[python] add test Missing the important statement for Datetime in Python binding generation (#18175)

* [python] add test on datetime response import

* [python] update sample

* [python] update sample

samples/openapi3/client/petstore/python-aiohttp/.openapi-generator/FILES

@@ -50,6 +50,7 @@ docs/FooGetDefaultResponse.md
 docs/FormatTest.md
 docs/HasOnlyReadOnly.md
 docs/HealthCheckResult.md
+docs/ImportTestDatetimeApi.md
 docs/InnerDictWithProperty.md
 docs/InputAllOf.md
 docs/IntOrString.md
@@ -109,6 +110,7 @@ petstore_api/api/another_fake_api.py
 petstore_api/api/default_api.py
 petstore_api/api/fake_api.py
 petstore_api/api/fake_classname_tags123_api.py
+petstore_api/api/import_test_datetime_api.py
 petstore_api/api/pet_api.py
 petstore_api/api/store_api.py
 petstore_api/api/user_api.py

samples/openapi3/client/petstore/python-aiohttp/README.md

@@ -123,6 +123,7 @@ Class | Method | HTTP request | Description
 *FakeApi* | [**test_query_parameter_collection_format**](docs/FakeApi.md#test_query_parameter_collection_format) | **PUT** /fake/test-query-parameters | 
 *FakeApi* | [**test_string_map_reference**](docs/FakeApi.md#test_string_map_reference) | **POST** /fake/stringMap-reference | test referenced string map
 *FakeClassnameTags123Api* | [**test_classname**](docs/FakeClassnameTags123Api.md#test_classname) | **PATCH** /fake_classname_test | To test class name in snake case
+*ImportTestDatetimeApi* | [**import_test_return_datetime**](docs/ImportTestDatetimeApi.md#import_test_return_datetime) | **GET** /import_test/return_datetime | test date time
 *PetApi* | [**add_pet**](docs/PetApi.md#add_pet) | **POST** /pet | Add a new pet to the store
 *PetApi* | [**delete_pet**](docs/PetApi.md#delete_pet) | **DELETE** /pet/{petId} | Deletes a pet
 *PetApi* | [**find_pets_by_status**](docs/PetApi.md#find_pets_by_status) | **GET** /pet/findByStatus | Finds Pets by status

samples/openapi3/client/petstore/python-aiohttp/docs/ImportTestDatetimeApi.md

@@ -0,0 +1,70 @@
+# petstore_api.ImportTestDatetimeApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+Method | HTTP request | Description
+------------- | ------------- | -------------
+[**import_test_return_datetime**](ImportTestDatetimeApi.md#import_test_return_datetime) | **GET** /import_test/return_datetime | test date time
+
+
+# **import_test_return_datetime**
+> datetime import_test_return_datetime()
+
+test date time
+
+### Example
+
+
+```python
+import petstore_api
+from petstore_api.rest import ApiException
+from pprint import pprint
+
+# Defining the host is optional and defaults to http://petstore.swagger.io:80/v2
+# See configuration.py for a list of all supported configuration parameters.
+configuration = petstore_api.Configuration(
+    host = "http://petstore.swagger.io:80/v2"
+)
+
+
+# Enter a context with an instance of the API client
+async with petstore_api.ApiClient(configuration) as api_client:
+    # Create an instance of the API class
+    api_instance = petstore_api.ImportTestDatetimeApi(api_client)
+
+    try:
+        # test date time
+        api_response = await api_instance.import_test_return_datetime()
+        print("The response of ImportTestDatetimeApi->import_test_return_datetime:\n")
+        pprint(api_response)
+    except Exception as e:
+        print("Exception when calling ImportTestDatetimeApi->import_test_return_datetime: %s\n" % e)
+```
+
+
+
+### Parameters
+
+This endpoint does not need any parameter.
+
+### Return type
+
+**datetime**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/json
+
+### HTTP response details
+
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+**200** | OK |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+

samples/openapi3/client/petstore/python-aiohttp/petstore_api/__init__.py

@@ -21,6 +21,7 @@ from petstore_api.api.another_fake_api import AnotherFakeApi
 from petstore_api.api.default_api import DefaultApi
 from petstore_api.api.fake_api import FakeApi
 from petstore_api.api.fake_classname_tags123_api import FakeClassnameTags123Api
+from petstore_api.api.import_test_datetime_api import ImportTestDatetimeApi
 from petstore_api.api.pet_api import PetApi
 from petstore_api.api.store_api import StoreApi
 from petstore_api.api.user_api import UserApi

samples/openapi3/client/petstore/python-aiohttp/petstore_api/api/__init__.py

@@ -5,6 +5,7 @@ from petstore_api.api.another_fake_api import AnotherFakeApi
 from petstore_api.api.default_api import DefaultApi
 from petstore_api.api.fake_api import FakeApi
 from petstore_api.api.fake_classname_tags123_api import FakeClassnameTags123Api
+from petstore_api.api.import_test_datetime_api import ImportTestDatetimeApi
 from petstore_api.api.pet_api import PetApi
 from petstore_api.api.store_api import StoreApi
 from petstore_api.api.user_api import UserApi

samples/openapi3/client/petstore/python-aiohttp/petstore_api/api/import_test_datetime_api.py

@@ -0,0 +1,275 @@
+# coding: utf-8
+
+"""
+    OpenAPI Petstore
+
+    This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+    The version of the OpenAPI document: 1.0.0
+    Generated by OpenAPI Generator (https://openapi-generator.tech)
+
+    Do not edit the class manually.
+"""  # noqa: E501
+
+import warnings
+from pydantic import validate_call, Field, StrictFloat, StrictStr, StrictInt
+from typing import Any, Dict, List, Optional, Tuple, Union
+from typing_extensions import Annotated
+
+from datetime import datetime
+
+from petstore_api.api_client import ApiClient, RequestSerialized
+from petstore_api.api_response import ApiResponse
+from petstore_api.rest import RESTResponseType
+
+
+class ImportTestDatetimeApi:
+    """NOTE: This class is auto generated by OpenAPI Generator
+    Ref: https://openapi-generator.tech
+
+    Do not edit the class manually.
+    """
+
+    def __init__(self, api_client=None) -> None:
+        if api_client is None:
+            api_client = ApiClient.get_default()
+        self.api_client = api_client
+
+
+    @validate_call
+    async def import_test_return_datetime(
+        self,
+        _request_timeout: Union[
+            None,
+            Annotated[StrictFloat, Field(gt=0)],
+            Tuple[
+                Annotated[StrictFloat, Field(gt=0)],
+                Annotated[StrictFloat, Field(gt=0)]
+            ]
+        ] = None,
+        _request_auth: Optional[Dict[StrictStr, Any]] = None,
+        _content_type: Optional[StrictStr] = None,
+        _headers: Optional[Dict[StrictStr, Any]] = None,
+        _host_index: Annotated[StrictInt, Field(ge=0, le=0)] = 0,
+    ) -> datetime:
+        """test date time
+
+
+        :param _request_timeout: timeout setting for this request. If one
+                                 number provided, it will be total request
+                                 timeout. It can also be a pair (tuple) of
+                                 (connection, read) timeouts.
+        :type _request_timeout: int, tuple(int, int), optional
+        :param _request_auth: set to override the auth_settings for an a single
+                              request; this effectively ignores the
+                              authentication in the spec for a single request.
+        :type _request_auth: dict, optional
+        :param _content_type: force content-type for the request.
+        :type _content_type: str, Optional
+        :param _headers: set to override the headers for a single
+                         request; this effectively ignores the headers
+                         in the spec for a single request.
+        :type _headers: dict, optional
+        :param _host_index: set to override the host_index for a single
+                            request; this effectively ignores the host_index
+                            in the spec for a single request.
+        :type _host_index: int, optional
+        :return: Returns the result object.
+        """ # noqa: E501
+
+        _param = self._import_test_return_datetime_serialize(
+            _request_auth=_request_auth,
+            _content_type=_content_type,
+            _headers=_headers,
+            _host_index=_host_index
+        )
+
+        _response_types_map: Dict[str, Optional[str]] = {
+            '200': "datetime",
+        }
+        response_data = await self.api_client.call_api(
+            *_param,
+            _request_timeout=_request_timeout
+        )
+        await response_data.read()
+        return self.api_client.response_deserialize(
+            response_data=response_data,
+            response_types_map=_response_types_map,
+        ).data
+
+
+    @validate_call
+    async def import_test_return_datetime_with_http_info(
+        self,
+        _request_timeout: Union[
+            None,
+            Annotated[StrictFloat, Field(gt=0)],
+            Tuple[
+                Annotated[StrictFloat, Field(gt=0)],
+                Annotated[StrictFloat, Field(gt=0)]
+            ]
+        ] = None,
+        _request_auth: Optional[Dict[StrictStr, Any]] = None,
+        _content_type: Optional[StrictStr] = None,
+        _headers: Optional[Dict[StrictStr, Any]] = None,
+        _host_index: Annotated[StrictInt, Field(ge=0, le=0)] = 0,
+    ) -> ApiResponse[datetime]:
+        """test date time
+
+
+        :param _request_timeout: timeout setting for this request. If one
+                                 number provided, it will be total request
+                                 timeout. It can also be a pair (tuple) of
+                                 (connection, read) timeouts.
+        :type _request_timeout: int, tuple(int, int), optional
+        :param _request_auth: set to override the auth_settings for an a single
+                              request; this effectively ignores the
+                              authentication in the spec for a single request.
+        :type _request_auth: dict, optional
+        :param _content_type: force content-type for the request.
+        :type _content_type: str, Optional
+        :param _headers: set to override the headers for a single
+                         request; this effectively ignores the headers
+                         in the spec for a single request.
+        :type _headers: dict, optional
+        :param _host_index: set to override the host_index for a single
+                            request; this effectively ignores the host_index
+                            in the spec for a single request.
+        :type _host_index: int, optional
+        :return: Returns the result object.
+        """ # noqa: E501
+
+        _param = self._import_test_return_datetime_serialize(
+            _request_auth=_request_auth,
+            _content_type=_content_type,
+            _headers=_headers,
+            _host_index=_host_index
+        )
+
+        _response_types_map: Dict[str, Optional[str]] = {
+            '200': "datetime",
+        }
+        response_data = await self.api_client.call_api(
+            *_param,
+            _request_timeout=_request_timeout
+        )
+        await response_data.read()
+        return self.api_client.response_deserialize(
+            response_data=response_data,
+            response_types_map=_response_types_map,
+        )
+
+
+    @validate_call
+    async def import_test_return_datetime_without_preload_content(
+        self,
+        _request_timeout: Union[
+            None,
+            Annotated[StrictFloat, Field(gt=0)],
+            Tuple[
+                Annotated[StrictFloat, Field(gt=0)],
+                Annotated[StrictFloat, Field(gt=0)]
+            ]
+        ] = None,
+        _request_auth: Optional[Dict[StrictStr, Any]] = None,
+        _content_type: Optional[StrictStr] = None,
+        _headers: Optional[Dict[StrictStr, Any]] = None,
+        _host_index: Annotated[StrictInt, Field(ge=0, le=0)] = 0,
+    ) -> RESTResponseType:
+        """test date time
+
+
+        :param _request_timeout: timeout setting for this request. If one
+                                 number provided, it will be total request
+                                 timeout. It can also be a pair (tuple) of
+                                 (connection, read) timeouts.
+        :type _request_timeout: int, tuple(int, int), optional
+        :param _request_auth: set to override the auth_settings for an a single
+                              request; this effectively ignores the
+                              authentication in the spec for a single request.
+        :type _request_auth: dict, optional
+        :param _content_type: force content-type for the request.
+        :type _content_type: str, Optional
+        :param _headers: set to override the headers for a single
+                         request; this effectively ignores the headers
+                         in the spec for a single request.
+        :type _headers: dict, optional
+        :param _host_index: set to override the host_index for a single
+                            request; this effectively ignores the host_index
+                            in the spec for a single request.
+        :type _host_index: int, optional
+        :return: Returns the result object.
+        """ # noqa: E501
+
+        _param = self._import_test_return_datetime_serialize(
+            _request_auth=_request_auth,
+            _content_type=_content_type,
+            _headers=_headers,
+            _host_index=_host_index
+        )
+
+        _response_types_map: Dict[str, Optional[str]] = {
+            '200': "datetime",
+        }
+        response_data = await self.api_client.call_api(
+            *_param,
+            _request_timeout=_request_timeout
+        )
+        return response_data.response
+
+
+    def _import_test_return_datetime_serialize(
+        self,
+        _request_auth,
+        _content_type,
+        _headers,
+        _host_index,
+    ) -> RequestSerialized:
+
+        _host = None
+
+        _collection_formats: Dict[str, str] = {
+        }
+
+        _path_params: Dict[str, str] = {}
+        _query_params: List[Tuple[str, str]] = []
+        _header_params: Dict[str, Optional[str]] = _headers or {}
+        _form_params: List[Tuple[str, str]] = []
+        _files: Dict[str, Union[str, bytes]] = {}
+        _body_params: Optional[bytes] = None
+
+        # process the path parameters
+        # process the query parameters
+        # process the header parameters
+        # process the form parameters
+        # process the body parameter
+
+
+        # set the HTTP header `Accept`
+        _header_params['Accept'] = self.api_client.select_header_accept(
+            [
+                'application/json'
+            ]
+        )
+
+
+        # authentication setting
+        _auth_settings: List[str] = [
+        ]
+
+        return self.api_client.param_serialize(
+            method='GET',
+            resource_path='/import_test/return_datetime',
+            path_params=_path_params,
+            query_params=_query_params,
+            header_params=_header_params,
+            body=_body_params,
+            post_params=_form_params,
+            files=_files,
+            auth_settings=_auth_settings,
+            collection_formats=_collection_formats,
+            _host=_host,
+            _request_auth=_request_auth
+        )
+
+

samples/openapi3/client/petstore/python-aiohttp/petstore_api/api/store_api.py

@@ -16,7 +16,8 @@ from pydantic import validate_call, Field, StrictFloat, StrictStr, StrictInt
 from typing import Any, Dict, List, Optional, Tuple, Union
 from typing_extensions import Annotated
 
-from pydantic import Field, StrictStr
+from pydantic import Field, StrictInt, StrictStr
+from typing import Dict
 from typing_extensions import Annotated
 from petstore_api.models.order import Order
 

samples/openapi3/client/petstore/python-aiohttp/test/test_import_test_datetime_api.py

@@ -0,0 +1,38 @@
+# coding: utf-8
+
+"""
+    OpenAPI Petstore
+
+    This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+    The version of the OpenAPI document: 1.0.0
+    Generated by OpenAPI Generator (https://openapi-generator.tech)
+
+    Do not edit the class manually.
+"""  # noqa: E501
+
+
+import unittest
+
+from petstore_api.api.import_test_datetime_api import ImportTestDatetimeApi
+
+
+class TestImportTestDatetimeApi(unittest.TestCase):
+    """ImportTestDatetimeApi unit test stubs"""
+
+    def setUp(self) -> None:
+        self.api = ImportTestDatetimeApi()
+
+    def tearDown(self) -> None:
+        pass
+
+    def test_import_test_return_datetime(self) -> None:
+        """Test case for import_test_return_datetime
+
+        test date time
+        """
+        pass
+
+
+if __name__ == '__main__':
+    unittest.main()