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+/*************************************************************************/
+/* test_oa_hash_map.cpp */
+/*************************************************************************/
+/* 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). */
+/* */
+/* 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/templates/oa_hash_map.h"
+
+namespace TestOAHashMap {
+
+struct CountedItem {
+ static int count;
+
+ int id = -1;
+ bool destroyed = false;
+
+ CountedItem() {
+ count++;
+ }
+
+ CountedItem(int p_id) :
+ id(p_id) {
+ count++;
+ }
+
+ CountedItem(const CountedItem &p_other) :
+ id(p_other.id) {
+ 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;
+ }
+ }
+ }
+
+ // Test map with 0 capacity.
+ {
+ OAHashMap<int, String> original_map(0);
+ original_map.set(1, "1");
+ OS::get_singleton()->print("OAHashMap 0 capacity initialization passed.\n");
+ }
+
+ // Test copy constructor.
+ {
+ OAHashMap<int, String> original_map;
+ original_map.set(1, "1");
+ original_map.set(2, "2");
+ original_map.set(3, "3");
+ original_map.set(4, "4");
+ original_map.set(5, "5");
+
+ OAHashMap<int, String> map_copy(original_map);
+
+ bool pass = true;
+ for (
+ OAHashMap<int, String>::Iterator it = original_map.iter();
+ it.valid;
+ it = original_map.next_iter(it)) {
+ if (map_copy.lookup_ptr(*it.key) == nullptr) {
+ pass = false;
+ }
+ if (*it.value != *map_copy.lookup_ptr(*it.key)) {
+ pass = false;
+ }
+ }
+ if (pass) {
+ OS::get_singleton()->print("OAHashMap copy constructor test passed.\n");
+ } else {
+ OS::get_singleton()->print("OAHashMap copy constructor test FAILED.\n");
+ }
+
+ map_copy.set(1, "Random String");
+ if (*map_copy.lookup_ptr(1) == *original_map.lookup_ptr(1)) {
+ OS::get_singleton()->print("OAHashMap copy constructor, atomic copy test FAILED.\n");
+ } else {
+ OS::get_singleton()->print("OAHashMap copy constructor, atomic copy test passed.\n");
+ }
+ }
+
+ // Test assign operator.
+ {
+ OAHashMap<int, String> original_map;
+ original_map.set(1, "1");
+ original_map.set(2, "2");
+ original_map.set(3, "3");
+ original_map.set(4, "4");
+ original_map.set(5, "5");
+
+ OAHashMap<int, String> map_copy(100000);
+ map_copy.set(1, "Just a string.");
+ map_copy = original_map;
+
+ bool pass = true;
+ for (
+ OAHashMap<int, String>::Iterator it = map_copy.iter();
+ it.valid;
+ it = map_copy.next_iter(it)) {
+ if (original_map.lookup_ptr(*it.key) == nullptr) {
+ pass = false;
+ }
+ if (*it.value != *original_map.lookup_ptr(*it.key)) {
+ pass = false;
+ }
+ }
+ if (pass) {
+ OS::get_singleton()->print("OAHashMap assign operation test passed.\n");
+ } else {
+ OS::get_singleton()->print("OAHashMap assign operation test FAILED.\n");
+ }
+
+ map_copy.set(1, "Random String");
+ if (*map_copy.lookup_ptr(1) == *original_map.lookup_ptr(1)) {
+ OS::get_singleton()->print("OAHashMap assign operation atomic copy test FAILED.\n");
+ } else {
+ OS::get_singleton()->print("OAHashMap assign operation atomic copy test passed.\n");
+ }
+ }
+
+ return nullptr;
+}
+} // namespace TestOAHashMap
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