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574512e 81ee30b 574512e 81ee30b 574512e 81ee30b 574512e 5cbb6ae | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 | """Unit tests for the simulation runner."""
from dataclasses import dataclass, field
from typing import Mapping
import pytest
from pydantic import SecretStr
from synthra.core.domain import Region, SimulationRequest, SimulationResult, Universe
from synthra.execution import (
HttpResponse,
SimulationFailedError,
SimulationResultMappingError,
SimulationRunner,
SimulationRunnerConfig,
SimulationTimeoutError,
WorldQuantCredentials,
WorldQuantExecutionClient,
WorldQuantExecutionConfig,
)
from synthra.execution.transport import JsonObject
@dataclass
class RecordedRequest:
"""Captured transport request."""
method: str
url: str
headers: Mapping[str, str]
json_body: JsonObject | None
timeout_seconds: float
@dataclass
class FakeTransport:
"""Queue-backed fake transport for offline runner tests."""
responses: list[HttpResponse]
requests: list[RecordedRequest] = field(default_factory=list)
def request(
self,
method: str,
url: str,
headers: Mapping[str, str],
json_body: JsonObject | None,
timeout_seconds: float,
) -> HttpResponse:
"""Record the request and return the next queued response."""
self.requests.append(
RecordedRequest(
method=method,
url=url,
headers=headers,
json_body=json_body,
timeout_seconds=timeout_seconds,
)
)
return self.responses.pop(0)
@dataclass
class FakeClock:
"""Controllable monotonic clock used to avoid real test sleeps."""
current: float = 0.0
sleeps: list[float] = field(default_factory=list)
def now(self) -> float:
"""Return the current fake monotonic time."""
return self.current
def sleep(self, seconds: float) -> None:
"""Advance fake time by the requested sleep interval."""
self.sleeps.append(seconds)
self.current += seconds
def make_client(transport: FakeTransport) -> WorldQuantExecutionClient:
"""Build a WorldQuant client with fake transport dependencies."""
creds = WorldQuantCredentials(username="user", password=SecretStr("secret"))
return WorldQuantExecutionClient(
credentials=creds,
config=WorldQuantExecutionConfig(api_base_url="https://brain.example.test"),
transport=transport,
)
def make_request() -> SimulationRequest:
"""Build a valid domain simulation request."""
return SimulationRequest(
expression="ts_rank(close, 20)",
region=Region.US,
universe=Universe.TOP3000,
)
def auth_response() -> HttpResponse:
"""Build a successful authentication response."""
return HttpResponse(
status_code=201,
headers={},
body=b'{"access_token":"session-token"}',
)
def submit_response() -> HttpResponse:
"""Build a successful simulation submission response."""
return HttpResponse(
status_code=202,
headers={"Location": "https://brain.example.test/simulations/SIM-1"},
body=b'{"id":"SIM-1","status":"running"}',
)
def test_runner_submits_polls_and_maps_completed_result() -> None:
"""Runner returns SimulationResult after a completed poll payload."""
transport = FakeTransport(
responses=[
auth_response(),
submit_response(),
HttpResponse(status_code=200, headers={}, body=b'{"status":"running"}'),
HttpResponse(
status_code=200,
headers={},
body=(
b'{"status":"complete","result":{"sharpe":1.2,'
b'"fitness":0.9,"margin":0.05,"turnover":0.3,'
b'"coverage":0.8}}'
),
),
]
)
clock = FakeClock()
runner = SimulationRunner(
client=make_client(transport),
config=SimulationRunnerConfig(polling_interval_seconds=0.5),
sleeper=clock.sleep,
monotonic_clock=clock.now,
)
result = runner.run(make_request())
assert isinstance(result, SimulationResult)
assert result.sharpe == 1.2
assert result.fitness == 0.9
assert result.margin == 0.05
assert result.turnover == 0.3
assert result.coverage == 0.8
assert clock.sleeps == [0.5]
assert transport.requests[-1].method == "GET"
def test_runner_applies_exponential_backoff_between_polls() -> None:
"""Runner increases poll intervals using the configured backoff multiplier."""
transport = FakeTransport(
responses=[
auth_response(),
submit_response(),
HttpResponse(status_code=200, headers={}, body=b'{"status":"running"}'),
HttpResponse(status_code=200, headers={}, body=b'{"status":"running"}'),
HttpResponse(
status_code=200,
headers={},
body=(
b'{"status":"completed","sharpe":1,"fitness":2,'
b'"margin":3,"turnover":4,"coverage":5}'
),
),
]
)
clock = FakeClock()
runner = SimulationRunner(
client=make_client(transport),
config=SimulationRunnerConfig(
polling_interval_seconds=0.5,
backoff_multiplier=2.0,
max_polling_interval_seconds=10.0,
),
sleeper=clock.sleep,
monotonic_clock=clock.now,
)
runner.run(make_request())
assert clock.sleeps == [0.5, 1.0]
def test_runner_times_out_when_simulation_never_completes() -> None:
"""Runner raises a typed timeout when polling exceeds the configured limit."""
transport = FakeTransport(
responses=[
auth_response(),
submit_response(),
HttpResponse(status_code=200, headers={}, body=b'{"status":"running"}'),
HttpResponse(status_code=200, headers={}, body=b'{"status":"running"}'),
HttpResponse(status_code=200, headers={}, body=b'{"status":"running"}'),
]
)
clock = FakeClock()
runner = SimulationRunner(
client=make_client(transport),
config=SimulationRunnerConfig(
polling_interval_seconds=0.5,
timeout_seconds=1.0,
backoff_multiplier=2.0,
),
sleeper=clock.sleep,
monotonic_clock=clock.now,
)
with pytest.raises(SimulationTimeoutError):
runner.run(make_request())
assert clock.sleeps == [0.5, 1.0]
def test_runner_raises_failed_error_for_terminal_failure() -> None:
"""Runner preserves platform failure details in a typed exception."""
transport = FakeTransport(
responses=[
auth_response(),
submit_response(),
HttpResponse(
status_code=200,
headers={},
body=b'{"status":"failed","message":"expression invalid"}',
),
]
)
runner = SimulationRunner(client=make_client(transport), sleeper=lambda _: None)
with pytest.raises(SimulationFailedError) as exc_info:
runner.run(make_request())
assert "expression invalid" in str(exc_info.value)
def test_runner_rejects_completed_payload_without_required_metrics() -> None:
"""Runner raises a mapping error when completed payloads lack metrics."""
transport = FakeTransport(
responses=[
auth_response(),
submit_response(),
HttpResponse(
status_code=200,
headers={},
body=b'{"status":"complete","result":{"sharpe":1.0}}',
),
]
)
runner = SimulationRunner(client=make_client(transport), sleeper=lambda _: None)
with pytest.raises(SimulationResultMappingError):
runner.run(make_request())
def test_runner_validates_expression_syntax() -> None:
"""SimulationRunner raises error if expression has mismatched parentheses."""
from synthra.execution import SimulationRunnerError
client = make_client(FakeTransport(responses=[]))
runner = SimulationRunner(client=client, sleeper=lambda _: None)
# Empty expression check directly
with pytest.raises(SimulationRunnerError) as exc:
runner._validate_expression("")
assert "Expression must not be empty" in str(exc.value)
# Mismatched parentheses
req2 = SimulationRequest(
expression="ts_rank(close, 20", region=Region.US, universe=Universe.TOP3000
)
with pytest.raises(SimulationRunnerError) as exc:
runner.run(req2)
assert "Mismatched parentheses" in str(exc.value)
def test_runner_persists_logs_to_database(tmp_path) -> None:
"""SimulationRunner records raw execution details to DB."""
from synthra.memory import DatabaseManager
db_file = tmp_path / "test_runner.db"
db_mgr = DatabaseManager(str(db_file))
transport = FakeTransport(
responses=[
auth_response(),
submit_response(),
HttpResponse(
status_code=200,
headers={},
body=(
b'{"status":"complete","result":{"sharpe":1.2,'
b'"fitness":0.9,"margin":0.05,"turnover":0.3,'
b'"coverage":0.8}}'
),
),
]
)
runner = SimulationRunner(
client=make_client(transport),
sleeper=lambda _: None,
db_manager=db_mgr,
)
req = make_request()
result = runner.run(req)
assert result.sharpe == 1.2
# Query simulation_logs to check persistence
with db_mgr.connection() as conn:
row = conn.execute("SELECT * FROM simulation_logs").fetchone()
assert row is not None
assert row["expression"] == "ts_rank(close, 20)"
assert row["status"] == "completed"
assert row["raw_request"] is not None
assert "USA" in row["raw_request"] or "US" in row["raw_request"]
assert row["raw_response"] is not None
assert "complete" in row["raw_response"]
assert row["normalized_metrics"] is not None
assert "1.2" in row["normalized_metrics"]
assert row["started_at"] is not None
assert row["finished_at"] is not None
assert isinstance(row["duration"], float)
|