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ai-agent-book 精选快照(<2MB 代码与文档,来自 github.com/bojieli/ai-agent-book)
2026-08-20 13:12:50 +00:00

75 lines
2.6 KiB
Python

from __future__ import annotations
import json
import copy
import sys
from pathlib import Path
from types import SimpleNamespace
sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
from agent import GeneratedAgent
class FakeCompletions:
def __init__(self):
self.calls = []
def create(self, **kwargs):
self.calls.append(copy.deepcopy(kwargs))
if len(self.calls) == 1:
tool_call = SimpleNamespace(
id="call-1",
function=SimpleNamespace(
name="lookup_domain_fact",
arguments=json.dumps({"query": "purpose"}),
),
)
message = SimpleNamespace(content=None, tool_calls=[tool_call])
else:
assert kwargs["messages"][-1]["role"] == "tool"
message = SimpleNamespace(content="Verified answer", tool_calls=[])
usage = SimpleNamespace(prompt_tokens=10, completion_tokens=3)
return SimpleNamespace(choices=[SimpleNamespace(message=message)], usage=usage)
def test_standard_tool_loop_keeps_assistant_call_and_tool_result():
completions = FakeCompletions()
client = SimpleNamespace(chat=SimpleNamespace(completions=completions))
result = GeneratedAgent(model="test-model", client=client).run("What is your purpose?")
assert result["ok"] is True
assert result["answer"] == "Verified answer"
second_messages = completions.calls[1]["messages"]
assert second_messages[-2]["role"] == "assistant"
assert second_messages[-2]["tool_calls"][0]["id"] == "call-1"
assert second_messages[-1]["role"] == "tool"
assert second_messages[-1]["tool_call_id"] == "call-1"
assert result["messages"][:-1] == second_messages
assert result["messages"][-1] == {
"role": "assistant",
"content": "Verified answer",
}
assert result["usage"] == {
"prompt_tokens": 20,
"cached_prompt_tokens": 0,
"completion_tokens": 6,
"requests": 2,
}
def test_prior_multiturn_history_is_preserved_in_order():
completions = FakeCompletions()
client = SimpleNamespace(chat=SimpleNamespace(completions=completions))
history = [
{"role": "user", "content": "Remember owner Mei-Lin."},
{"role": "assistant", "content": "Owner Mei-Lin retained."},
]
result = GeneratedAgent(model="test-model", client=client).run(
"Evaluate the release.", history=history
)
first_messages = completions.calls[0]["messages"]
assert first_messages[1:3] == history
assert result["messages"][1:3] == history