gtk2/gtk/tests/bitmask.c

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2011-12-23 21:29:34 +00:00
/* GtkRBTree tests.
*
* Copyright (C) 2011, Red Hat, Inc.
* Authors: Benjamin Otte <otte@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <locale.h>
#include "../gtkbitmaskprivate.h"
#include <string.h>
/* how often we run the random tests */
#define N_RUNS 20
/* how many tries we do in our random tests */
#define N_TRIES 100
/* the maximum index we use for bitmask values */
#define MAX_INDEX 1000
/* UTILITIES */
static GtkBitmask *
gtk_bitmask_new_parse (const char *string)
{
guint i, length;
GtkBitmask *mask;
length = strlen (string);
mask = _gtk_bitmask_new ();
for (i = 0; i < length; i++)
{
if (string[i] == '0')
_gtk_bitmask_set (mask, length - i - 1, FALSE);
else if (string[i] == '1')
_gtk_bitmask_set (mask, length - i - 1, TRUE);
else
g_assert_not_reached ();
}
return mask;
}
#define assert_cmpmasks(mask,other) G_STMT_START { \
if (G_UNLIKELY (!_gtk_bitmask_equals (mask, other))) \
{ \
char *mask_string = _gtk_bitmask_to_string (mask); \
char *other_string = _gtk_bitmask_to_string (other); \
char *msg = g_strdup_printf ("%s (%s) != %s (%s)", \
G_STRINGIFY (mask), mask_string, \
G_STRINGIFY (other), other_string); \
g_assertion_message (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, msg); \
g_free (msg); \
g_free (mask_string); \
g_free (other_string); \
} \
}G_STMT_END
static const char *tests[] = {
"0",
"1",
"1000000000000000000000000000000000000000000000000000000000000000",
"10000000000000000000000000000000000000000000000000000000000000000",
"1010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010",
"1000010000100001000010000100001000010000100001000010000100001000010000100001000010000100001000010000100001000010000100001000010000",
"1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111"
};
static GtkBitmask *masks[G_N_ELEMENTS (tests)];
/* TEST */
static void
test_to_string (void)
{
guint i;
char *to_string;
for (i = 0; i < G_N_ELEMENTS (tests); i++)
{
to_string = _gtk_bitmask_to_string (masks[i]);
g_assert_cmpstr (to_string, ==, tests[i]);
g_free (to_string);
}
}
static void
test_is_empty (void)
{
guint i;
for (i = 0; i < G_N_ELEMENTS (tests); i++)
{
g_assert_cmpint (_gtk_bitmask_is_empty (masks[i]), ==, i == 0);
}
}
static void
test_equals (void)
{
guint i, j;
for (i = 0; i < G_N_ELEMENTS (tests); i++)
{
for (j = 0; j < G_N_ELEMENTS (tests); j++)
{
g_assert_cmpint (_gtk_bitmask_equals (masks[i], masks[j]), ==, i == j);
}
}
}
static void
test_set (void)
{
guint i, j;
guint indexes[N_TRIES];
GtkBitmask *copy;
const GtkBitmask *mask;
for (i = 0; i < N_RUNS; i++)
{
mask = masks[g_test_rand_int_range (0, G_N_ELEMENTS (tests))];
copy = _gtk_bitmask_copy (mask);
for (j = 0; j < N_TRIES; j++)
{
indexes[j] = g_test_rand_int_range (0, MAX_INDEX);
_gtk_bitmask_set (copy, indexes[j], g_test_rand_bit ());
}
for (j = 0; j < N_TRIES; j++)
{
_gtk_bitmask_set (copy, indexes[j], _gtk_bitmask_get (mask, indexes[j]));
}
assert_cmpmasks (copy, mask);
_gtk_bitmask_free (copy);
}
}
static void
test_union (void)
{
GtkBitmask *left, *right, *expected;
guint run, try, n_tries;
for (run = 0; run < N_RUNS; run++)
{
left = _gtk_bitmask_new ();
right = _gtk_bitmask_new ();
expected = _gtk_bitmask_new ();
n_tries = g_test_perf () ? N_TRIES : g_test_rand_int_range (0, N_TRIES);
for (try = 0; try < n_tries; try++)
{
guint id = g_test_rand_int_range (0, MAX_INDEX);
if (g_test_rand_bit ())
_gtk_bitmask_set (left, id, TRUE);
else
_gtk_bitmask_set (right, id, TRUE);
_gtk_bitmask_set (expected, id, TRUE);
}
_gtk_bitmask_union (left, right);
_gtk_bitmask_union (right, left);
assert_cmpmasks (left, expected);
assert_cmpmasks (right, expected);
_gtk_bitmask_free (left);
_gtk_bitmask_free (right);
_gtk_bitmask_free (expected);
}
}
static void
test_intersect (void)
{
GtkBitmask *left, *right, *expected;
guint run, try;
gboolean intersects;
for (run = 0; run < N_RUNS; run++)
{
left = _gtk_bitmask_new ();
right = _gtk_bitmask_new ();
expected = _gtk_bitmask_new ();
for (try = 0; try < N_TRIES; try++)
{
guint id = g_test_rand_int_range (0, MAX_INDEX);
gboolean set = g_test_rand_bit ();
if (g_test_rand_bit ())
{
_gtk_bitmask_set (left, id, set);
_gtk_bitmask_set (expected, id, set ? _gtk_bitmask_get (right, id) : 0);
}
else
{
_gtk_bitmask_set (right, id, set);
_gtk_bitmask_set (expected, id, set ? _gtk_bitmask_get (left, id) : 0);
}
}
intersects = _gtk_bitmask_intersects (left, right);
g_assert_cmpint (intersects, ==, _gtk_bitmask_intersects (right, left));
g_assert_cmpint (intersects, !=, _gtk_bitmask_is_empty (expected));
_gtk_bitmask_intersect (left, right);
_gtk_bitmask_intersect (right, left);
assert_cmpmasks (left, expected);
assert_cmpmasks (right, expected);
_gtk_bitmask_free (left);
_gtk_bitmask_free (right);
_gtk_bitmask_free (expected);
}
}
#define SWAP(_a, _b) G_STMT_START{ \
guint _tmp = _a; \
_a = _b; \
_b = _tmp; \
}G_STMT_END
static void
test_invert_range (void)
{
GtkBitmask *left, *right, *intersection, *expected;
guint run;
guint left_start, left_end, right_start, right_end, start, end;
for (run = 0; run < N_RUNS; run++)
{
left = _gtk_bitmask_new ();
right = _gtk_bitmask_new ();
expected = _gtk_bitmask_new ();
left_start = g_test_rand_int_range (0, MAX_INDEX);
left_end = g_test_rand_int_range (0, MAX_INDEX);
if (left_start > left_end)
SWAP (left_start, left_end);
right_start = g_test_rand_int_range (0, MAX_INDEX);
right_end = g_test_rand_int_range (0, MAX_INDEX);
if (right_start > right_end)
SWAP (right_start, right_end);
start = MAX (left_start, right_start);
end = MIN (left_end, right_end);
if (left_start != left_end)
_gtk_bitmask_invert_range (left, left_start, left_end);
if (right_start != right_end)
_gtk_bitmask_invert_range (right, right_start, right_end);
if (start < end)
_gtk_bitmask_invert_range (expected, start, end);
intersection = _gtk_bitmask_copy (left);
_gtk_bitmask_intersect (intersection, right);
assert_cmpmasks (intersection, expected);
if (start < end)
_gtk_bitmask_invert_range (expected, start, end);
g_assert_cmpint (_gtk_bitmask_is_empty (expected), ==, TRUE);
_gtk_bitmask_free (left);
_gtk_bitmask_free (right);
_gtk_bitmask_free (intersection);
_gtk_bitmask_free (expected);
}
}
/* SETUP & RUNNING */
static void
create_masks (void)
{
guint i;
for (i = 0; i < G_N_ELEMENTS (tests); i++)
masks[i] = gtk_bitmask_new_parse (tests[i]);
}
static void
free_masks (void)
{
guint i;
for (i = 0; i < G_N_ELEMENTS (tests); i++)
{
_gtk_bitmask_free (masks[i]);
masks[i] = NULL;
}
}
int
main (int argc, char *argv[])
{
int result;
g_test_init (&argc, &argv, NULL);
setlocale (LC_ALL, "C");
g_test_bug_base ("http://bugzilla.gnome.org/show_bug.cgi?id=%s");
create_masks ();
g_test_add_func ("/bitmask/to_string", test_to_string);
g_test_add_func ("/bitmask/is_empty", test_is_empty);
g_test_add_func ("/bitmask/equals", test_equals);
g_test_add_func ("/bitmask/set", test_set);
g_test_add_func ("/bitmask/union", test_union);
g_test_add_func ("/bitmask/intersect", test_intersect);
g_test_add_func ("/bitmask/invert_range", test_invert_range);
result = g_test_run ();
free_masks ();
return result;
}