168 lines
6.5 KiB
Python
168 lines
6.5 KiB
Python
"""Unit tests for src/agents/_tool_identity.py pure helpers.
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These cover the small, pure functions in `_tool_identity` that build /
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parse function-tool lookup keys and trace names. The module had no
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direct test file even though it's imported across the runner, tracing,
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and tool-output trimmer code paths.
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"""
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from __future__ import annotations
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import pytest
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from agents._tool_identity import (
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deserialize_function_tool_lookup_key,
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get_function_tool_lookup_key,
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get_tool_call_name,
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get_tool_call_namespace,
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get_tool_call_qualified_name,
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get_tool_call_trace_name,
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is_reserved_synthetic_tool_namespace,
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serialize_function_tool_lookup_key,
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tool_qualified_name,
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tool_trace_name,
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)
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from agents.exceptions import UserError
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class TestToolQualifiedName:
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def test_returns_name_when_no_namespace(self) -> None:
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assert tool_qualified_name("search") == "search"
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def test_returns_dotted_when_namespace_provided(self) -> None:
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assert tool_qualified_name("search", "tools") == "tools.search"
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def test_returns_none_for_empty_name(self) -> None:
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assert tool_qualified_name("") is None
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assert tool_qualified_name(None) is None
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def test_returns_none_for_non_string_name(self) -> None:
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assert tool_qualified_name(123) is None # type: ignore[arg-type]
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def test_ignores_empty_namespace(self) -> None:
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assert tool_qualified_name("search", "") == "search"
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assert tool_qualified_name("search", None) == "search"
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class TestIsReservedSyntheticToolNamespace:
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def test_true_when_name_equals_namespace(self) -> None:
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assert is_reserved_synthetic_tool_namespace("search", "search") is True
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def test_false_when_different(self) -> None:
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assert is_reserved_synthetic_tool_namespace("search", "tools") is False
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def test_false_when_either_missing(self) -> None:
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assert is_reserved_synthetic_tool_namespace("", "") is False
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assert is_reserved_synthetic_tool_namespace("search", None) is False
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assert is_reserved_synthetic_tool_namespace(None, "search") is False
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class TestToolTraceName:
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def test_collapses_synthetic_namespace(self) -> None:
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# When namespace == name, trace name is just the bare name.
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assert tool_trace_name("search", "search") == "search"
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def test_qualifies_real_namespace(self) -> None:
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assert tool_trace_name("search", "tools") == "tools.search"
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def test_returns_bare_when_no_namespace(self) -> None:
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assert tool_trace_name("search", None) == "search"
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class TestToolCallExtractors:
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def test_get_tool_call_name_from_dict(self) -> None:
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assert get_tool_call_name({"name": "search"}) == "search"
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def test_get_tool_call_name_from_object(self) -> None:
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class Call:
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name = "search"
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assert get_tool_call_name(Call()) == "search"
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def test_get_tool_call_name_returns_none_for_empty(self) -> None:
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assert get_tool_call_name({"name": ""}) is None
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assert get_tool_call_name({}) is None
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assert get_tool_call_name({"name": 123}) is None
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def test_get_tool_call_namespace(self) -> None:
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assert get_tool_call_namespace({"namespace": "tools"}) == "tools"
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assert get_tool_call_namespace({"namespace": ""}) is None
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assert get_tool_call_namespace({}) is None
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def test_get_tool_call_qualified_name_with_namespace(self) -> None:
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call = {"name": "search", "namespace": "tools"}
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assert get_tool_call_qualified_name(call) == "tools.search"
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def test_get_tool_call_qualified_name_without_namespace(self) -> None:
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assert get_tool_call_qualified_name({"name": "search"}) == "search"
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def test_get_tool_call_trace_name_collapses_synthetic_namespace(self) -> None:
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call = {"name": "search", "namespace": "search"}
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assert get_tool_call_trace_name(call) == "search"
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def test_get_tool_call_trace_name_qualifies_real_namespace(self) -> None:
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call = {"name": "search", "namespace": "tools"}
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assert get_tool_call_trace_name(call) == "tools.search"
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class TestGetFunctionToolLookupKey:
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def test_bare_when_no_namespace(self) -> None:
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assert get_function_tool_lookup_key("search") == ("bare", "search")
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def test_namespaced_when_namespace_present(self) -> None:
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assert get_function_tool_lookup_key("search", "tools") == (
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"namespaced",
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"tools",
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"search",
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)
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def test_deferred_top_level_when_namespace_equals_name(self) -> None:
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assert get_function_tool_lookup_key("search", "search") == (
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"deferred_top_level",
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"search",
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)
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def test_returns_none_for_empty_name(self) -> None:
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assert get_function_tool_lookup_key("") is None
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assert get_function_tool_lookup_key(None) is None
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class TestSerializeRoundTrip:
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@pytest.mark.parametrize(
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"lookup_key",
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[
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("bare", "search"),
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("namespaced", "tools", "search"),
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("deferred_top_level", "search"),
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],
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)
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def test_roundtrip(self, lookup_key) -> None:
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serialized = serialize_function_tool_lookup_key(lookup_key)
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assert serialized is not None
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assert deserialize_function_tool_lookup_key(serialized) == lookup_key
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def test_serialize_none_returns_none(self) -> None:
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assert serialize_function_tool_lookup_key(None) is None
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def test_deserialize_invalid_returns_none(self) -> None:
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assert deserialize_function_tool_lookup_key(None) is None
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assert deserialize_function_tool_lookup_key({}) is None
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assert deserialize_function_tool_lookup_key({"kind": "bare"}) is None
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assert deserialize_function_tool_lookup_key({"kind": "bare", "name": ""}) is None
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assert deserialize_function_tool_lookup_key({"kind": "unknown", "name": "x"}) is None
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# namespaced kind requires a non-empty namespace
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assert deserialize_function_tool_lookup_key({"kind": "namespaced", "name": "x"}) is None
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def test_validate_function_tool_namespace_shape_rejects_synthetic() -> None:
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"""The internal validator must refuse synthetic name==namespace shapes."""
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from agents._tool_identity import validate_function_tool_namespace_shape
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# Valid shapes don't raise.
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validate_function_tool_namespace_shape("search", "tools")
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validate_function_tool_namespace_shape("search", None)
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# The reserved synthetic shape (name == namespace) is rejected.
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with pytest.raises(UserError, match="reserves the synthetic namespace"):
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validate_function_tool_namespace_shape("search", "search")
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