public void If_I_Try_To_Swap_Only_Two_Letters()
{
IList<char> letters = new List<char> { 'z', 'h', };
letters.Swap<char>(0, 1);
Assert.IsTrue(letters.IndexOf('z') == 1);
Assert.IsTrue(letters.IndexOf('h') == 0);
}
public void SwappingTwoItems()
{
var list = new List<string>();
list.Add("Hans");
list.Add("Sepp");
list.Swap(0, 1);
Assert.AreEqual("Sepp", list[0]);
Assert.AreEqual("Hans", list[1]);
}
public void TestSwap()
{
var obj1 = new object();
var obj2 = new object();
var list = new List<object>
{
new object(),
new object(),
obj1,
new object(),
new object(),
new object(),
obj2,
new object()
};
list.Swap(2, 6);
Assert.AreSame(obj1, list[6]);
Assert.AreSame(obj2, list[2]);
}
public void If_I_Try_To_Swap_Second_Position_Less_Than_Zero()
{
IList<char> letters = new List<char> { 'z', 'b' };
letters.Swap<char>(1, -3);
}
public void If_I_Try_To_Swap_Positions_Nonexistent()
{
IList<char> letters = new List<char> { 'z', };
letters.Swap<char>(0, 1);
}
public void If_I_Try_To_Swap_One_Element_Nonexistent()
{
IList<char> letters = new List<char> { 'z', 'a', 'b', 'w', 'm', };
letters.Swap<char>('g', 'a');
}
public void If_I_Try_To_Swap_First_Position_Less_Than_Zero()
{
IList<char> letters = new List<char> { 'z', };
letters.Swap<char>(-1, 3);
}
public void If_I_Try_To_Swap_Two_Items_By_Position_Having_Other_Letters_In_Collection()
{
IList<char> letters = new List<char> { 'a', 'z', 'h', 'd', };
letters.Swap<char>(1, 3);
Assert.IsTrue(letters.IndexOf('z') == 3);
Assert.IsTrue(letters.IndexOf('d') == 1);
}
public void If_I_Try_To_Swap_Two_Elements_Having_Other_Letters_In_Collection()
{
IList<char> letters = new List<char> { 'z', 'a', 'b', 'w', 'm', };
letters.Swap<char>('a', 'm');
//
Assert.IsTrue(letters.IndexOf('a') == 4);
Assert.IsTrue(letters.IndexOf('m') == 1);
}
public void If_I_Try_To_Swap_The_Same_Position()
{
IList<char> letters = new List<char> { 'a', 'z', 'h', 'd', };
letters.Swap<char>(1, 1);
Assert.IsTrue(letters.IndexOf('z') == 1);
Assert.IsTrue(letters.IndexOf('d') == 3);
}
public void SwapWithYPositionTooLow()
{
var items = new List<string> { "a", "b", "c", "d", "e" };
items.Swap(2, -4);
}
public void SwapWithXPositionTooHigh()
{
var items = new List<string> { "a", "b", "c", "d", "e" };
items.Swap(15, 4);
}
public void SwapWithEqualPositions()
{
var items = new List<string> { "a", "b", "c", "d", "e" };
items.Swap(2, 2);
CollectionAssert.AreEqual(
new List<string> { "a", "b", "c", "d", "e" }, items);
}
