public void Add_does_not_cause_concurrent_modifications()
{
var list = new CopyOnWriteList <int> {
1, 2, 3
};
var e = list.GetEnumerator();
// Adding an item should not cause concurrent modifications
list.Add(4);
Assert.DoesNotThrow(() => e.MoveNext());
}
public void Add_does_not_enumerate_added_items()
{
var list = new CopyOnWriteList <int> {
1, 2, 3
};
var e = list.GetEnumerator();
Assert.True(e.MoveNext());
Assert.Equal(1, e.Current);
// Adding an item should not cause concurrent modifications
list.Add(4);
Assert.DoesNotThrow(() => e.MoveNext());
Assert.Equal(2, e.Current);
Assert.True(e.MoveNext());
Assert.Equal(3, e.Current);
Assert.False(e.MoveNext());
}