torc/common/TestHelpers.cpp

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// Torc - Copyright 2011 University of Southern California.  All Rights Reserved.
// $HeadURL: https://svn.east.isi.edu/torc/trunk/src/torc/common/TestHelpers.cpp $
// $Id: TestHelpers.cpp 386 2011-02-24 16:32:20Z nsteiner $

// This program is free software: you can redistribute it and/or modify it under the terms of the 
// GNU General Public License as published by the Free Software Foundation, either version 3 of the 
// License, or (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See 
// the GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License along with this program.  If 
// not, see <http://www.gnu.org/licenses/>.

/// \file
/// \brief Source for Boost.Test helper functions.

#include "torc/common/TestHelpers.hpp"
#include <fstream>

namespace torc {
namespace common {

bool readFileIntoString(const boost::filesystem::path& inPath, std::string& outString) {
    // open the file and point to the end of it
    std::ifstream input(inPath.string().c_str(), std::ios::in | std::ios::binary | std::ios::ate);
    if(input.is_open()) {
        // resize the string according to the file length
        std::ifstream::pos_type size = input.tellg();
        outString.resize(size);
        // rewind to the beginning and read the entire file directly into the string
        input.seekg(0, std::ios::beg);
        input.read(const_cast<char*>(outString.data()), size);
        // close and return success
        input.close();
        return true;
    } else {
        return false;
    }
}

bool fileContentsAreEqual(const boost::filesystem::path& inA, const boost::filesystem::path& inB) {
    std::string a, b;
    if(!readFileIntoString(inA, a)) return false;
    if(!readFileIntoString(inB, b)) return false;
    return a == b;
}

} // namespace common
} // namespace torc

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