public void RemoveMoreElementsThanCollectionHave()
{
//Arrange
IntDataBase db = new IntDataBase(new List <int>()
{
1, 2
});
//Act
db.Remove();
db.Remove();
//Assert
Assert.Throws <InvalidOperationException>(() => db.Remove());
}
public void RemoveManyElements()
{
//Arrange
IntDataBase db = new IntDataBase(new List <int>()
{
1, 2, 3, 4
});
//Act
db.Remove();
db.Remove();
db.Remove();
//Assert
CollectionAssert.AreEqual(new int[] { 1 }, db.Elements);
}