fix: resolve rare issue where ValueError is not raised when both request and flattened param are set

gapic/ads-templates/%namespace/%name/%version/%sub/services/%service/client.py.j2

@@ -410,7 +410,8 @@ class {{ service.client_name }}(metaclass={{ service.client_name }}Meta):
         {% if method.flattened_fields %}
         # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
-        has_flattened_params = any([{{ method.flattened_fields.values()|join(", ", attribute="name") }}])
+        flattened_params = [{{ method.flattened_fields.values()|join(", ", attribute="name") }}]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError('If the `request` argument is set, then none of '
                              'the individual field arguments should be set.')

gapic/templates/%namespace/%name_%version/%sub/services/%service/_client_macros.j2

@@ -90,7 +90,8 @@
         {% if method.flattened_fields %}
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([{{ method.flattened_fields.values()|join(", ", attribute="name") }}])
+        flattened_params = [{{ method.flattened_fields.values()|join(", ", attribute="name") }}]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError('If the `request` argument is set, then none of '
                              'the individual field arguments should be set.')

gapic/templates/%namespace/%name_%version/%sub/services/%service/async_client.py.j2

@@ -317,7 +317,8 @@ class {{ service.async_client_name }}:
         {% if method.flattened_fields %}
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([{{ method.flattened_fields.values()|join(", ", attribute="name") }}])
+        flattened_params = [{{ method.flattened_fields.values()|join(", ", attribute="name") }}]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")

tests/fragments/test_nested_messages.proto

@@ -0,0 +1,41 @@
+// Copyright (C) 2024  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.
+syntax = "proto3";
+
+package google.fragment;
+
+import "google/protobuf/struct.proto";
+import "google/api/client.proto";
+
+service MyServiceWithNestedMessages {
+  option (google.api.default_host) = "my.example.com";
+
+  rpc MyMethod(MethodRequest) returns (MethodResponse) {
+    option (google.api.method_signature) = "some_message";
+  }
+}
+
+message AnotherMessage {};
+
+message SomeMessage{
+  AnotherMessage another_message = 1;
+}
+
+message MethodRequest {
+  SomeMessage some_message = 1;
+}
+
+message MethodResponse {
+  google.protobuf.Value result = 1;
+}

tests/integration/goldens/asset/google/cloud/asset_v1/services/asset_service/async_client.py

@@ -433,7 +433,8 @@ async def sample_list_assets():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([parent])
+        flattened_params = [parent]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -652,7 +653,8 @@ async def sample_create_feed():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([parent])
+        flattened_params = [parent]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -762,7 +764,8 @@ async def sample_get_feed():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([name])
+        flattened_params = [name]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -867,7 +870,8 @@ async def sample_list_feeds():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([parent])
+        flattened_params = [parent]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -981,7 +985,8 @@ async def sample_update_feed():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([feed])
+        flattened_params = [feed]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -1076,7 +1081,8 @@ async def sample_delete_feed():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([name])
+        flattened_params = [name]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -1288,7 +1294,8 @@ async def sample_search_all_resources():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([scope, query, asset_types])
+        flattened_params = [scope, query, asset_types]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -1481,7 +1488,8 @@ async def sample_search_all_iam_policies():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([scope, query])
+        flattened_params = [scope, query]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -2015,7 +2023,8 @@ async def sample_create_saved_query():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([parent, saved_query, saved_query_id])
+        flattened_params = [parent, saved_query, saved_query_id]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -2125,7 +2134,8 @@ async def sample_get_saved_query():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([name])
+        flattened_params = [name]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -2237,7 +2247,8 @@ async def sample_list_saved_queries():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([parent])
+        flattened_params = [parent]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -2363,7 +2374,8 @@ async def sample_update_saved_query():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([saved_query, update_mask])
+        flattened_params = [saved_query, update_mask]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -2462,7 +2474,8 @@ async def sample_delete_saved_query():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([name])
+        flattened_params = [name]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -2680,7 +2693,8 @@ async def sample_analyze_org_policies():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([scope, constraint, filter])
+        flattened_params = [scope, constraint, filter]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -2832,7 +2846,8 @@ async def sample_analyze_org_policy_governed_containers():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([scope, constraint, filter])
+        flattened_params = [scope, constraint, filter]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")
@@ -3013,7 +3028,8 @@ async def sample_analyze_org_policy_governed_assets():
         # Create or coerce a protobuf request object.
         # - Quick check: If we got a request object, we should *not* have
         #   gotten any keyword arguments that map to the request.
-        has_flattened_params = any([scope, constraint, filter])
+        flattened_params = [scope, constraint, filter]
+        has_flattened_params = len([param for param in flattened_params if param is not None]) > 0
         if request is not None and has_flattened_params:
             raise ValueError("If the `request` argument is set, then none of "
                              "the individual field arguments should be set.")