Further code review changes for issue 8341027.

client/tests/client/html/DocumentFragmentTests.dart

Index: client/tests/client/html/DocumentFragmentTests.dart
diff --git a/client/tests/client/html/DocumentFragmentTests.dart b/client/tests/client/html/DocumentFragmentTests.dart
index 4a58eb9c2bef5df9a1dcbc2bab5d57073ee60c7c..bf80bc853aa87183496d836e3847914d8f355c6b 100644
--- a/client/tests/client/html/DocumentFragmentTests.dart
+++ b/client/tests/client/html/DocumentFragmentTests.dart
@@ -301,16 +301,30 @@ testDocumentFragment() {
       assertUnsupported(() => style.removeProperty('color'));
       assertUnsupported(() => style.setProperty('color', 'blue'));
     });
+
+    test('is equal to itself', () {
+      var fragment = new DocumentFragment();
+      Expect.equals(fragment.style, fragment.style);
+    });
   });
 
-  test('boundingClientRect has default values', () {
-    var rect = new DocumentFragment().getBoundingClientRect();
-    Expect.equals(0, rect.bottom);
-    Expect.equals(0, rect.top);
-    Expect.equals(0, rect.left);
-    Expect.equals(0, rect.right);
-    Expect.equals(0, rect.height);
-    Expect.equals(0, rect.width);
+  group('boundingClientRect', () {
+    test('has default values', () {
+      var rect = new DocumentFragment().getBoundingClientRect();
+      Expect.equals(0, rect.bottom);
+      Expect.equals(0, rect.top);
+      Expect.equals(0, rect.left);
+      Expect.equals(0, rect.right);
+      Expect.equals(0, rect.height);
+      Expect.equals(0, rect.width);
+    });
+
+    test('boundingClientRect is equal to itself', () {
+      var fragment = new DocumentFragment();
+      Expect.equals(
+          fragment.getBoundingClientRect(),
+          fragment.getBoundingClientRect());
+    });
   });
 
   // TODO(nweiz): re-enable when const is better supported in dartc and/or frog