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import pytz
from datetime import date, datetime, time, timezone
from deepdiff import DeepDiff
class TestDiffDatetime:
def test_datetime_diff(self):
"""Testing for the correct setting and usage of epsilon."""
d1 = {"a": datetime(2023, 7, 5, 10, 11, 12)}
d2 = {"a": datetime(2023, 7, 5, 10, 11, 12)}
res = DeepDiff(d1, d2)
assert res == {}
res = DeepDiff(d1, d2, ignore_numeric_type_changes=True)
assert res == {}
d1 = {"a": datetime(2023, 7, 5, 10, 11, 12)}
d2 = {"a": datetime(2023, 7, 5, 11, 11, 12)}
res = DeepDiff(d1, d2)
expected = {
"values_changed": {
"root['a']": {
"new_value": datetime(2023, 7, 5, 11, 11, 12, tzinfo=timezone.utc),
"old_value": datetime(2023, 7, 5, 10, 11, 12, tzinfo=timezone.utc),
}
}
}
assert res == expected
def test_date_diff(self):
"""Testing for the correct setting and usage of epsilon."""
d1 = {"a": date(2023, 7, 5)}
d2 = {"a": date(2023, 7, 5)}
res = DeepDiff(d1, d2)
assert res == {}
# this usage failed in version >=6.0, <=6.3.0
res = DeepDiff(d1, d2, ignore_numeric_type_changes=True)
assert res == {}
d1 = {"a": date(2023, 7, 5)}
d2 = {"a": date(2023, 7, 6)}
res = DeepDiff(d1, d2)
expected = {
"values_changed": {
"root['a']": {
"new_value": date(2023, 7, 6),
"old_value": date(2023, 7, 5),
}
}
}
assert res == expected
def test_time_diff(self):
"""Testing for the correct setting and usage of epsilon."""
d1 = {"a": time(10, 11, 12)}
d2 = {"a": time(10, 11, 12)}
res = DeepDiff(d1, d2)
assert res == {}
res = DeepDiff(d1, d2, ignore_numeric_type_changes=True)
assert res == {}
d1 = {"a": time(10, 11, 12)}
d2 = {"a": time(11, 11, 12)}
res = DeepDiff(d1, d2)
expected = {
"values_changed": {
"root['a']": {
"new_value": time(11, 11, 12),
"old_value": time(10, 11, 12),
}
}
}
assert res == expected
def test_diffs_datetimes_different_timezones(self):
dt_utc = datetime(2025, 2, 3, 12, 0, 0, tzinfo=pytz.utc) # UTC timezone
# Convert it to another timezone (e.g., New York)
dt_ny = dt_utc.astimezone(pytz.timezone('America/New_York'))
assert dt_utc == dt_ny
diff = DeepDiff(dt_utc, dt_ny)
assert not diff
t1 = [dt_utc, dt_ny]
t2 = [dt_ny, dt_utc]
assert not DeepDiff(t1, t2)
assert not DeepDiff(t1, t2, ignore_order=True)
t2 = [dt_ny, dt_utc, dt_ny]
assert not DeepDiff(t1, t2, ignore_order=True)
def test_diffs_datetimes_in_different_timezones(self):
dt_utc = datetime(2025, 2, 3, 12, 0, 0, tzinfo=pytz.utc) # UTC timezone
dt_utc2 = datetime(2025, 2, 3, 11, 0, 0, tzinfo=pytz.utc) # UTC timezone
dt_ny = dt_utc.astimezone(pytz.timezone('America/New_York'))
dt_ny2 = dt_utc2.astimezone(pytz.timezone('America/New_York'))
diff = DeepDiff(dt_ny, dt_ny2)
assert {
"values_changed": {
"root": {
"new_value": dt_utc2,
"old_value": dt_utc,
}
}
} == diff
diff2 = DeepDiff(dt_ny, dt_ny2, default_timezone=pytz.timezone('America/New_York'))
assert {
"values_changed": {
"root": {
"new_value": dt_ny2,
"old_value": dt_ny,
}
}
} == diff2
def test_datetime_within_array_with_timezone_diff(self):
d1 = [datetime(2020, 8, 31, 13, 14, 1)]
d2 = [datetime(2020, 8, 31, 13, 14, 1, tzinfo=timezone.utc)]
assert d1 != d2, "Python doesn't think these are the same datetimes"
assert not DeepDiff(d1, d2)
assert not DeepDiff(d1, d2, ignore_order=True)
assert not DeepDiff(d1, d2, truncate_datetime='second')
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