203 lines
6.4 KiB
Python
203 lines
6.4 KiB
Python
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from __future__ import division
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import numpy as np
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from pandas import Interval, Timestamp, Timedelta
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import pandas.core.common as com
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import pytest
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import pandas.util.testing as tm
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@pytest.fixture
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def interval():
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return Interval(0, 1)
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class TestInterval(object):
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def test_properties(self, interval):
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assert interval.closed == 'right'
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assert interval.left == 0
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assert interval.right == 1
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assert interval.mid == 0.5
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def test_repr(self, interval):
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assert repr(interval) == "Interval(0, 1, closed='right')"
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assert str(interval) == "(0, 1]"
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interval_left = Interval(0, 1, closed='left')
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assert repr(interval_left) == "Interval(0, 1, closed='left')"
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assert str(interval_left) == "[0, 1)"
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def test_contains(self, interval):
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assert 0.5 in interval
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assert 1 in interval
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assert 0 not in interval
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msg = "__contains__ not defined for two intervals"
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with tm.assert_raises_regex(TypeError, msg):
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interval in interval
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interval_both = Interval(0, 1, closed='both')
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assert 0 in interval_both
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assert 1 in interval_both
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interval_neither = Interval(0, 1, closed='neither')
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assert 0 not in interval_neither
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assert 0.5 in interval_neither
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assert 1 not in interval_neither
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def test_equal(self):
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assert Interval(0, 1) == Interval(0, 1, closed='right')
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assert Interval(0, 1) != Interval(0, 1, closed='left')
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assert Interval(0, 1) != 0
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def test_comparison(self):
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with tm.assert_raises_regex(TypeError, 'unorderable types'):
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Interval(0, 1) < 2
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assert Interval(0, 1) < Interval(1, 2)
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assert Interval(0, 1) < Interval(0, 2)
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assert Interval(0, 1) < Interval(0.5, 1.5)
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assert Interval(0, 1) <= Interval(0, 1)
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assert Interval(0, 1) > Interval(-1, 2)
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assert Interval(0, 1) >= Interval(0, 1)
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def test_hash(self, interval):
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# should not raise
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hash(interval)
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@pytest.mark.parametrize('left, right, expected', [
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(0, 5, 5),
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(-2, 5.5, 7.5),
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(10, 10, 0),
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(10, np.inf, np.inf),
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(-np.inf, -5, np.inf),
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(-np.inf, np.inf, np.inf),
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(Timedelta('0 days'), Timedelta('5 days'), Timedelta('5 days')),
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(Timedelta('10 days'), Timedelta('10 days'), Timedelta('0 days')),
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(Timedelta('1H10M'), Timedelta('5H5M'), Timedelta('3H55M')),
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(Timedelta('5S'), Timedelta('1H'), Timedelta('59M55S'))])
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def test_length(self, left, right, expected):
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# GH 18789
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iv = Interval(left, right)
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result = iv.length
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assert result == expected
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@pytest.mark.parametrize('left, right, expected', [
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('2017-01-01', '2017-01-06', '5 days'),
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('2017-01-01', '2017-01-01 12:00:00', '12 hours'),
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('2017-01-01 12:00', '2017-01-01 12:00:00', '0 days'),
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('2017-01-01 12:01', '2017-01-05 17:31:00', '4 days 5 hours 30 min')])
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@pytest.mark.parametrize('tz', (None, 'UTC', 'CET', 'US/Eastern'))
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def test_length_timestamp(self, tz, left, right, expected):
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# GH 18789
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iv = Interval(Timestamp(left, tz=tz), Timestamp(right, tz=tz))
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result = iv.length
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expected = Timedelta(expected)
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assert result == expected
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@pytest.mark.parametrize('left, right', [
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('a', 'z'),
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(('a', 'b'), ('c', 'd')),
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(list('AB'), list('ab')),
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(Interval(0, 1), Interval(1, 2))])
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def test_length_errors(self, left, right):
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# GH 18789
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iv = Interval(left, right)
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msg = 'cannot compute length between .* and .*'
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with tm.assert_raises_regex(TypeError, msg):
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iv.length
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def test_math_add(self, interval):
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expected = Interval(1, 2)
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actual = interval + 1
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assert expected == actual
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expected = Interval(1, 2)
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actual = 1 + interval
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assert expected == actual
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actual = interval
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actual += 1
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assert expected == actual
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msg = r"unsupported operand type\(s\) for \+"
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with tm.assert_raises_regex(TypeError, msg):
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interval + Interval(1, 2)
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with tm.assert_raises_regex(TypeError, msg):
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interval + 'foo'
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def test_math_sub(self, interval):
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expected = Interval(-1, 0)
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actual = interval - 1
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assert expected == actual
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actual = interval
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actual -= 1
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assert expected == actual
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msg = r"unsupported operand type\(s\) for -"
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with tm.assert_raises_regex(TypeError, msg):
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interval - Interval(1, 2)
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with tm.assert_raises_regex(TypeError, msg):
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interval - 'foo'
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def test_math_mult(self, interval):
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expected = Interval(0, 2)
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actual = interval * 2
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assert expected == actual
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expected = Interval(0, 2)
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actual = 2 * interval
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assert expected == actual
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actual = interval
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actual *= 2
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assert expected == actual
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msg = r"unsupported operand type\(s\) for \*"
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with tm.assert_raises_regex(TypeError, msg):
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interval * Interval(1, 2)
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msg = r"can\'t multiply sequence by non-int"
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with tm.assert_raises_regex(TypeError, msg):
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interval * 'foo'
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def test_math_div(self, interval):
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expected = Interval(0, 0.5)
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actual = interval / 2.0
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assert expected == actual
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actual = interval
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actual /= 2.0
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assert expected == actual
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msg = r"unsupported operand type\(s\) for /"
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with tm.assert_raises_regex(TypeError, msg):
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interval / Interval(1, 2)
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with tm.assert_raises_regex(TypeError, msg):
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interval / 'foo'
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def test_constructor_errors(self):
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msg = "invalid option for 'closed': foo"
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with tm.assert_raises_regex(ValueError, msg):
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Interval(0, 1, closed='foo')
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msg = 'left side of interval must be <= right side'
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with tm.assert_raises_regex(ValueError, msg):
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Interval(1, 0)
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@pytest.mark.parametrize('tz_left, tz_right', [
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(None, 'UTC'), ('UTC', None), ('UTC', 'US/Eastern')])
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def test_constructor_errors_tz(self, tz_left, tz_right):
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# GH 18538
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left = Timestamp('2017-01-01', tz=tz_left)
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right = Timestamp('2017-01-02', tz=tz_right)
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error = TypeError if com._any_none(tz_left, tz_right) else ValueError
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with pytest.raises(error):
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Interval(left, right)
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