Converted Observatory source-link & script-ref elements

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:unittest/unittest.dart';
+import 'package:observatory/mocks.dart';
+import 'package:observatory/models.dart' as M;
+import 'package:observatory/src/elements/source_link.dart';
+
+main() {
+  SourceLinkElement.tag.ensureRegistration();
+
+  final M.IsolateRef isolate = const IsolateRefMock(id: 'isolate-id');
+  final M.Script script = new  ScriptMock(id: 'script-id',
+                                  uri: 'package/filename.dart',
+                                  tokenToLine: (int token) => 1,
+                                  tokenToCol: (int token) => 2);
+  final M.SourceLocation location = new SourceLocationMock(script: script,
+                                  tokenPos: 0, endTokenPos: 1);
+  M.ScriptRepository repository;
+  setUp(() {
+    repository = new ScriptRepositoryMock({ 'script-id': script });
+  });
+  test('instantiation', () {
+    final SourceLinkElement 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 {
+    final SourceLinkElement e = new SourceLinkElement(isolate, location,
+                                                               repository);
+    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('filename.dart'), isTrue,
+      reason: 'no message in the component');
+    e.remove();
+    await e.onRendered.first;
+    expect(e.children.length, isZero,
+      reason: 'is empty');
+  });
+}