fix(validate): fix parsing of query files containing irregular whitespace characters

will fix issue #4

Author: Mayank1791989

src/query/_shared/__tests__/__snapshots__/parseQuery_toQueryDocument.test.js.snap

@@ -82,6 +82,18 @@ exports[`plain queries 1`] = `
   "
 `;
 
+exports[`replace all irregular whitespace with space 1`] = `
+"
+              
+
+             
+      fragment _ on Viewer {
+        me
+      }
+      
+  "
+`;
+
 exports[`replace inline js fragment with dummy fragment multiline 1`] = `
 "
                   

src/query/_shared/__tests__/parseQuery_toQueryDocument.test.js

@@ -191,3 +191,24 @@ describe('replace inline js fragment with dummy fragment', () => {
   });
 });
 
+test('replace all irregular whitespace with space', () => {
+  // NOTE between '©' and '2017' there is thin space '\u2009' not regular space ' '
+  /* eslint-disable no-irregular-whitespace */
+  const text = `
+    //  © 2017
+
+    Relay.QL\`
+      fragment on Viewer {
+        me
+      }
+    \`,
+  `;
+  /* eslint-enable no-irregular-whitespace */
+
+  const qd = toQueryDocument(
+    new Source(text, 'query.js'),
+    { parser: relayParser, isRelay: true },
+  );
+
+  expect(qd).toMatchSnapshot();
+});

src/query/_shared/parseQuery.js

@@ -9,7 +9,8 @@ import debug from '../../shared/debug';
 
 import MultilineCharacterStream from '../../shared/MultilineCharacterStream';
 
-const whiteSpaceString = text => text.replace(/\S/g, ' ');
+const IRREGULAR_WHITESPACE = '\f\v\u0085\u00A0\ufeff\u00a0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u200b\u202f\u205f\u3000';
+const whiteSpaceString = text => text.replace(new RegExp(`[\\S${IRREGULAR_WHITESPACE}]`, 'g'), ' ');
 
 function placeholderFragment(text: string) {
   const fragmentName = 'F'; // dummy frag name