root/tests/tests.h

INCLUDED FROM

DEFINITIONS

1. lzma_ret_sym
2. coder_loop
3. decoder_loop_ret
4. decoder_loop

///////////////////////////////////////////////////////////////////////////////
//
/// \file       tests.h
/// \brief      Common definitions for test applications
//
//  Author:     Lasse Collin
//
//  This file has been put into the public domain.
//  You can do whatever you want with this file.
//
///////////////////////////////////////////////////////////////////////////////

#ifndef LZMA_TESTS_H
#define LZMA_TESTS_H

#include "sysdefs.h"
#include "tuklib_integer.h"
#include "lzma.h"

#include <stdio.h>

#define memcrap(buf, size) memset(buf, 0xFD, size)

#define expect(test) ((test) ? 0 : (fprintf(stderr, "%s:%d: %s\n", \
        __FILE__, __LINE__, #test), abort(), 0))

#define succeed(test) expect(!(test))

#define fail(test) expect(test)


static inline const char *
lzma_ret_sym(lzma_ret ret)
{
        if ((unsigned int)(ret) > LZMA_PROG_ERROR)
                return "UNKNOWN_ERROR";

        static const char *msgs[] = {
                "LZMA_OK",
                "LZMA_STREAM_END",
                "LZMA_NO_CHECK",
                "LZMA_UNSUPPORTED_CHECK",
                "LZMA_GET_CHECK",
                "LZMA_MEM_ERROR",
                "LZMA_MEMLIMIT_ERROR",
                "LZMA_FORMAT_ERROR",
                "LZMA_OPTIONS_ERROR",
                "LZMA_DATA_ERROR",
                "LZMA_BUF_ERROR",
                "LZMA_PROG_ERROR"
        };

        return msgs[ret];
}


static inline bool
coder_loop(lzma_stream *strm, uint8_t *in, size_t in_size,
                uint8_t *out, size_t out_size,
                lzma_ret expected_ret, lzma_action finishing_action)
{
        size_t in_left = in_size;
        size_t out_left = out_size > 0 ? out_size + 1 : 0;
        lzma_action action = LZMA_RUN;
        lzma_ret ret;

        strm->next_in = NULL;
        strm->avail_in = 0;
        strm->next_out = NULL;
        strm->avail_out = 0;

        while (true) {
                if (in_left > 0) {
                        if (--in_left == 0)
                                action = finishing_action;

                        strm->next_in = in++;
                        strm->avail_in = 1;
                }

                if (out_left > 0) {
                        --out_left;
                        strm->next_out = out++;
                        strm->avail_out = 1;
                }

                ret = lzma_code(strm, action);
                if (ret != LZMA_OK)
                        break;
        }

        bool error = false;

        if (ret != expected_ret)
                error = true;

        if (expected_ret == LZMA_STREAM_END) {
                if (strm->total_in != in_size || strm->total_out != out_size)
                        error = true;
        } else {
                if (strm->total_in != in_size || strm->total_out != out_size)
                        error = true;
        }

        return error;
}


static inline bool
decoder_loop_ret(lzma_stream *strm, uint8_t *in, size_t in_size,
                lzma_ret expected_ret)
{
        return coder_loop(strm, in, in_size, NULL, 0, expected_ret, LZMA_RUN);
}


static inline bool
decoder_loop(lzma_stream *strm, uint8_t *in, size_t in_size)
{
        return coder_loop(strm, in, in_size, NULL, 0,
                        LZMA_STREAM_END, LZMA_RUN);
}

#endif