Added check for template literals in no-string-refs rule

Author: jenil94

docs/rules/no-string-refs.md

@@ -26,6 +26,22 @@ var Hello = createReactClass({
 });
 ```
 
+```jsx
+var Hello = createReactClass({
+ render: function() {
+  return <div ref={`hello`}>Hello, world.</div>;
+ }
+});
+```
+
+```jsx
+var Hello = createReactClass({
+ render: function() {
+  return <div ref={`hello${index}`}>Hello, world.</div>;
+ }
+});
+```
+
 The following patterns are **not** considered warnings:
 
 ```jsx

lib/rules/no-string-refs.js

@@ -75,8 +75,8 @@ module.exports = {
         node.value &&
         node.value.type === 'JSXExpressionContainer' &&
         node.value.expression &&
-        node.value.expression.type === 'Literal' &&
-        typeof node.value.expression.value === 'string'
+		((node.value.expression.type === 'Literal' && typeof node.value.expression.value === 'string') ||
+		node.value.expression.type === 'TemplateLiteral')
       );
     }
 

tests/lib/rules/no-string-refs.js

@@ -97,5 +97,41 @@ ruleTester.run('no-refs', rule, {
     }, {
       message: 'Using string literals in ref attributes is deprecated.'
     }]
+  },
+  {
+    code: [
+      'var Hello = createReactClass({',
+      '  componentDidMount: function() {',
+      '  var component = this.refs.hello;',
+      '  },',
+      '  render: function() {',
+      '    return <div ref={`hello`}>Hello {this.props.name}</div>;',
+      '  }',
+      '});'
+    ].join('\n'),
+    parser: 'babel-eslint',
+    errors: [{
+      message: 'Using this.refs is deprecated.'
+    }, {
+      message: 'Using string literals in ref attributes is deprecated.'
+    }]
+  },
+  {
+    code: [
+      'var Hello = createReactClass({',
+      '  componentDidMount: function() {',
+      '  var component = this.refs.hello;',
+      '  },',
+      '  render: function() {',
+      '    return <div ref={`hello${index}`}>Hello {this.props.name}</div>;',
+      '  }',
+      '});'
+    ].join('\n'),
+    parser: 'babel-eslint',
+    errors: [{
+      message: 'Using this.refs is deprecated.'
+    }, {
+      message: 'Using string literals in ref attributes is deprecated.'
+    }]
   }]
 });