254 lines
9.2 KiB
Python
254 lines
9.2 KiB
Python
"""Test Home Assistant date util methods."""
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import unittest
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from datetime import datetime, timedelta
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import homeassistant.util.dt as dt_util
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import pytest
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TEST_TIME_ZONE = 'America/Los_Angeles'
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class TestDateUtil(unittest.TestCase):
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"""Test util date methods."""
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def setUp(self):
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"""Set up the tests."""
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self.orig_default_time_zone = dt_util.DEFAULT_TIME_ZONE
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def tearDown(self):
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"""Stop everything that was started."""
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dt_util.set_default_time_zone(self.orig_default_time_zone)
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def test_get_time_zone_retrieves_valid_time_zone(self):
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"""Test getting a time zone."""
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time_zone = dt_util.get_time_zone(TEST_TIME_ZONE)
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assert time_zone is not None
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assert TEST_TIME_ZONE == time_zone.zone
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def test_get_time_zone_returns_none_for_garbage_time_zone(self):
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"""Test getting a non existing time zone."""
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time_zone = dt_util.get_time_zone("Non existing time zone")
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assert time_zone is None
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def test_set_default_time_zone(self):
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"""Test setting default time zone."""
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time_zone = dt_util.get_time_zone(TEST_TIME_ZONE)
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dt_util.set_default_time_zone(time_zone)
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# We cannot compare the timezones directly because of DST
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assert time_zone.zone == dt_util.now().tzinfo.zone
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def test_utcnow(self):
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"""Test the UTC now method."""
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assert abs(dt_util.utcnow().replace(tzinfo=None)-datetime.utcnow()) < \
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timedelta(seconds=1)
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def test_now(self):
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"""Test the now method."""
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dt_util.set_default_time_zone(dt_util.get_time_zone(TEST_TIME_ZONE))
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assert abs(
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dt_util.as_utc(dt_util.now()).replace(
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tzinfo=None
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) - datetime.utcnow()
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) < timedelta(seconds=1)
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def test_as_utc_with_naive_object(self):
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"""Test the now method."""
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utcnow = datetime.utcnow()
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assert utcnow == dt_util.as_utc(utcnow).replace(tzinfo=None)
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def test_as_utc_with_utc_object(self):
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"""Test UTC time with UTC object."""
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utcnow = dt_util.utcnow()
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assert utcnow == dt_util.as_utc(utcnow)
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def test_as_utc_with_local_object(self):
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"""Test the UTC time with local object."""
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dt_util.set_default_time_zone(dt_util.get_time_zone(TEST_TIME_ZONE))
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localnow = dt_util.now()
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utcnow = dt_util.as_utc(localnow)
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assert localnow == utcnow
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assert localnow.tzinfo != utcnow.tzinfo
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def test_as_local_with_naive_object(self):
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"""Test local time with native object."""
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now = dt_util.now()
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assert abs(now-dt_util.as_local(datetime.utcnow())) < \
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timedelta(seconds=1)
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def test_as_local_with_local_object(self):
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"""Test local with local object."""
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now = dt_util.now()
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assert now == now
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def test_as_local_with_utc_object(self):
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"""Test local time with UTC object."""
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dt_util.set_default_time_zone(dt_util.get_time_zone(TEST_TIME_ZONE))
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utcnow = dt_util.utcnow()
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localnow = dt_util.as_local(utcnow)
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assert localnow == utcnow
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assert localnow.tzinfo != utcnow.tzinfo
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def test_utc_from_timestamp(self):
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"""Test utc_from_timestamp method."""
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assert datetime(1986, 7, 9, tzinfo=dt_util.UTC) == \
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dt_util.utc_from_timestamp(521251200)
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def test_as_timestamp(self):
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"""Test as_timestamp method."""
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ts = 1462401234
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utc_dt = dt_util.utc_from_timestamp(ts)
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assert ts == dt_util.as_timestamp(utc_dt)
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utc_iso = utc_dt.isoformat()
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assert ts == dt_util.as_timestamp(utc_iso)
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# confirm the ability to handle a string passed in
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delta = dt_util.as_timestamp("2016-01-01 12:12:12")
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delta -= dt_util.as_timestamp("2016-01-01 12:12:11")
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assert 1 == delta
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def test_parse_datetime_converts_correctly(self):
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"""Test parse_datetime converts strings."""
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assert \
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datetime(1986, 7, 9, 12, 0, 0, tzinfo=dt_util.UTC) == \
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dt_util.parse_datetime("1986-07-09T12:00:00Z")
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utcnow = dt_util.utcnow()
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assert utcnow == dt_util.parse_datetime(utcnow.isoformat())
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def test_parse_datetime_returns_none_for_incorrect_format(self):
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"""Test parse_datetime returns None if incorrect format."""
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assert dt_util.parse_datetime("not a datetime string") is None
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def test_get_age(self):
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"""Test get_age."""
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diff = dt_util.now() - timedelta(seconds=0)
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assert dt_util.get_age(diff) == "0 seconds"
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diff = dt_util.now() - timedelta(seconds=1)
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assert dt_util.get_age(diff) == "1 second"
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diff = dt_util.now() - timedelta(seconds=30)
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assert dt_util.get_age(diff) == "30 seconds"
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diff = dt_util.now() - timedelta(minutes=5)
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assert dt_util.get_age(diff) == "5 minutes"
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diff = dt_util.now() - timedelta(minutes=1)
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assert dt_util.get_age(diff) == "1 minute"
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diff = dt_util.now() - timedelta(minutes=300)
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assert dt_util.get_age(diff) == "5 hours"
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diff = dt_util.now() - timedelta(minutes=320)
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assert dt_util.get_age(diff) == "5 hours"
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diff = dt_util.now() - timedelta(minutes=2*60*24)
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assert dt_util.get_age(diff) == "2 days"
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diff = dt_util.now() - timedelta(minutes=32*60*24)
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assert dt_util.get_age(diff) == "1 month"
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diff = dt_util.now() - timedelta(minutes=365*60*24)
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assert dt_util.get_age(diff) == "1 year"
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def test_parse_time_expression(self):
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"""Test parse_time_expression."""
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assert [x for x in range(60)] == \
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dt_util.parse_time_expression('*', 0, 59)
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assert [x for x in range(60)] == \
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dt_util.parse_time_expression(None, 0, 59)
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assert [x for x in range(0, 60, 5)] == \
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dt_util.parse_time_expression('/5', 0, 59)
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assert [1, 2, 3] == \
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dt_util.parse_time_expression([2, 1, 3], 0, 59)
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assert [x for x in range(24)] == \
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dt_util.parse_time_expression('*', 0, 23)
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assert [42] == \
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dt_util.parse_time_expression(42, 0, 59)
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with pytest.raises(ValueError):
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dt_util.parse_time_expression(61, 0, 60)
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def test_find_next_time_expression_time_basic(self):
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"""Test basic stuff for find_next_time_expression_time."""
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def find(dt, hour, minute, second):
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"""Call test_find_next_time_expression_time."""
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seconds = dt_util.parse_time_expression(second, 0, 59)
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minutes = dt_util.parse_time_expression(minute, 0, 59)
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hours = dt_util.parse_time_expression(hour, 0, 23)
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return dt_util.find_next_time_expression_time(
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dt, seconds, minutes, hours)
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assert datetime(2018, 10, 7, 10, 30, 0) == \
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find(datetime(2018, 10, 7, 10, 20, 0), '*', '/30', 0)
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assert datetime(2018, 10, 7, 10, 30, 0) == \
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find(datetime(2018, 10, 7, 10, 30, 0), '*', '/30', 0)
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assert datetime(2018, 10, 7, 12, 30, 30) == \
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find(datetime(2018, 10, 7, 10, 30, 0), '/3', '/30', [30, 45])
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assert datetime(2018, 10, 8, 5, 0, 0) == \
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find(datetime(2018, 10, 7, 10, 30, 0), 5, 0, 0)
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def test_find_next_time_expression_time_dst(self):
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"""Test daylight saving time for find_next_time_expression_time."""
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tz = dt_util.get_time_zone('Europe/Vienna')
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dt_util.set_default_time_zone(tz)
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def find(dt, hour, minute, second):
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"""Call test_find_next_time_expression_time."""
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seconds = dt_util.parse_time_expression(second, 0, 59)
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minutes = dt_util.parse_time_expression(minute, 0, 59)
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hours = dt_util.parse_time_expression(hour, 0, 23)
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return dt_util.find_next_time_expression_time(
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dt, seconds, minutes, hours)
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# Entering DST, clocks are rolled forward
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assert tz.localize(datetime(2018, 3, 26, 2, 30, 0)) == \
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find(tz.localize(datetime(2018, 3, 25, 1, 50, 0)), 2, 30, 0)
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assert tz.localize(datetime(2018, 3, 26, 2, 30, 0)) == \
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find(tz.localize(datetime(2018, 3, 25, 3, 50, 0)), 2, 30, 0)
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assert tz.localize(datetime(2018, 3, 26, 2, 30, 0)) == \
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find(tz.localize(datetime(2018, 3, 26, 1, 50, 0)), 2, 30, 0)
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# Leaving DST, clocks are rolled back
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assert tz.localize(datetime(2018, 10, 28, 2, 30, 0), is_dst=False) == \
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find(tz.localize(datetime(2018, 10, 28, 2, 5, 0), is_dst=False),
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2, 30, 0)
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assert tz.localize(datetime(2018, 10, 28, 2, 30, 0), is_dst=False) == \
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find(tz.localize(datetime(2018, 10, 28, 2, 55, 0), is_dst=True),
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2, 30, 0)
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assert tz.localize(datetime(2018, 10, 28, 4, 30, 0), is_dst=False) == \
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find(tz.localize(datetime(2018, 10, 28, 2, 55, 0), is_dst=True),
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4, 30, 0)
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assert tz.localize(datetime(2018, 10, 28, 2, 30, 0), is_dst=True) == \
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find(tz.localize(datetime(2018, 10, 28, 2, 5, 0), is_dst=True),
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2, 30, 0)
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assert tz.localize(datetime(2018, 10, 29, 2, 30, 0)) == \
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find(tz.localize(datetime(2018, 10, 28, 2, 55, 0), is_dst=False),
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2, 30, 0)
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