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| import numpy as np
| import pytest
|
| from pandas import (
| Interval,
| Timedelta,
| Timestamp,
| )
|
|
| @pytest.fixture
| def interval():
| return Interval(0, 1)
|
|
| class TestInterval:
| def test_properties(self, interval):
| assert interval.closed == "right"
| assert interval.left == 0
| assert interval.right == 1
| assert interval.mid == 0.5
|
| def test_hash(self, interval):
| # should not raise
| hash(interval)
|
| @pytest.mark.parametrize(
| "left, right, expected",
| [
| (0, 5, 5),
| (-2, 5.5, 7.5),
| (10, 10, 0),
| (10, np.inf, np.inf),
| (-np.inf, -5, np.inf),
| (-np.inf, np.inf, np.inf),
| (Timedelta("0 days"), Timedelta("5 days"), Timedelta("5 days")),
| (Timedelta("10 days"), Timedelta("10 days"), Timedelta("0 days")),
| (Timedelta("1h10min"), Timedelta("5h5min"), Timedelta("3h55min")),
| (Timedelta("5s"), Timedelta("1h"), Timedelta("59min55s")),
| ],
| )
| def test_length(self, left, right, expected):
| # GH 18789
| iv = Interval(left, right)
| result = iv.length
| assert result == expected
|
| @pytest.mark.parametrize(
| "left, right, expected",
| [
| ("2017-01-01", "2017-01-06", "5 days"),
| ("2017-01-01", "2017-01-01 12:00:00", "12 hours"),
| ("2017-01-01 12:00", "2017-01-01 12:00:00", "0 days"),
| ("2017-01-01 12:01", "2017-01-05 17:31:00", "4 days 5 hours 30 min"),
| ],
| )
| @pytest.mark.parametrize("tz", (None, "UTC", "CET", "US/Eastern"))
| def test_length_timestamp(self, tz, left, right, expected):
| # GH 18789
| iv = Interval(Timestamp(left, tz=tz), Timestamp(right, tz=tz))
| result = iv.length
| expected = Timedelta(expected)
| assert result == expected
|
| @pytest.mark.parametrize(
| "left, right",
| [
| (0, 1),
| (Timedelta("0 days"), Timedelta("1 day")),
| (Timestamp("2018-01-01"), Timestamp("2018-01-02")),
| (
| Timestamp("2018-01-01", tz="US/Eastern"),
| Timestamp("2018-01-02", tz="US/Eastern"),
| ),
| ],
| )
| def test_is_empty(self, left, right, closed):
| # GH27219
| # non-empty always return False
| iv = Interval(left, right, closed)
| assert iv.is_empty is False
|
| # same endpoint is empty except when closed='both' (contains one point)
| iv = Interval(left, left, closed)
| result = iv.is_empty
| expected = closed != "both"
| assert result is expected
|
|
