// Copyright (c) 2021 CINN Authors. All Rights Reserved.
//
// 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 "paddle/cinn/optim/remove_nested_block.h"

#include <gtest/gtest.h>

#include <string>
#include <vector>

#include "paddle/cinn/ir/utils/ir_printer.h"
#include "paddle/cinn/utils/string.h"

namespace cinn {
namespace optim {

TEST(RemoveNestedBlock, basic) {
  auto block0 = ir::Block::Make({Expr(1.f), Expr(1.f)});
  auto block1 = ir::Block::Make({block0});
  auto e = Expr(block1);

  std::string origin = utils::GetStreamCnt(e);
  EXPECT_EQ(origin, utils::Trim(R"ROC(
{
  {
    1.00000000f
    1.00000000f
  }
}
  )ROC"));

  std::cout << "origin:\n" << e << std::endl;

  RemoveNestedBlock(&e);

  std::cout << "e:\n" << e << std::endl;

  EXPECT_EQ(utils::GetStreamCnt(e), utils::Trim(R"ROC(
{
  1.00000000f
  1.00000000f
}
  )ROC"));
}

}  // namespace optim
}  // namespace cinn
