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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

35 lines
1004 B
Python

"""Empty battles JSON array [] must load as an empty battle frame."""
import json
from pathlib import Path
import cli
def test_load_battles_empty_json_array(tmp_path):
path = tmp_path / "battles.json"
path.write_text("[]", encoding="utf-8")
df = cli._load_battles(str(path))
assert list(df.columns) == ["model_a", "model_b", "winner"]
assert len(df) == 0
def test_load_battles_nonempty_still_requires_columns(tmp_path):
path = tmp_path / "bad.json"
path.write_text(json.dumps([{"x": 1}]), encoding="utf-8")
try:
cli._load_battles(str(path))
assert False, "expected ValueError"
except ValueError as e:
assert "model_a" in str(e)
def test_load_battles_normal(tmp_path):
path = tmp_path / "ok.json"
path.write_text(
json.dumps([{"model_a": "A", "model_b": "B", "winner": "model_a"}]),
encoding="utf-8",
)
df = cli._load_battles(str(path))
assert len(df) == 1
assert df.iloc[0]["winner"] == "model_a"