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nousresearch--hermes-agent/tests/hermes_cli/test_oneshot_usage_file.py
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chore: import upstream snapshot with attribution
2026-07-13 11:56:03 +08:00

70 lines
2.5 KiB
Python

"""Tests for hermes -z --usage-file (per-run JSON usage report)."""
import json
from hermes_cli.oneshot import _write_usage_file
def _result(**overrides):
base = {
"estimated_cost_usd": 0.1234,
"cost_status": "estimated",
"cost_source": "pricing-table",
"input_tokens": 1000,
"output_tokens": 200,
"cache_read_tokens": 800,
"cache_write_tokens": 0,
"reasoning_tokens": 50,
"total_tokens": 1250,
"api_calls": 3,
"model": "openai/gpt-5.5",
"provider": "openrouter",
"session_id": "abc123",
"completed": True,
"failed": False,
}
base.update(overrides)
return base
class TestWriteUsageFile:
def test_writes_report_with_cost_and_tokens(self, tmp_path):
path = tmp_path / "usage.json"
_write_usage_file(str(path), _result())
report = json.loads(path.read_text())
assert report["estimated_cost_usd"] == 0.1234
assert report["input_tokens"] == 1000
assert report["output_tokens"] == 200
assert report["model"] == "openai/gpt-5.5"
assert report["api_calls"] == 3
assert report["failed"] is False
assert "failure" not in report
def test_none_path_is_noop(self, tmp_path):
# Must not raise and must not create a report file.
_write_usage_file(None, _result())
assert not (tmp_path / "usage.json").exists()
def test_failure_marks_failed_and_records_message(self, tmp_path):
path = tmp_path / "usage.json"
_write_usage_file(str(path), {}, failure="boom")
report = json.loads(path.read_text())
assert report["failed"] is True
assert report["failure"] == "boom"
# Missing result fields serialize as null, not KeyError.
assert report["estimated_cost_usd"] is None
def test_creates_parent_directories(self, tmp_path):
path = tmp_path / "nested" / "dir" / "usage.json"
_write_usage_file(str(path), _result())
assert json.loads(path.read_text())["total_tokens"] == 1250
def test_unwritable_path_never_raises(self):
# Root-owned path — the write must be swallowed, not raised.
_write_usage_file("/proc/definitely/not/writable/usage.json", _result())
def test_result_failed_flag_carries_through(self, tmp_path):
path = tmp_path / "usage.json"
_write_usage_file(str(path), _result(failed=True))
assert json.loads(path.read_text())["failed"] is True