public void HeapSortWithRandomIntegerArray()
{
var sortedIndices = new []{ 5, 2, 8, 6, 0, 4, 1, 7, 3, 9 };
IlutpElementSorter.SortIntegersDecreasing(sortedIndices);
for (var i = 0; i < sortedIndices.Length; i++)
{
Assert.AreEqual(sortedIndices.Length - 1 - i, sortedIndices[i], "#01-" + i);
}
}
public void HeapSortWithSpecialConstructedIntegerArray()
{
var sortedIndices = new[] { 0, 0, 0, 0, 0, 1, 0, 0, 0, 0 };
IlutpElementSorter.SortIntegersDecreasing(sortedIndices);
for (var i = 0; i < sortedIndices.Length; i++)
{
if (i == 0)
{
Assert.AreEqual(1, sortedIndices[i], "#01-" + i);
break;
}
}
sortedIndices = new[] { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
IlutpElementSorter.SortIntegersDecreasing(sortedIndices);
for (var i = 0; i < sortedIndices.Length; i++)
{
if (i == 0)
{
Assert.AreEqual(1, sortedIndices[i], "#02-" + i);
break;
}
}
sortedIndices = new[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 };
IlutpElementSorter.SortIntegersDecreasing(sortedIndices);
for (var i = 0; i < sortedIndices.Length; i++)
{
if (i == 0)
{
Assert.AreEqual(1, sortedIndices[i], "#03-" + i);
break;
}
}
sortedIndices = new[] { 1, 1, 1, 0, 1, 1, 1, 1, 1, 1 };
IlutpElementSorter.SortIntegersDecreasing(sortedIndices);
for (var i = 0; i < sortedIndices.Length; i++)
{
if (i == 9)
{
Assert.AreEqual(0, sortedIndices[i], "#04-" + i);
break;
}
}
}
public void HeapSortWithDuplicateEntries()
{
var sortedIndices = new[] { 1, 1, 1, 1, 2, 2, 2, 2, 3, 4 };
IlutpElementSorter.SortIntegersDecreasing(sortedIndices);
for (var i = 0; i < sortedIndices.Length; i++)
{
if (i == 0)
{
Assert.AreEqual(4, sortedIndices[i], "#01-" + i);
}
else
{
if (i == 1)
{
Assert.AreEqual(3, sortedIndices[i], "#01-" + i);
}
else
{
if (i < 6)
{
if (sortedIndices[i] != 2)
{
Assert.Fail("#01-" + i);
}
}
else
{
if (sortedIndices[i] != 1)
{
Assert.Fail("#01-" + i);
}
}
}
}
}
}
