BLI_pool_test.cc

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: Apache-2.0 */
 
#include "testing/testing.h"
 
#include "BLI_exception_safety_test_utils.hh"
#include "BLI_pool.hh"
 
#include "BLI_strict_flags.h" /* IWYU pragma: keep. Keep last. */
 
namespace blender::tests {
 
TEST(pool, DefaultConstructor)
{
  Pool<int> pool;
  EXPECT_EQ(pool.size(), 0);
}
 
TEST(pool, Allocation)
{
  Vector<int *> ptrs;
  Pool<int> pool;
  for (int i = 0; i < 100; i++) {
    ptrs.append(&pool.construct(i));
  }
  EXPECT_EQ(pool.size(), 100);
 
  for (int *ptr : ptrs) {
    pool.destruct(*ptr);
  }
  EXPECT_EQ(pool.size(), 0);
}
 
TEST(pool, Reuse)
{
  Vector<int *> ptrs;
  Pool<int> pool;
  for (int i = 0; i < 32; i++) {
    ptrs.append(&pool.construct(i));
  }
 
  int *freed_ptr = ptrs[6];
  pool.destruct(*freed_ptr);
 
  ptrs[6] = &pool.construct(0);
 
  EXPECT_EQ(ptrs[6], freed_ptr);
 
  for (int *ptr : ptrs) {
    pool.destruct(*ptr);
  }
}
 
}  // namespace blender::tests