Tests for analysis.navigation.

pkg/analysis_server/test/integration/analysis/update_options_test.dart

+// Copyright (c) 2017, 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.
+
+import 'package:analysis_server/plugin/protocol/protocol.dart';
+import 'package:test/test.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
+
+import '../integration_tests.dart';
+
+main() {
+  defineReflectiveSuite(() {
+    defineReflectiveTests(UpdateOptionsTest);
+  });
+}
+
+@reflectiveTest
+class UpdateOptionsTest extends AbstractAnalysisServerIntegrationTest {
+  // We fail after the first analysis.updateOptions - we should not see a hint
+  // for the unused import (#28800).
+  @failingTest
+  test_options() async {
+    String pathname = sourcePath('test.dart');
+    writeFile(
+        pathname,
+        '''
+import 'dart:async'; // unused
+
+class Foo {
+  void bar() {}
+}
+''');
+    standardAnalysisSetup();
+
+    await sendAnalysisUpdateOptions(new AnalysisOptions()..generateHints = false);
+    await sendAnalysisReanalyze();
+    await analysisFinished;
+    expect(getErrors(pathname), isEmpty);
+
+    await sendAnalysisUpdateOptions(new AnalysisOptions()..generateHints = true);
+    await sendAnalysisReanalyze();
+    await analysisFinished;
+    expect(getErrors(pathname), hasLength(1));
+  }
+
+  @override
+  bool get enableNewAnalysisDriver => true;
+}