Issue 24442. Fix for renaming library names with spaces.

pkg/analysis_server/test/services/refactoring/rename_library_test.dart

Index: pkg/analysis_server/test/services/refactoring/rename_library_test.dart
diff --git a/pkg/analysis_server/test/services/refactoring/rename_library_test.dart b/pkg/analysis_server/test/services/refactoring/rename_library_test.dart
index 619a2485d8d3ecc5b51bf58b5a2425d6488773af..b08132dc397a51598e486fd79bed9015e91ac054 100644
--- a/pkg/analysis_server/test/services/refactoring/rename_library_test.dart
+++ b/pkg/analysis_server/test/services/refactoring/rename_library_test.dart
@@ -71,6 +71,35 @@ part of the.new.name;
 ''');
   }
 
+  test_createChange_hasWhitespaces() async {
+    Source unitSource = addSource(
+        '/part.dart',
+        '''
+part of my .  app;
+''');
+    indexTestUnit('''
+library my    . app;
+part 'part.dart';
+''');
+    index.index(
+        context, context.resolveCompilationUnit2(unitSource, testSource));
+    // configure refactoring
+    _createRenameRefactoring();
+    expect(refactoring.refactoringName, 'Rename Library');
+    expect(refactoring.elementKindName, 'library');
+    refactoring.newName = 'the.new.name';
+    // validate change
+    await assertSuccessfulRefactoring('''
+library the.new.name;
+part 'part.dart';
+''');
+    assertFileChangeResult(
+        '/part.dart',
+        '''
+part of the.new.name;
+''');
+  }
+
   void _createRenameRefactoring() {
     createRenameRefactoringForElement(testUnitElement.library);
   }