# Copyright 2019 The gRPC Authors
#
# 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.
"""Tests AioRpcError class."""

import logging
import pickle
import unittest

import grpc
from grpc.aio._call import AioRpcError
from grpc.experimental import aio

from tests_aio.unit._test_base import AioTestBase

_TEST_INITIAL_METADATA = aio.Metadata(
    ("initial metadata key", "initial metadata value")
)
_TEST_TRAILING_METADATA = aio.Metadata(
    ("trailing metadata key", "trailing metadata value")
)
_TEST_DEBUG_ERROR_STRING = "{This is a debug string}"


class TestAioRpcError(unittest.TestCase):
    def test_attributes(self):
        aio_rpc_error = AioRpcError(
            grpc.StatusCode.CANCELLED,
            initial_metadata=_TEST_INITIAL_METADATA,
            trailing_metadata=_TEST_TRAILING_METADATA,
            details="details",
            debug_error_string=_TEST_DEBUG_ERROR_STRING,
        )
        self.assertEqual(aio_rpc_error.code(), grpc.StatusCode.CANCELLED)
        self.assertEqual(aio_rpc_error.details(), "details")
        self.assertEqual(
            aio_rpc_error.initial_metadata(), _TEST_INITIAL_METADATA
        )
        self.assertEqual(
            aio_rpc_error.trailing_metadata(), _TEST_TRAILING_METADATA
        )
        self.assertEqual(
            aio_rpc_error.debug_error_string(), _TEST_DEBUG_ERROR_STRING
        )

    def test_pickle(self):
        aio_rpc_error = AioRpcError(
            grpc.StatusCode.CANCELLED,
            initial_metadata=_TEST_INITIAL_METADATA,
            trailing_metadata=_TEST_TRAILING_METADATA,
            details="details",
            debug_error_string=_TEST_DEBUG_ERROR_STRING,
        )
        dump_error = pickle.dumps(aio_rpc_error)
        loaded_error = pickle.loads(dump_error)
        self.assertEqual(loaded_error.code(), grpc.StatusCode.CANCELLED)
        self.assertEqual(loaded_error.details(), "details")
        self.assertEqual(
            loaded_error.initial_metadata(), _TEST_INITIAL_METADATA
        )
        self.assertEqual(
            loaded_error.trailing_metadata(), _TEST_TRAILING_METADATA
        )
        self.assertEqual(
            loaded_error.debug_error_string(), _TEST_DEBUG_ERROR_STRING
        )


if __name__ == "__main__":
    logging.basicConfig()
    unittest.main(verbosity=2)