public void SetCollectionAdapter_ExceptWith_RemovesContainedElements()
{
List <int> backingList = new List <int>()
{
12, 13, 14
};
SetCollectionAdapter <int> adapter = new SetCollectionAdapter <int>(backingList);
adapter.ExceptWith(new int[] { 7, 13, 28, 12, 13, 13, 12 });
Assert.AreEqual(1, backingList.Count);
Assert.AreEqual(14, backingList[0]);
}
public void SetCollectionAdapter_ExceptWith_Null_ThrowsArgumentNull()
{
List <int> backingList = new List <int>()
{
12, 13, 14
};
SetCollectionAdapter <int> adapter = new SetCollectionAdapter <int>(backingList);
Assert.ThrowsException <ArgumentNullException>(
#pragma warning disable CS8625 // Cannot convert null literal to non-nullable reference type.
() => adapter.ExceptWith(null));
#pragma warning restore CS8625 // Cannot convert null literal to non-nullable reference type.
}
public void SetCollectionAdapter_ExceptWith_IsReadOnly_ThrowsNotSupported()
{
ICollection <int> backingList = new ReadOnlyCollection <int>(new List <int>()
{
12, 13, 14
});
SetCollectionAdapter <int> adapter = new SetCollectionAdapter <int>(backingList);
NotSupportedException e = Assert.ThrowsException <NotSupportedException>(
() => adapter.ExceptWith(new int[] { 7, 12 }));
Assert.AreEqual(
ExceptionMessages.CollectionIsReadOnly,
e.Message);
}