public IEnumerable <TElement> JoinValuesTest <TKey, TElement>(IEnumerable <Dictionary <TKey, TElement> > source) { IEnumerable <TElement> result = EnumerableExtension.JoinValues <TKey, TElement>(source); return(result); // TODO: add assertions to method EnumerableExtensionTest.JoinValuesTest(IEnumerable`1<Dictionary`2<!!0,!!1>>) }