222 lines
9.0 KiB
Python
222 lines
9.0 KiB
Python
"""Tests for the Kamil ADC TTY reader, config round-trip, and producer wiring."""
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from __future__ import annotations
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import json
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import os
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from pathlib import Path
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import pty
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import struct
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import subprocess
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import sys
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import tempfile
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import time
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import tty
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import unittest
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from unittest import mock
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from python_app.hardware_full.kamil_adc import KamilAdcService, KamilAdcTtyReader
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from python_app.hardware_full.kamil_adc.protocol import MAIN_MARKER, REFERENCE_MARKER
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from python_app.models.run_config_model import RunConfigModel
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from python_app.orchestration.process_supervisor import ProcessSupervisor
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def _boundary() -> bytes:
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return struct.pack("<HHHH", MAIN_MARKER, 0xFFFF, 0xFFFF, 0xFFFF)
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def _main(step: int, real: int, imag: int) -> bytes:
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return struct.pack("<HHhh", MAIN_MARKER, step, real, imag)
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def _reference(step: int, real: int, imag: int) -> bytes:
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return struct.pack("<HHhh", REFERENCE_MARKER, step, real, imag)
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class KamilAdcTtyReaderTest(unittest.TestCase):
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"""End-to-end tests over a PTY exercising the background reader thread."""
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def _open_pty_reader(self) -> tuple[int, int, KamilAdcTtyReader]:
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master_fd, slave_fd = pty.openpty()
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tty.setraw(slave_fd)
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reader = KamilAdcTtyReader(os.ttyname(slave_fd))
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reader.open()
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return master_fd, slave_fd, reader
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@staticmethod
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def _close(master_fd: int, slave_fd: int, reader: KamilAdcTtyReader) -> None:
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try:
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reader.close()
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finally:
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os.close(master_fd)
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os.close(slave_fd)
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def test_publishes_sweep_with_aligned_main_and_reference(self) -> None:
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master_fd, slave_fd, reader = self._open_pty_reader()
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try:
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os.write(
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master_fd,
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_boundary()
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+ _main(1, 10, -1) + _reference(1, 100, 5)
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+ _main(2, -20, 2) + _reference(2, 200, 6)
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+ _boundary(),
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)
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sweep = reader.read_sweep(timeout_s=1.0)
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self.assertEqual(sweep.steps.tolist(), [1, 2])
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self.assertEqual(sweep.main.tolist(), [complex(10, -1), complex(-20, 2)])
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self.assertEqual(sweep.reference.tolist(), [complex(100, 5), complex(200, 6)])
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finally:
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self._close(master_fd, slave_fd, reader)
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def test_variable_length_sweeps_are_allowed(self) -> None:
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"""Unlike the old format, sweep length may vary — no locking, just resample later."""
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master_fd, slave_fd, reader = self._open_pty_reader()
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try:
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# One complete sweep per write, read between, so delivery is deterministic
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# (the reader publishes only the latest, overwriting unread sweeps).
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os.write(master_fd, _boundary() + _main(1, 1, 0) + _reference(1, 9, 0) + _boundary())
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first = reader.read_sweep(timeout_s=1.0)
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self.assertEqual(first.steps.tolist(), [1])
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os.write(
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master_fd,
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_main(1, 2, 0) + _reference(1, 8, 0)
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+ _main(2, 3, 0) + _reference(2, 7, 0)
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+ _boundary(),
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)
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second = reader.read_sweep(timeout_s=1.0)
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self.assertEqual(second.steps.tolist(), [1, 2])
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finally:
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self._close(master_fd, slave_fd, reader)
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def test_only_latest_sweep_is_published(self) -> None:
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master_fd, slave_fd, reader = self._open_pty_reader()
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try:
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payload = (
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_boundary() + _main(1, 1, 0) + _reference(1, 1, 0)
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+ _boundary() + _main(1, 2, 0) + _reference(1, 2, 0)
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+ _boundary() + _main(1, 3, 0) + _reference(1, 3, 0)
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+ _boundary()
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)
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os.write(master_fd, payload)
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deadline = time.monotonic() + 1.0
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while time.monotonic() < deadline and reader.published_count < 3:
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time.sleep(0.005)
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self.assertGreaterEqual(reader.published_count, 3)
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sweep = reader.read_sweep(timeout_s=1.0)
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self.assertEqual(sweep.main.tolist(), [complex(3, 0)])
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finally:
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self._close(master_fd, slave_fd, reader)
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def test_corrupt_frame_fails_fast(self) -> None:
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master_fd, slave_fd, reader = self._open_pty_reader()
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try:
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corrupt = struct.pack("<HHhh", 0x001A, 1, 5, 5) # unknown marker
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os.write(master_fd, _boundary() + _main(1, 10, -1) + corrupt + _boundary())
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with self.assertRaises((ValueError, RuntimeError)):
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reader.read_sweep(timeout_s=1.0)
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finally:
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self._close(master_fd, slave_fd, reader)
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def test_no_completed_sweep_times_out(self) -> None:
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master_fd, slave_fd, reader = self._open_pty_reader()
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try:
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os.write(master_fd, _boundary() + _main(1, 10, -1) + _reference(1, 1, 0))
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with self.assertRaisesRegex(TimeoutError, "Timed out waiting for Kamil ADC sweep"):
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reader.read_sweep(timeout_s=0.1)
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finally:
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self._close(master_fd, slave_fd, reader)
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class KamilAdcConfigTest(unittest.TestCase):
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def test_config_round_trip_preserves_kamil_sections(self) -> None:
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payload = {
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"radar": {
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"model": "kamil_adc",
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"serial": "kamil_adc",
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"driver_mode": "native",
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"kamil_adc": {
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"project_dir": "",
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"executable_path": "build/bin/kamil_adc_collector",
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"tty_path": "/tmp/ttyADC_data",
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"args": ["profile:phase", "do8_freq_ref"],
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"env": {"ADC_ENV": "1"},
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"startup_timeout_s": 7.0,
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"sweep_timeout_s": 8.0,
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"stop_timeout_s": 3.0,
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"phase_calibration": {
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"phase0_rad": 1.5,
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"freq0_hz": 2_046_000_000.0,
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"phase1_rad": 301.0,
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"freq1_hz": 5_612_000_000.0,
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},
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"band": {
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"start_hz": 2_100_000_000.0,
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"stop_hz": 5_500_000_000.0,
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"points": 1024,
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},
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},
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"laser_control": {"enabled": True, "port": "/dev/ttyUSB0", "mode": "manual"},
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"sweep": {"start_hz": 1.0, "stop_hz": 2.0, "points": 2},
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},
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"switches": {"port1": {"positions": 1}, "port2": {"positions": 1}},
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}
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encoded = RunConfigModel.from_dict(payload).to_dict()
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kamil = encoded["radar"]["kamil_adc"]
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self.assertEqual(encoded["radar"]["model"], "kamil_adc")
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self.assertEqual(kamil["executable_path"], "build/bin/kamil_adc_collector")
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self.assertEqual(kamil["args"], ["profile:phase", "do8_freq_ref"])
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self.assertEqual(kamil["phase_calibration"]["phase0_rad"], 1.5)
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self.assertEqual(kamil["phase_calibration"]["freq1_hz"], 5_612_000_000.0)
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self.assertEqual(kamil["band"], {"start_hz": 2_100_000_000.0, "stop_hz": 5_500_000_000.0, "points": 1024})
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def test_close_never_raises_when_collector_refuses_to_die(self) -> None:
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"""close() must stay exception-safe even if a SIGKILL'd collector is not
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reaped within the grace window (e.g. wedged in USB D-state)."""
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with tempfile.TemporaryDirectory() as tmp_dir:
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config = RunConfigModel.from_dict(
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{
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"radar": {
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"model": "kamil_adc",
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"driver_mode": "native",
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"kamil_adc": {
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"project_dir": tmp_dir,
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"executable_path": "/bin/sh", # any real executable
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"tty_path": "/tmp/ttyADC_test",
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},
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},
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"switches": {"port1": {"positions": 1}, "port2": {"positions": 1}},
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}
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)
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service = KamilAdcService(config)
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class _UnreapableProcess:
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pid = 2_000_000_000 # implausible; killpg is patched out below anyway
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def poll(self) -> None:
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return None # always "alive"
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def wait(self, timeout: float | None = None) -> int:
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raise subprocess.TimeoutExpired(cmd="kamil_adc_collector", timeout=timeout)
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service._process = _UnreapableProcess() # type: ignore[assignment]
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with mock.patch("python_app.hardware_full.kamil_adc.service.os.killpg"):
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service.close() # must not raise
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def test_supervisor_selects_kamil_adc_producer(self) -> None:
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with tempfile.TemporaryDirectory() as tmp_dir:
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config_path = Path(tmp_dir) / "run_config.json"
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config_path.write_text(json.dumps({"radar": {"model": "kamil_adc"}}), encoding="utf-8")
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command = ProcessSupervisor(Path("/repo"))._acquisition_command(config_path)
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self.assertEqual(
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command,
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[sys.executable, "-m", "python_app.scripts.kamil_adc_raw_producer", "--config", str(config_path)],
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)
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if __name__ == "__main__":
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unittest.main()
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