godot/main/tests/test_oa_hash_map.cpp
Rémi Verschelde 1426cd3b3a
One Copyright Update to rule them all
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.

It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).

We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).

Also fixed "cf." Frenchism - it's meant as "refer to / see".

Backported from #70885.
2023-01-10 15:26:54 +01:00

220 lines
6.0 KiB
C++

/**************************************************************************/
/* test_oa_hash_map.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 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. */
/**************************************************************************/
#include "test_oa_hash_map.h"
#include "core/oa_hash_map.h"
#include "core/os/os.h"
namespace TestOAHashMap {
struct CountedItem {
static int count;
int id;
bool destroyed;
CountedItem() :
id(-1),
destroyed(false) {
count++;
}
CountedItem(int p_id) :
id(p_id),
destroyed(false) {
count++;
}
CountedItem(const CountedItem &p_other) :
id(p_other.id),
destroyed(false) {
count++;
}
CountedItem &operator=(const CountedItem &p_other) = default;
~CountedItem() {
CRASH_COND(destroyed);
count--;
destroyed = true;
}
};
int CountedItem::count;
MainLoop *test() {
OS::get_singleton()->print("\n\n\nHello from test\n");
// test element tracking.
{
OAHashMap<int, int> map;
map.set(42, 1337);
map.set(1337, 21);
map.set(42, 11880);
int value = 0;
map.lookup(42, value);
OS::get_singleton()->print("capacity %d\n", map.get_capacity());
OS::get_singleton()->print("elements %d\n", map.get_num_elements());
OS::get_singleton()->print("map[42] = %d\n", value);
}
// rehashing and deletion
{
OAHashMap<int, int> map;
for (int i = 0; i < 500; i++) {
map.set(i, i * 2);
}
for (int i = 0; i < 500; i += 2) {
map.remove(i);
}
uint32_t num_elems = 0;
for (int i = 0; i < 500; i++) {
int tmp;
if (map.lookup(i, tmp) && tmp == i * 2) {
num_elems++;
}
}
OS::get_singleton()->print("elements %d == %d.\n", map.get_num_elements(), num_elems);
}
// iteration
{
OAHashMap<String, int> map;
map.set("Hello", 1);
map.set("World", 2);
map.set("Godot rocks", 42);
for (OAHashMap<String, int>::Iterator it = map.iter(); it.valid; it = map.next_iter(it)) {
OS::get_singleton()->print("map[\"%s\"] = %d\n", it.key->utf8().get_data(), *it.value);
}
}
// stress test / test for issue #22928
{
OAHashMap<int, int> map;
int dummy = 0;
const int N = 1000;
uint32_t *keys = new uint32_t[N];
Math::seed(0);
// insert a couple of random keys (with a dummy value, which is ignored)
for (int i = 0; i < N; i++) {
keys[i] = Math::rand();
map.set(keys[i], dummy);
if (!map.lookup(keys[i], dummy)) {
OS::get_singleton()->print("could not find 0x%X despite it was just inserted!\n", unsigned(keys[i]));
}
}
// check whether the keys are still present
for (int i = 0; i < N; i++) {
if (!map.lookup(keys[i], dummy)) {
OS::get_singleton()->print("could not find 0x%X despite it has been inserted previously! (not checking the other keys, breaking...)\n", unsigned(keys[i]));
break;
}
}
delete[] keys;
}
// regression test / test for issue related to #31402
{
OS::get_singleton()->print("test for issue #31402 started...\n");
const int num_test_values = 12;
int test_values[num_test_values] = { 0, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264 };
int dummy = 0;
OAHashMap<int, int> map;
map.clear();
for (int i = 0; i < num_test_values; ++i) {
map.set(test_values[i], dummy);
}
OS::get_singleton()->print("test for issue #31402 passed.\n");
}
// test collision resolution, should not crash or run indefinitely
{
OAHashMap<int, int> map(4);
map.set(1, 1);
map.set(5, 1);
map.set(9, 1);
map.set(13, 1);
map.remove(5);
map.remove(9);
map.remove(13);
map.set(5, 1);
}
// test memory management of items, should not crash or leak items
{
// Exercise different patterns of removal
for (int i = 0; i < 4; ++i) {
{
OAHashMap<String, CountedItem> map;
int id = 0;
for (int j = 0; j < 100; ++j) {
map.insert(itos(j), CountedItem(id));
}
if (i <= 1) {
for (int j = 0; j < 100; ++j) {
map.remove(itos(j));
}
}
if (i % 2 == 0) {
map.clear();
}
}
if (CountedItem::count != 0) {
OS::get_singleton()->print("%d != 0 (not performing the other test sub-cases, breaking...)\n", CountedItem::count);
break;
}
}
}
return nullptr;
}
} // namespace TestOAHashMap