public void RotateListElements_ShouldReturnListRotatedToLeft_WhenPassedNegativeRotationNum()
{
// arrange
var original = new List <int>()
{
1, 2, 3
};
int numRotations = -1;
var expected = new List <int>()
{
2, 3, 1
};
var original5 = new List <int>()
{
1, 2, 3, 4, 5
};
int numRotations5 = -3;
var expected5 = new List <int>()
{
4, 5, 1, 2, 3
};
var x = new RotateArray();
// act
var actual = x.RotateListElements(original, numRotations);
var actual5 = x.RotateListElements(original5, numRotations5);
// assert
Assert.Equal(expected, actual);
Assert.Equal(expected5, actual5);
}
public void RotateListElements_ShouldReturnListRotatedOnce_WhenPassedListAndASingleRotation()
{
// arrange
var original = new List <int>()
{
1, 2, 3
};
int numRotations = 1;
var expected = new List <int>()
{
3, 1, 2
};
var original5 = new List <int>()
{
1, 2, 3, 4, 5
};
int numRotations5 = 3;
var expected5 = new List <int> {
3, 4, 5, 1, 2
};
var x = new RotateArray();
// act
var actual = x.RotateListElements(original, numRotations);
var actual5 = x.RotateListElements(original5, numRotations5);
// assert
Assert.Equal(expected, actual);
Assert.Equal(expected5, actual5);
}
public void RotateListElements_WhenPassedIntListAndNegNumLargerThanListCount_ShouldReturnListRotated()
{
// arrange
var original = new List <int>()
{
1, 2, 3
};
int numRotations = -4;
var expected = new List <int>()
{
2, 3, 1
};
var original6 = new List <int>()
{
1, 2, 3, 4, 5, 6
};
int numRotations6 = -16;
var expected6 = new List <int>()
{
5, 6, 1, 2, 3, 4
};
var x = new RotateArray();
// act
var actual = x.RotateListElements(original, numRotations);
var actual6 = x.RotateListElements(original6, numRotations6);
// assert
Assert.Equal(expected, actual);
Assert.Equal(expected, actual);
}
public void RotateListElements_ShouldRotateList_WhenPassedNumHigherThanCount()
{
// arrange
var original = new List <int> {
1, 2, 3
};
int numRotations = 5;
var expected = new List <int> {
2, 3, 1
};
var original5 = new List <int> {
1, 2, 3, 4, 5
};
int numRotations5 = 13;
var expected5 = new List <int> {
3, 4, 5, 1, 2
};
var x = new RotateArray();
// act
var actual = x.RotateListElements(original, numRotations);
var actual5 = x.RotateListElements(original5, numRotations5);
// assert
Assert.Equal(expected, actual);
Assert.Equal(expected5, actual5);
}
public void RotateListElements_ShouldReturnEmptyList_WhenPassedEmptyList()
{
// arrange
var empty = new List <int>();
int numRotations = 0;
var x = new RotateArray();
// act
var actual = x.RotateListElements(empty, numRotations);
// assert
Assert.Equal(empty, actual);
}
public void RotateListElements_ShouldReturnUnchangedList_WhenPassedListAndZeroRotations()
{
// arrange
var original = new List <int>()
{
1, 2, 3
};
int numRotations = 0;
var expected = original;
var x = new RotateArray();
// act
var actual = x.RotateListElements(original, numRotations);
// assert
Assert.Equal(expected, actual);
}