runtime/observatory/tests/observatory_ui/source_link/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/source_link.dart';
import '../mocks.dart';

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

  const isolate = const IsolateRefMock(id: 'isolate-id');
  const script_id = 'script-id';
  const file = 'filename.dart';
  final script = new ScriptMock(
      id: script_id,
      uri: 'package/$file',
      tokenToLine: (int token) => 1,
      tokenToCol: (int token) => 2);
  final location =
      new SourceLocationMock(script: script, tokenPos: 0, endTokenPos: 1);
  final repository = new ScriptRepositoryMock();
  test('instantiation', () {
    final e = new SourceLinkElement(isolate, location, repository);
    expect(e, isNotNull, reason: 'element correctly created');
    expect(e.isolate, equals(isolate));
    expect(e.location, equals(location));
  });
  test('elements created after attachment', () async {
    bool rendered = false;
    final repository = new ScriptRepositoryMock(
        getter: expectAsync2((isolate, id) async {
      expect(rendered, isFalse);
      expect(id, equals(script_id));
      return script;
    }, count: 1));
    final e = new SourceLinkElement(isolate, location, repository);
    document.body.append(e);
    await e.onRendered.first;
    rendered = true;
    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');
  });
}