157 lines
4.9 KiB
C++
157 lines
4.9 KiB
C++
/*************************************************************************/
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/* test_oa_hash_map.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "test_oa_hash_map.h"
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#include "core/oa_hash_map.h"
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#include "core/os/os.h"
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namespace TestOAHashMap {
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MainLoop *test() {
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OS::get_singleton()->print("\n\n\nHello from test\n");
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// test element tracking.
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{
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OAHashMap<int, int> map;
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map.set(42, 1337);
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map.set(1337, 21);
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map.set(42, 11880);
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int value = 0;
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map.lookup(42, value);
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OS::get_singleton()->print("capacity %d\n", map.get_capacity());
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OS::get_singleton()->print("elements %d\n", map.get_num_elements());
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OS::get_singleton()->print("map[42] = %d\n", value);
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}
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// rehashing and deletion
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{
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OAHashMap<int, int> map;
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for (int i = 0; i < 500; i++) {
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map.set(i, i * 2);
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}
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for (int i = 0; i < 500; i += 2) {
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map.remove(i);
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}
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uint32_t num_elems = 0;
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for (int i = 0; i < 500; i++) {
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int tmp;
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if (map.lookup(i, tmp) && tmp == i * 2)
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num_elems++;
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}
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OS::get_singleton()->print("elements %d == %d.\n", map.get_num_elements(), num_elems);
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}
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// iteration
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{
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OAHashMap<String, int> map;
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map.set("Hello", 1);
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map.set("World", 2);
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map.set("Godot rocks", 42);
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for (OAHashMap<String, int>::Iterator it = map.iter(); it.valid; it = map.next_iter(it)) {
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OS::get_singleton()->print("map[\"%s\"] = %d\n", it.key->utf8().get_data(), *it.value);
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}
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}
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// stress test / test for issue #22928
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{
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OAHashMap<int, int> map;
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int dummy = 0;
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const int N = 1000;
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uint32_t *keys = new uint32_t[N];
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Math::seed(0);
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// insert a couple of random keys (with a dummy value, which is ignored)
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for (int i = 0; i < N; i++) {
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keys[i] = Math::rand();
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map.set(keys[i], dummy);
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if (!map.lookup(keys[i], dummy))
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OS::get_singleton()->print("could not find 0x%X despite it was just inserted!\n", unsigned(keys[i]));
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}
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// check whether the keys are still present
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for (int i = 0; i < N; i++) {
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if (!map.lookup(keys[i], dummy)) {
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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]));
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break;
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}
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}
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delete[] keys;
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}
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// regression test / test for issue related to #31402
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{
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OS::get_singleton()->print("test for issue #31402 started...\n");
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const int num_test_values = 12;
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int test_values[num_test_values] = { 0, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264 };
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int dummy = 0;
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OAHashMap<int, int> map;
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map.clear();
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for (int i = 0; i < num_test_values; ++i) {
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map.set(test_values[i], dummy);
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}
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OS::get_singleton()->print("test for issue #31402 passed.\n");
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}
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// test collision resolution, should not crash or run indefinitely
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{
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OAHashMap<int, int> map(4);
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map.set(1, 1);
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map.set(5, 1);
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map.set(9, 1);
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map.set(13, 1);
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map.remove(5);
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map.remove(9);
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map.remove(13);
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map.set(5, 1);
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}
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return nullptr;
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}
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} // namespace TestOAHashMap
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