Files
StarPilot/openpilot/starpilot/ui/tests/test_camera_availability.py
T
firestar5683 a82935f326 User interfaces and Android Auto
Integrate onroad views, configurable widgets, local settings, steering-profile contracts, Bluetooth and Android Auto with their device and runtime services.

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Co-authored-by: prabhaavp <prabhaav@msu.edu>
2026-10-14 20:02:39 -05:00

60 lines
1.9 KiB
Python

import threading
import unittest
from openpilot.starpilot.ui.camera_availability import CameraAvailability
class TestCameraAvailability(unittest.TestCase):
def test_native_frames_freshness_throttle_and_background_publication(self):
now = [1_000_000_000]
written = []
published = threading.Event()
def write(*, clock):
written.append((clock(), threading.get_ident()))
published.set()
owner = CameraAvailability(clock=lambda: now[0], write=write)
self.addCleanup(owner.close)
self.assertFalse(owner.available())
owner.observe()
self.assertTrue(published.wait(1))
self.assertTrue(owner.available())
self.assertNotEqual(written[0][1], threading.get_ident())
for tick in range(1,100):
now[0] = 1_000_000_000 + tick * 10_000_000
owner.observe()
self.assertEqual(len(written), 1)
published.clear()
now[0] = 2_000_000_000
owner.observe()
self.assertTrue(published.wait(1))
self.assertEqual(len(written), 2)
now[0] += 500_000_001
self.assertFalse(owner.available())
now[0] = 1
self.assertFalse(owner.available())
def test_slow_writer_keeps_latest_bounded_frame_and_never_blocks_observer(self):
now = [1_000_000_000]
entered, release, done = threading.Event(), threading.Event(), threading.Event()
written = []
def write(*, clock):
stamp = clock()
if not written:
entered.set()
release.wait(1)
written.append(stamp)
if len(written) == 2:
done.set()
owner = CameraAvailability(clock=lambda: now[0], write=write)
self.addCleanup(owner.close)
owner.observe()
self.assertTrue(entered.wait(1))
now[0] = 2_000_000_000
owner.observe()
now[0] = 3_000_000_000
owner.observe()
self.assertEqual(owner.pending, 3_000_000_000)
release.set()
self.assertTrue(done.wait(1))
self.assertEqual(written, [1_000_000_000, 3_000_000_000])