void
test_compress_histo
(void)
{
histo_t *histo = new_histo();
test_assert_critical(histo != NULL);
for (size_t i = 0 ; i < 4096 ; i += 2) {
test_assert(histo_push(&histo, i) == 0);
}
tab_t *tab;
tab = compress_histo(histo);
test_assert_critical(tab != NULL);
test_assert(tab->size == 2048);
for (size_t i = 0 ; i < tab->size ; i++) {
test_assert(tab->val[i] == 2*i);
test_assert(tab->num[i] == 1);
}
free(tab);
redirect_stderr();
set_alloc_failure_rate_to(1.0);
tab = compress_histo(histo);
reset_alloc();
unredirect_stderr();
test_assert(tab == NULL);
test_assert(strcmp(caught_in_stderr(), "") != 0);
free(histo);
return;
}
static void
mkclrmap( /* make our color map */
int nc
)
{
register int i;
if ((samplefac ? neu_init(xmax*ymax) : new_histo(xmax*ymax)) == -1)
goto memerr;
for (i = 0; i < ymax; i++) {
getrow(i);
if (samplefac)
neu_colrs(scanln, xmax);
else
cnt_colrs(scanln, xmax);
}
if (samplefac)
neu_clrtab(nc);
else
new_clrtab(nc);
for (i = 0; i < nc; i++) {
rmap[i] = clrtab[i][RED];
gmap[i] = clrtab[i][GRN];
bmap[i] = clrtab[i][BLU];
}
if (dither && (pixscan = (uby8 *)malloc(xmax)) == NULL)
goto memerr;
return;
memerr:
fprintf(stderr, "%s: out of memory\n", progname);
exit(1);
}
void
test_histo_push
(void)
{
histo_t *histo;
histo = new_histo();
test_assert_critical(histo != NULL);
for (size_t i = 0 ; i < (1 << 16) ; i++) {
test_assert(histo_push(&histo, i) == 0);
}
test_assert(histo->size == (1 << 16));
for (size_t i = 0 ; i < (1 << 16) ; i++) {
test_assert(histo->num[i] == 1);
}
free(histo);
histo = new_histo();
test_assert_critical(histo != NULL);
for (size_t i = (1 << 16) ; i > 0 ; i--) {
test_assert(histo_push(&histo, i-1) == 0);
}
test_assert(histo->size == 2*((1 << 16)-1));
for (size_t i = 0 ; i < (1 << 16) ; i++) {
test_assert(histo->num[i] == 1);
}
free(histo);
histo = new_histo();
test_assert_critical(histo != NULL);
redirect_stderr();
set_alloc_failure_rate_to(1.0);
test_assert(histo_push(&histo, HISTO_INIT_SIZE) == 1);
reset_alloc();
unredirect_stderr();
test_assert(strcmp(caught_in_stderr(), "") != 0);
free(histo);
return;
}
void
test_new_histo
(void)
{
histo_t *histo;
histo = new_histo();
test_assert_critical(histo != NULL);
for (size_t i = 0 ; i < HISTO_INIT_SIZE ; i++) {
test_assert(histo->num[i] == 0);
}
free(histo);
redirect_stderr();
set_alloc_failure_rate_to(1.0);
histo = new_histo();
reset_alloc();
unredirect_stderr();
test_assert(histo == NULL);
test_assert(strcmp(caught_in_stderr(), "") != 0);
return;
}
