godot/main/tests/test_oa_hash_map.cpp

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/*************************************************************************/
/* test_oa_hash_map.cpp */
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/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
/* 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/os/os.h"
#include "core/oa_hash_map.h"
namespace TestOAHashMap {
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);
Fix GCC 8 warnings about potentially unitialized variables Fixes the following GCC 8 warnings: ``` core/image.cpp:730:44: warning: 'mip1_weight' may be used uninitialized in this function [-Wmaybe-uninitialized] core/image.cpp:293:20: warning: 'mip2' may be used uninitialized in this function [-Wmaybe-uninitialized] core/image.cpp:293:20: warning: 'mip1' may be used uninitialized in this function [-Wmaybe-uninitialized] editor/audio_stream_preview.cpp:58:19: warning: 'vmax' may be used uninitialized in this function [-Wmaybe-uninitialized] editor/audio_stream_preview.cpp:85:19: warning: 'vmin' may be used uninitialized in this function [-Wmaybe-uninitialized] editor/editor_themes.cpp:306:53: warning: 'preset_contrast' may be used uninitialized in this function [-Wmaybe-uninitialized] editor/plugins/animation_blend_space_2d_editor.cpp:459:27: warning: 'prev_idx' may be used uninitialized in this function [-Wmaybe-uninitialized] editor/plugins/animation_blend_space_2d_editor.cpp:443:27: warning: 'prev_idx' may be used uninitialized in this function [-Wmaybe-uninitialized] main/tests/test_oa_hash_map.cpp:57:29: warning: 'value' may be used uninitialized in this function [-Wmaybe-uninitialized] modules/csg/csg.cpp:764:40: warning: 'max_angle' may be used uninitialized in this function [-Wmaybe-uninitialized] modules/csg/csg_shape.cpp:1945:3: warning: 'face_count' may be used uninitialized in this function [-Wmaybe-uninitialized] scene/3d/voxel_light_baker.cpp:1593:8: warning: 'cone_aperture' may be used uninitialized in this function [-Wmaybe-uninitialized] scene/3d/voxel_light_baker.cpp:1592:6: warning: 'cone_dir_count' may be used uninitialized in this function [-Wmaybe-uninitialized] scene/animation/animation_blend_space_2d.cpp:471:8: warning: 'mind' may be used uninitialized in this function [-Wmaybe-uninitialized] core/os/memory.cpp:94: warning: ignoring #pragma clang diagnostic [-Wunknown-pragmas] core/os/memory.cpp:95: warning: ignoring #pragma clang diagnostic [-Wunknown-pragmas] core/os/memory.cpp:98: warning: ignoring #pragma clang diagnostic [-Wunknown-pragmas] ```
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int value = 0;
map.lookup(42, value);
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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)
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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);
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}
}
// 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);
}
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return NULL;
}
} // namespace TestOAHashMap