Converted Observatory heap-profile element

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

+// 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/allocation_profile.dart';
+import 'package:observatory/src/elements/containers/virtual_collection.dart';
+import 'package:observatory/src/elements/nav/refresh.dart';
+import '../mocks.dart';
+
+main() {
+  AllocationProfileElement.tag.ensureRegistration();
+
+  final rTag = NavRefreshElement.tag.name;
+  final vTag = VirtualCollectionElement.tag.name;
+
+  const vm = const VMMock();
+  const isolate = const IsolateRefMock();
+  final events = new EventRepositoryMock();
+  final notif = new NotificationRepositoryMock();
+  test('instantiation', () {
+    final repo = new AllocationProfileRepositoryMock();
+    final e = new AllocationProfileElement(vm, isolate, events, notif, repo);
+    expect(e, isNotNull, reason: 'element correctly created');
+  });
+  test('elements created', () async {
+    final completer = new Completer<AllocationProfileMock>();
+    final repo = new AllocationProfileRepositoryMock(
+      getter: expectAsync((M.IsolateRef i, bool gc, bool reset) {
+        expect(i, equals(isolate));
+        expect(gc, isFalse);
+        expect(reset, isFalse);
+        return completer.future;
+      }, count: 1));
+    final e = new AllocationProfileElement(vm, isolate, events, notif, repo);
+    document.body.append(e);
+    await e.onRendered.first;
+    expect(e.children.length, isNonZero, reason: 'has elements');
+    expect(e.querySelectorAll(vTag).length, isZero);
+    completer.complete(new AllocationProfileMock());
+    await e.onRendered.first;
+    expect(e.querySelectorAll(vTag).length, equals(1));
+    e.remove();
+    await e.onRendered.first;
+    expect(e.children.length, isZero, reason: 'is empty');
+  });
+  group('reacts', () {
+    test('to refresh', () async {
+      final completer = new Completer<AllocationProfileMock>();
+      int step = 0;
+      final repo = new AllocationProfileRepositoryMock(
+        getter: expectAsync((M.IsolateRef i, bool gc, bool reset) {
+          expect(i, equals(isolate));
+          switch (step) {
+              case 0:
+                expect(gc, isFalse);
+                expect(reset, isFalse);
+                break;
+              case 1:
+                expect(gc, isFalse);
+                expect(reset, isTrue);
+                break;
+              case 2:
+                expect(gc, isTrue);
+                expect(reset, isFalse);
+                break;
+              case 3:
+                expect(gc, isFalse);
+                expect(reset, isFalse);
+                break;
+          }
+          step++;
+          return completer.future;
+        }, count: 4));
+      final e = new AllocationProfileElement(vm, isolate, events, notif, repo);
+      document.body.append(e);
+      await e.onRendered.first;
+      completer.complete(new AllocationProfileMock());
+      await e.onRendered.first;
+      e.querySelectorAll(rTag).forEach((NavRefreshElement e) => e.refresh());
+      e.remove();
+      await e.onRendered.first;
+      expect(e.children.length, isZero, reason: 'is empty');
+    });
+    test('to gc', () async {

[Cutch, 2016/08/17 14:28:44]

what about a test that changes the sort?

[cbernaschina, 2016/08/17 17:01:27]

Done.

+      final events = new EventRepositoryMock();
+      final completer = new Completer<AllocationProfileMock>();
+      int count = 0;
+      final repo = new AllocationProfileRepositoryMock(
+        getter: expectAsync((M.IsolateRef i, bool gc, bool reset) {
+          expect(i, equals(isolate));
+          expect(gc, isFalse);
+          expect(reset, isFalse);
+          count++;
+          return completer.future;
+        }, count: 2));
+      final e = new AllocationProfileElement(vm, isolate, events, notif, repo);
+      document.body.append(e);
+      await e.onRendered.first;
+      completer.complete(new AllocationProfileMock());
+      await e.onRendered.first;
+      e.querySelector('input[type=\'checkbox\']').click();
+      expect(events.onGCEventHasListener, isTrue);
+      events.add(new GCEventMock(isolate: isolate));
+      await e.onRendered.first;
+      expect(count, equals(2));
+      // shouldn't trigger
+      events.add(new GCEventMock(isolate: new IsolateRefMock(id: 'another')));
+      await (() async {} ());
+      e.querySelector('input[type=\'checkbox\']').click();
+      // shouldn't trigger
+      events.add(new GCEventMock(isolate: isolate));
+      await (() async {} ());
+      e.remove();
+      await e.onRendered.first;
+      expect(e.children.length, isZero, reason: 'is empty');
+    });
+  });
+}