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test_setops.py
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test_setops.py
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import numpy as np
import pandas as pd
import pandas.util.testing as tm
from pandas import TimedeltaIndex, timedelta_range, Int64Index
class TestTimedeltaIndex(tm.TestCase):
_multiprocess_can_split_ = True
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 = TimedeltaIndex(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)
self.assertEqual(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
self.assertEqual(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)