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65 lines
2.5 KiB
Python
65 lines
2.5 KiB
Python
import pytest
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from fastmcp import FastMCP
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class TestRemovedServerInitKwargs:
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"""Test that removed server initialization keyword arguments raise TypeError."""
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@pytest.mark.parametrize(
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"kwarg, value, expected_message",
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[
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("host", "0.0.0.0", "run_http_async"),
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("port", 8080, "run_http_async"),
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("sse_path", "/custom-sse", "FASTMCP_SSE_PATH"),
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("message_path", "/custom-message", "FASTMCP_MESSAGE_PATH"),
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("streamable_http_path", "/custom-http", "run_http_async"),
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("json_response", True, "run_http_async"),
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("stateless_http", True, "run_http_async"),
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("debug", True, "FASTMCP_DEBUG"),
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("log_level", "DEBUG", "run_http_async"),
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("on_duplicate_tools", "warn", "on_duplicate="),
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("on_duplicate_resources", "error", "on_duplicate="),
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("on_duplicate_prompts", "replace", "on_duplicate="),
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("tool_serializer", lambda x: str(x), "ToolResult"),
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("include_tags", {"public"}, "server.enable"),
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("exclude_tags", {"internal"}, "server.disable"),
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(
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"tool_transformations",
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{"my_tool": {"name": "renamed"}},
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"server.add_transform",
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),
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],
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)
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def test_removed_kwarg_raises_type_error(self, kwarg, value, expected_message):
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with pytest.raises(TypeError, match=f"no longer accepts `{kwarg}`"):
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FastMCP("TestServer", **{kwarg: value})
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@pytest.mark.parametrize(
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"kwarg, value, expected_message",
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[
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("host", "0.0.0.0", "run_http_async"),
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("on_duplicate_tools", "warn", "on_duplicate="),
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("include_tags", {"public"}, "server.enable"),
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],
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)
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def test_removed_kwarg_error_includes_migration_hint(
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self, kwarg, value, expected_message
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):
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with pytest.raises(TypeError, match=expected_message):
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FastMCP("TestServer", **{kwarg: value})
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def test_unknown_kwarg_raises_standard_type_error(self):
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with pytest.raises(TypeError, match="unexpected keyword argument"):
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FastMCP("TestServer", **{"totally_fake_param": True}) # ty: ignore[invalid-argument-type]
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def test_valid_kwargs_still_work(self):
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server = FastMCP(
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name="TestServer",
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instructions="Test instructions",
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on_duplicate="warn",
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mask_error_details=True,
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)
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assert server.name == "TestServer"
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assert server.instructions == "Test instructions"
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