public void TestSerialization()
{
_target.AddKeyAsync(_models[0].Key).Wait();
_target.AddKeyAsync(_models[1].Key).Wait();
Assert.IsTrue(_target.IsDirty, "Dirty flag not set.");
_target.FlushAsync().Wait();
Assert.IsFalse(_target.IsDirty, "Dirty flag not reset on flush.");
var secondTarget = new KeyCollection <TestModel, int>(_driver,
_GetTestModelByKey);
// are we able to grab things?
Assert.AreEqual(2, secondTarget.Query.Count(), "Key count is incorrect.");
Assert.AreEqual(0, _testAccessCount, "Lazy loader was accessed prematurely.");
var testKey = (from k in secondTarget.Query where k.Key.Equals(_models[1].Key) select k).FirstOrDefault();
Assert.IsNotNull(testKey, "Test key not retrieved.");
Assert.AreEqual(_models[1].Key, testKey.Key, "Key mismatch.");
Assert.AreEqual(0, _testAccessCount, "Lazy loader was accessed prematurely.");
var testModel = testKey.LazyValue.Value;
Assert.AreSame(_models[1], testModel, "Model does not match.");
Assert.AreEqual(1, _testAccessCount, "Lazy loader access count is incorrect.");
// now let's test refresh
secondTarget.AddKeyAsync(_models[2].Key).Wait();
secondTarget.FlushAsync().Wait();
Assert.AreEqual(2, _target.Query.Count(), "Unexpected key count in original collection.");
_target.RefreshAsync().Wait();
Assert.AreEqual(3, _target.Query.Count(), "Refresh failed.");
}