/*

 * 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/>.

 *

 * Copyright (C) 2011 Jon Nordby <jononor@gmail.com>

 */

/* Test XML load->save roundtrips  */

#include <glib.h>

#include <glib/gprintf.h>

#include <gegl.h>

#include "common.c"

typedef struct {

    gchar *expected_result;

    gchar *xml_output;

    GeglNode *graph;

} TestRoundtripFixture;

static void

test_xml_roundtrip_setup(TestRoundtripFixture *fixture, const void *data)

{

    const gchar *file_path = (const gchar *)data;

    gchar *file_contents = NULL;

    gchar *xml_output = NULL;

    gchar *cwd = g_get_current_dir();

    gboolean success = g_file_get_contents(file_path, &file_contents, NULL, NULL);

    GeglNode *graph = NULL;

    g_assert(success);

    g_assert(file_contents);

    graph = gegl_node_new_from_xml(file_contents, "");

    g_assert(graph);

    xml_output = gegl_node_to_xml(graph, "");

    g_assert(xml_output);

    fixture->expected_result = file_contents;

    fixture->xml_output = xml_output;

    g_free(cwd);

}

/*

 *

 * Create a graph from XML, save this graph to XML and compare the results */

static void

test_xml_roundtrip(TestRoundtripFixture *fixture, const void *data)

{

    assert_equivalent_xml(fixture->xml_output, fixture->expected_result);

}

static void

test_xml_roundtrip_teardown(TestRoundtripFixture *fixture, const void *data)

{

    g_free(fixture->xml_output);

    g_free(fixture->expected_result);

    g_free((gpointer)data);

}

static gboolean

add_tests_for_xml_files_in_directory(const gchar *path)

{

    GError *error = NULL;

    GDir *dir = g_dir_open(path, 0, &error);

    const gchar *filename = NULL;

    if (!dir) {

        g_fprintf(stderr, "Unable to open directory: %s\n", error->message);

        g_error_free(error);

        return FALSE;

    }

    while ( (filename = g_dir_read_name(dir)) ) {

        gchar *test_path;

        const gchar *file_path = g_build_filename(path, filename, NULL);

        test_path = g_strdup_printf("/xml/roundtrip/%s/%s", path, filename);;

        if (!g_str_has_suffix(filename, ".xml")) {

            continue;

        }

        /* Need to pass in the path name */

        g_test_add (test_path, TestRoundtripFixture, file_path,

                    test_xml_roundtrip_setup,

                    test_xml_roundtrip,

                    test_xml_roundtrip_teardown);

        g_free(test_path);

        /* file_path freed by teardown function*/

    }

    g_dir_close(dir);

    return TRUE;

}

int

main (int argc, char *argv[])

{

    int result = -1;

    gchar *datadir;

    gegl_init(&argc, &argv);

    g_test_init(&argc, &argv, NULL);

    datadir = g_build_filename (g_getenv ("ABS_TOP_SRCDIR"), "tests/xml/data", NULL);

    if (!add_tests_for_xml_files_in_directory(datadir)) {

        result = -1;

    }

    else {

        result = g_test_run();

    }

    gegl_exit();

    return result;

}