public void Replace_ReplacedAndEventRaised()
{
TestDataManager dm = new TestDataManager();
TestDataType data1 = new TestDataType {
Id = 1U
}, data2 = new TestDataType {
Id = 2U
};
dm.Add(data1);
TestDataObserver obs = new TestDataObserver();
using IDisposable unsubscriber = dm.Subscribe(obs);
Assert.AreEqual(dm.Get(1U), data1);
dm.ReplaceData(new HashSet <TestDataType> {
data2
});
Assert.AreEqual(dm.Get(2U), data2);
Assert.AreEqual(0, obs.CompleteCount);
Assert.AreEqual(0, obs.Errors.Count);
Assert.AreEqual(1, obs.Next.Count);
DataChanged <TestDataType> change = obs.Next.Dequeue();
Assert.IsTrue(change.Action == DataChangedAction.Replace &&
change.OldItems?.FirstOrDefault() == data1 &&
change.NewItems?.FirstOrDefault() == data2);
}
public void Add_AddedOnceAndEventRaised()
{
TestDataManager dm = new TestDataManager();
TestDataType data = new TestDataType();
TestDataObserver obs = new TestDataObserver();
using IDisposable unsubscriber = dm.Subscribe(obs);
dm.Add(data);
Assert.ThrowsException <ArgumentException>(() => dm.Add(data));
Assert.AreEqual(0, obs.CompleteCount);
Assert.AreEqual(0, obs.Errors.Count);
Assert.AreEqual(1, obs.Next.Count);
DataChanged <TestDataType> change = obs.Next.Dequeue();
Assert.IsTrue(change.Action == DataChangedAction.Add && change.NewItems?.FirstOrDefault() == data);
}
public void Reset_ResetAndEventRaised()
{
TestDataManager dm = new TestDataManager();
TestDataType data = new TestDataType();
dm.Add(data);
TestDataObserver obs = new TestDataObserver();
using IDisposable unsubscriber = dm.Subscribe(obs);
dm.Reset();
Assert.IsFalse(dm.GetAll().Any());
Assert.AreEqual(0, obs.CompleteCount);
Assert.AreEqual(0, obs.Errors.Count);
Assert.AreEqual(1, obs.Next.Count);
DataChanged <TestDataType> change = obs.Next.Dequeue();
Assert.IsTrue(change.Action == DataChangedAction.Reset && change.OldItems?.FirstOrDefault() == data);
}