public void Test_GetItem_WhenIndexIsZero()
{
var actualItem = 1;
var actualRepr = "[1]";
var array = new DynArray <int>();
array.Append(actualItem);
var item = array.GetItem(0);
Assert.AreEqual(actualItem, item);
Assert.AreEqual(actualRepr, array.ToString());
}
public void Test_Append_WhenCapacityIsNotChanged()
{
var newCount = 16;
var array = new DynArray <int>();
for (var i = 0; i < newCount; i++)
{
array.Append(i + 1);
}
var arrayRepr = "[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]";
Assert.AreEqual(16, array.capacity);
Assert.AreEqual(newCount, array.count);
Assert.AreEqual(arrayRepr, array.ToString());
}
public void Test_Insert_WhenCapacityIsChanged()
{
var newCount = 18;
var array = new DynArray <int>();
for (var i = 0; i < newCount; i++)
{
array.Insert(i + 1, i);
}
var arrayRepr = "[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18]";
Assert.AreEqual(16 * 2, array.capacity);
Assert.AreEqual(newCount, array.count);
Assert.AreEqual(arrayRepr, array.ToString());
}
public void Test_Insert_WhenCapacityIsNotChanged()
{
var newCount = 16;
var array = new DynArray <int>();
for (var i = 0; i < newCount; i++)
{
array.Insert(i + 1, 0);
}
var arrayRepr = "[16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1]";
Assert.AreEqual(16, array.capacity);
Assert.AreEqual(newCount, array.count);
Assert.AreEqual(arrayRepr, array.ToString());
}
public void Test_MakeArray_WhenNewCapacityIsHigher()
{
var newCapacity = 100;
var newCount = 18;
var array = new DynArray <int>();
for (var i = 0; i < newCount; i++)
{
array.Append(i + 1);
}
var arrayRepr = "[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18]";
array.MakeArray(newCapacity);
Assert.AreEqual(newCapacity, array.capacity);
Assert.AreEqual(newCount, array.count);
Assert.AreEqual(arrayRepr, array.ToString());
}
public void Test_Remove_WhenCapacityIsNotChangedWhenSizeIsHalfOfCapacity()
{
var newCount = 18;
var array = new DynArray <int>();
for (var i = 0; i < newCount; i++)
{
array.Insert(i + 1, i);
}
array.Remove(17);
array.Remove(5);
var arrayRepr = "[1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17]";
Assert.AreEqual(16 * 2, array.capacity);
Assert.AreEqual(newCount - 2, array.count);
Assert.AreEqual(arrayRepr, array.ToString());
}
