xenocara/xserver/test/list.c
2019-07-27 07:57:06 +00:00

389 lines
9.8 KiB
C

/**
* Copyright © 2011 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <X11/Xlib.h>
#include <list.h>
#include <string.h>
#include <assert.h>
#include <stdlib.h>
#include "tests-common.h"
struct parent {
int a;
struct xorg_list children;
int b;
};
struct child {
int foo;
int bar;
struct xorg_list node;
};
static void
test_xorg_list_init(void)
{
struct parent parent, tmp;
memset(&parent, 0, sizeof(parent));
parent.a = 0xa5a5a5;
parent.b = ~0xa5a5a5;
tmp = parent;
xorg_list_init(&parent.children);
/* test we haven't touched anything else. */
assert(parent.a == tmp.a);
assert(parent.b == tmp.b);
assert(xorg_list_is_empty(&parent.children));
}
static void
test_xorg_list_add(void)
{
struct parent parent = { 0 };
struct child child[3];
struct child *c;
xorg_list_init(&parent.children);
xorg_list_add(&child[0].node, &parent.children);
assert(!xorg_list_is_empty(&parent.children));
c = xorg_list_first_entry(&parent.children, struct child, node);
assert(memcmp(c, &child[0], sizeof(struct child)) == 0);
/* note: xorg_list_add prepends */
xorg_list_add(&child[1].node, &parent.children);
c = xorg_list_first_entry(&parent.children, struct child, node);
assert(memcmp(c, &child[1], sizeof(struct child)) == 0);
xorg_list_add(&child[2].node, &parent.children);
c = xorg_list_first_entry(&parent.children, struct child, node);
assert(memcmp(c, &child[2], sizeof(struct child)) == 0);
};
static void
test_xorg_list_append(void)
{
struct parent parent = { 0 };
struct child child[3];
struct child *c;
int i;
xorg_list_init(&parent.children);
xorg_list_append(&child[0].node, &parent.children);
assert(!xorg_list_is_empty(&parent.children));
c = xorg_list_first_entry(&parent.children, struct child, node);
assert(memcmp(c, &child[0], sizeof(struct child)) == 0);
c = xorg_list_last_entry(&parent.children, struct child, node);
assert(memcmp(c, &child[0], sizeof(struct child)) == 0);
xorg_list_append(&child[1].node, &parent.children);
c = xorg_list_first_entry(&parent.children, struct child, node);
assert(memcmp(c, &child[0], sizeof(struct child)) == 0);
c = xorg_list_last_entry(&parent.children, struct child, node);
assert(memcmp(c, &child[1], sizeof(struct child)) == 0);
xorg_list_append(&child[2].node, &parent.children);
c = xorg_list_first_entry(&parent.children, struct child, node);
assert(memcmp(c, &child[0], sizeof(struct child)) == 0);
c = xorg_list_last_entry(&parent.children, struct child, node);
assert(memcmp(c, &child[2], sizeof(struct child)) == 0);
i = 0;
xorg_list_for_each_entry(c, &parent.children, node) {
assert(memcmp(c, &child[i++], sizeof(struct child)) == 0);
}
};
static void
test_xorg_list_del(void)
{
struct parent parent = { 0 };
struct child child[2];
struct child *c;
xorg_list_init(&parent.children);
xorg_list_add(&child[0].node, &parent.children);
assert(!xorg_list_is_empty(&parent.children));
xorg_list_del(&parent.children);
assert(xorg_list_is_empty(&parent.children));
xorg_list_add(&child[0].node, &parent.children);
xorg_list_del(&child[0].node);
assert(xorg_list_is_empty(&parent.children));
xorg_list_add(&child[0].node, &parent.children);
xorg_list_add(&child[1].node, &parent.children);
c = xorg_list_first_entry(&parent.children, struct child, node);
assert(memcmp(c, &child[1], sizeof(struct child)) == 0);
/* delete first node */
xorg_list_del(&child[1].node);
assert(!xorg_list_is_empty(&parent.children));
assert(xorg_list_is_empty(&child[1].node));
c = xorg_list_first_entry(&parent.children, struct child, node);
assert(memcmp(c, &child[0], sizeof(struct child)) == 0);
/* delete last node */
xorg_list_add(&child[1].node, &parent.children);
xorg_list_del(&child[0].node);
c = xorg_list_first_entry(&parent.children, struct child, node);
assert(memcmp(c, &child[1], sizeof(struct child)) == 0);
/* delete list head */
xorg_list_add(&child[0].node, &parent.children);
xorg_list_del(&parent.children);
assert(xorg_list_is_empty(&parent.children));
assert(!xorg_list_is_empty(&child[0].node));
assert(!xorg_list_is_empty(&child[1].node));
}
static void
test_xorg_list_for_each(void)
{
struct parent parent = { 0 };
struct child child[3];
struct child *c;
int i = 0;
xorg_list_init(&parent.children);
xorg_list_add(&child[2].node, &parent.children);
xorg_list_add(&child[1].node, &parent.children);
xorg_list_add(&child[0].node, &parent.children);
xorg_list_for_each_entry(c, &parent.children, node) {
assert(memcmp(c, &child[i], sizeof(struct child)) == 0);
i++;
}
/* foreach on empty list */
xorg_list_del(&parent.children);
assert(xorg_list_is_empty(&parent.children));
xorg_list_for_each_entry(c, &parent.children, node) {
assert(0); /* we must not get here */
}
}
struct foo {
char a;
struct foo *next;
char b;
};
static void
test_nt_list_init(void)
{
struct foo foo;
foo.a = 10;
foo.b = 20;
nt_list_init(&foo, next);
assert(foo.a == 10);
assert(foo.b == 20);
assert(foo.next == NULL);
assert(nt_list_next(&foo, next) == NULL);
}
static void
test_nt_list_append(void)
{
int i;
struct foo *foo = calloc(10, sizeof(struct foo));
struct foo *item;
for (item = foo, i = 1; i <= 10; i++, item++) {
item->a = i;
item->b = i * 2;
nt_list_init(item, next);
if (item != foo)
nt_list_append(item, foo, struct foo, next);
}
/* Test using nt_list_next */
for (item = foo, i = 1; i <= 10; i++, item = nt_list_next(item, next)) {
assert(item->a == i);
assert(item->b == i * 2);
}
/* Test using nt_list_for_each_entry */
i = 1;
nt_list_for_each_entry(item, foo, next) {
assert(item->a == i);
assert(item->b == i * 2);
i++;
}
assert(i == 11);
}
static void
test_nt_list_insert(void)
{
int i;
struct foo *foo = calloc(10, sizeof(struct foo));
struct foo *item;
foo->a = 1;
foo->b = 2;
nt_list_init(foo, next);
for (item = &foo[1], i = 10; i > 1; i--, item++) {
item->a = i;
item->b = i * 2;
nt_list_init(item, next);
nt_list_insert(item, foo, struct foo, next);
}
/* Test using nt_list_next */
for (item = foo, i = 1; i <= 10; i++, item = nt_list_next(item, next)) {
assert(item->a == i);
assert(item->b == i * 2);
}
/* Test using nt_list_for_each_entry */
i = 1;
nt_list_for_each_entry(item, foo, next) {
assert(item->a == i);
assert(item->b == i * 2);
i++;
}
assert(i == 11);
}
static void
test_nt_list_delete(void)
{
int i = 1;
struct foo *list = calloc(10, sizeof(struct foo));
struct foo *foo = list;
struct foo *item, *tmp;
struct foo *empty_list = foo;
nt_list_init(empty_list, next);
nt_list_del(empty_list, empty_list, struct foo, next);
assert(!empty_list);
for (item = foo, i = 1; i <= 10; i++, item++) {
item->a = i;
item->b = i * 2;
nt_list_init(item, next);
if (item != foo)
nt_list_append(item, foo, struct foo, next);
}
i = 0;
nt_list_for_each_entry(item, foo, next) {
i++;
}
assert(i == 10);
/* delete last item */
nt_list_del(&foo[9], foo, struct foo, next);
i = 0;
nt_list_for_each_entry(item, foo, next) {
assert(item->a != 10); /* element 10 is gone now */
i++;
}
assert(i == 9); /* 9 elements left */
/* delete second item */
nt_list_del(foo->next, foo, struct foo, next);
assert(foo->next->a == 3);
i = 0;
nt_list_for_each_entry(item, foo, next) {
assert(item->a != 10); /* element 10 is gone now */
assert(item->a != 2); /* element 2 is gone now */
i++;
}
assert(i == 8); /* 9 elements left */
item = foo;
/* delete first item */
nt_list_del(foo, foo, struct foo, next);
assert(item != foo);
assert(item->next == NULL);
assert(foo->a == 3);
assert(foo->next->a == 4);
nt_list_for_each_entry_safe(item, tmp, foo, next) {
nt_list_del(item, foo, struct foo, next);
}
assert(!foo);
assert(!item);
free(list);
}
int
list_test(void)
{
test_xorg_list_init();
test_xorg_list_add();
test_xorg_list_append();
test_xorg_list_del();
test_xorg_list_for_each();
test_nt_list_init();
test_nt_list_append();
test_nt_list_insert();
test_nt_list_delete();
return 0;
}