/*****************************************************************************
* list.cpp: tests for vlc_list in C++
*****************************************************************************
* Copyright (C) 2024 VideoLabs
*
* Authors: Alexandre Janniaux <ajanni@videolabs.io>
* Pierre Lamot <pierre@videolabs.io>
*
* This program 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 2.1 of the License, or
* (at your option) any later version.
*
* This program 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 program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_list.hpp>
#include <cassert>
struct item {
int index = 0;
struct vlc_list node;
};
struct test_list {
struct vlc_list list;
test_list()
{
vlc_list_init(&list);
}
};
int main()
{
{
test_list o;
auto l = vlc::from(o.list, &item::node);
assert(l.begin() == l.end());
assert(l.cbegin() == l.cend());
assert(l.rbegin() == l.rend());
assert(l.crbegin() == l.crend());
}
{
test_list o;
item t1; t1.index = 5;
vlc_list_append(&t1.node, &o.list);
auto l = vlc::from(o.list, &item::node);
assert(l.begin() != l.end());
assert(l.cbegin() != l.cend());
assert(l.rbegin() != l.rend());
assert(l.crbegin() != l.crend());
assert(l.begin()->index == 5);
assert(l.rbegin()->index == 5);
assert(l.cbegin()->index == 5);
assert(l.crbegin()->index == 5);
item t2; t2.index = 10;
vlc_list_append(&t2.node, &o.list);
assert(l.begin()->index == 5);
assert(l.cbegin()->index == 5);
assert(l.rbegin()->index == 10);
assert(l.crbegin()->index == 10);
assert(l.as_reverse().begin()->index == 10);
assert(l.as_reverse().cbegin()->index == 10);
assert(l.as_reverse().rbegin()->index == 5);
assert(l.as_reverse().crbegin()->index == 5);
}
/* Check that the type system will handle the const variant. */
{
const test_list l;
/* Note: the type must be enforced here. */
vlc::const_list<item> t = vlc::from(l.list, &item::node);
(void)t;
}
{
test_list l;
item t1, t2;
vlc_list_append(&t1.node, &l.list);
vlc_list_append(&t2.node, &l.list);
{
int i = 1;
for (auto &t : vlc::from(l.list, &item::node))
{
fprintf(stderr, "Checking mutable list, got %d, expects %d\n", t.index, i);
t.index = i++;
}
assert(t1.index == 1 && t2.index == 2);
}
{
int i = 1;
const test_list& lc = l;
for (const auto &t : vlc::from(lc.list, &item::node))
{
fprintf(stderr, "Checking const list, got %d, expects %d\n", t.index, i);
assert(i++ == t.index);
}
assert(i == 3);
}
{
/* const reverse version */
int i = 2;
const test_list& lc = l;
for (const auto &t : vlc::from(lc.list, &item::node).as_reverse())
{
fprintf(stderr, "Checking reverse mutable list, got %d, expects %d\n", t.index, i);
assert(i-- == t.index);
}
assert(i == 0);
}
{
/* mutable reverse version */
int i = 2;
test_list& lc = l;
for (auto &t : vlc::from(lc.list, &item::node).as_reverse())
{
fprintf(stderr, "Checking reverse const list, got %d, expects %d\n", t.index, i);
assert(i-- == t.index);
}
assert(i == 0);
}
}
{
test_list l;
item t1, t2;
vlc_list_append(&t1.node, &l.list);
vlc_list_append(&t2.node, &l.list);
t1.index = 1;
t2.index = 2;
int index = 0;
test_list& lc = l;
for (auto &t : vlc::from(lc.list, &item::node))
{
if (t.index == 1)
vlc_list_remove(&t.node);
else
index = t.index;
}
assert(index == 2);
assert(vlc_list_is_first(&t2.node, &l.list));
assert(vlc_list_is_last(&t2.node, &l.list));
}
{
test_list l;
item t1, t2;
vlc_list_append(&t1.node, &l.list);
vlc_list_append(&t2.node, &l.list);
t1.index = 1;
t2.index = 2;
int index = 0;
test_list& lc = l;
for (auto &t : vlc::from(lc.list, &item::node).as_reverse())
{
if (t.index == 2)
vlc_list_remove(&t.node);
else
index = t.index;
}
assert(index == 1);
assert(vlc_list_is_first(&t1.node, &l.list));
assert(vlc_list_is_last(&t1.node, &l.list));
}
{
/* Check that removal are working correctly when the current item is
* being removed during iteration. */
test_list l;
item t1, t2;
vlc_list_append(&t1.node, &l.list);
vlc_list_append(&t2.node, &l.list);
t1.index = 1;
t2.index = 2;
auto list = vlc::from(l.list, &item::node);
auto it = list.begin();
assert((*it).index == 1);
vlc_list_remove(&(*it).node);
++it;
assert(it != list.end());
assert(it == list.begin());
assert((*it).index == 2);
--it;
assert(it == list.end());
}
{
test_list l;
auto lw = vlc::from(l.list, &item::node);
item t1; t1.index = 1;
lw.push_front(t1);
item t2; t2.index = 2;
lw.push_front(t2);
item t3; t3.index = 3;
lw.push_front(t3);
int i = 3;
for (auto &t : lw)
{
assert(t.index == i--);
}
assert(i == 0);
auto it = lw.begin();
++it;
assert((*it).index == 2);
lw.erase(it);
assert((*++lw.begin()).index == 1);
}
{
test_list l;
auto lw = vlc::from(l.list, &item::node);
item t1; t1.index = 1;
lw.push_front(t1);
item t2; t2.index = 2;
lw.push_front(t2);
item t3; t3.index = 3;
lw.push_front(t3);
int i = 1;
for (auto &t : lw.as_reverse())
{
assert(t.index == i++);
}
assert(i == 4);
auto it = lw.begin();
++it;
assert((*it).index == 2);
lw.erase(it);
assert((*++lw.begin()).index == 1);
}
{
test_list l;
auto lw = vlc::from(l.list, &item::node);
item t1; t1.index = 1;
lw.push_front(t1);
item t2; t2.index = 2;
lw.push_front(t2);
item t3; t3.index = 3;
lw.push_front(t3);
auto lr = vlc::from(l.list, &item::node).as_reverse();
{
auto it = lw.erase(lr.begin());
fprintf(stderr, "Removing as_reverse().begin() in [ 1, 2, 3 ] and "
"checking as_reverse().begin(), got %d, expects %d, removed %d\n",
lr.begin()->index, 2, it->index);
}
assert(lr.begin()->index == 2);
{
auto it = lw.erase(lr.rbegin());
fprintf(stderr, "Removing as_reverse().rbegin() in [ 1, 2 ] and "
"checking as_reverse().rbegin(), got %d, expects %d, removed %d\n",
lr.rbegin()->index, 2, it->index);
}
assert(lr.rbegin()->index == 2);
}
return 0;
}
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet am 2026-11-04)
¤
*© Formatika GbR, Deutschland
|
|