public void DiscardEdit_before_begin_edit()
{
MockEntity entity = new MockEntity()
{
IntProperty = 1
};
Should.Throw <ArgumentNullException>(() => entity.DiscardEdit());
}
public void DiscardEdit()
{
bool isEventRaised = false;
int before = 1;
int after = 2;
MockEntity entity = new MockEntity()
{
IntProperty = before
};
entity.Undo += (s, e) => { isEventRaised = true; };
entity.BeginEdit();
entity.IntProperty = after;
entity.DiscardEdit();
Assert.AreEqual(before, entity.IntProperty);
Assert.IsFalse(entity.IsEditing);
Assert.IsTrue(isEventRaised);
}
