core/tools+config: search through the DeepSeek Search API

This commit is contained in:
2026-10-17 16:52:31 +08:00
parent 7a4205a588
commit cb19652b2a
9 changed files with 82 additions and 332 deletions
@@ -1,115 +0,0 @@
"""DeepSeek server-side search backend (Anthropic-compatible endpoint)."""
from __future__ import annotations
import msgspec
import pytest
from plyngent.lmproto.anthropic.config import AnthropicConfig
from plyngent.lmproto.deepseek.anthropic.search import (
DeepseekSearchClient,
SearchHit,
hits_from_content,
)
def test_hits_from_content_dedupes_and_skips_noise() -> None:
content = [
{"type": "thinking", "thinking": "search"},
{
"type": "web_search_tool_result",
"tool_use_id": "call_1",
"content": [
{"type": "web_search_result", "title": "First", "url": "https://a.example/x"},
{"type": "web_search_result", "title": "First again", "url": "https://a.example/x"},
{"type": "web_search_result", "url": "https://b.example/y"},
{"type": "web_search_result", "title": "no url"},
],
},
{
"type": "web_search_tool_result",
"tool_use_id": "call_2",
"content": [{"type": "web_search_tool_result_error", "error_code": "max_uses_exceeded"}],
},
]
hits = hits_from_content(content)
assert hits == [
SearchHit(title="First", url="https://a.example/x"),
SearchHit(title="", url="https://b.example/y"),
]
assert hits_from_content("not a list") == []
class _Resp:
def __init__(self, status_code: int, body: bytes) -> None:
self.status_code = status_code
self.content = body
def _search_body() -> bytes:
return msgspec.json.encode(
{
"id": "msg_1",
"content": [
{
"type": "server_tool_use",
"id": "call_00_1",
"name": "web_search",
"input": {"query": "DeepSeek-V4"},
},
{
"type": "web_search_tool_result",
"tool_use_id": "call_00_1",
"content": [
{
"type": "web_search_result",
"title": "DeepSeek-V4 preview",
"url": "https://api-docs.deepseek.com/news/news260424/",
"encrypted_content": "opaque",
}
],
},
],
"usage": {"input_tokens": 9932, "output_tokens": 377},
}
)
@pytest.mark.asyncio
async def test_search_sends_the_hosted_tool_and_reads_its_hits(monkeypatch: pytest.MonkeyPatch) -> None:
client = DeepseekSearchClient(AnthropicConfig(api_key="sk-test", base_url="https://api.deepseek.com/anthropic"))
sent: dict[str, object] = {}
async def fake_post(path: str, **kwargs: object) -> _Resp:
sent["path"] = path
sent.update(kwargs)
return _Resp(200, _search_body())
monkeypatch.setattr(client.session, "post", fake_post)
hits = await client.search("DeepSeek-V4", model="deepseek-flash")
assert hits == [SearchHit(title="DeepSeek-V4 preview", url="https://api-docs.deepseek.com/news/news260424/")]
assert sent["path"] == "/messages"
assert sent["stream"] is False
data = sent["data"]
assert isinstance(data, bytes)
payload = msgspec.json.decode(data, type=dict[str, object])
assert payload["tools"] == [{"type": "web_search_20250305", "name": "web_search", "max_uses": 3}]
# A search turn stops as soon as it has searched; the answer is not needed.
assert payload["max_tokens"] == 512
assert payload["messages"] == [{"role": "user", "content": "DeepSeek-V4"}]
headers = sent["headers"]
assert isinstance(headers, dict)
assert headers["x-api-key"] == "sk-test"
@pytest.mark.asyncio
async def test_search_raises_with_the_endpoint_detail(monkeypatch: pytest.MonkeyPatch) -> None:
client = DeepseekSearchClient(AnthropicConfig(api_key="sk-test", base_url="https://api.deepseek.com/anthropic"))
async def fake_post(path: str, **kwargs: object) -> _Resp:
return _Resp(422, b'{"error": {"message": "tools[0]: unknown variant"}}')
monkeypatch.setattr(client.session, "post", fake_post)
with pytest.raises(RuntimeError, match="unknown variant"):
_ = await client.search("DeepSeek-V4", model="deepseek-flash")