Issue 28386. Implement search for potential usages with the new analysis driver.

pkg/analyzer/test/src/dart/analysis/search_test.dart

Index: pkg/analyzer/test/src/dart/analysis/search_test.dart
diff --git a/pkg/analyzer/test/src/dart/analysis/search_test.dart b/pkg/analyzer/test/src/dart/analysis/search_test.dart
index 29faa9f1d841f31da6f617cc4675d8a653274066..74616121ba88b2905d06adc9d9056676f199cd10 100644
--- a/pkg/analyzer/test/src/dart/analysis/search_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/search_test.dart
@@ -99,6 +99,74 @@ import 'not-dart.txt';
     expect(await driver.search.classMembers(regExp), isEmpty);
   }
 
+  test_searchMemberReferences_qualified_resolved() async {
+    await _resolveTestUnit('''
+class C {
+  var test;
+}
+main(C c) {
+  print(c.test);
+  c.test = 1;
+  c.test += 2;
+  c.test();
+}
+''');
+    await _verifyNameReferences('test', []);
+  }
+
+  test_searchMemberReferences_qualified_unresolved() async {
+    await _resolveTestUnit('''
+main(p) {
+  print(p.test);
+  p.test = 1;
+  p.test += 2;
+  p.test();
+}
+''');
+    Element main = _findElement('main');
+    await _verifyNameReferences('test', <ExpectedResult>[
+      _expectIdQU(main, SearchResultKind.READ, 'test);'),
+      _expectIdQU(main, SearchResultKind.WRITE, 'test = 1;'),
+      _expectIdQU(main, SearchResultKind.READ_WRITE, 'test += 2;'),
+      _expectIdQU(main, SearchResultKind.INVOCATION, 'test();'),
+    ]);
+  }
+
+  test_searchMemberReferences_unqualified_resolved() async {
+    await _resolveTestUnit('''
+class C {
+  var test;
+  main() {
+    print(test);
+    test = 1;
+    test += 2;
+    test();
+  }
+}
+''');
+    await _verifyNameReferences('test', []);
+  }
+
+  test_searchMemberReferences_unqualified_unresolved() async {
+    await _resolveTestUnit('''
+class C {
+  main() {
+    print(test);
+    test = 1;
+    test += 2;
+    test();
+  }
+}
+''');
+    Element main = _findElement('main');
+    await _verifyNameReferences('test', <ExpectedResult>[
+      _expectIdU(main, SearchResultKind.READ, 'test);'),
+      _expectIdU(main, SearchResultKind.WRITE, 'test = 1;'),
+      _expectIdU(main, SearchResultKind.READ_WRITE, 'test += 2;'),
+      _expectIdU(main, SearchResultKind.INVOCATION, 'test();'),
+    ]);
+  }
+
   test_searchReferences_ClassElement_definedInside() async {
     await _resolveTestUnit('''
 class A {};
@@ -1013,6 +1081,26 @@ class NoMatchABCDE {}
     return _expectId(element, kind, search, isQualified: true, length: length);
   }
 
+  /**
+   * Create [ExpectedResult] for a qualified and unresolved match.
+   */
+  ExpectedResult _expectIdQU(
+      Element element, SearchResultKind kind, String search,
+      {int length}) {
+    return _expectId(element, kind, search,
+        isQualified: true, isResolved: false, length: length);
+  }
+
+  /**
+   * Create [ExpectedResult] for a unqualified and unresolved match.
+   */
+  ExpectedResult _expectIdU(
+      Element element, SearchResultKind kind, String search,
+      {int length}) {
+    return _expectId(element, kind, search,
+        isQualified: false, isResolved: false, length: length);
+  }
+
   Element _findElement(String name, [ElementKind kind]) {
     return findChildElement(testUnit.element, name, kind);
   }
@@ -1035,6 +1123,14 @@ class NoMatchABCDE {}
     }
   }
 
+  Future<Null> _verifyNameReferences(
+      String name, List<ExpectedResult> expectedMatches) async {
+    List<SearchResult> results =
+        await driver.search.unresolvedMemberReferences(name);
+    _assertResults(results, expectedMatches);
+    expect(results, hasLength(expectedMatches.length));
+  }
+
   Future _verifyReferences(
       Element element, List<ExpectedResult> expectedMatches) async {
     List<SearchResult> results = await driver.search.references(element);