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import datetime
import json
import pathlib
from unittest import TestCase
from unittest.mock import MagicMock, call, patch, sentinel
from freezegun import freeze_time
from .. import precomputed_astronomy as mod
class PreComputedAstronomyTest(TestCase):
def test_year_interval(self):
self.assertEqual(mod.YEAR_INTERVAL, 30)
def test_time_zones(self):
self.assertEqual(mod.TIME_ZONES, (
'America/Santiago',
'Asia/Hong_Kong',
'Asia/Taipei',
'Asia/Tokyo',
))
def test_pre_computed_pathes(self):
self.assertEqual(
mod.pre_computed_equinoxes_path,
pathlib.Path(__file__).parent.parent / 'equinoxes.json.gz',
)
self.assertEqual(
mod.pre_computed_solar_terms_path,
pathlib.Path(__file__).parent.parent / 'solar_terms.json.gz',
)
@patch('calendra.skyfield_astronomy.solar_term')
@patch('calendra.skyfield_astronomy.calculate_equinoxes')
@patch('calendra.precomputed_astronomy.gzip.open')
@patch('calendra.precomputed_astronomy.YEAR_INTERVAL', 1)
@patch('calendra.precomputed_astronomy.TIME_ZONES', ('Europe/Paris',))
@freeze_time('2022-01-01')
def test_create_astronomical_data(self,
gzipopen,
calculate_equinoxes,
solar_term):
equinoxes_file = MagicMock(name='equinoxes')
equinoxes_file.__enter__.return_value = equinoxes_file
solar_terms_file = MagicMock(name='solar_terms')
solar_terms_file.__enter__.return_value = solar_terms_file
gzipopen.side_effect = [equinoxes_file, solar_terms_file]
calculate_equinoxes.side_effect = lambda year, timezone: (
datetime.date(year=year, month=2, day=15),
datetime.date(year=year, month=3, day=16),
)
solar_term.side_effect = lambda year, degrees, timezone: \
datetime.date(year=year, month=7, day=21)
mod.create_astronomical_data()
gzipopen.assert_has_calls([
call(mod.pre_computed_equinoxes_path, 'wb'),
call(mod.pre_computed_solar_terms_path, 'wb'),
], any_order=True)
expected_equinoxes_dict = {
'Europe/Paris': {
'2021': ('2021-02-15', '2021-03-16'),
'2022': ('2022-02-15', '2022-03-16'),
'2023': ('2023-02-15', '2023-03-16'),
}
}
equinoxes_file.write.assert_called_once_with(
json.dumps(expected_equinoxes_dict).encode('utf-8')
)
expected_solar_terms_dict = {
'Europe/Paris': {
'2021': {str(i): '2021-07-21' for i in range(15, 360, 15)},
'2022': {str(i): '2022-07-21' for i in range(15, 360, 15)},
'2023': {str(i): '2023-07-21' for i in range(15, 360, 15)},
}
}
solar_terms_file.write.assert_called_once_with(
json.dumps(expected_solar_terms_dict).encode('utf-8')
)
@patch('calendra.precomputed_astronomy.gzip.decompress')
@patch('calendra.precomputed_astronomy.pre_computed_equinoxes_path')
def test_calculate_equinoxes(self,
pre_computed_equinoxes_path,
decompress):
pre_computed_equinoxes_path.read_bytes.return_value = \
sentinel.some_equinoxes_bytes
decompress.return_value = json.dumps({
'Europe/Paris': {
'2021': ('2021-02-15', '2021-03-16'),
'2022': ('2022-02-15', '2022-03-16'),
'2023': ('2023-02-15', '2023-03-16'),
}
}).encode('utf-8')
with self.assertRaises(NotImplementedError):
mod.calculate_equinoxes(2100, 'Europe/Paris')
pre_computed_equinoxes_path.read_bytes.assert_called_once()
pre_computed_equinoxes_path.reset_mock()
decompress.assert_called_once_with(sentinel.some_equinoxes_bytes)
decompress.reset_mock()
with self.assertRaises(NotImplementedError):
mod.calculate_equinoxes(2022, 'Europe/Berlin')
pre_computed_equinoxes_path.read_bytes.assert_called_once()
pre_computed_equinoxes_path.reset_mock()
decompress.assert_called_once_with(sentinel.some_equinoxes_bytes)
decompress.reset_mock()
self.assertEqual(mod.calculate_equinoxes(2022, 'Europe/Paris'), (
datetime.date(year=2022, month=2, day=15),
datetime.date(year=2022, month=3, day=16),
))
pre_computed_equinoxes_path.read_bytes.assert_called_once()
pre_computed_equinoxes_path.reset_mock()
decompress.assert_called_once_with(sentinel.some_equinoxes_bytes)
decompress.reset_mock()
@patch('calendra.precomputed_astronomy.gzip.decompress')
@patch('calendra.precomputed_astronomy.pre_computed_solar_terms_path')
def test_sorted_term(self,
pre_computed_solar_terms_path,
decompress):
pre_computed_solar_terms_path.read_bytes.return_value = \
sentinel.some_solar_terms_bytes
decompress.return_value = json.dumps({
'Europe/Paris': {
'2021': {str(i): '2021-07-21' for i in range(15, 360, 15)},
'2022': {str(i): '2022-07-21' for i in range(15, 360, 15)},
'2023': {str(i): '2023-07-21' for i in range(15, 360, 15)},
}
}).encode('utf-8')
with self.assertRaises(ValueError):
mod.solar_term(2022, 0, 'Europe/Paris')
with self.assertRaises(ValueError):
mod.solar_term(2022, 360, 'Europe/Paris')
with self.assertRaises(ValueError):
mod.solar_term(2022, 20, 'Europe/Paris')
with self.assertRaises(NotImplementedError):
mod.solar_term(2100, 45, 'Europe/Paris')
pre_computed_solar_terms_path.read_bytes.assert_called_once()
pre_computed_solar_terms_path.reset_mock()
decompress.assert_called_once_with(sentinel.some_solar_terms_bytes)
decompress.reset_mock()
with self.assertRaises(NotImplementedError):
mod.solar_term(2022, 90, 'Europe/Berlin')
pre_computed_solar_terms_path.read_bytes.assert_called_once()
pre_computed_solar_terms_path.reset_mock()
decompress.assert_called_once_with(sentinel.some_solar_terms_bytes)
decompress.reset_mock()
self.assertEqual(
mod.solar_term(2022, 90, 'Europe/Paris'),
datetime.date(year=2022, month=7, day=21),
)
pre_computed_solar_terms_path.read_bytes.assert_called_once()
pre_computed_solar_terms_path.reset_mock()
decompress.assert_called_once_with(sentinel.some_solar_terms_bytes)
decompress.reset_mock()
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