ddaf7e85c3
TraceLogger now tracks monotonic start times for starter actions (web_search, fetch_url, synthesis_start, start) and attaches a duration_ms field to the matching completer (web_search_complete, fetch_url_complete, synthesis_complete, synthesis_error). The terminal 'complete' step gets total_duration_sec instead. Pairings are tightly sequential in the agent code (each _execute_tool call runs start→end before returning), so a simple dict keyed by starter name suffices — no queueing needed. An unpaired completer leaves duration unset and does not crash. Durations flow into both the JSONL trace and the structlog operational log, so OpenSearch queries can filter / aggregate by step latency without cross-row joins. Verified end-to-end on a real shallow query: web_search 5,233 ms web_search 3,006 ms synthesis_complete 27,658 ms complete 47.547 s total Synthesis is by far the slowest step — visible at a glance for the first time. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
216 lines
8.2 KiB
Python
216 lines
8.2 KiB
Python
"""Tests for the trace logger."""
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import json
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import os
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import tempfile
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import uuid
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from researchers.web.trace import TraceLogger
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class TestTraceLogger:
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def _make_logger(self, tmp_dir, **kwargs):
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return TraceLogger(trace_dir=tmp_dir, **kwargs)
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def test_generates_trace_id(self):
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with tempfile.TemporaryDirectory() as tmp:
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logger = self._make_logger(tmp)
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# Should be a valid UUID
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uuid.UUID(logger.trace_id)
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def test_uses_provided_trace_id(self):
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with tempfile.TemporaryDirectory() as tmp:
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logger = self._make_logger(tmp, trace_id="my-custom-id")
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assert logger.trace_id == "my-custom-id"
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def test_creates_trace_dir(self):
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with tempfile.TemporaryDirectory() as tmp:
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nested = os.path.join(tmp, "deep", "nested", "dir")
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logger = TraceLogger(trace_dir=nested)
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assert os.path.isdir(nested)
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logger.close()
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def test_file_path(self):
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with tempfile.TemporaryDirectory() as tmp:
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logger = self._make_logger(tmp, trace_id="test-123")
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assert str(logger.file_path).endswith("test-123.jsonl")
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def test_log_step_creates_file(self):
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with tempfile.TemporaryDirectory() as tmp:
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with self._make_logger(tmp) as logger:
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logger.log_step("search", query="test")
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assert logger.file_path.exists()
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def test_log_step_increments_counter(self):
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with tempfile.TemporaryDirectory() as tmp:
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with self._make_logger(tmp) as logger:
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e1 = logger.log_step("search")
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e2 = logger.log_step("fetch")
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e3 = logger.log_step("synthesize")
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assert e1["step"] == 1
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assert e2["step"] == 2
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assert e3["step"] == 3
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def test_log_step_required_fields(self):
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with tempfile.TemporaryDirectory() as tmp:
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with self._make_logger(tmp) as logger:
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entry = logger.log_step("search", decision="relevant query")
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assert entry["action"] == "search"
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assert entry["decision"] == "relevant query"
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assert "timestamp" in entry
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assert "step" in entry
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def test_log_step_extra_kwargs(self):
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with tempfile.TemporaryDirectory() as tmp:
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with self._make_logger(tmp) as logger:
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entry = logger.log_step(
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"fetch_url",
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url="https://example.com",
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content_hash="sha256:abc123",
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content_length=5000,
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)
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assert entry["url"] == "https://example.com"
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assert entry["content_hash"] == "sha256:abc123"
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assert entry["content_length"] == 5000
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def test_entries_are_valid_jsonl(self):
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with tempfile.TemporaryDirectory() as tmp:
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with self._make_logger(tmp) as logger:
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logger.log_step("search", query="test")
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logger.log_step("fetch_url", url="https://example.com")
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logger.log_step("synthesize", decision="done")
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with open(logger.file_path) as f:
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lines = [l.strip() for l in f if l.strip()]
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assert len(lines) == 3
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for line in lines:
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parsed = json.loads(line)
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assert "step" in parsed
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assert "action" in parsed
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assert "timestamp" in parsed
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def test_read_entries(self):
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with tempfile.TemporaryDirectory() as tmp:
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with self._make_logger(tmp) as logger:
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logger.log_step("search", query="q1")
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logger.log_step("fetch_url", url="https://example.com")
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entries = logger.read_entries()
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assert len(entries) == 2
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assert entries[0]["action"] == "search"
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assert entries[0]["query"] == "q1"
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assert entries[1]["action"] == "fetch_url"
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def test_read_entries_empty_file(self):
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with tempfile.TemporaryDirectory() as tmp:
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logger = self._make_logger(tmp)
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entries = logger.read_entries()
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assert entries == []
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def test_context_manager_closes_file(self):
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with tempfile.TemporaryDirectory() as tmp:
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with self._make_logger(tmp) as logger:
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logger.log_step("search")
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assert logger._file is None
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def test_timestamp_format(self):
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with tempfile.TemporaryDirectory() as tmp:
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with self._make_logger(tmp) as logger:
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entry = logger.log_step("search")
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# ISO 8601 UTC format
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ts = entry["timestamp"]
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assert ts.endswith("Z")
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assert "T" in ts
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def test_flush_after_each_write(self):
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"""Entries should be readable immediately, not buffered."""
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with tempfile.TemporaryDirectory() as tmp:
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logger = self._make_logger(tmp)
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logger.log_step("search", query="test")
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# Read without closing
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entries = logger.read_entries()
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assert len(entries) == 1
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logger.close()
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def test_multiple_loggers_different_files(self):
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with tempfile.TemporaryDirectory() as tmp:
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with self._make_logger(tmp, trace_id="trace-a") as a:
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a.log_step("search", query="a")
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with self._make_logger(tmp, trace_id="trace-b") as b:
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b.log_step("search", query="b")
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assert a.read_entries()[0]["query"] == "a"
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assert b.read_entries()[0]["query"] == "b"
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assert a.file_path != b.file_path
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# ---------------------------------------------------------------------------
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# Step duration tracking (Issue #35)
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# ---------------------------------------------------------------------------
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import time as _time
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class TestStepDurations:
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def test_web_search_pair_records_duration_ms(self, tmp_path):
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logger = TraceLogger(trace_dir=str(tmp_path))
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logger.log_step("web_search", query="utah crops")
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_time.sleep(0.02)
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entry = logger.log_step("web_search_complete", result_count=5)
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logger.close()
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assert "duration_ms" in entry
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assert entry["duration_ms"] >= 15
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def test_fetch_url_pair_records_duration_ms(self, tmp_path):
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logger = TraceLogger(trace_dir=str(tmp_path))
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logger.log_step("fetch_url", url="https://example.com")
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_time.sleep(0.01)
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entry = logger.log_step("fetch_url_complete", success=True)
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logger.close()
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assert "duration_ms" in entry
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def test_synthesis_complete_records_duration_ms(self, tmp_path):
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logger = TraceLogger(trace_dir=str(tmp_path))
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logger.log_step("synthesis_start")
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_time.sleep(0.01)
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entry = logger.log_step("synthesis_complete")
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logger.close()
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assert "duration_ms" in entry
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def test_synthesis_error_also_records_duration_ms(self, tmp_path):
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logger = TraceLogger(trace_dir=str(tmp_path))
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logger.log_step("synthesis_start")
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_time.sleep(0.01)
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entry = logger.log_step("synthesis_error", parse_error="boom")
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logger.close()
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assert "duration_ms" in entry
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def test_complete_records_total_duration_sec(self, tmp_path):
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logger = TraceLogger(trace_dir=str(tmp_path))
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logger.log_step("start", question="q")
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_time.sleep(0.02)
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entry = logger.log_step("complete", confidence=0.9)
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logger.close()
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assert "total_duration_sec" in entry
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assert entry["total_duration_sec"] >= 0.015
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# Sec precision, not ms
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assert "duration_ms" not in entry
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def test_unpaired_completer_does_not_crash(self, tmp_path):
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logger = TraceLogger(trace_dir=str(tmp_path))
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# No matching web_search starter
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entry = logger.log_step("web_search_complete", result_count=0)
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logger.close()
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assert "duration_ms" not in entry
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def test_existing_fields_preserved(self, tmp_path):
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logger = TraceLogger(trace_dir=str(tmp_path))
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logger.log_step("web_search", query="x")
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entry = logger.log_step("web_search_complete", result_count=3, urls=["u1"])
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logger.close()
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assert entry["result_count"] == 3
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assert entry["urls"] == ["u1"]
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assert "step" in entry
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assert "timestamp" in entry
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