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// Copyright 2016 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.!

#include "freelist.h"
#include "testharness.h"

namespace sentencepiece {
namespace model {

TEST(FreeListTest, BasicTest) {
  FreeList<int> l(5);
  EXPECT_EQ(0, l.size());

  constexpr size_t kSize = 32;

  for (size_t i = 0; i < kSize; ++i) {
    int *n = l.Allocate();
    EXPECT_EQ(0, *n);
    *n = i;
  }

  EXPECT_EQ(kSize, l.size());
  for (size_t i = 0; i < kSize; ++i) {
    EXPECT_EQ(i, *l[i]);
  }

  l.Free();
  EXPECT_EQ(0, l.size());

  // Zero-initialized after `Free`.
  for (size_t i = 0; i < kSize; ++i) {
    int *n = l.Allocate();
    EXPECT_EQ(0, *n);
  }
}
}  // namespace model
}  // namespace sentencepiece