Issue 26249. Quick Assist to convert final fields into getters.

pkg/analysis_server/test/services/correction/assist_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library test.services.correction.assist;
 
 import 'dart:async';
 
 import 'package:analysis_server/plugin/edit/assist/assist_core.dart';
 import 'package:analysis_server/plugin/protocol/protocol.dart';
@@ skipping 1751 matching lines @@
 main(List<String> items) {
   for (int k = 0; k < items.length; k++) {
     String item = items[k];
     print(item);
     int i = 0, j = 1;
   }
 }
 ''');
   }
 
+  test_convertToGetter_BAD_noInitializer() async {
+    resolveTestUnit('''
+class A {
+  final int foo;
+}
+''');
+    await assertNoAssistAt('foo', DartAssistKind.CONVERT_INTO_GETTER);
+  }
+
+  test_convertToGetter_BAD_notFinal() async {
+    resolveTestUnit('''
+class A {
+  int foo = 1;
+}
+''');
+    await assertNoAssistAt('foo', DartAssistKind.CONVERT_INTO_GETTER);
+  }
+
+  test_convertToGetter_BAD_notSingleField() async {
+    resolveTestUnit('''
+class A {
+  final int foo = 1, bar = 2;
+}
+''');
+    await assertNoAssistAt('foo', DartAssistKind.CONVERT_INTO_GETTER);
+  }
+
+  test_convertToGetter_OK() async {
+    resolveTestUnit('''
+const myAnnotation = const Object();
+class A {
+  @myAnnotation
+  final int foo = 1 + 2;
+}
+''');
+    await assertHasAssistAt(
+        'foo =',
+        DartAssistKind.CONVERT_INTO_GETTER,
+        '''
+const myAnnotation = const Object();
+class A {
+  @myAnnotation
+  int get foo => 1 + 2;
+}
+''');
+  }
+
+  test_convertToGetter_OK_noType() async {
+    resolveTestUnit('''
+class A {
+  final foo = 42;
+}
+''');
+    await assertHasAssistAt(
+        'foo =',
+        DartAssistKind.CONVERT_INTO_GETTER,
+        '''
+class A {
+  get foo => 42;
+}
+''');
+  }
+
   test_convertToIsNot_BAD_is_alreadyIsNot() async {
     resolveTestUnit('''
 main(p) {
   p is! String;
 }
 ''');
     await assertNoAssistAt('is!', DartAssistKind.CONVERT_INTO_IS_NOT);
   }
 
   test_convertToIsNot_BAD_is_noEnclosingParenthesis() async {
@@ skipping 2338 matching lines @@
       positions.add(new Position(testFile, offset));
     }
     return positions;
   }
 
   void _setStartEndSelection() {
     offset = findOffset('// start\n') + '// start\n'.length;
     length = findOffset('// end') - offset;
   }
 }