Converted Observatory source-link & script-ref elements

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:unittest/unittest.dart';
+import 'package:observatory/mocks.dart';
+import 'package:observatory/models.dart' as M;
+import 'package:observatory/src/elements/script_ref.dart';
+
+main() {
+  ScriptRefElement.tag.ensureRegistration();
+
+  final M.IsolateRef isolate = const IsolateRefMock(id: 'isolate-id');
+  final M.ScriptRef ref = const ScriptRefMock(id: 'script-id',
+                                  uri: 'package/filename.dart');
+  group('instantiation', () {
+    test('no position', () {
+      final ScriptRefElement 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 ScriptRefElement 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('filename.dart'), isTrue,
+      reason: 'no message in the component');
+    e.remove();
+    await e.onRendered.first;
+    expect(e.children.length, isZero,
+      reason: 'is empty');
+  });
+}