public void TestIndexer()
{
BTreeDictionary <int, string> data = new BTreeDictionary <int, string>(Comparer, GetSample());
BTreeDictionary <int, string> copy = new BTreeDictionary <int, string>(Comparer);
copy.AddRange(data);
Assert.AreEqual(copy.Count, data.Count);
foreach (int key in data.Keys)
{
Assert.AreEqual(data[key], copy[key]);
}
}