lib/wave-jpeg/test/test.cpp

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/*
 * test.cpp
 *
 * Copyright (C) 2009  Thomas A. Vaughan
 * All rights reserved.
 *
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the <organization> nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THOMAS A. VAUGHAN ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THOMAS A. VAUGHAN BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *
 * Test for the wave-jpeg library.
 */

// includes --------------------------------------------------------------------
#include "wave-jpeg/wave-jpeg.h"

#include <iostream>

#include "common/wave_ex.h"
#include "nstream/nstream.h"
#include "perf/perf.h"
#include "util/file.h"



////////////////////////////////////////////////////////////////////////////////
//
//      static helper methods
//
////////////////////////////////////////////////////////////////////////////////

static void
doTest
(
IN const char * filename
)
{
        ASSERT(filename, "null");

        // create filesystem manager
        std::string parentDir;
        GetParentDirectory(filename, parentDir);

        smart_ptr<nstream::Manager> mgr =
            nstream::getFilesystemManager(parentDir.c_str());
        ASSERT_THROW(mgr, "failed to create filesystem manager for path: "
            << parentDir);

        // create a JPEG image loader
        smart_ptr<media::ImageLoader> loader = media::createJpegImageLoader();
        ASSERT_THROW(loader, "failed to create JPEG loader");

        // now load JPEG
        // note: do NOT load images this way normally!  Use the
        //      media::loadImage() call instead.
        // we're using the ImageLoader interface only for testing
        const char * name = GetFilename(filename);

        ASSERT_THROW(loader->canLoadImage(mgr, name),
            "JPEG loader says it can't load file: " << filename);

        smart_ptr<nstream::File> file = mgr->getEntry(name);
        ASSERT_THROW(file, "path is not a file: " << filename);

        smart_ptr<nstream::Stream> stream = file->openStream();
        ASSERT_THROW(stream, "could not open stream on file: " << filename);

        media::image_t image;
        loader->load(stream, image);
        ASSERT_THROW(image.isValid(), "Loaded image but it is not valid?");

        image.dump(filename);
}



////////////////////////////////////////////////////////////////////////////////
//
//      entry point
//
////////////////////////////////////////////////////////////////////////////////

int
main
(
IN int argc,
IN const char * argv[]
)
{
        ASSERT(2 == argc, "usage: wave-jpeg-test <jpeg-filename>");
        const char * filename = argv[1];

        int retval = 0;
        try {
                perf::Timer timer("test -- overall timer");
                doTest(filename);

        } catch (std::exception& e) {
                DPRINTF("Exception: %s", e.what());
                retval = 1;
        } catch (...) {
                DPRINTF("Unknown exception!");
                retval = 2;
        }
        perf::dumpTimingSummary(std::cerr);

        return retval;
}