datastructures/test/linkedlist.cpp

#include "../sequential/linkedlist.hpp"
#include "testutil.hpp"

bool TestAppending()
{
	unsigned const testSize = 5;

	std::vector<unsigned> truth;
	List::List<unsigned> list;

	truth.resize(testSize);
	for(unsigned i = 0; i < testSize; ++i)
	{
		unsigned const value = Util::GetRandomNumber();
		truth[i] = value;
		list.Append(value);
	}

	for(unsigned i = 0; i < testSize; ++i)
	{
		if(truth[i] != list[i])
		{
			return false;
		}
	}

	return true;
}

bool TestPrepending()
{
	unsigned const testSize = 5;

	std::vector<unsigned> truth;
	List::List<unsigned> list;

	truth.resize(testSize);
	for(unsigned i = testSize; i > 0; --i)
	{
		unsigned const value = Util::GetRandomNumber();
		truth[i - 1] = value;
		list.Prepend(value);
	}

	for(unsigned i = 0; i < testSize; ++i)
	{
		if(truth[i] != list[i])
		{
			return false;
		}
	}

	return true;
}

bool TestPrependAppendMix()
{
	std::vector<unsigned> numbers = { 5, 6, 4, 7, 3, 8, 2, 9, 1, 10 };
	List::List<unsigned> list;

	for(unsigned i = 0; i < numbers.size(); i += 2)
	{
		list.Prepend(numbers[i]);
		list.Append(numbers[i + 1]);
	}

	for(unsigned i = 0; i < list.GetSize(); ++i)
	{
		if(list[i] != i + 1)
		{
			return false;
		}
	}

	return true;
}

bool TestDeletion()
{
	List::List<unsigned> list;

	for(unsigned i = 1; i < 8; ++i)
	{
		list.Append(i);
	}

	for(unsigned i = 0; i < list.GetSize(); ++i)
	{
		list.Delete(i);
	}

	for(unsigned i = 0; i < list.GetSize(); ++i)
	{
		if(list[i] % 2 != 0)
		{
			return false;
		}
	}

	return true;
}

bool TestInsertion()
{
	unsigned const testSize = 11;
	List::List<unsigned> list;

	for(unsigned i = 1; i < testSize; i += 2)
	{
		list.Append(i);
	}

	for(unsigned i = 1; i < testSize - 2; i += 2)
	{
		list.Insert(i + 1, i);
	}

	for(unsigned i = 1; i <= list.GetSize(); ++i)
	{
		if(list[i - 1] != i)
		{
			return false;
		}
	}

	return true;
}

int main()
{
	Test::Execute(TestAppending, "Appending test");
	Test::Execute(TestPrepending, "Prepending test");
	Test::Execute(TestPrependAppendMix, "Prepend append mix test");
	Test::Execute(TestDeletion, "Deletion test");
	Test::Execute(TestInsertion, "Insertion test");
	return 0;
}