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/*
Copyright (c) Alexander Zaitsev <zamazan4ik@gmail.com>, 2016
Distributed under the Boost Software License, Version 1.0. (See
accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
See http://www.boost.org/ for latest version.
*/
#include <boost/config.hpp>
#include <boost/algorithm/is_palindrome.hpp>
#define BOOST_TEST_MAIN
#include <boost/test/unit_test.hpp>
#include <algorithm>
#include <iostream>
#include <list>
#include <vector>
namespace ba = boost::algorithm;
template <typename T>
bool funcComparator(const T& v1, const T& v2)
{
return v1 == v2;
}
struct functorComparator
{
template <typename T>
bool operator()(const T& v1, const T& v2) const
{
return v1 == v2;
}
};
void test_is_palindrome()
{
const std::list<int> empty;
const std::vector<char> singleElement(1, 'z');
int oddNonPalindrome[] = {3,2,2};
const int oddPalindrome[] = {1,2,3,2,1};
const int evenPalindrome[] = {1,2,2,1};
int evenNonPalindrome[] = {1,4,8,8};
const char* stringNullPtr = NULL;
// Test a default operator==
BOOST_CHECK ( ba::is_palindrome(empty));
BOOST_CHECK ( ba::is_palindrome(singleElement));
BOOST_CHECK (!ba::is_palindrome(boost::begin(oddNonPalindrome), boost::end(oddNonPalindrome)));
BOOST_CHECK ( ba::is_palindrome(boost::begin(oddPalindrome), boost::end(oddPalindrome)));
BOOST_CHECK ( ba::is_palindrome(boost::begin(evenPalindrome), boost::end(evenPalindrome)));
BOOST_CHECK (!ba::is_palindrome(boost::begin(evenNonPalindrome), boost::end(evenNonPalindrome)));
//Test the custom comparators
BOOST_CHECK ( ba::is_palindrome(empty.begin(), empty.end(), functorComparator()));
BOOST_CHECK (!ba::is_palindrome(boost::begin(oddNonPalindrome), boost::end(oddNonPalindrome), funcComparator<int>));
BOOST_CHECK ( ba::is_palindrome(evenPalindrome, std::equal_to<int>()));
//Test C-strings like cases
BOOST_CHECK ( ba::is_palindrome(stringNullPtr));
BOOST_CHECK ( ba::is_palindrome(""));
BOOST_CHECK ( ba::is_palindrome("a"));
BOOST_CHECK ( ba::is_palindrome("abacaba", std::equal_to<char>()));
BOOST_CHECK ( ba::is_palindrome("abba"));
BOOST_CHECK (!ba::is_palindrome("acab"));
}
BOOST_AUTO_TEST_CASE( test_main )
{
test_is_palindrome ();
}
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