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- import numpy as np
- import pandas as pd
- from pandas import Int64Index, TimedeltaIndex, timedelta_range
- import pandas.util.testing as tm
- class TestTimedeltaIndex(object):
- def test_union(self):
- i1 = timedelta_range('1day', periods=5)
- i2 = timedelta_range('3day', periods=5)
- result = i1.union(i2)
- expected = timedelta_range('1day', periods=7)
- tm.assert_index_equal(result, expected)
- i1 = Int64Index(np.arange(0, 20, 2))
- i2 = timedelta_range(start='1 day', periods=10, freq='D')
- i1.union(i2) # Works
- i2.union(i1) # Fails with "AttributeError: can't set attribute"
- def test_union_coverage(self):
- idx = TimedeltaIndex(['3d', '1d', '2d'])
- ordered = TimedeltaIndex(idx.sort_values(), freq='infer')
- result = ordered.union(idx)
- tm.assert_index_equal(result, ordered)
- result = ordered[:0].union(ordered)
- tm.assert_index_equal(result, ordered)
- assert result.freq == ordered.freq
- def test_union_bug_1730(self):
- rng_a = timedelta_range('1 day', periods=4, freq='3H')
- rng_b = timedelta_range('1 day', periods=4, freq='4H')
- result = rng_a.union(rng_b)
- exp = TimedeltaIndex(sorted(set(list(rng_a)) | set(list(rng_b))))
- tm.assert_index_equal(result, exp)
- def test_union_bug_1745(self):
- left = TimedeltaIndex(['1 day 15:19:49.695000'])
- right = TimedeltaIndex(['2 day 13:04:21.322000',
- '1 day 15:27:24.873000',
- '1 day 15:31:05.350000'])
- result = left.union(right)
- exp = TimedeltaIndex(sorted(set(list(left)) | set(list(right))))
- tm.assert_index_equal(result, exp)
- def test_union_bug_4564(self):
- left = timedelta_range("1 day", "30d")
- right = left + pd.offsets.Minute(15)
- result = left.union(right)
- exp = TimedeltaIndex(sorted(set(list(left)) | set(list(right))))
- tm.assert_index_equal(result, exp)
- def test_intersection_bug_1708(self):
- index_1 = timedelta_range('1 day', periods=4, freq='h')
- index_2 = index_1 + pd.offsets.Hour(5)
- result = index_1 & index_2
- assert len(result) == 0
- index_1 = timedelta_range('1 day', periods=4, freq='h')
- index_2 = index_1 + pd.offsets.Hour(1)
- result = index_1 & index_2
- expected = timedelta_range('1 day 01:00:00', periods=3, freq='h')
- tm.assert_index_equal(result, expected)
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