Rewrite prefer-es6-class tests with template literals

Author: jseminck

tests/lib/rules/prefer-es6-class.js

@@ -30,80 +30,80 @@ const ruleTester = new RuleTester({parserOptions});
 ruleTester.run('prefer-es6-class', rule, {
 
   valid: [{
-    code: [
-      'class Hello extends React.Component {',
-      '  render() {',
-      '    return <div>Hello {this.props.name}</div>;',
-      '  }',
-      '}',
-      'Hello.displayName = \'Hello\''
-    ].join('\n')
+    code: `
+      class Hello extends React.Component {
+        render() {
+          return <div>Hello {this.props.name}</div>;
+        }
+      }
+      Hello.displayName = 'Hello'
+    `
   }, {
-    code: [
-      'export default class Hello extends React.Component {',
-      '  render() {',
-      '    return <div>Hello {this.props.name}</div>;',
-      '  }',
-      '}',
-      'Hello.displayName = \'Hello\''
-    ].join('\n')
+    code: `
+      export default class Hello extends React.Component {
+        render() {
+          return <div>Hello {this.props.name}</div>;
+        }
+      }
+      Hello.displayName = 'Hello'
+    `
   }, {
-    code: [
-      'var Hello = "foo";',
-      'module.exports = {};'
-    ].join('\n')
+    code: `
+      var Hello = "foo";
+      module.exports = {};
+    `
   }, {
-    code: [
-      'var Hello = createReactClass({',
-      '  render: function() {',
-      '    return <div>Hello {this.props.name}</div>;',
-      '  }',
-      '});'
-    ].join('\n'),
+    code: `
+      var Hello = createReactClass({
+        render: function() {
+          return <div>Hello {this.props.name}</div>;
+        }
+      });
+    `,
     options: ['never']
   }, {
-    code: [
-      'class Hello extends React.Component {',
-      '  render() {',
-      '    return <div>Hello {this.props.name}</div>;',
-      '  }',
-      '}'
-    ].join('\n'),
+    code: `
+      class Hello extends React.Component {
+        render() {
+          return <div>Hello {this.props.name}</div>;
+        }
+      }
+    `,
     options: ['always']
   }],
 
   invalid: [{
-    code: [
-      'var Hello = createReactClass({',
-      '  displayName: \'Hello\',',
-      '  render: function() {',
-      '    return <div>Hello {this.props.name}</div>;',
-      '  }',
-      '});'
-    ].join('\n'),
+    code: `
+      var Hello = createReactClass({
+        displayName: 'Hello',
+        render: function() {
+          return <div>Hello {this.props.name}</div>;
+        }
+      });
+    `,
     errors: [{
       message: 'Component should use es6 class instead of createClass'
     }]
   }, {
-    code: [
-      'var Hello = createReactClass({',
-      '  render: function() {',
-      '    return <div>Hello {this.props.name}</div>;',
-      '  }',
-      '});'
-    ].join('\n'),
+    code: `
+      var Hello = createReactClass({
+        render: function() {
+          return <div>Hello {this.props.name}</div>;
+        }
+      });
+    `,
     options: ['always'],
     errors: [{
       message: 'Component should use es6 class instead of createClass'
     }]
   }, {
-    code: [
-      'class Hello extends React.Component {',
-      '  render() {',
-      '    return <div>Hello {this.props.name}</div>;',
-      '  }',
-      '}'
-    ].join('\n'),
+    code: `
+      class Hello extends React.Component {
+        render() {
+          return <div>Hello {this.props.name}</div>;
+        }
+      }
+    `,
     options: ['never'],
     errors: [{
       message: 'Component should use createClass instead of es6 class'