mirror of
https://gitlab.gnome.org/GNOME/gtk.git
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483 lines
14 KiB
C
483 lines
14 KiB
C
/* Bitmask tests.
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*
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* Copyright (C) 2011, Red Hat, Inc.
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* Authors: Benjamin Otte <otte@gnome.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <locale.h>
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#include "../../gtk/gtkbitmaskprivate.h"
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#include <string.h>
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/* how often we run the random tests */
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#define N_RUNS 20
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/* how many tries we do in our random tests */
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#define N_TRIES 100
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/* the maximum index we use for bitmask values */
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#define MAX_INDEX 1000
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/* UTILITIES */
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static GtkBitmask *
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gtk_bitmask_new_parse (const char *string)
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{
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guint i, length;
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GtkBitmask *mask;
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length = strlen (string);
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mask = _gtk_bitmask_new ();
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for (i = 0; i < length; i++)
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{
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if (string[i] == '0')
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mask = _gtk_bitmask_set (mask, length - i - 1, FALSE);
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else if (string[i] == '1')
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mask = _gtk_bitmask_set (mask, length - i - 1, TRUE);
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else
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g_assert_not_reached ();
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}
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return mask;
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}
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#define assert_cmpmasks(mask,other) G_STMT_START { \
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if (G_UNLIKELY (!_gtk_bitmask_equals (mask, other))) \
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{ \
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char *mask_string = _gtk_bitmask_to_string (mask); \
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char *other_string = _gtk_bitmask_to_string (other); \
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char *msg = g_strdup_printf ("%s (%s) != %s (%s)", \
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G_STRINGIFY (mask), mask_string, \
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G_STRINGIFY (other), other_string); \
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g_assertion_message (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, msg); \
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g_free (msg); \
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g_free (mask_string); \
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g_free (other_string); \
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} \
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}G_STMT_END
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static const char *tests[] = {
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"0",
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"1",
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"1000000000000000000000000000000",
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"10000000000000000000000000000000",
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"100000000000000000000000000000000000000000000000000000000000000",
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"1000000000000000000000000000000000000000000000000000000000000000",
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"10000000000000000000000000000000000000000000000000000000000000000",
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"1010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010",
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"1000010000100001000010000100001000010000100001000010000100001000010000100001000010000100001000010000100001000010000100001000010000",
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"1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111"
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};
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static GtkBitmask *masks[G_N_ELEMENTS (tests)];
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/* TEST */
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static void
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test_to_string (void)
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{
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guint i;
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char *to_string;
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for (i = 0; i < G_N_ELEMENTS (tests); i++)
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{
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to_string = _gtk_bitmask_to_string (masks[i]);
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g_assert_cmpstr (to_string, ==, tests[i]);
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g_free (to_string);
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}
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}
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static void
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test_is_empty (void)
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{
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guint i;
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for (i = 0; i < G_N_ELEMENTS (tests); i++)
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{
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g_assert_cmpint (_gtk_bitmask_is_empty (masks[i]), ==, i == 0);
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}
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}
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static void
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test_equals (void)
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{
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guint i, j;
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for (i = 0; i < G_N_ELEMENTS (tests); i++)
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{
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for (j = 0; j < G_N_ELEMENTS (tests); j++)
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{
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g_assert_cmpint (_gtk_bitmask_equals (masks[i], masks[j]), ==, i == j);
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}
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}
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}
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static void
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test_set (void)
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{
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guint i, j;
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guint indexes[N_TRIES];
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GtkBitmask *copy;
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const GtkBitmask *mask;
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for (i = 0; i < N_RUNS; i++)
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{
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mask = masks[g_test_rand_int_range (0, G_N_ELEMENTS (tests))];
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copy = _gtk_bitmask_copy (mask);
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for (j = 0; j < N_TRIES; j++)
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{
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indexes[j] = g_test_rand_int_range (0, MAX_INDEX);
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copy = _gtk_bitmask_set (copy, indexes[j], g_test_rand_bit ());
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}
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for (j = 0; j < N_TRIES; j++)
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{
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copy = _gtk_bitmask_set (copy, indexes[j], _gtk_bitmask_get (mask, indexes[j]));
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}
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assert_cmpmasks (copy, mask);
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_gtk_bitmask_free (copy);
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}
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}
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static void
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test_union (void)
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{
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GtkBitmask *left, *right, *expected;
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guint run, try, n_tries;
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for (run = 0; run < N_RUNS; run++)
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{
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left = _gtk_bitmask_new ();
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right = _gtk_bitmask_new ();
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expected = _gtk_bitmask_new ();
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n_tries = g_test_perf () ? N_TRIES : g_test_rand_int_range (0, N_TRIES);
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for (try = 0; try < n_tries; try++)
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{
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guint id = g_test_rand_int_range (0, MAX_INDEX);
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if (g_test_rand_bit ())
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left = _gtk_bitmask_set (left, id, TRUE);
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else
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right = _gtk_bitmask_set (right, id, TRUE);
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expected = _gtk_bitmask_set (expected, id, TRUE);
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}
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left = _gtk_bitmask_union (left, right);
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right = _gtk_bitmask_union (right, left);
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assert_cmpmasks (left, expected);
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assert_cmpmasks (right, expected);
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_gtk_bitmask_free (left);
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_gtk_bitmask_free (right);
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_gtk_bitmask_free (expected);
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}
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}
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static void
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test_intersect (void)
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{
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GtkBitmask *left, *right, *expected;
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guint run, try;
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gboolean intersects;
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for (run = 0; run < N_RUNS; run++)
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{
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left = _gtk_bitmask_new ();
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right = _gtk_bitmask_new ();
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expected = _gtk_bitmask_new ();
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for (try = 0; try < N_TRIES; try++)
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{
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guint id = g_test_rand_int_range (0, MAX_INDEX);
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gboolean set = g_test_rand_bit ();
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if (g_test_rand_bit ())
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{
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left = _gtk_bitmask_set (left, id, set);
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expected = _gtk_bitmask_set (expected, id, set ? _gtk_bitmask_get (right, id) : 0);
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}
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else
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{
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right = _gtk_bitmask_set (right, id, set);
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expected = _gtk_bitmask_set (expected, id, set ? _gtk_bitmask_get (left, id) : 0);
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}
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}
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intersects = _gtk_bitmask_intersects (left, right);
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g_assert_cmpint (intersects, ==, _gtk_bitmask_intersects (right, left));
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g_assert_cmpint (intersects, !=, _gtk_bitmask_is_empty (expected));
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left = _gtk_bitmask_intersect (left, right);
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right = _gtk_bitmask_intersect (right, left);
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assert_cmpmasks (left, expected);
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assert_cmpmasks (right, expected);
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_gtk_bitmask_free (left);
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_gtk_bitmask_free (right);
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_gtk_bitmask_free (expected);
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}
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}
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static void
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test_intersect_hardcoded (void)
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{
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GtkBitmask *left, *right, *intersection, *expected;
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const char *left_str, *right_str;
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guint left_len, right_len;
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guint i, l, r;
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for (l = 0; l < G_N_ELEMENTS (tests); l++)
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{
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for (r = 0; r < G_N_ELEMENTS (tests); r++)
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{
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left = masks[l];
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right = masks[r];
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left_str = tests[l];
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right_str = tests[r];
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left_len = strlen (tests[l]);
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right_len = strlen (tests[r]);
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expected = _gtk_bitmask_new ();
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if (left_len > right_len)
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left_str += left_len - right_len;
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if (right_len > left_len)
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right_str += right_len - left_len;
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i = MIN (right_len, left_len);
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while (i--)
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{
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expected = _gtk_bitmask_set (expected, i, left_str[0] == '1' && right_str[0] == '1');
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right_str++;
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left_str++;
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}
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intersection = _gtk_bitmask_intersect (_gtk_bitmask_copy (left), right);
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assert_cmpmasks (intersection, expected);
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g_assert_cmpint (_gtk_bitmask_is_empty (expected), ==, !_gtk_bitmask_intersects (left, right));
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_gtk_bitmask_free (intersection);
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_gtk_bitmask_free (expected);
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}
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}
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}
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static void
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test_subtract_hardcoded (void)
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{
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GtkBitmask *left, *right, *subtracted, *expected;
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const char *left_str, *right_str;
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guint left_len, right_len;
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guint i, l, r;
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for (l = 0; l < G_N_ELEMENTS (tests); l++)
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{
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for (r = 0; r < G_N_ELEMENTS (tests); r++)
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{
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left = masks[l];
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right = masks[r];
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left_str = tests[l];
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right_str = tests[r];
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left_len = strlen (tests[l]);
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right_len = strlen (tests[r]);
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expected = _gtk_bitmask_new ();
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for (i = MIN (right_len, left_len); i < left_len; i++)
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{
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expected = _gtk_bitmask_set (expected, i, left_str[left_len - i - 1] == '1');
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}
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if (left_len > right_len)
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left_str += left_len - right_len;
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if (right_len > left_len)
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right_str += right_len - left_len;
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i = MIN (right_len, left_len);
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while (i--)
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{
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expected = _gtk_bitmask_set (expected, i, left_str[0] == '1' && right_str[0] == '0');
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right_str++;
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left_str++;
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}
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{
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char *sl = _gtk_bitmask_to_string (left);
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char *sr = _gtk_bitmask_to_string (right);
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g_test_message ("%s - %s\n", sl, sr);
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g_free (sl);
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g_free (sr);
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}
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subtracted = _gtk_bitmask_subtract (_gtk_bitmask_copy (left), right);
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assert_cmpmasks (subtracted, expected);
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_gtk_bitmask_free (subtracted);
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_gtk_bitmask_free (expected);
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}
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}
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}
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#define SWAP(_a, _b) G_STMT_START{ \
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guint _tmp = _a; \
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_a = _b; \
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_b = _tmp; \
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}G_STMT_END
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static void
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test_invert_range_hardcoded (void)
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{
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guint t, l, r, i;
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gsize r_len, l_len, ref_len;
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char *ref_str;
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GtkBitmask *bitmask, *ref;
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for (t = 0; t < G_N_ELEMENTS (tests); t++)
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{
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for (l = 0; l < G_N_ELEMENTS (tests); l++)
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{
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l_len = strlen (tests[l]);
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for (r = 0; r < G_N_ELEMENTS (tests); r++)
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{
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r_len = strlen (tests[r]);
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if (r_len < l_len)
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continue;
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ref_len = MAX (r_len, strlen (tests[t]));
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ref_str = g_strdup_printf ("%*s", (int) ref_len, tests[t]);
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for (i = 0; i < ref_len && ref_str[i] == ' '; i++)
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ref_str[i] = '0';
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for (i = l_len - 1; i < r_len; i++)
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{
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ref_str[ref_len-i-1] = ref_str[ref_len-i-1] == '0' ? '1' : '0';
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}
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ref = gtk_bitmask_new_parse (ref_str);
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g_free (ref_str);
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bitmask = gtk_bitmask_new_parse (tests[t]);
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bitmask = _gtk_bitmask_invert_range (bitmask, l_len - 1, r_len);
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assert_cmpmasks (bitmask, ref);
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_gtk_bitmask_free (bitmask);
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_gtk_bitmask_free (ref);
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}
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}
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}
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}
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static void
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test_invert_range (void)
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{
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GtkBitmask *left, *right, *intersection, *expected;
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guint run;
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guint left_start, left_end, right_start, right_end, start, end;
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for (run = 0; run < N_RUNS; run++)
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{
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left = _gtk_bitmask_new ();
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right = _gtk_bitmask_new ();
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expected = _gtk_bitmask_new ();
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left_start = g_test_rand_int_range (0, MAX_INDEX);
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left_end = g_test_rand_int_range (0, MAX_INDEX);
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if (left_start > left_end)
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SWAP (left_start, left_end);
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right_start = g_test_rand_int_range (0, MAX_INDEX);
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right_end = g_test_rand_int_range (0, MAX_INDEX);
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if (right_start > right_end)
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SWAP (right_start, right_end);
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start = MAX (left_start, right_start);
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end = MIN (left_end, right_end);
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if (left_start != left_end)
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left = _gtk_bitmask_invert_range (left, left_start, left_end);
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if (right_start != right_end)
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right = _gtk_bitmask_invert_range (right, right_start, right_end);
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if (start < end)
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expected = _gtk_bitmask_invert_range (expected, start, end);
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intersection = _gtk_bitmask_copy (left);
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intersection = _gtk_bitmask_intersect (intersection, right);
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assert_cmpmasks (intersection, expected);
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if (start < end)
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expected = _gtk_bitmask_invert_range (expected, start, end);
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g_assert_cmpint (_gtk_bitmask_is_empty (expected), ==, TRUE);
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_gtk_bitmask_free (left);
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_gtk_bitmask_free (right);
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_gtk_bitmask_free (intersection);
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_gtk_bitmask_free (expected);
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}
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}
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/* SETUP & RUNNING */
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static void
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create_masks (void)
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{
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guint i;
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for (i = 0; i < G_N_ELEMENTS (tests); i++)
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masks[i] = gtk_bitmask_new_parse (tests[i]);
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}
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static void
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free_masks (void)
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{
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guint i;
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for (i = 0; i < G_N_ELEMENTS (tests); i++)
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{
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_gtk_bitmask_free (masks[i]);
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masks[i] = NULL;
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}
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}
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int
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main (int argc, char *argv[])
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{
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int result;
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(g_test_init) (&argc, &argv, NULL);
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setlocale (LC_ALL, "C");
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create_masks ();
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g_test_add_func ("/bitmask/to_string", test_to_string);
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g_test_add_func ("/bitmask/is_empty", test_is_empty);
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g_test_add_func ("/bitmask/equals", test_equals);
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g_test_add_func ("/bitmask/set", test_set);
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g_test_add_func ("/bitmask/union", test_union);
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g_test_add_func ("/bitmask/intersect", test_intersect);
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g_test_add_func ("/bitmask/intersect_hardcoded", test_intersect_hardcoded);
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g_test_add_func ("/bitmask/subtract_hardcoded", test_subtract_hardcoded);
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g_test_add_func ("/bitmask/invert_range", test_invert_range);
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g_test_add_func ("/bitmask/invert_range_hardcoded", test_invert_range_hardcoded);
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result = g_test_run ();
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free_masks ();
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return result;
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}
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