public static void Insert_InvalidIndex_ThrowsArgumentOutOfRangeException()
{
var collection = new ModifiableCollection <int>(s_intArray);
Assert.Throws <ArgumentOutOfRangeException>("index", () => collection.Insert(-1, 0));
Assert.Throws <ArgumentOutOfRangeException>("index", () => collection.Insert(s_intArray.Length + 1, 0));
}
public static void Insert_MiddleIndex()
{
const int insertIndex = 3;
const int itemsToInsert = 5;
var collection = new ModifiableCollection <int>(s_intArray);
for (int i = 0; i < itemsToInsert; i++)
{
collection.Insert(insertIndex + i, i);
}
// Verify from the beginning of the collection up to insertIndex
for (int i = 0; i < insertIndex; i++)
{
Assert.Equal(s_intArray[i], collection[i]);
}
// Verify itemsToInsert items starting from insertIndex
for (int i = 0; i < itemsToInsert; i++)
{
Assert.Equal(i, collection[insertIndex + i]);
}
// Verify the rest of the items in the collection
for (int i = insertIndex; i < s_intArray.Length; i++)
{
Assert.Equal(s_intArray[i], collection[itemsToInsert + i]);
}
}
public static void Insert_ZeroIndex()
{
const int itemsToInsert = 5;
var collection = new ModifiableCollection <int>();
for (int i = itemsToInsert - 1; i >= 0; i--)
{
collection.Insert(0, i);
}
for (int i = 0; i < itemsToInsert; i++)
{
Assert.Equal(i, collection[i]);
}
}
public static void Insert_EndIndex()
{
const int itemsToInsert = 5;
var collection = new ModifiableCollection <int>(s_intArray);
for (int i = 0; i < itemsToInsert; i++)
{
collection.Insert(collection.Count, i);
}
for (int i = 0; i < itemsToInsert; i++)
{
Assert.Equal(i, collection[s_intArray.Length + i]);
}
}
