def test_expand(transport: str = 'grpc'):
client = EchoClient(
credentials=credentials.AnonymousCredentials(),
transport=transport,
)
# Everything is optional in proto3 as far as the runtime is concerned,
# and we are mocking out the actual API, so just send an empty request.
request = gs_echo.ExpandRequest()
# Mock the actual call within the gRPC stub, and fake the request.
with mock.patch.object(type(client._transport.expand), '__call__') as call:
# Designate an appropriate return value for the call.
call.return_value = iter([gs_echo.EchoResponse()])
response = client.expand(request)
# Establish that the underlying gRPC stub method was called.
assert len(call.mock_calls) == 1
_, args, _ = call.mock_calls[0]
assert args[0] == request
# Establish that the response is the type that we expect.
for message in response:
assert isinstance(message, gs_echo.EchoResponse)
def test_expand():
print("=================test expand ===================")
client = EchoClient(transport=transport)
request = gs_echo.ExpandRequest(content='one two three four')
responses = client.expand(request)
for message in responses:
print(message)
print("trailing metadata...")
print(responses.trailing_metadata())
def test_expand_flattened_error():
client = EchoClient(credentials=credentials.AnonymousCredentials(), )
# Attempting to call a method with both a request object and flattened
# fields is an error.
with pytest.raises(ValueError):
client.expand(
gs_echo.ExpandRequest(),
content='content_value',
error=status.Status(code=411),
)
def run_should_pass():
print("================= should pass ====================")
header_adder_interceptor = client_interceptor.header_adder_interceptor(
'one-time-password', '42')
channel = grpc.insecure_channel('localhost:50051')
intercept_channel = grpc.intercept_channel(channel,
header_adder_interceptor)
transport = transports.EchoGrpcTransport(channel=intercept_channel)
client = EchoClient(transport=transport)
request = gs_echo.ExpandRequest(content='one two three four')
responses = client.expand(request)
for message in responses:
print(message)
print("trailing metadata...")
print(responses.trailing_metadata())
def run_should_fail():
print(
"================= should fail with 'Access denied!' ===================="
)
channel = grpc.insecure_channel('localhost:50051')
transport = transports.EchoGrpcTransport(channel=channel)
client = EchoClient(transport=transport)
try:
request = gs_echo.ExpandRequest(content='one two three four')
responses = client.expand(request)
for message in responses:
print(message)
print("trailing metadata...")
print(responses.trailing_metadata())
except:
print(sys.exc_info())
def expand(
self,
request: gs_echo.ExpandRequest = None,
*,
content: str = None,
error: status.Status = None,
retry: retries.Retry = gapic_v1.method.DEFAULT,
timeout: float = None,
metadata: Sequence[Tuple[str, str]] = (),
) -> gs_echo.EchoResponse:
r"""This method split the given content into words and
will pass each word back through the stream. This method
showcases server-side streaming rpcs.
Args:
request (:class:`~.gs_echo.ExpandRequest`):
The request object. The request message for the Expand
method.
content (:class:`str`):
The content that will be split into
words and returned on the stream.
This corresponds to the ``content`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
error (:class:`~.status.Status`):
The error that is thrown after all
words are sent on the stream.
This corresponds to the ``error`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
retry (google.api_core.retry.Retry): Designation of what errors, if any,
should be retried.
timeout (float): The timeout for this request.
metadata (Sequence[Tuple[str, str]]): Strings which should be
sent along with the request as metadata.
Returns:
~.gs_echo.EchoResponse:
The response message for the Echo
methods.
"""
# Create or coerce a protobuf request object.
# Sanity check: If we got a request object, we should *not* have
# gotten any keyword arguments that map to the request.
if request is not None and any([content, error]):
raise ValueError('If the `request` argument is set, then none of '
'the individual field arguments should be set.')
# If we have keyword arguments corresponding to fields on the
# request, apply these.
request = gs_echo.ExpandRequest(request)
if content is not None:
request.content = content
if error is not None:
request.error = error
# Wrap the RPC method; this adds retry and timeout information,
# and friendly error handling.
rpc = gapic_v1.method.wrap_method(
self._transport.expand,
default_timeout=None,
client_info=_client_info,
)
# Send the request.
response = rpc(
request,
retry=retry,
timeout=timeout,
metadata=metadata,
)
# Done; return the response.
return response