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# Copyright 2017 Google LLC
#
# 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 datetime
from grpc import aio
import mock
import pytest
from google.api_core import exceptions
from google.api_core import gapic_v1
from google.api_core import grpc_helpers_async
from google.api_core import retry_async
from google.api_core import timeout
def _utcnow_monotonic():
current_time = datetime.datetime.min
delta = datetime.timedelta(seconds=0.5)
while True:
yield current_time
current_time += delta
@pytest.mark.asyncio
async def test_wrap_method_basic():
fake_call = grpc_helpers_async.FakeUnaryUnaryCall(42)
method = mock.Mock(spec=aio.UnaryUnaryMultiCallable, return_value=fake_call)
wrapped_method = gapic_v1.method_async.wrap_method(method)
result = await wrapped_method(1, 2, meep="moop")
assert result == 42
method.assert_called_once_with(1, 2, meep="moop", metadata=mock.ANY)
# Check that the default client info was specified in the metadata.
metadata = method.call_args[1]["metadata"]
assert len(metadata) == 1
client_info = gapic_v1.client_info.DEFAULT_CLIENT_INFO
user_agent_metadata = client_info.to_grpc_metadata()
assert user_agent_metadata in metadata
@pytest.mark.asyncio
async def test_wrap_method_with_no_client_info():
fake_call = grpc_helpers_async.FakeUnaryUnaryCall()
method = mock.Mock(spec=aio.UnaryUnaryMultiCallable, return_value=fake_call)
wrapped_method = gapic_v1.method_async.wrap_method(method, client_info=None)
await wrapped_method(1, 2, meep="moop")
method.assert_called_once_with(1, 2, meep="moop")
@pytest.mark.asyncio
async def test_wrap_method_with_custom_client_info():
client_info = gapic_v1.client_info.ClientInfo(
python_version=1,
grpc_version=2,
api_core_version=3,
gapic_version=4,
client_library_version=5,
)
fake_call = grpc_helpers_async.FakeUnaryUnaryCall()
method = mock.Mock(spec=aio.UnaryUnaryMultiCallable, return_value=fake_call)
wrapped_method = gapic_v1.method_async.wrap_method(method, client_info=client_info)
await wrapped_method(1, 2, meep="moop")
method.assert_called_once_with(1, 2, meep="moop", metadata=mock.ANY)
# Check that the custom client info was specified in the metadata.
metadata = method.call_args[1]["metadata"]
assert client_info.to_grpc_metadata() in metadata
@pytest.mark.asyncio
async def test_invoke_wrapped_method_with_metadata():
fake_call = grpc_helpers_async.FakeUnaryUnaryCall()
method = mock.Mock(spec=aio.UnaryUnaryMultiCallable, return_value=fake_call)
wrapped_method = gapic_v1.method_async.wrap_method(method)
await wrapped_method(mock.sentinel.request, metadata=[("a", "b")])
method.assert_called_once_with(mock.sentinel.request, metadata=mock.ANY)
metadata = method.call_args[1]["metadata"]
# Metadata should have two items: the client info metadata and our custom
# metadata.
assert len(metadata) == 2
assert ("a", "b") in metadata
@pytest.mark.asyncio
async def test_invoke_wrapped_method_with_metadata_as_none():
fake_call = grpc_helpers_async.FakeUnaryUnaryCall()
method = mock.Mock(spec=aio.UnaryUnaryMultiCallable, return_value=fake_call)
wrapped_method = gapic_v1.method_async.wrap_method(method)
await wrapped_method(mock.sentinel.request, metadata=None)
method.assert_called_once_with(mock.sentinel.request, metadata=mock.ANY)
metadata = method.call_args[1]["metadata"]
# Metadata should have just one items: the client info metadata.
assert len(metadata) == 1
@mock.patch("asyncio.sleep")
@pytest.mark.asyncio
async def test_wrap_method_with_default_retry_and_timeout(unused_sleep):
fake_call = grpc_helpers_async.FakeUnaryUnaryCall(42)
method = mock.Mock(
spec=aio.UnaryUnaryMultiCallable,
side_effect=[exceptions.InternalServerError(None), fake_call],
)
default_retry = retry_async.AsyncRetry()
default_timeout = timeout.ConstantTimeout(60)
wrapped_method = gapic_v1.method_async.wrap_method(
method, default_retry, default_timeout
)
result = await wrapped_method()
assert result == 42
assert method.call_count == 2
method.assert_called_with(timeout=60, metadata=mock.ANY)
@mock.patch("asyncio.sleep")
@pytest.mark.asyncio
async def test_wrap_method_with_default_retry_and_timeout_using_sentinel(unused_sleep):
fake_call = grpc_helpers_async.FakeUnaryUnaryCall(42)
method = mock.Mock(
spec=aio.UnaryUnaryMultiCallable,
side_effect=[exceptions.InternalServerError(None), fake_call],
)
default_retry = retry_async.AsyncRetry()
default_timeout = timeout.ConstantTimeout(60)
wrapped_method = gapic_v1.method_async.wrap_method(
method, default_retry, default_timeout
)
result = await wrapped_method(
retry=gapic_v1.method_async.DEFAULT, timeout=gapic_v1.method_async.DEFAULT,
)
assert result == 42
assert method.call_count == 2
method.assert_called_with(timeout=60, metadata=mock.ANY)
@mock.patch("asyncio.sleep")
@pytest.mark.asyncio
async def test_wrap_method_with_overriding_retry_and_timeout(unused_sleep):
fake_call = grpc_helpers_async.FakeUnaryUnaryCall(42)
method = mock.Mock(
spec=aio.UnaryUnaryMultiCallable,
side_effect=[exceptions.NotFound(None), fake_call],
)
default_retry = retry_async.AsyncRetry()
default_timeout = timeout.ConstantTimeout(60)
wrapped_method = gapic_v1.method_async.wrap_method(
method, default_retry, default_timeout
)
result = await wrapped_method(
retry=retry_async.AsyncRetry(
retry_async.if_exception_type(exceptions.NotFound)
),
timeout=timeout.ConstantTimeout(22),
)
assert result == 42
assert method.call_count == 2
method.assert_called_with(timeout=22, metadata=mock.ANY)
@mock.patch("asyncio.sleep")
@mock.patch(
"google.api_core.datetime_helpers.utcnow",
side_effect=_utcnow_monotonic(),
autospec=True,
)
@pytest.mark.asyncio
async def test_wrap_method_with_overriding_retry_deadline(utcnow, unused_sleep):
fake_call = grpc_helpers_async.FakeUnaryUnaryCall(42)
method = mock.Mock(
spec=aio.UnaryUnaryMultiCallable,
side_effect=([exceptions.InternalServerError(None)] * 4) + [fake_call],
)
default_retry = retry_async.AsyncRetry()
default_timeout = timeout.ExponentialTimeout(deadline=60)
wrapped_method = gapic_v1.method_async.wrap_method(
method, default_retry, default_timeout
)
# Overriding only the retry's deadline should also override the timeout's
# deadline.
result = await wrapped_method(retry=default_retry.with_deadline(30))
assert result == 42
timeout_args = [call[1]["timeout"] for call in method.call_args_list]
assert timeout_args == [5.0, 10.0, 20.0, 26.0, 25.0]
assert utcnow.call_count == (
1
+ 1 # Compute wait_for timeout in retry_async
+ 5 # First to set the deadline.
+ 5 # One for each min(timeout, maximum, (DEADLINE - NOW).seconds)
)
@pytest.mark.asyncio
async def test_wrap_method_with_overriding_timeout_as_a_number():
fake_call = grpc_helpers_async.FakeUnaryUnaryCall(42)
method = mock.Mock(spec=aio.UnaryUnaryMultiCallable, return_value=fake_call)
default_retry = retry_async.AsyncRetry()
default_timeout = timeout.ConstantTimeout(60)
wrapped_method = gapic_v1.method_async.wrap_method(
method, default_retry, default_timeout
)
result = await wrapped_method(timeout=22)
assert result == 42
method.assert_called_once_with(timeout=22, metadata=mock.ANY)
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