Convert keys in dataSet to camelCase instead of dasherized.

tests/html/htmlelement_test.dart

Index: tests/html/htmlelement_test.dart
diff --git a/tests/html/htmlelement_test.dart b/tests/html/htmlelement_test.dart
index df2704dfb53fc468ac685bedc0b610fb6d8bb45d..764f5f176d1d2e4b568e3e17c5ab8b04cb4998a9 100644
--- a/tests/html/htmlelement_test.dart
+++ b/tests/html/htmlelement_test.dart
@@ -87,5 +87,24 @@ main() {
     div.dataset.clear();
     expect(div.dataset.length, 0);
     expect(div.dataset.isEmpty, isTrue);
+
+    Element otherDiv = new Element.html(
+        '<div id="dataDiv" data-my-message="Hello World"></div>',
+        treeSanitizer: new UnhelpfulSanitizer());
+    expect(otherDiv.dataset.containsKey('myMessage'), isTrue);
+
+    Element anotherDiv = new Element.html(
+        '<div id="dataDiv" data-eggs="bacon"></div>',
+        treeSanitizer: new UnhelpfulSanitizer());
+    expect(anotherDiv.dataset.containsKey('eggs'), isTrue);
   });
 }
+
+/**
+ * A sanitizer that doesn't actually do anything! Allows us to add custom
+ * attributes (and anything else).
+ */
+class UnhelpfulSanitizer implements NodeTreeSanitizer {

[blois, 2013/10/10 21:13:39]

import utils.dart and use NullTreeSanitizer from there.

+  UnhelpfulSanitizer();
+  void sanitizeTree(Node node) {}
+}