Converted Observatory cpu-profile element

runtime/observatory/tests/observatory_ui/sample_buffer_control/element_test.dart

Index: runtime/observatory/tests/observatory_ui/sample_buffer_control/element_test.dart
diff --git a/runtime/observatory/tests/observatory_ui/sample_buffer_control/element_test.dart b/runtime/observatory/tests/observatory_ui/sample_buffer_control/element_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..aa82df1a8c7c75a8a127759b9561fb4bc0953fc5
--- /dev/null
+++ b/runtime/observatory/tests/observatory_ui/sample_buffer_control/element_test.dart
@@ -0,0 +1,172 @@
+// Copyright (c) 2016, 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 'dart:html';
+import 'dart:async';
+import 'package:unittest/unittest.dart';
+import 'package:observatory/models.dart' as M;
+import 'package:observatory/src/elements/sample_buffer_control.dart';
+import '../mocks.dart';
+
+main() {
+  SampleBufferControlElement.tag.ensureRegistration();
+
+  group('instantiation', () {
+    SampleProfileLoadingProgressMock progress;
+    StreamController<SampleProfileLoadingProgressEventMock> events;
+    setUp(() {
+      progress = new SampleProfileLoadingProgressMock();
+      events = new StreamController<SampleProfileLoadingProgressEventMock>();
+    });
+    test('no additional parameters', () {
+      final e = new SampleBufferControlElement(progress, events.stream);
+      expect(e, isNotNull, reason: 'element correctly created');
+      expect(e.progress, equals(progress));
+      expect(e.selectedTag, equals(M.SampleProfileTag.none));
+      expect(e.showTag, isTrue);
+    });
+    test('selected tag', () {
+      const tag = M.SampleProfileTag.userOnly;
+      final e = new SampleBufferControlElement(progress, events.stream,
+          selectedTag: tag);
+      expect(e, isNotNull, reason: 'element correctly created');
+      expect(e.progress, equals(progress));
+      expect(e.selectedTag, equals(tag));
+      expect(e.showTag, isTrue);
+    });
+    test('show tag (true)', () {
+      final e = new SampleBufferControlElement(progress, events.stream,
+          showTag: true);
+      expect(e, isNotNull, reason: 'element correctly created');
+      expect(e.progress, equals(progress));
+      expect(e.selectedTag, equals(M.SampleProfileTag.none));
+      expect(e.showTag, isTrue);
+    });
+    test('show tag (false)', () {
+      final e = new SampleBufferControlElement(progress, events.stream,
+          showTag: false);
+      expect(e, isNotNull, reason: 'element correctly created');
+      expect(e.progress, equals(progress));
+      expect(e.selectedTag, equals(M.SampleProfileTag.none));
+      expect(e.showTag, isFalse);
+    });
+  });
+  group('elements', () {
+    SampleProfileLoadingProgressMock progress;
+    StreamController<SampleProfileLoadingProgressEventMock> events;
+    setUp(() {
+      progress = new SampleProfileLoadingProgressMock();
+      events = new StreamController<SampleProfileLoadingProgressEventMock>();
+    });
+    test('created after attachment', () async {
+      final e = new SampleBufferControlElement(progress, events.stream);
+      document.body.append(e);
+      await e.onRendered.first;
+      expect(e.children.length, isNonZero, reason: 'has elements');
+      e.remove();
+      await e.onRendered.first;
+      expect(e.children.length, isZero,
+        reason: 'is empty');
+    });
+    test('listen for status changes', () async {
+      final e = new SampleBufferControlElement(progress, events.stream);
+      expect(events.hasListener, isFalse);
+      document.body.append(e);
+      await e.onRendered.first;
+      expect(events.hasListener, isTrue);
+      events.add(new SampleProfileLoadingProgressEventMock(progress: progress));
+      events.close();
+      await e.onRendered.first;
+      e.remove();
+      await e.onRendered.first;
+    });
+    test('follow updates changes', () async {
+      final e = new SampleBufferControlElement(progress, events.stream);
+      document.body.append(e);
+      await e.onRendered.first;
+      expect(e.querySelector('select'), isNull);
+      events.add(new SampleProfileLoadingProgressEventMock(
+        progress: new SampleProfileLoadingProgressMock(
+          status: M.SampleProfileLoadingStatus.fetching
+      )));
+      await e.onRendered.first;
+      expect(e.querySelector('select'), isNull);
+      events.add(new SampleProfileLoadingProgressEventMock(
+        progress: new SampleProfileLoadingProgressMock(
+          status: M.SampleProfileLoadingStatus.loading
+      )));
+      await e.onRendered.first;
+      expect(e.querySelector('select'), isNull);
+      events.add(new SampleProfileLoadingProgressEventMock(
+        progress: new SampleProfileLoadingProgressMock(
+          status: M.SampleProfileLoadingStatus.loaded,
+          profile: new SampleProfileMock()
+      )));
+      events.close();
+      await e.onRendered.first;
+      expect(e.querySelector('select'), isNotNull);
+      e.remove();
+      await e.onRendered.first;
+    });
+    test('follow updates changes (no tag)', () async {
+      final e = new SampleBufferControlElement(progress, events.stream,
+        showTag: false);
+      document.body.append(e);
+      await e.onRendered.first;
+      expect(e.querySelector('select'), isNull);
+      events.add(new SampleProfileLoadingProgressEventMock(
+        progress: new SampleProfileLoadingProgressMock(
+          status: M.SampleProfileLoadingStatus.fetching
+      )));
+      await e.onRendered.first;
+      expect(e.querySelector('select'), isNull);
+      events.add(new SampleProfileLoadingProgressEventMock(
+        progress: new SampleProfileLoadingProgressMock(
+          status: M.SampleProfileLoadingStatus.loading
+      )));
+      await e.onRendered.first;
+      expect(e.querySelector('select'), isNull);
+      events.add(new SampleProfileLoadingProgressEventMock(
+        progress: new SampleProfileLoadingProgressMock(
+          status: M.SampleProfileLoadingStatus.loaded,
+          profile: new SampleProfileMock()
+      )));
+      await e.onRendered.first;
+      expect(e.querySelector('select'), isNull);
+      e.remove();
+      await e.onRendered.first;
+    });
+  });
+  group('events', () {
+    SampleProfileLoadingProgressMock progress;
+    StreamController<SampleProfileLoadingProgressEventMock> events;
+    setUp(() {
+      progress = new SampleProfileLoadingProgressMock();
+      events = new StreamController<SampleProfileLoadingProgressEventMock>();
+    });
+    test('onModeChange', () async {
+      final e = new SampleBufferControlElement(progress, events.stream);
+      document.body.append(e);
+      await e.onRendered.first;
+      events.add(new SampleProfileLoadingProgressEventMock(
+        progress: new SampleProfileLoadingProgressMock(
+          status: M.SampleProfileLoadingStatus.loaded,
+          profile: new SampleProfileMock()
+      )));
+      await e.onRendered.first;
+      expect(e.selectedTag, equals(M.SampleProfileTag.none));
+      e.onTagChange.listen(expectAsync((_) {
+        expect(e.selectedTag, equals(M.SampleProfileTag.userOnly));
+      }, count: 1));
+      final select = (e.querySelector('.tag-select') as SelectElement);
+      select.selectedIndex = select.options.indexOf(
+          (select.options.toSet()
+            ..removeAll(select.selectedOptions)).toList().first
+        );
+      select.dispatchEvent(new Event("change"));
+      e.remove();
+      await e.onRendered.first;
+    });
+  });
+}