Centralized event streams

runtime/observatory/tests/observatory_ui/nav/refresh/element_test.dart

Index: runtime/observatory/tests/observatory_ui/nav/refresh/element_test.dart
diff --git a/runtime/observatory/tests/observatory_ui/nav/refresh/element_test.dart b/runtime/observatory/tests/observatory_ui/nav/refresh/element_test.dart
index 26c3adaaa4c47a779d23dc4abb43eec5fba29ad1..05b3370ddd5d114f2d1f684422176fb50ac965d9 100644
--- a/runtime/observatory/tests/observatory_ui/nav/refresh/element_test.dart
+++ b/runtime/observatory/tests/observatory_ui/nav/refresh/element_test.dart
@@ -8,34 +8,35 @@ import 'package:observatory/src/elements/nav/refresh.dart';
 
 main() {
   NavRefreshElement.tag.ensureRegistration();
+
   group('instantiation', () {
     test('no parameters', () {
-      final NavRefreshElement e = new NavRefreshElement();
+      final e = new NavRefreshElement();
       expect(e, isNotNull, reason: 'element correctly created');
       expect(e.label, isNotNull, reason: 'label is set to default');
       expect(e.disabled, isFalse, reason: 'element correctly created');
     });
     test('label', () {
       final label = 'custom-label';
-      final NavRefreshElement e = new NavRefreshElement(label: label);
+      final e = new NavRefreshElement(label: label);
       expect(e, isNotNull, reason: 'element correctly created');
       expect(e.label, isNotNull, reason: 'label is set');
       expect(e.label, equals(label), reason: 'label is set to value');
     });
     test('not disabled', () {
-      final NavRefreshElement e = new NavRefreshElement(disabled: false);
+      final e = new NavRefreshElement(disabled: false);
       expect(e, isNotNull, reason: 'element correctly created');
       expect(e.disabled, isFalse, reason: 'element correctly created');
     });
     test('disabled', () {
-      final NavRefreshElement e = new NavRefreshElement(disabled: true);
+      final e = new NavRefreshElement(disabled: true);
       expect(e, isNotNull, reason: 'element correctly created');
       expect(e.disabled, isTrue, reason: 'element correctly created');
     });
   });
   group('elements', () {
     test('created after attachment', () async {
-      final NavRefreshElement e = new NavRefreshElement();
+      final e = new NavRefreshElement();
       document.body.append(e);
       await e.onRendered.first;
       expect(e.children.length, isNonZero, reason: 'has elements');
@@ -45,7 +46,7 @@ main() {
     });
     test('contain custom label', () async {
       final label = 'custom-label';
-      final NavRefreshElement e = new NavRefreshElement(label: label);
+      final e = new NavRefreshElement(label: label);
       document.body.append(e);
       await e.onRendered.first;
       expect(e.innerHtml.contains(label), isTrue);
@@ -55,7 +56,7 @@ main() {
     test('react to label change', () async {
       final label1 = 'custom-label-1';
       final label2 = 'custom-label-2';
-      final NavRefreshElement e = new NavRefreshElement(label: label1);
+      final e = new NavRefreshElement(label: label1);
       document.body.append(e);
       await e.onRendered.first;
       expect(e.innerHtml.contains(label1), isTrue);
@@ -68,7 +69,7 @@ main() {
       await e.onRendered.first;
     });
     test('react to disabled change', () async {
-      final NavRefreshElement e = new NavRefreshElement(disabled: false);
+      final e = new NavRefreshElement(disabled: false);
       document.body.append(e);
       await e.onRendered.first;
       expect(e.disabled, isFalse);