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31 lines
1.3 KiB
Python
31 lines
1.3 KiB
Python
"""反向图片 provider 响应结构的离线契约测试。"""
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from __future__ import annotations
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import inspect
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import pytest
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from api import internal_reverse_image_search
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from backend.reverse_image import ReverseImageError, _is_empty
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def test_provider_empty_result_requires_declared_result_container() -> None:
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"""明确声明空候选列表才是合法空结果。"""
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assert _is_empty({"search_metadata": {"status": "Success"}, "visual_matches": []}) is True
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@pytest.mark.parametrize("response", ({}, {"search_metadata": {"status": "Success"}, "unexpected": []}, {"visual_matches": {}}))
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def test_provider_unknown_or_wrong_result_shape_is_invalid(response: dict[str, object]) -> None:
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"""完全未知结构或候选字段类型错误不能被当作空结果缓存。"""
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with pytest.raises(ReverseImageError) as error:
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_is_empty(response)
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assert error.value.code == "reverse_image_provider_invalid"
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def test_internal_reverse_image_request_id_and_digest_are_optional() -> None:
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"""内部 callback 兼容旧显式 ID，同时允许服务端生成权威身份。"""
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parameters = inspect.signature(internal_reverse_image_search).parameters
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assert parameters["request_id"].default.default is None
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assert parameters["input_digest"].default.default is None
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