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microsoft--semantic-kernel/python/tests/unit/services/test_ai_service_selector.py
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Python

# Copyright (c) Microsoft. All rights reserved.
from pytest import raises
from semantic_kernel.connectors.ai.prompt_execution_settings import PromptExecutionSettings
from semantic_kernel.exceptions.kernel_exceptions import KernelServiceNotFoundError
from semantic_kernel.functions.function_result import FunctionResult
from semantic_kernel.functions.kernel_arguments import KernelArguments
from semantic_kernel.functions.kernel_function import KernelFunction
from semantic_kernel.functions.kernel_function_metadata import KernelFunctionMetadata
from semantic_kernel.kernel import Kernel
from semantic_kernel.services.ai_service_client_base import AIServiceClientBase
from semantic_kernel.services.ai_service_selector import AIServiceSelector
class CustomFunction(KernelFunction):
prompt_execution_settings: dict[str, PromptExecutionSettings] = {}
async def _invoke_internal(self, context) -> None:
context.result = FunctionResult(function=self.metadata, value="internal invoke passed")
async def _invoke_internal_stream(self, context) -> None:
context.result = FunctionResult(function=self.metadata, value="internal invoke stream passed")
def test_ai_service_selector():
service_selector = AIServiceSelector()
assert service_selector is not None
def test_select_ai_service_no_default(kernel_with_service: Kernel):
function = CustomFunction(
metadata=KernelFunctionMetadata(name="test", plugin_name="test", description="test", is_prompt=True),
prompt_execution_settings={},
)
kernel_with_service.add_function(plugin_name="test", function=function)
service_selector = kernel_with_service.ai_service_selector
service, settings = service_selector.select_ai_service(
kernel_with_service, function, KernelArguments(), type_=AIServiceClientBase
)
assert service is not None
assert service.service_id != "default"
assert settings is not None
def test_select_ai_service_no_default_default_types(kernel_with_service: Kernel):
function = CustomFunction(
metadata=KernelFunctionMetadata(name="test", plugin_name="test", description="test", is_prompt=True),
prompt_execution_settings={},
)
kernel_with_service.add_function(plugin_name="test", function=function)
service_selector = kernel_with_service.ai_service_selector
with raises(KernelServiceNotFoundError):
service_selector.select_ai_service(kernel_with_service, function, KernelArguments())
def test_select_ai_service_default_no_type(kernel_with_default_service: Kernel):
function = CustomFunction(
metadata=KernelFunctionMetadata(name="test", plugin_name="test", description="test", is_prompt=True),
prompt_execution_settings={},
)
kernel_with_default_service.add_function(plugin_name="test", function=function)
service_selector = kernel_with_default_service.ai_service_selector
with raises(KernelServiceNotFoundError):
service_selector.select_ai_service(kernel_with_default_service, function, KernelArguments())
def test_select_ai_service_default(kernel_with_default_service: Kernel):
function = CustomFunction(
metadata=KernelFunctionMetadata(name="test", plugin_name="test", description="test", is_prompt=True),
prompt_execution_settings={},
)
kernel_with_default_service.add_function(plugin_name="test", function=function)
service_selector = kernel_with_default_service.ai_service_selector
service, settings = service_selector.select_ai_service(
kernel_with_default_service, function, KernelArguments(), type_=AIServiceClientBase
)
assert service is not None
assert settings is not None
def test_select_ai_service_settings_through_arguments(kernel_with_service: Kernel):
function = CustomFunction(
metadata=KernelFunctionMetadata(name="test", plugin_name="test", description="test", is_prompt=True),
prompt_execution_settings={},
)
kernel_with_service.add_function(plugin_name="test", function=function)
service_selector = kernel_with_service.ai_service_selector
service, settings = service_selector.select_ai_service(
kernel_with_service,
function,
KernelArguments(settings={"service": PromptExecutionSettings()}),
type_=AIServiceClientBase,
)
assert service is not None
assert settings is not None
def test_select_ai_service_settings_through_function(kernel_with_service: Kernel):
function = CustomFunction(
metadata=KernelFunctionMetadata(name="test", plugin_name="test", description="test", is_prompt=True),
prompt_execution_settings={"service": PromptExecutionSettings()},
)
kernel_with_service.add_function(plugin_name="test", function=function)
service_selector = kernel_with_service.ai_service_selector
service, settings = service_selector.select_ai_service(
kernel_with_service, function, KernelArguments(), type_=AIServiceClientBase
)
assert service is not None
assert settings is not None