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from __future__ import annotations
import shutil
import sys
import tempfile
import unittest
from datetime import date
from pathlib import Path
REPO = Path(__file__).resolve().parents[1]
TOOLS = REPO / "tools"
sys.path.insert(0, str(TOOLS))
from holiday_lighting_coverage import CoverageError, validate_coverage # noqa: E402
class HolidayLightingCoverageTests(unittest.TestCase):
def setUp(self) -> None:
self.tempdir = tempfile.TemporaryDirectory(prefix="holiday-coverage-")
self.root = Path(self.tempdir.name)
files = (
"config/www/json_data/holidays.json",
"config/www/json_data/flag_days.json",
"config/scene/monthly_colors.yaml",
"config/packages/holiday.yaml",
"config/script/monthly_color_scene.yaml",
)
for relative in files:
source = REPO / relative
target = self.root / relative
target.parent.mkdir(parents=True, exist_ok=True)
shutil.copy2(source, target)
def tearDown(self) -> None:
self.tempdir.cleanup()
def _replace(self, relative: str, old: str, new: str, count: int = -1) -> None:
path = self.root / relative
original = path.read_text(encoding="utf-8")
changed = original.replace(old, new, count)
self.assertNotEqual(original, changed, f"mutation target not found: {old}")
path.write_text(changed, encoding="utf-8")
def test_current_contract_passes(self) -> None:
results = validate_coverage(self.root, date(2026, 7, 22), 24)
self.assertEqual(
results["Easter Sunday"],
(date(2027, 3, 28), date(2028, 4, 16)),
)
def test_inverted_scene_state_fails(self) -> None:
self._replace(
"config/scene/monthly_colors.yaml",
"state: 'on'",
"state: 'off'",
1,
)
with self.assertRaisesRegex(CoverageError, "must have state: on"):
validate_coverage(self.root, date(2026, 7, 22), 24)
def test_missing_required_year_fails(self) -> None:
self._replace(
"config/www/json_data/holidays.json",
' "03/28/2027": "Easter Sunday",\n',
"",
1,
)
with self.assertRaisesRegex(CoverageError, "missing 2027-03-28"):
validate_coverage(self.root, date(2026, 7, 22), 24)
def test_wrong_static_holiday_name_fails(self) -> None:
self._replace(
"config/www/json_data/holidays.json",
'"1/1": "New Years Day"',
'"1/1": "Wrong Holiday"',
1,
)
with self.assertRaisesRegex(CoverageError, "New Years Day"):
validate_coverage(self.root, date(2026, 7, 22), 24)
def test_invalid_unrelated_dynamic_date_fails(self) -> None:
self._replace(
"config/www/json_data/holidays.json",
'"01/19/2026": "MLK Day"',
'"2026-01-19": "MLK Day"',
1,
)
with self.assertRaisesRegex(CoverageError, "invalid date key"):
validate_coverage(self.root, date(2026, 7, 22), 24)
def test_scene_routing_typo_fails(self) -> None:
self._replace(
"config/packages/holiday.yaml",
"scene.month_{{ mode }}_colors",
"scene.month_{{ mode }}_colour",
1,
)
with self.assertRaisesRegex(CoverageError, "package routing"):
validate_coverage(self.root, date(2026, 7, 22), 24)
if __name__ == "__main__":
unittest.main()

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