mirror of
https://github.com/ostreedev/ostree.git
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116 lines
3.8 KiB
C
116 lines
3.8 KiB
C
/*
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* Copyright (C) 2015 Red Hat, Inc.
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*
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* SPDX-License-Identifier: LGPL-2.0+
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "libglnx.h"
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#include "ostree-lzma-compressor.h"
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#include "ostree-lzma-decompressor.h"
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#include <gio/gio.h>
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#include <gio/gmemoryoutputstream.h>
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#include <gio/gunixoutputstream.h>
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#include <glib.h>
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#include <stdlib.h>
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#include <string.h>
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static void
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helper_test_compress_decompress (const guint8 *data, gssize data_size)
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{
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g_autoptr (GError) error = NULL;
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g_autoptr (GOutputStream) out_compress = g_memory_output_stream_new_resizable ();
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g_autoptr (GOutputStream) out_decompress = NULL;
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g_autoptr (GInputStream) in_compress
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= g_memory_input_stream_new_from_data (data, data_size, NULL);
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g_autoptr (GInputStream) in_decompress = NULL;
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{
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gssize n_bytes_written;
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g_autoptr (GInputStream) convin = NULL;
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g_autoptr (GConverter) compressor = (GConverter *)_ostree_lzma_compressor_new (NULL);
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convin = g_converter_input_stream_new ((GInputStream *)in_compress, compressor);
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n_bytes_written = g_output_stream_splice (
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out_compress, convin,
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G_OUTPUT_STREAM_SPLICE_CLOSE_TARGET | G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE, NULL, &error);
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g_assert_cmpint (n_bytes_written, >, 0);
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g_assert_no_error (error);
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}
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out_decompress = g_memory_output_stream_new_resizable ();
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{
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gssize n_bytes_written;
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g_autoptr (GInputStream) convin = NULL;
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g_autoptr (GConverter) decompressor = (GConverter *)_ostree_lzma_decompressor_new ();
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g_autoptr (GBytes) bytes
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= g_memory_output_stream_steal_as_bytes (G_MEMORY_OUTPUT_STREAM (out_compress));
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in_decompress = g_memory_input_stream_new_from_bytes (bytes);
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convin = g_converter_input_stream_new ((GInputStream *)in_decompress, decompressor);
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n_bytes_written = g_output_stream_splice (
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out_decompress, convin,
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G_OUTPUT_STREAM_SPLICE_CLOSE_TARGET | G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE, NULL, &error);
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g_assert_cmpint (n_bytes_written, >, 0);
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g_assert_no_error (error);
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}
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g_assert_cmpint (g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (out_decompress)),
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==, data_size);
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{
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gpointer new_data = g_memory_output_stream_get_data (G_MEMORY_OUTPUT_STREAM (out_decompress));
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g_assert_cmpint (memcmp (new_data, data, data_size), ==, 0);
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}
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}
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static void
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test_lzma_random (void)
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{
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gssize i;
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guint8 buffer[4096];
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g_autoptr (GRand) r = g_rand_new ();
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for (i = 0; i < sizeof (buffer); i++)
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buffer[i] = g_rand_int (r);
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for (i = 2; i < (sizeof (buffer) - 1); i *= 2)
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{
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helper_test_compress_decompress (buffer, i - 1);
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helper_test_compress_decompress (buffer, i);
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helper_test_compress_decompress (buffer, i + 1);
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}
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}
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static void
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test_lzma_big_buffer (void)
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{
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const guint32 buffer_size = 1 << 21;
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g_autofree guint8 *buffer = g_new (guint8, buffer_size);
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memset (buffer, (int)'a', buffer_size);
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helper_test_compress_decompress (buffer, buffer_size);
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}
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int
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main (int argc, char **argv)
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{
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g_test_init (&argc, &argv, NULL);
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g_test_add_func ("/lzma/random-buffer", test_lzma_random);
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g_test_add_func ("/lzma/big-buffer", test_lzma_big_buffer);
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return g_test_run ();
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}
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