Format all tests.

tests/html/element_add_test.dart

Index: tests/html/element_add_test.dart
diff --git a/tests/html/element_add_test.dart b/tests/html/element_add_test.dart
index 2c2ea01890149b3d52fb73f1b08d71c81d1ab585..b58ad00170a87d1414bede8e32d7407e71163388 100644
--- a/tests/html/element_add_test.dart
+++ b/tests/html/element_add_test.dart
@@ -3,6 +3,7 @@
 // BSD-style license that can be found in the LICENSE file
 
 library ElementAddTest;
+
 import 'package:unittest/unittest.dart';
 import 'package:unittest/html_config.dart';
 import 'util.dart';
@@ -15,10 +16,9 @@ main() {
   var isDivElement = predicate((x) => x is DivElement, 'is a DivElement');
   var isText = predicate((x) => x is Text, 'is a Text');
 
-  void expectNoSuchMethod(void fn()) =>
-    expect(fn, throwsNoSuchMethodError);
+  void expectNoSuchMethod(void fn()) => expect(fn, throwsNoSuchMethodError);
 
-   group('append', () {
+  group('append', () {
     test('htmlelement', () {
       var el = new DivElement();
       el.append(new SpanElement());