Issue 19696. Test for potential reference to the element defined in a subclass.

pkg/analysis_server/test/search/element_references_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.search.element_references;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart';
-import '../reflective_tests.dart';
 import 'package:unittest/unittest.dart';
 
+import '../reflective_tests.dart';
 import 'abstract_search_domain.dart';
 
 
 main() {
   groupSep = ' | ';
   runReflectiveTests(ElementReferencesTest);
 }
 
 
 @ReflectiveTestCase()
 class ElementReferencesTest extends AbstractSearchDomainTest {
   Element searchElement;
 
+  void assertHasRef(SearchResultKind kind, String search, bool isPotential) {
+    assertHasResult(kind, search);
+    expect(result.isPotential, isPotential);
+  }
+
   Future findElementReferences(String search, bool includePotential) {
     int offset = findOffset(search);
     return waitForTasksFinished().then((_) {
       Request request = new SearchFindElementReferencesParams(
           testFile,
           offset,
           includePotential).toRequest('0');
       Response response = handleSuccessfulRequest(request);
       var result = new SearchFindElementReferencesResult.fromResponse(response);
       searchId = result.id;
@@ skipping 523 matching lines @@
         assertHasResult(SearchResultKind.INVOCATION, 'test(1);');
         expect(result.isPotential, isFalse);
       }
       {
         assertHasResult(SearchResultKind.INVOCATION, 'test(2);');
         expect(result.isPotential, isTrue);
       }
     });
   }
 
+  test_potential_method_definedInSubclass() {
+    addTestFile('''
+class Base {
+  methodInBase() {
+    test(1);
+  }
+}
+class Derived extends Base {
+  test(_) {} // of Derived
+  methodInDerived() {
+    test(2);
+  }
+}
+globalFunction(Base b) {
+  b.test(3);
+}
+''');
+    return findElementReferences('test(_) {} // of Derived', true).then((_) {
+      assertHasRef(SearchResultKind.INVOCATION, 'test(1);', true);
+      assertHasRef(SearchResultKind.INVOCATION, 'test(2);', false);
+      assertHasRef(SearchResultKind.INVOCATION, 'test(3);', true);
+    });
+  }
+
   test_topLevelVariable_explicit() {
     addTestFile('''
 var vvv = 1;
 main() {
   print(vvv);
   vvv += 3;
   vvv = 2;
   vvv();
 }
 ''');
@@ skipping 66 matching lines @@
 }
 ''');
     return findElementReferences('T> {', false).then((_) {
       expect(searchElement.kind, ElementKind.TYPE_PARAMETER);
       expect(results, hasLength(2));
       assertHasResult(SearchResultKind.REFERENCE, 'T f;');
       assertHasResult(SearchResultKind.REFERENCE, 'T m()');
     });
   }
 }