# Copyright (c) 2024 PaddlePaddle 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.

import os
import unittest

import paddle
from paddle.base.framework import flag_guard, in_cinn_mode, in_pir_executor_mode


class TestPIRModeFlags(unittest.TestCase):
    def test_pir_mode_flags(self):
        self.assertTrue(in_pir_executor_mode())
        os.environ["FLAGS_enable_pir_in_executor"] = "false"
        self.assertFalse(in_pir_executor_mode())


class TestCinnModeFlags(unittest.TestCase):
    def test_cinn_mode_flags(self):
        CINN_FLAG_NAME = "FLAGS_use_cinn"
        if not paddle.is_compiled_with_cinn():
            self.assertFalse(in_cinn_mode())
            return
        self.assertFalse(in_cinn_mode())
        with flag_guard(CINN_FLAG_NAME, True):
            self.assertTrue(in_cinn_mode())


if __name__ == '__main__':
    unittest.main()