Python pytest for ECU Testing

"""Demonstrates pytest features for ECU test automation."""
import pytest

# --- Custom markers for test categorisation ---
pytestmark = [pytest.mark.ecu_test]

@pytest.mark.smoke
@pytest.mark.req("SWR-AEB-001")
def test_aeb_activates_on_imminent_collision(ecu):
    """Smoke test: AEB must activate when TTC < 1.5s."""
    ecu.send_signal("VehicleSpeed", 50.0)
    ecu.send_signal("RadarTarget_Distance", 15.0)  # TTC ~1.08s
    import time; time.sleep(0.3)
    assert ecu.read_signal("AEB_State") == "ACTIVE"

@pytest.mark.hil
@pytest.mark.req("SWR-AEB-003")
@pytest.mark.timeout(30)  # pytest-timeout
def test_aeb_brake_pressure_hil(ecu):
    """HiL test: requires real braking system."""
    pytest.importorskip("dspace")  # skip if dspace not available
    ecu.send_signal("VehicleSpeed", 80.0)
    ecu.send_signal("RadarTarget_Distance", 28.0)
    import time; time.sleep(0.5)
    brake_pct = ecu.read_signal("AEB_BrakeRequest_pct")
    assert brake_pct >= 60, f"Expected >= 60%, got {brake_pct}%"

@pytest.mark.xfail(reason="AEB deactivation after 3s not yet implemented")
def test_aeb_deactivation_timeout(ecu):
    pass

[pytest]
markers =
    smoke: quick sanity check tests (deselect with -m "not smoke")
    hil: requires HiL hardware (deselect with -m "not hil")
    sil: SiL tests (can run in CI without hardware)
    asil_b: tests for ASIL-B requirements
    asil_d: tests for ASIL-D requirements
    req: requirement ID reference (metadata only)

addopts =
    --strict-markers
    --tb=short
    -v

testpaths = tests
python_files = test_*.py
python_classes = Test*
python_functions = test_*

log_cli = true
log_cli_level = INFO
log_format = %(asctime)s %(levelname)s %(message)s