tests.h

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//
//
//  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 (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