') return
+        if (!node.parent.property) return
+        if (node.parent.property.name !== 'interval') return
+
+        context.report({
+          node: node,
+          message: '$.fx.interval is not allowed'
+        })
+      }
+    }
+  }
+}

tests/no-fx-interval.js

@@ -0,0 +1,17 @@
+'use strict'
+
+const rule = require('../rules/no-fx-interval')
+const RuleTester = require('eslint').RuleTester
+
+const error = '$.fx.interval is not allowed'
+
+const ruleTester = new RuleTester()
+ruleTester.run('no-noop', rule, {
+  valid: ['interval', 'fx.interval', '$.interval', 'a.fx.interval', '$.fx'],
+  invalid: [
+    {
+      code: '$.fx.interval',
+      errors: [{message: error, type: 'MemberExpression'}]
+    }
+  ]
+})