Files
roboco/tests/unit/services/test_usage.py
T
547fe444f2 [4865ff8b] Add WebSocket support to the usage dashboard (#115)
* [e7349d84] feat(dashboard): WS usage store, hook extension, status badge, and smooth animations (#111) (#113)

- Add src/store/usage-store.ts with typed UsageData interface, useUsageStore
  Zustand store, setUsageData, clearUsageData, and setWsState actions
- Export useUsageStore and UsageData from store/index.ts
- Extend use-rate-limit-websocket.ts: rename msg type to SystemWsMessage,
  add key_metrics field; add useEffect syncing wsState into useUsageStore;
  add USAGE_UPDATE/USAGE_SNAPSHOT handler dispatching to useUsageStore
  (RATE_LIMIT_HIT/LIFTED handling and onReconnect unchanged)
- Update CommandCenter to read key_metrics from useUsageStore when
  wsState === 'connected' and usageData non-null; falls back to
  useCeoOverview() (refetchInterval: 60000) when WS disconnected
- Update KeyMetricsPanel: add wsState prop, render connection status Badge
  matching AgentStreamViewer pattern (bg-green-500+Wifi / bg-yellow-500+
  Loader2 spin / bg-gray-500+WifiOff); add transition-all duration-300
  ease-in-out to metric value spans for smooth animated updates

Co-authored-by: Frontend Developer 1 <fe-dev-1@agents.roboco.dev>

* [c9745ee8] feat(events): add USAGE_UPDATE/SNAPSHOT event types, throttled publisher, /ws/system usage bridge (#112) (#114)

- Add EventType.USAGE_UPDATE='usage.update' and EventType.USAGE_SNAPSHOT='usage.snapshot'
  to the EventType StrEnum in roboco/models/events.py

- Create roboco/services/usage_events.py with _UsageThrottle class (5-second per-agent
  window using time.monotonic()) and publish_usage_update() / publish_usage_snapshot()
  helpers; lazy imports prevent circular dependency with roboco.events

- Extend orchestrator._sweep_token_snapshots() to publish USAGE_UPDATE per active agent
  (throttled) and a USAGE_SNAPSHOT aggregate after each sweep cycle; wrapped in
  contextlib.suppress so event errors never abort DB snapshot operations

- Add _handle_usage_event() to websocket_bridge.py following _handle_rate_limit_event
  pattern; register USAGE_UPDATE and USAGE_SNAPSHOT subscriptions in
  register_websocket_bridge_handlers() forwarding both to /ws/system via broadcast_system()

- Add unit tests: test_usage_events.py (throttle suppression, publish helpers) and
  test_websocket_bridge.py extended with _handle_usage_event coverage and updated
  registration assertion to include USAGE_UPDATE/USAGE_SNAPSHOT

Co-authored-by: Backend Developer 1 <be-dev-1@agents.roboco.dev>

* fix(usage-ws): reconcile the realtime token/cost contract end-to-end

The backend and frontend halves shipped mismatched contracts, so the usage
dashboard never received live data:

- The bridge forwarded the dotted event value ("usage.update") while the panel
  switched on "USAGE_UPDATE"; map both to the UPPER_SNAKE type string the same
  way the rate-limit handler does.
- The backend emitted token/cost telemetry but the frontend read a key_metrics
  field and fed the org-metrics panel. Rewire the frontend to consume the
  USAGE_SNAPSHOT token/cost payload into the "Token Usage & Cost" panel —
  WS-first with polling fallback and a connection-status badge — and revert the
  unrelated KeyMetricsPanel / CommandCenter wiring.

Backend cleanups in the same path:

- Replace the multi-argument publish helpers with typed UsageUpdate /
  UsageSnapshot payloads, removing the too-many-arguments lint suppressions.
- Extract _fetch_agent_tokens and _persist_token_snapshot from the token sweep,
  removing the too-many-statements suppression; label the live snapshot "live".

Hardening uncovered while fixing the above:

- _finalize_spawn_session pulled the full RAG stack into the
  session-finalization path through a transcript-parse import; move the pure
  parser into a dependency-light roboco.agent_sdk.transcript_usage module so
  finalization never imports the agent SDK server.
- Reduce _finalize_spawn_session complexity by extracting
  _resolve_final_token_usage, and widen the transcript-fallback guard so a read
  error can never abort finalization.

Also align KeyMetricsPanel with the metrics /dashboard/ceo actually returns: it
read velocity_24h / avg_time_to_done / active_agents, none of which
get_key_metrics() emits, so four of five rows rendered "—". Render
velocity_weekly, completion_rate, documentation_coverage and active_blockers.

* docs: note live usage push over /ws/system on the usage dashboard

* fix(usage): finalize on self-exit and de-duplicate transcript token counts

Two bugs left token capture broken even after the transcript-read fallback
landed — surfaced by a live agent run:

- Agents that self-exit (the normal i_am_idle -> container shutdown, exit 0)
  were never finalized. _finalize_spawn_session is only called from
  stop_agent(), but a graceful self-exit goes through _handle_stopped_container,
  which set the instance OFFLINE and returned without finalizing — leaving the
  spawn-session row open with zero tokens. Finalize there for both graceful
  (exit_reason="completed") and crash (exit_reason="crashed") exits.

- sum_transcript_usage double-counted. Claude Code logs one assistant message
  as several JSONL lines (one per content block — thinking / text / tool_use),
  each repeating the same message.usage, so summing every line roughly doubled
  the totals. De-duplicate by message.id.

Verified against a live agent transcript: the raw sum (12, 1068, 62502, 115828)
vs the de-duped (6, 516, 62502, 63336), which matches the session's
authoritative result.usage exactly.

* feat(usage): fall back to the transcript in the live token sweep

The 60s token sweep read only the agent SDK's /usage/status, which races
container teardown and reports zero mid-run — so live usage (and the
USAGE_SNAPSHOT pushed to /ws/system) stayed at zero for active agents.
Extract _resolve_active_tokens: try the SDK, then fall back to the durable
transcript (the same source finalize uses) so running agents report live.

* feat(usage): add GET /usage/sessions for the dashboard's Recent Sessions

The panel's Recent Sessions table was mock-only — the backend had no sessions
endpoint, so production always showed 'No sessions recorded yet'. Add
UsageService.get_recent_sessions + a /usage/sessions route returning the most
recent spawn-session rows (token totals + cost), and point the panel client
at it.

---------

Co-authored-by: Frontend Developer 1 <fe-dev-1@agents.roboco.dev>
Co-authored-by: Backend Developer 1 <be-dev-1@agents.roboco.dev>
Co-authored-by: Renn F <rennf93@users.noreply.github.com>
2026-06-11 23:19:50 +02:00

837 lines
30 KiB
Python

"""
Unit tests for roboco.services.usage — UsageService analytics methods.
These tests mock the SQLAlchemy AsyncSession.execute() boundary and
verify the arithmetic / logic of each analytics method:
- get_summary: trend_pct edge cases (prev=0, curr=0, both=0, prev>0)
- get_by_agent/team/model: pct_of_total sums to 100%
- get_projection: projected_monthly = avg_daily * 30
- get_cache_efficiency: cache_hit_rate and cost_saved arithmetic
"""
from __future__ import annotations
import datetime
from unittest.mock import AsyncMock, MagicMock
from uuid import UUID
import pytest
from roboco.services.usage import UsageService
# ---------------------------------------------------------------------------
# Named constants (ruff PLR2004: magic values in comparisons must be named).
# ---------------------------------------------------------------------------
# Tolerance for floating-point arithmetic comparisons.
_TOL = 0.001
# Tolerance for percentage-sum assertions (rounding in pct_of_total).
_PCT_TOL = 0.1
# token count helpers
_ZERO = 0
_M = 1_000_000
# Expected values for projection tests
_COST_7D = 70.0
_EXPECTED_AVG_DAILY = 10.0 # 70 / 7
_EXPECTED_MONTHLY = 300.0 # 10 * 30
_DAYS_BASIS = 7
# Expected values for cache efficiency tests
_CACHE_READ_TOKENS = 400
_INPUT_TOKENS = 600
_EXPECTED_HIT_RATE = 0.4 # 400 / (600 + 400)
_FULL_INPUT_PRICE = 3.00 # sonnet baseline USD/1M
_CACHE_READ_PRICE = 0.30
_EXPECTED_COST_SAVED = _FULL_INPUT_PRICE - _CACHE_READ_PRICE # = 2.70 per 1M
# Expected trend_pct values
_TREND_NONE = 0.0
_TREND_NEW = 100.0 # curr > 0, prev == 0
_TREND_DOUBLED = 200.0 # curr / prev = 3.0x → +200 %
_TREND_HALVED = -50.0 # curr / prev = 0.5x → -50 %
# Expected total_tokens when cache tokens are included
_TOTAL_WITH_CACHE = 300 # 100+100+50+50
# pct_of_total checks
_FULL_PCT = 100.0
# ---------------------------------------------------------------------------
# Helpers
# ---------------------------------------------------------------------------
def _make_row(**kwargs: object) -> MagicMock:
"""Return a MagicMock that mimics a SQLAlchemy Row with named attributes."""
row = MagicMock()
for k, v in kwargs.items():
setattr(row, k, v)
return row
def _result_one(row: MagicMock) -> MagicMock:
"""Return a mock execute() result whose .one() returns `row`."""
result = MagicMock()
result.one = MagicMock(return_value=row)
return result
def _result_fetchall(rows: list[MagicMock]) -> MagicMock:
"""Return a mock execute() result whose .fetchall() returns `rows`."""
result = MagicMock()
result.fetchall = MagicMock(return_value=rows)
return result
def _service_with_execute(*return_values: object) -> UsageService:
"""Build a UsageService whose session.execute() returns the provided
values in sequence (one per call)."""
session = MagicMock()
session.execute = AsyncMock(side_effect=list(return_values))
return UsageService(session)
# ---------------------------------------------------------------------------
# get_summary — trend_pct arithmetic
# ---------------------------------------------------------------------------
class TestGetSummaryTrendPct:
@pytest.mark.asyncio
async def test_both_zero_returns_zero_trend(self) -> None:
"""When current and previous totals are both 0, trend_pct must be 0.0."""
current_row = _make_row(
tokens_input=_ZERO,
tokens_output=_ZERO,
tokens_cache_read=_ZERO,
tokens_cache_write=_ZERO,
total_cost_usd=0.0,
)
prev_row = _make_row(total=_ZERO)
svc = _service_with_execute(_result_one(current_row), _result_one(prev_row))
result = await svc.get_summary("24h")
assert result["trend_pct"] == _TREND_NONE
@pytest.mark.asyncio
async def test_prev_zero_curr_positive_returns_100(self) -> None:
"""When prev period is 0 but current is positive, trend_pct = 100.0."""
current_row = _make_row(
tokens_input=500,
tokens_output=500,
tokens_cache_read=_ZERO,
tokens_cache_write=_ZERO,
total_cost_usd=0.01,
)
prev_row = _make_row(total=_ZERO)
svc = _service_with_execute(_result_one(current_row), _result_one(prev_row))
result = await svc.get_summary("24h")
assert result["trend_pct"] == _TREND_NEW
@pytest.mark.asyncio
async def test_positive_trend_calculation(self) -> None:
"""trend_pct = (current - previous) / previous * 100 when prev > 0.
current = 1500 input + 1500 output = 3000; prev = 1000
→ (3000 - 1000) / 1000 * 100 = 200.0
"""
current_row = _make_row(
tokens_input=1500,
tokens_output=1500,
tokens_cache_read=_ZERO,
tokens_cache_write=_ZERO,
total_cost_usd=0.1,
)
prev_row = _make_row(total=1000)
svc = _service_with_execute(_result_one(current_row), _result_one(prev_row))
result = await svc.get_summary("24h")
assert abs(result["trend_pct"] - _TREND_DOUBLED) < _TOL
@pytest.mark.asyncio
async def test_negative_trend_calculation(self) -> None:
"""Negative trend when usage drops.
current = 250 + 250 = 500; prev = 1000
→ (500 - 1000) / 1000 * 100 = -50.0
"""
current_row = _make_row(
tokens_input=250,
tokens_output=250,
tokens_cache_read=_ZERO,
tokens_cache_write=_ZERO,
total_cost_usd=0.01,
)
prev_row = _make_row(total=1000)
svc = _service_with_execute(_result_one(current_row), _result_one(prev_row))
result = await svc.get_summary("24h")
assert abs(result["trend_pct"] - _TREND_HALVED) < _TOL
@pytest.mark.asyncio
async def test_cache_tokens_included_in_total(self) -> None:
"""total_tokens includes cache_read and cache_write tokens."""
current_row = _make_row(
tokens_input=100,
tokens_output=100,
tokens_cache_read=50,
tokens_cache_write=50,
total_cost_usd=0.005,
)
prev_row = _make_row(total=_ZERO)
svc = _service_with_execute(_result_one(current_row), _result_one(prev_row))
result = await svc.get_summary("24h")
assert result["total_tokens"] == _TOTAL_WITH_CACHE
@pytest.mark.asyncio
async def test_summary_contains_required_fields(self) -> None:
"""Response dict must include all required summary fields."""
current_row = _make_row(
tokens_input=_ZERO,
tokens_output=_ZERO,
tokens_cache_read=_ZERO,
tokens_cache_write=_ZERO,
total_cost_usd=0.0,
)
prev_row = _make_row(total=_ZERO)
svc = _service_with_execute(_result_one(current_row), _result_one(prev_row))
result = await svc.get_summary("24h")
for field in ("tokens_input", "tokens_output", "total_cost_usd", "trend_pct"):
assert field in result, f"Missing field: {field}"
# ---------------------------------------------------------------------------
# get_time_series — total_tokens includes all 4 token types (summary consistency)
# ---------------------------------------------------------------------------
# Named constants for time-series tests
_TS_INPUT = 100
_TS_OUTPUT = 200
_TS_CACHE_READ = 50
_TS_CACHE_WRITE = 30
# total = 100 + 200 + 50 + 30 = 380
_TS_TOTAL_WITH_CACHE = 380
# Without cache tokens (the old wrong formula): 100 + 200 = 300
_TS_TOTAL_WITHOUT_CACHE = 300
class TestGetTimeSeries:
@pytest.mark.asyncio
async def test_total_tokens_includes_cache_read_and_write(self) -> None:
"""total_tokens in each time-series point must include cache tokens.
This is the time-series / summary consistency requirement: time-series
total_tokens must sum to the same value as get_summary()'s total_tokens
for the same period. The old implementation used ti + to_ (without
cache), which violated this constraint whenever cache tokens were non-zero.
"""
bucket_dt = datetime.datetime(2026, 6, 9, 12, 0, 0, tzinfo=datetime.UTC)
row = _make_row(
bucket=bucket_dt,
tokens_input=_TS_INPUT,
tokens_output=_TS_OUTPUT,
tokens_cache_read=_TS_CACHE_READ,
tokens_cache_write=_TS_CACHE_WRITE,
cost_usd=0.01,
)
svc = _service_with_execute(_result_fetchall([row]))
result = await svc.get_time_series("24h")
assert len(result) == 1
assert result[0]["total_tokens"] == _TS_TOTAL_WITH_CACHE
@pytest.mark.asyncio
async def test_total_tokens_without_cache_still_correct(self) -> None:
"""When cache tokens are zero, total_tokens == tokens_input + tokens_output."""
bucket_dt = datetime.datetime(2026, 6, 9, 12, 0, 0, tzinfo=datetime.UTC)
row = _make_row(
bucket=bucket_dt,
tokens_input=_TS_INPUT,
tokens_output=_TS_OUTPUT,
tokens_cache_read=_ZERO,
tokens_cache_write=_ZERO,
cost_usd=0.01,
)
svc = _service_with_execute(_result_fetchall([row]))
result = await svc.get_time_series("24h")
assert result[0]["total_tokens"] == _TS_INPUT + _TS_OUTPUT
@pytest.mark.asyncio
async def test_empty_result_returns_empty_list(self) -> None:
svc = _service_with_execute(_result_fetchall([]))
result = await svc.get_time_series("24h")
assert result == []
@pytest.mark.asyncio
async def test_point_contains_required_fields(self) -> None:
"""Each time-series point must have bucket, tokens_input, tokens_output,
total_tokens, and cost_usd fields."""
bucket_dt = datetime.datetime(2026, 6, 9, 12, 0, 0, tzinfo=datetime.UTC)
row = _make_row(
bucket=bucket_dt,
tokens_input=100,
tokens_output=100,
tokens_cache_read=_ZERO,
tokens_cache_write=_ZERO,
cost_usd=0.01,
)
svc = _service_with_execute(_result_fetchall([row]))
result = await svc.get_time_series("24h")
assert len(result) == 1
point = result[0]
for field in (
"bucket",
"tokens_input",
"tokens_output",
"total_tokens",
"cost_usd",
):
assert field in point, f"Missing field: {field}"
# ---------------------------------------------------------------------------
# get_by_agent — pct_of_total sums to 100%
# ---------------------------------------------------------------------------
class TestGetByAgent:
@pytest.mark.asyncio
async def test_pct_of_total_sums_to_100(self) -> None:
rows = [
_make_row(
agent_slug="be-dev-1",
tokens_input=600,
tokens_output=400,
tokens_cache_read=0,
tokens_cache_write=0,
cost_usd=0.05,
),
_make_row(
agent_slug="be-dev-2",
tokens_input=300,
tokens_output=200,
tokens_cache_read=0,
tokens_cache_write=0,
cost_usd=0.02,
),
_make_row(
agent_slug="be-qa",
tokens_input=100,
tokens_output=100,
tokens_cache_read=0,
tokens_cache_write=0,
cost_usd=0.01,
),
]
svc = _service_with_execute(_result_fetchall(rows))
result = await svc.get_by_agent("24h")
total_pct = sum(item["pct_of_total"] for item in result)
assert abs(total_pct - _FULL_PCT) < _PCT_TOL
@pytest.mark.asyncio
async def test_empty_result_returns_empty_list(self) -> None:
svc = _service_with_execute(_result_fetchall([]))
result = await svc.get_by_agent("24h")
assert result == []
@pytest.mark.asyncio
async def test_single_agent_has_100_pct(self) -> None:
rows = [
_make_row(
agent_slug="be-dev-1",
tokens_input=1000,
tokens_output=500,
tokens_cache_read=0,
tokens_cache_write=0,
cost_usd=0.1,
)
]
svc = _service_with_execute(_result_fetchall(rows))
result = await svc.get_by_agent("24h")
assert len(result) == 1
assert result[_ZERO]["pct_of_total"] == _FULL_PCT
@pytest.mark.asyncio
async def test_result_contains_agent_slug_field(self) -> None:
rows = [
_make_row(
agent_slug="be-dev-1",
tokens_input=100,
tokens_output=100,
tokens_cache_read=0,
tokens_cache_write=0,
cost_usd=0.01,
)
]
svc = _service_with_execute(_result_fetchall(rows))
result = await svc.get_by_agent()
assert result[_ZERO]["agent_slug"] == "be-dev-1"
@pytest.mark.asyncio
async def test_cache_tokens_included_in_total_tokens(self) -> None:
"""total_tokens must include cache_read and cache_write.
Without the fix, total would be 500+300=800 (input+output only).
With the fix, total = 500+300+100+100 = 1000.
"""
_cache_read = 100
_cache_write = 100
_expected_total = 500 + 300 + _cache_read + _cache_write # 1000
rows = [
_make_row(
agent_slug="be-dev-1",
tokens_input=500,
tokens_output=300,
tokens_cache_read=_cache_read,
tokens_cache_write=_cache_write,
cost_usd=0.05,
)
]
svc = _service_with_execute(_result_fetchall(rows))
result = await svc.get_by_agent("24h")
assert result[_ZERO]["total_tokens"] == _expected_total
@pytest.mark.asyncio
async def test_pct_of_total_sums_to_100_with_cache_tokens(self) -> None:
"""pct_of_total still sums to 100% when agents have cache tokens."""
rows = [
_make_row(
agent_slug="be-dev-1",
tokens_input=400,
tokens_output=200,
tokens_cache_read=150,
tokens_cache_write=50,
cost_usd=0.05,
),
_make_row(
agent_slug="be-dev-2",
tokens_input=200,
tokens_output=100,
tokens_cache_read=75,
tokens_cache_write=25,
cost_usd=0.02,
),
]
svc = _service_with_execute(_result_fetchall(rows))
result = await svc.get_by_agent("24h")
total_pct = sum(item["pct_of_total"] for item in result)
assert abs(total_pct - _FULL_PCT) < _PCT_TOL
# ---------------------------------------------------------------------------
# get_by_team — pct_of_total sums to 100%
# ---------------------------------------------------------------------------
class TestGetByTeam:
@pytest.mark.asyncio
async def test_pct_of_total_sums_to_100(self) -> None:
rows = [
_make_row(
team="backend",
tokens_input=700,
tokens_output=300,
tokens_cache_read=0,
tokens_cache_write=0,
cost_usd=0.05,
),
_make_row(
team="frontend",
tokens_input=200,
tokens_output=200,
tokens_cache_read=0,
tokens_cache_write=0,
cost_usd=0.02,
),
_make_row(
team="uxui",
tokens_input=100,
tokens_output=100,
tokens_cache_read=0,
tokens_cache_write=0,
cost_usd=0.01,
),
]
svc = _service_with_execute(_result_fetchall(rows))
result = await svc.get_by_team("24h")
total_pct = sum(item["pct_of_total"] for item in result)
assert abs(total_pct - _FULL_PCT) < _PCT_TOL
@pytest.mark.asyncio
async def test_result_contains_team_field(self) -> None:
rows = [
_make_row(
team="backend",
tokens_input=100,
tokens_output=100,
tokens_cache_read=0,
tokens_cache_write=0,
cost_usd=0.01,
)
]
svc = _service_with_execute(_result_fetchall(rows))
result = await svc.get_by_team()
assert result[_ZERO]["team"] == "backend"
@pytest.mark.asyncio
async def test_cache_tokens_included_in_total_tokens(self) -> None:
"""total_tokens must include cache_read and cache_write."""
_cache_read = 200
_cache_write = 100
_expected_total = 700 + 300 + _cache_read + _cache_write # 1300
rows = [
_make_row(
team="backend",
tokens_input=700,
tokens_output=300,
tokens_cache_read=_cache_read,
tokens_cache_write=_cache_write,
cost_usd=0.05,
)
]
svc = _service_with_execute(_result_fetchall(rows))
result = await svc.get_by_team("24h")
assert result[_ZERO]["total_tokens"] == _expected_total
@pytest.mark.asyncio
async def test_pct_of_total_sums_to_100_with_cache_tokens(self) -> None:
"""pct_of_total still sums to 100% when teams have cache tokens."""
rows = [
_make_row(
team="backend",
tokens_input=600,
tokens_output=200,
tokens_cache_read=120,
tokens_cache_write=80,
cost_usd=0.05,
),
_make_row(
team="frontend",
tokens_input=300,
tokens_output=100,
tokens_cache_read=60,
tokens_cache_write=40,
cost_usd=0.02,
),
]
svc = _service_with_execute(_result_fetchall(rows))
result = await svc.get_by_team("24h")
total_pct = sum(item["pct_of_total"] for item in result)
assert abs(total_pct - _FULL_PCT) < _PCT_TOL
# ---------------------------------------------------------------------------
# get_by_model — pct_of_total sums to 100%
# ---------------------------------------------------------------------------
class TestGetByModel:
@pytest.mark.asyncio
async def test_pct_of_total_sums_to_100(self) -> None:
rows = [
_make_row(
model="claude-sonnet-4-6",
tokens_input=600,
tokens_output=600,
tokens_cache_read=0,
tokens_cache_write=0,
cost_usd=0.1,
),
_make_row(
model="claude-haiku-4-5",
tokens_input=300,
tokens_output=300,
tokens_cache_read=0,
tokens_cache_write=0,
cost_usd=0.02,
),
_make_row(
model="claude-opus-4-5",
tokens_input=100,
tokens_output=100,
tokens_cache_read=0,
tokens_cache_write=0,
cost_usd=0.04,
),
]
svc = _service_with_execute(_result_fetchall(rows))
result = await svc.get_by_model("24h")
total_pct = sum(item["pct_of_total"] for item in result)
assert abs(total_pct - _FULL_PCT) < _PCT_TOL
@pytest.mark.asyncio
async def test_result_contains_model_field(self) -> None:
rows = [
_make_row(
model="claude-sonnet-4-6",
tokens_input=100,
tokens_output=100,
tokens_cache_read=0,
tokens_cache_write=0,
cost_usd=0.01,
)
]
svc = _service_with_execute(_result_fetchall(rows))
result = await svc.get_by_model()
assert result[_ZERO]["model"] == "claude-sonnet-4-6"
@pytest.mark.asyncio
async def test_cache_tokens_included_in_total_tokens(self) -> None:
"""total_tokens must include cache_read and cache_write."""
_cache_read = 300
_cache_write = 100
_expected_total = 600 + 600 + _cache_read + _cache_write # 1600
rows = [
_make_row(
model="claude-sonnet-4-6",
tokens_input=600,
tokens_output=600,
tokens_cache_read=_cache_read,
tokens_cache_write=_cache_write,
cost_usd=0.1,
)
]
svc = _service_with_execute(_result_fetchall(rows))
result = await svc.get_by_model("24h")
assert result[_ZERO]["total_tokens"] == _expected_total
@pytest.mark.asyncio
async def test_pct_of_total_sums_to_100_with_cache_tokens(self) -> None:
"""pct_of_total still sums to 100% when models have cache tokens."""
rows = [
_make_row(
model="claude-sonnet-4-6",
tokens_input=500,
tokens_output=500,
tokens_cache_read=200,
tokens_cache_write=100,
cost_usd=0.1,
),
_make_row(
model="claude-haiku-4-5",
tokens_input=250,
tokens_output=250,
tokens_cache_read=100,
tokens_cache_write=50,
cost_usd=0.02,
),
]
svc = _service_with_execute(_result_fetchall(rows))
result = await svc.get_by_model("24h")
total_pct = sum(item["pct_of_total"] for item in result)
assert abs(total_pct - _FULL_PCT) < _PCT_TOL
# ---------------------------------------------------------------------------
# get_projection — formula: projected_monthly = (total_7d / 7) * 30
# ---------------------------------------------------------------------------
class TestGetProjection:
@pytest.mark.asyncio
async def test_projection_formula_30_day_extrapolation(self) -> None:
"""projected_monthly_cost_usd = (total_cost_7d / 7) * 30."""
row = _make_row(total_cost_7d=_COST_7D, session_count=10)
svc = _service_with_execute(_result_one(row))
result = await svc.get_projection()
assert abs(result["projected_monthly_cost_usd"] - _EXPECTED_MONTHLY) < _TOL
@pytest.mark.asyncio
async def test_zero_cost_7d_gives_zero_projection(self) -> None:
row = _make_row(total_cost_7d=0.0, session_count=_ZERO)
svc = _service_with_execute(_result_one(row))
result = await svc.get_projection()
assert result["projected_monthly_cost_usd"] == 0.0
@pytest.mark.asyncio
async def test_avg_daily_cost_equals_total_over_7(self) -> None:
"""avg_daily = total_7d / 7."""
row = _make_row(total_cost_7d=21.0, session_count=5)
svc = _service_with_execute(_result_one(row))
result = await svc.get_projection()
# 21 / 7 = 3.0 avg daily cost
_avg_daily_21 = 3.0
assert abs(result["avg_daily_cost_usd"] - _avg_daily_21) < _TOL
@pytest.mark.asyncio
async def test_projection_contains_required_fields(self) -> None:
row = _make_row(total_cost_7d=7.0, session_count=3)
svc = _service_with_execute(_result_one(row))
result = await svc.get_projection()
for field in (
"total_cost_7d",
"avg_daily_cost_usd",
"projected_monthly_cost_usd",
"basis_days",
):
assert field in result, f"Missing field: {field}"
assert result["basis_days"] == _DAYS_BASIS
# ---------------------------------------------------------------------------
# get_cache_efficiency — hit rate and cost_saved arithmetic
# ---------------------------------------------------------------------------
class TestGetCacheEfficiency:
@pytest.mark.asyncio
async def test_cache_hit_rate_formula(self) -> None:
"""cache_hit_rate = cache_read / (input + cache_read).
400 cache reads out of 400+600 total = 0.4
"""
row = _make_row(
tokens_input=_INPUT_TOKENS,
tokens_output=_ZERO,
tokens_cache_read=_CACHE_READ_TOKENS,
tokens_cache_write=_ZERO,
)
svc = _service_with_execute(_result_one(row))
result = await svc.get_cache_efficiency("24h")
assert abs(result["cache_hit_rate"] - _EXPECTED_HIT_RATE) < _TOL
@pytest.mark.asyncio
async def test_zero_input_tokens_gives_zero_hit_rate(self) -> None:
"""When no input or cache_read tokens, hit rate is 0.0."""
row = _make_row(
tokens_input=_ZERO,
tokens_output=_ZERO,
tokens_cache_read=_ZERO,
tokens_cache_write=_ZERO,
)
svc = _service_with_execute(_result_one(row))
result = await svc.get_cache_efficiency("24h")
assert result["cache_hit_rate"] == 0.0
@pytest.mark.asyncio
async def test_full_cache_hit_gives_rate_of_1(self) -> None:
"""When all input-like tokens are cache reads, hit rate = 1.0."""
_full_rate = 1.0
row = _make_row(
tokens_input=_ZERO,
tokens_output=_ZERO,
tokens_cache_read=1000,
tokens_cache_write=_ZERO,
)
svc = _service_with_execute(_result_one(row))
result = await svc.get_cache_efficiency("24h")
assert abs(result["cache_hit_rate"] - _full_rate) < _TOL
@pytest.mark.asyncio
async def test_cost_saved_arithmetic(self) -> None:
"""cost_saved = cache_read * (full_input_price - cache_read_price) / 1M.
Sonnet baseline: full=$3.00/1M, cache_read=$0.30/1M.
For 1M cache-read tokens: saved = 3.00 - 0.30 = 2.70.
"""
row = _make_row(
tokens_input=_ZERO,
tokens_output=_ZERO,
tokens_cache_read=_M,
tokens_cache_write=_ZERO,
)
svc = _service_with_execute(_result_one(row))
result = await svc.get_cache_efficiency("24h")
assert abs(result["cost_saved_by_cache_usd"] - _EXPECTED_COST_SAVED) < _TOL
@pytest.mark.asyncio
async def test_zero_cache_reads_gives_zero_savings(self) -> None:
row = _make_row(
tokens_input=1000,
tokens_output=500,
tokens_cache_read=_ZERO,
tokens_cache_write=_ZERO,
)
svc = _service_with_execute(_result_one(row))
result = await svc.get_cache_efficiency("24h")
assert result["cost_saved_by_cache_usd"] == 0.0
@pytest.mark.asyncio
async def test_cache_efficiency_contains_required_fields(self) -> None:
row = _make_row(
tokens_input=_ZERO,
tokens_output=_ZERO,
tokens_cache_read=_ZERO,
tokens_cache_write=_ZERO,
)
svc = _service_with_execute(_result_one(row))
result = await svc.get_cache_efficiency("24h")
for field in ("cache_hit_rate", "cost_saved_by_cache_usd"):
assert field in result, f"Missing field: {field}"
# ---------------------------------------------------------------------------
# get_recent_sessions — maps spawn-session rows to the dashboard shape
# ---------------------------------------------------------------------------
class TestGetRecentSessions:
@pytest.mark.asyncio
async def test_shapes_rows(self) -> None:
"""Rows are mapped to id/agent/model/tokens/cache/total/cost fields."""
exp_in, exp_out = 6, 514
exp_cr, exp_cw = 111_032, 14_881
exp_cost = 0.1614
exp_count = 1
sid = UUID("12345678-1234-5678-1234-567812345678")
row = MagicMock()
row.id = sid
row.agent_slug = "product-owner"
row.model = "claude-opus-4-6"
row.started_at = datetime.datetime(2026, 6, 11, 20, 41, tzinfo=datetime.UTC)
row.ended_at = datetime.datetime(2026, 6, 11, 20, 42, tzinfo=datetime.UTC)
row.tokens_input = exp_in
row.tokens_output = exp_out
row.tokens_cache_read = exp_cr
row.tokens_cache_write = exp_cw
row.estimated_cost_usd = exp_cost
scalars = MagicMock()
scalars.all = MagicMock(return_value=[row])
result = MagicMock()
result.scalars = MagicMock(return_value=scalars)
svc = _service_with_execute(result)
out = await svc.get_recent_sessions(limit=10)
assert len(out) == exp_count
s = out[0]
assert s["id"] == str(sid)
assert s["agent_slug"] == "product-owner"
assert s["model"] == "claude-opus-4-6"
assert s["tokens_input"] == exp_in
assert s["tokens_output"] == exp_out
assert s["tokens_cache"] == exp_cr + exp_cw
assert s["total_tokens"] == exp_in + exp_out + exp_cr + exp_cw
assert s["cost"] == pytest.approx(exp_cost)
assert s["ended_at"] is not None
@pytest.mark.asyncio
async def test_open_session_has_null_ended_at(self) -> None:
"""A still-running session (ended_at None) serializes ended_at as None."""
row = MagicMock()
row.id = "00000000-0000-0000-0000-000000000001"
row.agent_slug = "main-pm"
row.model = "sonnet"
row.started_at = datetime.datetime(2026, 6, 11, 20, 0, tzinfo=datetime.UTC)
row.ended_at = None
row.tokens_input = _ZERO
row.tokens_output = _ZERO
row.tokens_cache_read = _ZERO
row.tokens_cache_write = _ZERO
row.estimated_cost_usd = None
scalars = MagicMock()
scalars.all = MagicMock(return_value=[row])
result = MagicMock()
result.scalars = MagicMock(return_value=scalars)
svc = _service_with_execute(result)
out = await svc.get_recent_sessions()
assert out[0]["ended_at"] is None
assert out[0]["cost"] == _ZERO