[Fix] jsx-curly-brace-presence: warns incorrectly on trailing whitespace

Fixes #2427

Author: bc-m

lib/rules/jsx-curly-brace-presence.js

@@ -168,6 +168,10 @@ module.exports = {
       });
     }
 
+    function isWhiteSpaceLiteral(node) {
+      return node.type && node.type === 'Literal' && node.value && jsxUtil.isWhiteSpaces(node.value);
+    }
+
     // Bail out if there is any character that needs to be escaped in JSX
     // because escaping decreases readiblity and the original code may be more
     // readible anyway or intentional for other specific reasons
@@ -178,6 +182,7 @@ module.exports = {
       if (
         (expressionType === 'Literal' || expressionType === 'JSXText') &&
           typeof expression.value === 'string' &&
+          !isWhiteSpaceLiteral(expression) &&
           !needToEscapeCharacterForJSX(expression.raw) && (
           jsxUtil.isJSX(JSXExpressionNode.parent) ||
           !containsQuoteCharacters(expression.value)
@@ -211,10 +216,6 @@ module.exports = {
       );
     }
 
-    function isWhiteSpaceLiteral(node) {
-      return node.type && node.type === 'Literal' && node.value && jsxUtil.isWhiteSpaces(node.value);
-    }
-
     function getAdjacentSiblings(node, children) {
       for (let i = 1; i < children.length - 1; i++) {
         const child = children[i];

tests/lib/rules/jsx-curly-brace-presence.js

@@ -52,9 +52,15 @@ ruleTester.run('jsx-curly-brace-presence', rule, {
     {
       code: '<App>{\' \'}</App>'
     },
+    {
+      code: '<App>{\' \'}\n</App>'
+    },
     {
       code: '<App>{\'     \'}</App>'
     },
+    {
+      code: '<App>{\'     \'}\n</App>'
+    },
     {
       code: '<App>{\' \'}</App>',
       options: [{children: 'never'}]