Converted Observatory view-footer element

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

Index: runtime/observatory/tests/observatory_ui/view_footer/element_test.dart
diff --git a/runtime/observatory/tests/observatory_ui/view_footer/element_test.dart b/runtime/observatory/tests/observatory_ui/view_footer/element_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..f3ab727b2b5642337b1697f8ba1a7db09c61cf70
--- /dev/null
+++ b/runtime/observatory/tests/observatory_ui/view_footer/element_test.dart
@@ -0,0 +1,24 @@
+// 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/src/elements/view_footer.dart';
+
+main() {
+  ViewFooterElement.tag.ensureRegistration();
+
+  test('instantiation', () {
+    final ViewFooterElement e = new ViewFooterElement();
+    expect(e, isNotNull, reason: 'element correctly created');
+  });
+  test('elements created', () async {
+    final ViewFooterElement e = new ViewFooterElement();
+    document.body.append(e);
+    await e.onRendered.first;
+    expect(e.children.length, isNonZero, reason: 'has elements');
+    e.remove();
+    await e.onRendered.first;
+    expect(e.children.length, isZero, reason: 'is empty');
+  });
+}