Merge branch 'main' of https://github.com/ChuckBuilds/LEDMatrix into fix/plugin-update-keeps-local-files

# Conflicts:
#	test/test_on_demand_live_and_restore.py
This commit is contained in:
Chuck
2026-10-04 15:53:23 -04:00
16 changed files with 1190 additions and 74 deletions
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@@ -0,0 +1,326 @@
"""Four web answers that disagreed with the rig they describe (found on ledpi).
1. POST /config/schedule refused the schedule GET returns on a fresh install
(config.template.json: per-day, every day off, schedule disabled) with
"At least one day must be enabled", as did /config/dim-schedule. A
disabled schedule needs no enabled day.
2. A brightness-only POST /config/main answered ``restart_required: true``,
though the display applies brightness live (brightness.set over the
socket, and the config watcher). The flag now says whether anything
changed that the running display does not pick up by itself.
3. /health stayed "healthy" with the display service stopped: only the
sub-checks changed. Service inactive, no socket and no live heartbeat
is now ``display_loop: stopped`` and "degraded".
4. /display/current-status kept answering ``is_display_active: true`` from
the cache for up to 120 s after the display stopped. With no socket and
no live heartbeat it is now unknown.
"""
import copy
import json
import os
import sys
import time
from pathlib import Path
from unittest.mock import patch
import pytest
sys.path.insert(0, str(Path(__file__).parent.parent))
from test._api_v3_test_helpers import api_v3_client, api_v3_module # noqa: F401,E402
from src import display_watchdog # noqa: E402
from src.ipc import client as control_client # noqa: E402
from web_interface import display_state # noqa: E402
REPO = Path(__file__).resolve().parent.parent
TEMPLATE = json.loads((REPO / 'config' / 'config.template.json').read_text(encoding='utf-8'))
@pytest.fixture
def store(api_v3_module, monkeypatch):
state = {'config': {}, 'saves': 0}
api_v3_module.api_v3.config_manager.load_config.side_effect = \
lambda *a, **k: copy.deepcopy(state['config'])
def fake_save(_manager, config, **_kwargs):
state['config'] = copy.deepcopy(config)
state['saves'] += 1
return True, ''
monkeypatch.setattr(api_v3_module, '_save_config_atomic', fake_save)
return state
# --- 1. schedules ---------------------------------------------------------------
SCHEDULE_ROUTES = [('/api/v3/config/schedule', 'schedule'),
('/api/v3/config/dim-schedule', 'dim_schedule')]
@pytest.mark.parametrize('route,section', SCHEDULE_ROUTES)
def test_the_templates_disabled_per_day_schedule_saves_back(api_v3_client, store,
route, section):
stored = copy.deepcopy(TEMPLATE[section])
stored['mode'] = 'per-day'
assert stored['enabled'] is False
assert not any(day['enabled'] for day in stored['days'].values())
store['config'] = {section: copy.deepcopy(stored)}
read = api_v3_client.get(route).get_json()['data']
resp = api_v3_client.post(route, json=read)
assert resp.status_code == 200, resp.get_json()
saved = store['config'][section]
assert saved['enabled'] is False and saved['mode'] == 'per-day'
# The disabled days keep their times: switching one on finds them.
assert saved['days'] == stored['days']
@pytest.mark.parametrize('route,section', SCHEDULE_ROUTES)
def test_an_enabled_per_day_schedule_still_needs_a_day(api_v3_client, store, route, section):
body = copy.deepcopy(TEMPLATE[section])
body.update(enabled=True, mode='per-day')
resp = api_v3_client.post(route, json=body)
assert resp.status_code == 400
assert 'At least one day must be enabled' in resp.get_json()['message']
assert store['saves'] == 0
@pytest.mark.parametrize('route', [r for r, _ in SCHEDULE_ROUTES])
def test_the_pickers_form_post_with_every_day_off_saves(api_v3_client, store, route):
"""What schedule-picker.js posts: flat hidden inputs, booleans as strings,
times for every day."""
body = {'enabled': 'false', 'mode': 'per_day', 'start_time': '07:00', 'end_time': '23:00'}
for day in ('monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday', 'sunday'):
body.update({f'{day}_enabled': 'false', f'{day}_start': '06:30', f'{day}_end': '22:15'})
resp = api_v3_client.post(route, json=body)
assert resp.status_code == 200, resp.get_json()
def test_an_invalid_time_on_a_disabled_day_is_dropped_not_refused(api_v3_client, store):
body = {'enabled': False, 'mode': 'per-day',
'days': {'monday': {'enabled': False, 'start_time': 'soon', 'end_time': '22:00'}}}
resp = api_v3_client.post('/api/v3/config/schedule', json=body)
assert resp.status_code == 200, resp.get_json()
assert store['config']['schedule']['days']['monday'] == {'enabled': False,
'end_time': '22:00'}
# --- 2. restart_required on /config/main ------------------------------------------
STORED_MAIN = {
'timezone': 'America/Chicago',
'display': {
'hardware': {'rows': 32, 'cols': 64, 'chain_length': 2, 'brightness': 90,
'disable_hardware_pulsing': False, 'inverse_colors': False,
'show_refresh_rate': False},
'runtime': {'gpio_slowdown': 4},
'display_durations': {'clock': 15},
'use_short_date_format': False,
},
}
@pytest.fixture
def main_store(store):
store['config'] = copy.deepcopy(STORED_MAIN)
return store
def _save_main(client, body):
with patch('web_interface.blueprints.api_v3.control_client.brightness_set',
side_effect=control_client.ControlError('no_socket', 'x')):
resp = client.post('/api/v3/config/main', data=json.dumps(body),
content_type='application/json')
assert resp.status_code == 200, resp.get_json()
return resp.get_json()
def test_a_brightness_only_save_needs_no_restart(api_v3_client, main_store):
body = _save_main(api_v3_client, {'brightness': 40})
assert main_store['config']['display']['hardware']['brightness'] == 40
assert body['restart_required'] is False
def test_a_brightness_save_on_a_config_without_a_display_section(api_v3_client, store):
"""The route creates display.hardware and display.runtime on the way;
empty sections are not a change."""
store['config'] = {}
assert _save_main(api_v3_client, {'brightness': 40})['restart_required'] is False
def test_the_display_form_with_only_brightness_changed_needs_no_restart(api_v3_client,
main_store):
hw = STORED_MAIN['display']['hardware']
body = {'__form_section': 'display', 'rows': 32, 'cols': 64, 'chain_length': 2,
'brightness': 55, 'gpio_slowdown': 4}
body.update({k: 'on' for k in ('disable_hardware_pulsing', 'inverse_colors',
'show_refresh_rate') if hw[k]})
assert _save_main(api_v3_client, body)['restart_required'] is False
def test_a_mode_duration_needs_no_restart(api_v3_client, main_store):
body = _save_main(api_v3_client, {'duration__clock': 40})
assert main_store['config']['display']['display_durations']['clock'] == 40
assert body['restart_required'] is False
@pytest.mark.parametrize('change', [{'rows': 64}, {'brightness': 40, 'chain_length': 3},
{'gpio_slowdown': 2}, {'timezone': 'UTC'}])
def test_a_setting_the_display_reads_at_startup_still_needs_one(api_v3_client, main_store,
change):
assert _save_main(api_v3_client, change)['restart_required'] is True
def test_restart_needed_compares_leaves():
from web_interface.blueprints.api_v3.config import restart_needed
before = {'display': {'hardware': {'brightness': 90, 'rows': 32}}}
assert not restart_needed(before, copy.deepcopy(before))
assert not restart_needed(before, {'display': {'hardware': {'brightness': 10, 'rows': 32},
'runtime': {}}})
assert restart_needed(before, {'display': {'hardware': {'brightness': 90}}}) # removed
assert not restart_needed({}, {'clock': {'enabled': True}}, live_paths=[('clock',)])
assert restart_needed({}, {'clockwork': {'enabled': True}}, live_paths=[('clock',)])
# --- 3 and 4. a stopped display -----------------------------------------------------
@pytest.fixture
def no_display(monkeypatch, tmp_path):
"""A Pi whose display service has stopped: the socket is expected here
but does not answer, and systemd took the heartbeat's directory away."""
monkeypatch.setattr(display_state, 'socket_supported', lambda: True)
monkeypatch.setattr(display_state, 'client_socket_paths', lambda: [str(tmp_path / 'gone')])
monkeypatch.setattr(display_state, 'read_state', lambda: None)
path = tmp_path / 'display-heartbeat.json'
monkeypatch.setattr(display_watchdog, 'HEARTBEAT_PATH', str(path))
def beat(age, pid=None):
path.write_text(json.dumps({'pid': os.getpid() if pid is None else pid,
'mono': time.monotonic() - age,
'wall': time.time() - age}))
return beat
@pytest.fixture
def service(monkeypatch):
status = {'active': False, 'returncode': 3, 'stdout': 'inactive', 'stderr': ''}
monkeypatch.setattr('web_interface.blueprints.api_v3.misc._get_display_service_status',
lambda: dict(status))
return status
@pytest.fixture
def fresh_preview(tmp_path, monkeypatch):
"""The preview frame the display left behind, under 60 s old: on its own
it kept the hardware check "connected"."""
from web_interface import display_preview
snapshot = tmp_path / 'preview.png'
snapshot.write_bytes(b'png')
monkeypatch.setattr(display_preview, 'SNAPSHOT_PATH', str(snapshot))
def _health(client):
resp = client.get('/api/v3/health')
assert resp.status_code == 200, resp.get_json()
return resp.get_json()['data']
class TestHealth:
def test_a_stopped_display_service_is_degraded(self, api_v3_client, no_display, service,
fresh_preview):
data = _health(api_v3_client)
assert data['services']['display_service']['status'] == 'inactive'
assert data['checks']['display_loop']['status'] == 'stopped'
assert data['status'] == 'degraded'
def test_a_service_still_starting_is_not(self, api_v3_client, no_display, service,
fresh_preview):
"""Active, before its socket and first heartbeat: not stopped."""
service.update(active=True, stdout='active', returncode=0)
data = _health(api_v3_client)
assert data['checks']['display_loop']['status'] == 'not_reported'
assert data['status'] == 'healthy'
def test_a_display_run_by_hand_is_not_stopped(self, api_v3_client, no_display, service,
fresh_preview):
"""The service is off but a display process beats (sudo python3 run.py)."""
no_display(age=2)
data = _health(api_v3_client)
assert data['checks']['display_loop']['status'] == 'running'
assert data['status'] == 'healthy'
@pytest.mark.parametrize('platform', ['no_unix_sockets', 'socket_off'])
def test_without_a_socket_to_expect_nothing_changes(self, api_v3_client, no_display,
service, fresh_preview, monkeypatch,
platform):
"""Windows and the dev server (no systemd unit), or the socket
deliberately off: no heartbeat is no signal, as before."""
if platform == 'no_unix_sockets':
monkeypatch.setattr(display_state, 'socket_supported', lambda: False)
else:
monkeypatch.setattr(display_state, 'client_socket_paths', lambda: [])
service.update(returncode=-1, stdout='', stderr='systemctl not found')
data = _health(api_v3_client)
assert data['checks']['display_loop']['status'] == 'not_reported'
assert data['status'] == 'healthy'
def test_the_status_only_answer_says_degraded(self, api_v3_client, no_display, service,
fresh_preview, monkeypatch):
monkeypatch.setattr('web_interface.blueprints.api_v3.misc.request_is_authenticated',
lambda: False)
resp = api_v3_client.get('/api/v3/health')
assert resp.get_json()['data'] == {'status': 'degraded'}
class TestCurrentStatus:
CACHED = {'mode': 'clock', 'plugin_id': 'clock', 'is_display_active': True,
'on_demand_active': False, 'last_updated': None}
@pytest.fixture
def cached(self, api_v3_module):
entry = dict(self.CACHED, last_updated=time.time() - 30)
cache = api_v3_module.api_v3.cache_manager
cache.get.side_effect = lambda key, *a, **kw: (
dict(entry) if key == 'display_current_state' else None)
return entry
def _status(self, client):
resp = client.get('/api/v3/display/current-status')
assert resp.status_code == 200
return resp.get_json()['data']
def test_a_stopped_display_is_not_reported_active(self, api_v3_client, no_display, cached):
data = self._status(api_v3_client)
assert not data.get('is_display_active')
assert data['mode'] is None and data['last_updated'] is None
assert data['source'] == 'cache'
def test_a_stale_heartbeat_is_not_active_either(self, api_v3_client, no_display, cached):
no_display(age=display_watchdog.HEARTBEAT_STALE_SECONDS + 5)
assert self._status(api_v3_client)['mode'] is None
@pytest.mark.skipif(os.name != 'posix', reason='process_exists answers only on POSIX')
def test_a_heartbeat_from_a_dead_process_is_not_active(self, api_v3_client, no_display,
cached):
no_display(age=1, pid=2 ** 22 + 12345)
assert self._status(api_v3_client)['mode'] is None
def test_a_live_heartbeat_without_a_socket_reads_the_cache(self, api_v3_client,
no_display, cached):
"""An older display with no socket, still running."""
no_display(age=2)
data = self._status(api_v3_client)
assert data['mode'] == 'clock' and data['is_display_active'] is True
@pytest.mark.parametrize('platform', ['no_unix_sockets', 'socket_off'])
def test_without_a_socket_to_expect_the_cache_answers(self, api_v3_client, no_display,
cached, monkeypatch, platform):
if platform == 'no_unix_sockets':
monkeypatch.setattr(display_state, 'socket_supported', lambda: False)
else:
monkeypatch.setattr(display_state, 'client_socket_paths', lambda: [])
data = self._status(api_v3_client)
assert data['mode'] == 'clock' and data['is_display_active'] is True
+168
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@@ -489,3 +489,171 @@ class TestConcurrency:
assert live["peak"] <= espn_dates.ESPN_CHUNK_WORKERS
assert live["peak"] > 1, "chunks should actually overlap"
class TestEdgeMonths:
"""A window's partial edge months are asked whole and trimmed.
The default scoreboard window -- a fortnight either side of today -- spans
two partial months, so it used to cost 29 day requests per league. ESPN's
``dates=YYYYMMDD`` means a US Eastern day (verified against the live API
on 2026-10-03, 417 of 417 soccer events), so a month answer trimmed to
the window's Eastern days is what the day requests returned.
"""
def test_a_fortnight_either_side_is_two_requests(self):
planned = espn_dates.espn_request_chunks(date(2026, 9, 20), date(2026, 10, 18))
assert planned == [
("202609", (date(2026, 9, 20), date(2026, 9, 30))),
("202610", (date(2026, 10, 1), date(2026, 10, 18))),
]
def test_a_live_polls_two_days_stay_two_days(self):
planned = espn_dates.espn_request_chunks(date(2026, 10, 2), date(2026, 10, 3))
assert planned == [("20261002", None), ("20261003", None)]
def test_the_threshold_is_inclusive(self):
n = espn_dates.ESPN_MONTH_COVER_MIN_DAYS
short = espn_dates.espn_request_chunks(date(2026, 10, 1), date(2026, 10, n - 1))
assert [chunk for chunk, _ in short] == [
"202610%02d" % day for day in range(1, n)]
enough = espn_dates.espn_request_chunks(date(2026, 10, 1), date(2026, 10, n))
assert enough == [("202610", (date(2026, 10, 1), date(2026, 10, n)))]
def test_whole_months_and_short_edges_are_unchanged(self):
planned = espn_dates.espn_request_chunks(date(2026, 8, 30), date(2026, 10, 2))
assert planned == [
("20260830", None), ("20260831", None), ("202609", None),
("20261001", None), ("20261002", None),
]
def test_without_time_zone_data_edges_stay_days(self, monkeypatch):
monkeypatch.setattr(espn_dates, "_EASTERN", None)
planned = espn_dates.espn_request_chunks(date(2026, 9, 20), date(2026, 10, 18))
assert len(planned) == 29
assert all(trim is None for _, trim in planned)
@pytest.mark.parametrize("start,end", [
(date(2026, 9, 20), date(2026, 10, 18)),
(date(2026, 1, 25), date(2026, 3, 3)),
(date(2026, 12, 20), date(2027, 1, 9)),
(date(2026, 10, 5), date(2026, 10, 9)),
])
def test_the_planned_requests_still_cover_every_day_exactly_once(self, start, end):
covered = []
for chunk, trim in espn_dates.espn_request_chunks(start, end):
if trim is None:
covered.extend(days_covered_by([chunk]))
else:
assert chunk == trim[0].strftime("%Y%m") == trim[1].strftime("%Y%m")
covered.extend(trim[0] + timedelta(days=offset)
for offset in range((trim[1] - trim[0]).days + 1))
expected = [start + timedelta(days=offset) for offset in range((end - start).days + 1)]
assert covered == expected
def test_a_trimmed_month_keeps_only_the_windows_eastern_days(self):
september = [
# 03:30Z on the 20th is still the 19th in New York: outside.
{"id": "before", "date": "2026-09-20T03:30Z"},
{"id": "first", "date": "2026-09-20T14:00Z"},
{"id": "late", "date": "2026-09-30T23:30Z"},
]
october = [
{"id": "oct1", "date": "2026-10-01T19:00Z"},
# 03:30Z on the 19th is the evening of the 18th in New York: inside.
{"id": "last", "date": "2026-10-19T03:30Z"},
{"id": "after", "date": "2026-10-19T14:00Z"},
{"id": "undated"},
]
session = FakeSession({"202609": september, "202610": october})
data = fetch_espn_date_chunks(session, URL, params={"dates": "20260920-20261018"})
assert sorted(call["dates"] for call in session.calls) == ["202609", "202610"]
# An event with no readable date is kept, never dropped on a guess.
assert [e["id"] for e in data["events"]] == ["first", "late", "oct1", "last", "undated"]
def test_eastern_standard_time_is_honoured_after_the_clocks_change(self):
# 2026-11-01 ends daylight saving: Eastern is UTC-5 from then on.
november = [
{"id": "out", "date": "2026-11-15T04:30Z"}, # Nov 14, 23:30 EST
{"id": "in", "date": "2026-11-15T05:30Z"}, # Nov 15, 00:30 EST
]
session = FakeSession({"202611": november})
data = fetch_espn_date_chunks(session, URL, params={"dates": "20261115-20261121"})
assert [e["id"] for e in data["events"]] == ["in"]
def test_a_capped_edge_month_re_asks_only_the_windows_days(self):
full = [{"id": "cap%d" % i, "date": "2026-10-05T18:00Z"} for i in range(ESPN_MAX_LIMIT)]
by_chunk = {"202610": full}
by_chunk.update({"202610%02d" % day: [{"id": "o%02d" % day}] for day in range(1, 32)})
session = FakeSession(by_chunk)
data = fetch_espn_date_chunks(session, URL, params={"dates": "20261001-20261010"})
sent = [call["dates"] for call in session.calls]
assert sent[0] == "202610"
assert sorted(sent[1:]) == ["202610%02d" % day for day in range(1, 11)]
assert [e["id"] for e in data["events"]] == ["o%02d" % day for day in range(1, 11)]
class TestProcessWideChunkCap:
"""The chunk cap holds across windows, not per window.
A soccer board starting eight leagues fetches sixteen windows at once.
With a pool of ``ESPN_CHUNK_WORKERS`` each, ~40 requests were in flight
and every one past a session's pool opened a connection -- and a DNS
lookup. On ledpi that was ~90 NameResolutionErrors per start.
"""
def test_concurrent_windows_share_one_budget(self):
live = {"now": 0, "peak": 0}
guard = threading.Lock()
class CountingSession(FakeSession):
def get(self, url, params=None, headers=None, timeout=None):
with guard:
live["now"] += 1
live["peak"] = max(live["peak"], live["now"])
try:
time.sleep(0.01)
return super().get(url, params=params, headers=headers, timeout=timeout)
finally:
with guard:
live["now"] -= 1
sessions = [CountingSession() for _ in range(6)]
# Six leagues, so the fetch service cannot merge them into one, on a
# host with no token bucket: earlier tests may have spent ESPN's
# burst, and a bucket paced at 20/s would serialise these by itself.
threads = [
threading.Thread(target=fetch_espn_date_chunks,
args=(session, "https://scores.example.test/league%d" % index),
kwargs={"params": {"dates": "20260101-20261231"}})
for index, session in enumerate(sessions)
]
for thread in threads:
thread.start()
for thread in threads:
thread.join(timeout=30)
assert all(len(session.calls) == 12 for session in sessions)
assert live["peak"] <= espn_dates.ESPN_CHUNK_WORKERS
assert live["peak"] > 1, "chunks should still overlap"
def test_a_fresh_process_skips_the_doomed_range_request():
"""Every start used to spend one 400 per window learning that ranges are
still rejected -- eleven at once from a soccer board. A new process now
starts inside the retry period instead."""
import subprocess
import sys
from pathlib import Path
out = subprocess.run(
[sys.executable, "-c",
"import src.common.espn_dates as e; print(e._ranges_known_rejected())"],
cwd=str(Path(__file__).resolve().parents[1]),
capture_output=True, text=True, timeout=60,
)
assert out.stdout.strip() == "True", out.stderr
+2 -2
View File
@@ -670,14 +670,14 @@ class TestCallerIdentity:
assert _counters(global_service, plugin="football-scoreboard")["requests"] == 1
def test_espn_chunks_on_worker_threads_count_against_the_caller(self, global_service):
from src.common.espn_dates import espn_date_chunks, fetch_espn_date_chunks, parse_espn_date_range
from src.common.espn_dates import espn_request_chunks, fetch_espn_date_chunks, parse_espn_date_range
session = FakeSession(lambda url, kw: make_response(body=b'{"events": []}', url=url))
dates = "20260801-20261015"
with plugin_scope("baseball-scoreboard"):
fetch_espn_date_chunks(session, "https://site.api.espn.com/s/scoreboard",
params={"dates": dates})
chunks = len(espn_date_chunks(*parse_espn_date_range(dates)))
chunks = len(espn_request_chunks(*parse_espn_date_range(dates)))
assert chunks > 1
assert len(session.calls) == chunks
assert _counters(global_service, plugin="baseball-scoreboard")["requests"] == chunks
+183
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@@ -0,0 +1,183 @@
"""A frame the preview throttle skipped still reaches the snapshot.
The preview snapshot (/api/v3/display/current, the web UI's live preview) is
only written from update_display(), at most once per write interval. A screen
that draws its card once and then holds it -- soccer's recent/upcoming cards
skip redundant redraws -- pushes exactly one frame. When that push lands inside
the interval, e.g. a few milliseconds after the on-demand start's clear wrote a
black frame, the throttle skips it and nothing ever writes it: on ledpi the
preview stayed black for soccer's whole 15 s screen while the panel showed the
card, and the next screen "rendered immediately".
Runs the real DisplayManager on the emulator, like test_display_dirty_tracking.
"""
import os
import sys
import types
os.environ["EMULATOR"] = "true"
import pytest
from PIL import Image
sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
@pytest.fixture(scope="module")
def dm(tmp_path_factory):
from src.display_manager import DisplayManager
DisplayManager._instance = None
manager = DisplayManager({
"display": {
"hardware": {"rows": 32, "cols": 64, "chain_length": 2,
"parallel": 1, "brightness": 90},
"runtime": {"gpio_slowdown": 0},
},
}, suppress_test_pattern=True)
manager._snapshot_path = str(
tmp_path_factory.mktemp("owed_snapshot") / "led_matrix_preview.png")
yield manager
DisplayManager._instance = None
@pytest.fixture
def viewer(dm, monkeypatch, tmp_path):
"""A preview is open (1 s write interval); fresh snapshot bookkeeping."""
monkeypatch.setattr(dm, "_viewer_is_fresh", lambda now: True)
dm._viewer_was_fresh = True
dm._snapshot_path = str(tmp_path / "snap.png")
dm._last_snapshot_ts = 0.0
dm._last_snapshot_touch_ts = 0.0
dm._last_snapshot_digest = None
dm._saved_snapshot_digest = None
dm._snapshot_owed = False
dm.set_scrolling_state(False)
return dm
def _lit(path):
with Image.open(path) as img:
return sum(1 for p in img.convert("RGB").getdata() if max(p) > 20)
def _age_last_write(dm, seconds=2.0):
"""As if `seconds` had passed since the last snapshot write."""
dm._last_snapshot_ts -= seconds
dm._last_snapshot_touch_ts -= seconds
def _clear_then_draw_card(dm):
"""The on-demand start's clear, then the card a few ms later."""
dm.clear()
dm.update_display() # black frame: written
assert _lit(dm._snapshot_path) == 0
dm.draw.rectangle([4, 4, 40, 20], fill=(255, 255, 0))
dm.update_display() # the card: inside the interval
def _controller(dm):
from src import display_controller as dc_module
controller = dc_module.DisplayController.__new__(dc_module.DisplayController)
controller.plugin_manager = None
controller.display_manager = dm
return controller
class _HoldingPlugin:
"""Already showing its card: display() returns True and draws nothing."""
plugin_id = "holding"
def __init__(self):
self.calls = 0
def display(self, display_mode=None, force_clear=False):
self.calls += 1
return True
def test_a_held_card_reaches_the_preview_on_the_next_frame(viewer):
dm = viewer
_clear_then_draw_card(dm)
assert _lit(dm._snapshot_path) == 0 # the throttle skipped the card
controller = _controller(dm)
plugin = _HoldingPlugin()
_age_last_write(dm)
# The render loop's next frame: the plugin draws nothing and makes no
# update_display() call, as soccer's switch cards do.
assert controller._display_once(plugin, "soccer_eng.1_recent", True) is True
assert plugin.calls == 1
assert _lit(dm._snapshot_path) > 0
def test_the_owed_write_still_waits_out_the_interval(viewer, monkeypatch):
dm = viewer
_clear_then_draw_card(dm)
saves = []
monkeypatch.setattr(dm, "_save_snapshot", lambda image: saves.append(image))
dm.write_owed_snapshot() # still inside the interval
assert saves == []
_age_last_write(dm)
dm.write_owed_snapshot()
assert len(saves) == 1
# Written: nothing is owed, so later frames do no work and the unchanged
# frame is not encoded again.
assert dm._snapshot_owed is False
_age_last_write(dm)
dm.write_owed_snapshot()
assert len(saves) == 1
def test_a_failed_owed_write_stays_owed_and_is_retried(viewer, monkeypatch):
dm = viewer
_clear_then_draw_card(dm)
_age_last_write(dm)
attempts = []
def failing_save(image):
attempts.append(image)
raise OSError("disk full")
monkeypatch.setattr(dm, "_save_snapshot", failing_save)
dm.write_owed_snapshot() # the write fails
assert len(attempts) == 1
assert dm._snapshot_owed is True # still owed: a held screen
saves = [] # makes no update_display()
monkeypatch.setattr(dm, "_save_snapshot", lambda image: saves.append(image))
dm.write_owed_snapshot() # retried on the next frame
assert len(saves) == 1
assert dm._snapshot_owed is False
def test_nothing_owed_after_a_frame_that_was_written(viewer, monkeypatch):
dm = viewer
dm.draw.rectangle([0, 0, 8, 8], fill=(0, 255, 0))
dm.update_display() # due: written at once
assert dm._snapshot_owed is False
calls = []
monkeypatch.setattr(dm, "_write_snapshot_if_due",
lambda *a, **k: calls.append(a))
dm.write_owed_snapshot()
assert calls == []
def test_an_unchanged_frame_inside_the_interval_is_not_owed(viewer):
dm = viewer
dm.draw.rectangle([0, 0, 8, 8], fill=(0, 0, 255))
dm.update_display()
dm.update_display() # same frame, inside the interval
assert dm._snapshot_owed is False
def test_a_controller_without_the_hook_still_draws():
"""Controllers built without a display manager (tests) are unaffected."""
from src import display_controller as dc_module
controller = dc_module.DisplayController.__new__(dc_module.DisplayController)
controller.plugin_manager = None
plugin = _HoldingPlugin()
assert controller._display_once(plugin, "x", True) is True
controller.display_manager = types.SimpleNamespace()
assert controller._display_once(plugin, "x", True) is True
assert plugin.calls == 2
+11
View File
@@ -612,6 +612,12 @@ class TestEndToEnd:
cached['display_current_state'] = {'mode': 'from-cache', 'last_updated': 1}
path = str(tmp_path / 'control.sock')
monkeypatch.setenv(c.SOCKET_PATH_ENV, path)
# The display is this process, and its render loop is beating: the
# cache is then still its answer once the socket goes.
heartbeat = tmp_path / 'display-heartbeat.json'
heartbeat.write_text(json.dumps({'pid': os.getpid(), 'mono': time.monotonic(),
'wall': time.time()}))
monkeypatch.setattr(display_watchdog, 'HEARTBEAT_PATH', str(heartbeat))
hub = _hub_with_everything()
server = ControlServer(path, state_hub=hub, keepalive=0.2)
assert server.start()
@@ -638,3 +644,8 @@ class TestEndToEnd:
break
time.sleep(0.05)
assert (data['mode'], data['source']) == ('from-cache', 'cache')
# Stopped: systemd takes the heartbeat's directory with it, and the
# cache's last answer is no longer anyone's.
heartbeat.unlink()
data = _data(client, '/api/v3/display/current-status')
assert (data['mode'], data['source']) == (None, 'cache')
@@ -221,7 +221,9 @@ class TestTheWebProcessNeverRunsAPlugin:
def test_saving_its_section_through_the_main_config(self, web):
body = web.post("/api/v3/config/main", {PLUGIN_ID: {"message": "via main"}})
assert web.stored()["message"] == "via main"
assert body["restart_required"] is True
# The display's config watcher hands the section to the running
# plugin (on_config_change), as for /plugins/config: no restart.
assert body["restart_required"] is False
assert web.ran() == []
def test_resetting_its_config(self, web):