public void Remove_Two_Items_Count_Decreases_By_Two()
{
CustList <int> list = new CustList <int>();
int item = 1;
int item2 = 2;
int item3 = 3;
int item4 = 1;
int expected = 2;
int actual;
list.Add(item);
list.Add(item2);
list.Add(item3);
list.Add(item4);
list.Remove(item4);
list.Remove(item2);
actual = list.Count;
Assert.AreEqual(expected, actual);
}
public void Remove_From_List_Count_Decreases()
{
CustList <int> list = new CustList <int>();
int item = 1;
int expected = 0;
int actual;
list.Add(item);
list.Remove(item);
actual = list.Count;
Assert.AreEqual(expected, actual);
}
public void Remove_From_List_Item_At_Index_One_Shifts_To_Zero()
{
CustList <int> list = new CustList <int>();
int item = 1;
int item2 = 2;
int expected = 2;
int actual;
list.Add(item);
list.Add(item2);
list.Remove(item);
actual = list[0];
Assert.AreEqual(expected, actual);
}
public void Remove_Method_Count_Remains_Same_If_Item_To_Remove_Is_Not_In_List()
{
CustList <int> list = new CustList <int>();
list.Add(1);
list.Add(2);
list.Add(3);
list.Add(4);
list.Add(5);
int expected = 5;
int actual;
list.Remove(6);
actual = list.Count;
Assert.AreEqual(expected, actual);
}
public void Remove_Item_Removes_Only_First_Instance_Of_Item()
{
CustList <int> list = new CustList <int>();
int item = 1;
int item2 = 2;
int item3 = 3;
int item4 = 1;
int expected = 1;
int actual;
list.Add(item);
list.Add(item2);
list.Add(item3);
list.Add(item4);
list.Remove(1);
actual = list[2];
Assert.AreEqual(expected, actual);
}
public void Remove_From_List_Element_At_Index_Four_Shifts_To_Index_Three()
{
CustList <int> list = new CustList <int>();
int item = 1;
int item2 = 2;
int item3 = 3;
int item4 = 1;
int item5 = 4;
int expected = 4;
int actual;
list.Add(item);
list.Add(item2);
list.Add(item3);
list.Add(item4);
list.Add(item5);
list.Remove(item);
actual = list[3];
Assert.AreEqual(expected, actual);
}
