How to compare files with Boost.Test?

Question

I've two files that I need to compare. I would use something like this

BOOST_REQUIRE_EQUAL(filename1, filename2);

Answer 1

You can use BOOST_CHECK_EQUAL_COLLECTIONS to compare file contents.

Code sample:

#define BOOST_TEST_MAIN
#include <boost/test/unit_test.hpp>

#include <fstream>
#include <iterator>

BOOST_AUTO_TEST_CASE( test )
{
    std::ifstream ifs1("data1.txt");
    std::ifstream ifs2("data2.txt");

    std::istream_iterator<char> b1(ifs1), e1;
    std::istream_iterator<char> b2(ifs2), e2;

    BOOST_CHECK_EQUAL_COLLECTIONS(b1, e1, b2, e2);
}

Answer 2

Files? Read both and compare contents.