Test for a single child and an array with one item

Author: koba04

src/isomorphic/children/ReactChildren.js

@@ -32,11 +32,6 @@ var SUBSEPARATOR = ':';
  *
  */
 
-/**
- * TODO: Test that a single child and an array with one item have the same key
- * pattern.
- */
-
 var didWarnAboutMaps = false;
 
 /**

src/isomorphic/children/__tests__/ReactChildren-test.js

@@ -51,7 +51,7 @@ describe('ReactChildren', () => {
       return kid;
     });
 
-    var simpleKid = <span />;
+    var simpleKid = <span key="simple" />;
     var instance = <div>{simpleKid}</div>;
     React.Children.forEach(instance.props.children, callback, context);
     expect(callback).toHaveBeenCalledWith(simpleKid, 0);
@@ -62,7 +62,7 @@ describe('ReactChildren', () => {
       context,
     );
     expect(callback).toHaveBeenCalledWith(simpleKid, 0);
-    expect(mappedChildren[0]).toEqual(<span key=".0" />);
+    expect(mappedChildren[0]).toEqual(<span key=".$simple" />);
   });
 
   it('should treat single child in array as expected', () => {