cef8de874b
The main issue of 'type-less' standard C allocations is that there is no check on allocated type possible. This is a serious source of annoyance (and crashes) when making some low-level structs non-trivial, as tracking down all usages of these structs in higher-level other structs and their allocation is... really painful. MEM_[cm]allocN<T> templates on the other hand do check that the given type is trivial, at build time (static assert), which makes such issue... trivial to catch. NOTE: New code should strive to use MEM_new (i.e. allocation and construction) as much as possible, even for trivial PoD types. Pull Request: https://projects.blender.org/blender/blender/pulls/136268
124 lines
3.2 KiB
C++
124 lines
3.2 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: Apache-2.0 */
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#include "testing/testing.h"
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#include <cstring>
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#include "MEM_guardedalloc.h"
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#include "BLI_compiler_attrs.h"
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#include "BLI_heap_simple.h"
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#include "BLI_rand.h"
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#include "BLI_sys_types.h"
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#include "BLI_utildefines.h"
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#define SIZE 1024
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static void range_fl(float *array_tar, const int size)
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{
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float *array_pt = array_tar + (size - 1);
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int i = size;
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while (i--) {
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*(array_pt--) = float(i);
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}
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}
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TEST(heap, SimpleEmpty)
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{
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HeapSimple *heap;
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heap = BLI_heapsimple_new();
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EXPECT_TRUE(BLI_heapsimple_is_empty(heap));
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EXPECT_EQ(BLI_heapsimple_len(heap), 0);
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BLI_heapsimple_free(heap, nullptr);
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}
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TEST(heap, SimpleOne)
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{
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HeapSimple *heap;
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const char *in = "test";
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heap = BLI_heapsimple_new();
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BLI_heapsimple_insert(heap, 0.0f, (void *)in);
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EXPECT_FALSE(BLI_heapsimple_is_empty(heap));
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EXPECT_EQ(BLI_heapsimple_len(heap), 1);
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EXPECT_EQ(in, BLI_heapsimple_pop_min(heap));
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EXPECT_TRUE(BLI_heapsimple_is_empty(heap));
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EXPECT_EQ(BLI_heapsimple_len(heap), 0);
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BLI_heapsimple_free(heap, nullptr);
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}
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TEST(heap, SimpleRange)
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{
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const int items_total = SIZE;
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HeapSimple *heap = BLI_heapsimple_new();
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for (int in = 0; in < items_total; in++) {
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BLI_heapsimple_insert(heap, float(in), POINTER_FROM_INT(in));
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}
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for (int out_test = 0; out_test < items_total; out_test++) {
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EXPECT_EQ(out_test, POINTER_AS_INT(BLI_heapsimple_pop_min(heap)));
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}
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EXPECT_TRUE(BLI_heapsimple_is_empty(heap));
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BLI_heapsimple_free(heap, nullptr);
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}
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TEST(heap, SimpleRangeReverse)
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{
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const int items_total = SIZE;
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HeapSimple *heap = BLI_heapsimple_new();
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for (int in = 0; in < items_total; in++) {
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BLI_heapsimple_insert(heap, float(-in), POINTER_FROM_INT(-in));
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}
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for (int out_test = items_total - 1; out_test >= 0; out_test--) {
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EXPECT_EQ(-out_test, POINTER_AS_INT(BLI_heapsimple_pop_min(heap)));
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}
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EXPECT_TRUE(BLI_heapsimple_is_empty(heap));
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BLI_heapsimple_free(heap, nullptr);
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}
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TEST(heap, SimpleDuplicates)
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{
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const int items_total = SIZE;
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HeapSimple *heap = BLI_heapsimple_new();
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for (int in = 0; in < items_total; in++) {
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BLI_heapsimple_insert(heap, 1.0f, nullptr);
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}
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for (int out_test = 0; out_test < items_total; out_test++) {
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EXPECT_EQ(0, POINTER_AS_INT(BLI_heapsimple_pop_min(heap)));
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}
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EXPECT_TRUE(BLI_heapsimple_is_empty(heap));
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BLI_heapsimple_free(heap, nullptr);
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}
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static void random_heapsimple_helper(const int items_total, const int random_seed)
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{
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HeapSimple *heap = BLI_heapsimple_new();
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float *values = MEM_malloc_arrayN<float>(size_t(items_total), __func__);
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range_fl(values, items_total);
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BLI_array_randomize(values, sizeof(float), items_total, random_seed);
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for (int i = 0; i < items_total; i++) {
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BLI_heapsimple_insert(heap, values[i], POINTER_FROM_INT(int(values[i])));
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}
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for (int out_test = 0; out_test < items_total; out_test++) {
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EXPECT_EQ(out_test, POINTER_AS_INT(BLI_heapsimple_pop_min(heap)));
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}
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EXPECT_TRUE(BLI_heapsimple_is_empty(heap));
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BLI_heapsimple_free(heap, nullptr);
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MEM_freeN(values);
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}
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TEST(heap, SimpleRand1)
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{
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random_heapsimple_helper(1, 1234);
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}
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TEST(heap, SimpleRand2)
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{
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random_heapsimple_helper(2, 1234);
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}
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TEST(heap, SimpleRand100)
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{
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random_heapsimple_helper(100, 4321);
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}
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