Function TEST

test/cpp/fluid/framework/program_desc_test.cc:26–58

class VarDesc;

TEST(ProgramDesc, block_desc_move) {
  auto program = std::make_unique<ProgramDesc>();
  auto* global_block = program->MutableBlock(0);

  auto* op = global_block->AppendOp();
  op->SetType("op_with_subblock");
  op->SetAttr("sub_block", program->AppendBlock(*global_block));

  std::vector<BlockDesc*> sub_blocks;
  sub_blocks.push_back(program->AppendBlock(*global_block));
  sub_blocks.push_back(program->AppendBlock(*global_block));
  op->SetAttr("sub_blocks", sub_blocks);

  program->Flush();

  ProgramDesc program_move;
  for (size_t i = 1; i < program->Size(); ++i) {
    program_move.AppendBlock(program_move.Block(0));
  }
  for (size_t i = 0; i < program->Size(); ++i) {
    program_move.MutableBlock(i)->MoveFrom(program->MutableBlock(i));
  }
  program = nullptr;
  EXPECT_EQ(program_move.Size(), static_cast<size_t>(4));
  op = program_move.Block(0).Op(0);
  auto sub_block = op->GetAttrIfExists<BlockDesc*>("sub_block");
  EXPECT_EQ(sub_block, program_move.MutableBlock(1));

  sub_blocks = op->GetAttrIfExists<std::vector<BlockDesc*>>("sub_blocks");
  EXPECT_EQ(sub_blocks.size(), static_cast<size_t>(2));
  EXPECT_EQ(sub_blocks[0], program_move.MutableBlock(2));
  EXPECT_EQ(sub_blocks[1], program_move.MutableBlock(3));
}

TEST(ProgramDesc, copy_ctor) {
  ProgramDesc program;