runtime/observatory/tests/observatory_ui/script_ref/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 'package:test/test.dart';
import 'package:observatory/src/elements/script_ref.dart';
import '../mocks.dart';

main() {
  ScriptRefElement.tag.ensureRegistration();

  const isolate = const IsolateRefMock(id: 'isolate-id');
  const file = 'filename.dart';
  const ref = const ScriptRefMock(id: 'script-id', uri: 'package/$file');
  group('instantiation', () {
    test('no position', () {
      final e = new ScriptRefElement(isolate, ref);
      expect(e, isNotNull, reason: 'element correctly created');
      expect(e.isolate, equals(isolate));
      expect(e.script, equals(ref));
    });
  });
  test('elements created after attachment', () async {
    final e = new ScriptRefElement(isolate, ref);
    document.body.append(e);
    await e.onRendered.first;
    expect(e.children.length, isNonZero, reason: 'has elements');
    expect(e.innerHtml.contains(isolate.id), isTrue,
        reason: 'no message in the component');
    expect(e.innerHtml.contains(file), isTrue,
        reason: 'no message in the component');
    e.remove();
    await e.onRendered.first;
    expect(e.children.length, isZero, reason: 'is empty');
  });
}