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/* $Id: leb128_test.c 1591 2006-07-13 03:25:38Z peter $
*
* Copyright (C) 2005 Peter Johnson
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``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 THE AUTHOR OR OTHER CONTRIBUTORS 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.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <string.h>
#endif
#include <stdio.h>
#include "libyasm/intnum.c"
typedef struct Test_Entry {
/* signedness (0=unsigned, 1=signed) */
int sign;
/* whether input value should be negated */
int negate;
/* input value (as hex string) */
const char *input;
/* correct size returned from both size_leb128 and get_leb128 */
unsigned long outsize;
/* correct return data from get_leb128 */
const unsigned char *result;
} Test_Entry;
static Test_Entry tests[] = {
/* Unsigned values */
{0, 0, "0", 1, (const unsigned char *)"\x00"},
{0, 0, "2", 1, (const unsigned char *)"\x02"},
{0, 0, "7F", 1, (const unsigned char *)"\x7F"},
{0, 0, "80", 2, (const unsigned char *)"\x80\x01"},
{0, 0, "81", 2, (const unsigned char *)"\x81\x01"},
{0, 0, "82", 2, (const unsigned char *)"\x82\x01"},
{0, 0, "3239", 2, (const unsigned char *)"\xB9\x64"},
/* Signed zero value */
{1, 0, "0", 1, (const unsigned char *)"\x00"},
/* Signed positive values */
{1, 0, "2", 1, (const unsigned char *)"\x02"},
{1, 0, "7F", 2, (const unsigned char *)"\xFF\x00"},
{1, 0, "80", 2, (const unsigned char *)"\x80\x01"},
{1, 0, "81", 2, (const unsigned char *)"\x81\x01"},
/* Signed negative values */
{1, 1, "2", 1, (const unsigned char *)"\x7E"},
{1, 1, "7F", 2, (const unsigned char *)"\x81\x7F"},
{1, 1, "80", 2, (const unsigned char *)"\x80\x7F"},
{1, 1, "81", 2, (const unsigned char *)"\xFF\x7E"},
};
static char failed[1000];
static char failmsg[100];
static int
run_output_test(Test_Entry *test)
{
char *valstr = yasm__xstrdup(test->input);
yasm_intnum *intn = yasm_intnum_create_hex(valstr, 0);
unsigned long size, i;
unsigned char out[100];
int bad;
yasm_xfree(valstr);
if (test->negate)
yasm_intnum_calc(intn, YASM_EXPR_NEG, NULL, 0);
size = yasm_intnum_size_leb128(intn, test->sign);
if (size != test->outsize) {
yasm_intnum_destroy(intn);
sprintf(failmsg, "%ssigned %s%s size() bad size: expected %lu, got %lu!",
test->sign?"":"un", test->negate?"-":"", test->input,
test->outsize, size);
return 1;
}
for (i=0; i<sizeof(out); i++)
out[i] = 0xFF;
size = yasm_intnum_get_leb128(intn, out, test->sign);
if (size != test->outsize) {
yasm_intnum_destroy(intn);
sprintf(failmsg, "%ssigned %s%s get() bad size: expected %lu, got %lu!",
test->sign?"":"un", test->negate?"-":"", test->input,
test->outsize, size);
return 1;
}
bad = 0;
for (i=0; i<test->outsize && !bad; i++) {
if (out[i] != test->result[i])
bad = 1;
}
if (bad) {
yasm_intnum_destroy(intn);
sprintf(failmsg, "%ssigned %s%s get() bad output!",
test->sign?"":"un", test->negate?"-":"", test->input);
return 1;
}
yasm_intnum_destroy(intn);
return 0;
}
static int
run_input_test(Test_Entry *test)
{
char *valstr = yasm__xstrdup(test->input);
yasm_intnum *intn = yasm_intnum_create_hex(valstr, 0);
yasm_intnum *testn;
unsigned long size;
yasm_xfree(valstr);
if (test->negate)
yasm_intnum_calc(intn, YASM_EXPR_NEG, NULL, 0);
testn = yasm_intnum_create_leb128(test->result, test->sign, &size, 0);
if (size != test->outsize) {
yasm_intnum_destroy(testn);
yasm_intnum_destroy(intn);
sprintf(failmsg, "%ssigned %s%s create() bad size: expected %lu, got %lu!",
test->sign?"":"un", test->negate?"-":"", test->input,
test->outsize, size);
return 1;
}
yasm_intnum_calc(intn, YASM_EXPR_EQ, testn, 0);
if (!yasm_intnum_is_pos1(intn)) {
yasm_intnum_destroy(testn);
yasm_intnum_destroy(intn);
sprintf(failmsg, "%ssigned %s%s create() bad output!",
test->sign?"":"un", test->negate?"-":"", test->input);
return 1;
}
yasm_intnum_destroy(testn);
yasm_intnum_destroy(intn);
return 0;
}
int
main(void)
{
int nf = 0;
int numtests = sizeof(tests)/sizeof(Test_Entry);
int i;
if (BitVector_Boot() != ErrCode_Ok)
return EXIT_FAILURE;
yasm_intnum_initialize();
failed[0] = '\0';
printf("Test leb128_test: ");
for (i=0; i<numtests; i++) {
int fail;
fail = run_output_test(&tests[i]);
printf("%c", fail>0 ? 'F':'.');
fflush(stdout);
if (fail)
sprintf(failed, "%s ** F: %s\n", failed, failmsg);
nf += fail;
fail = run_input_test(&tests[i]);
printf("%c", fail>0 ? 'F':'.');
fflush(stdout);
if (fail)
sprintf(failed, "%s ** F: %s\n", failed, failmsg);
nf += fail;
}
yasm_intnum_cleanup();
printf(" +%d-%d/%d %d%%\n%s",
numtests*2-nf, nf, numtests*2, 100*(numtests*2-nf)/(numtests*2),
failed);
return (nf == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
}
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