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Feb 23, 2018
Merged

Separate TimedeltaIndex mul/div tests #19848

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92eb0e7
put TDI mul/div tests in their own class
jbrockmendel Feb 22, 2018
2fb9365
collect indexing tests symmetrically
jbrockmendel Feb 22, 2018
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108 changes: 1 addition & 107 deletions pandas/tests/indexes/datetimes/test_datetime.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
import pytest

import numpy as np
from datetime import date, timedelta, time
from datetime import date

import dateutil
import pandas as pd
Expand All @@ -18,112 +18,6 @@

class TestDatetimeIndex(object):

def test_get_loc(self):
idx = pd.date_range('2000-01-01', periods=3)

for method in [None, 'pad', 'backfill', 'nearest']:
assert idx.get_loc(idx[1], method) == 1
assert idx.get_loc(idx[1].to_pydatetime(), method) == 1
assert idx.get_loc(str(idx[1]), method) == 1

if method is not None:
assert idx.get_loc(idx[1], method,
tolerance=pd.Timedelta('0 days')) == 1

assert idx.get_loc('2000-01-01', method='nearest') == 0
assert idx.get_loc('2000-01-01T12', method='nearest') == 1

assert idx.get_loc('2000-01-01T12', method='nearest',
tolerance='1 day') == 1
assert idx.get_loc('2000-01-01T12', method='nearest',
tolerance=pd.Timedelta('1D')) == 1
assert idx.get_loc('2000-01-01T12', method='nearest',
tolerance=np.timedelta64(1, 'D')) == 1
assert idx.get_loc('2000-01-01T12', method='nearest',
tolerance=timedelta(1)) == 1
with tm.assert_raises_regex(ValueError,
'unit abbreviation w/o a number'):
idx.get_loc('2000-01-01T12', method='nearest', tolerance='foo')
with pytest.raises(KeyError):
idx.get_loc('2000-01-01T03', method='nearest', tolerance='2 hours')
with pytest.raises(
ValueError,
match='tolerance size must match target index size'):
idx.get_loc('2000-01-01', method='nearest',
tolerance=[pd.Timedelta('1day').to_timedelta64(),
pd.Timedelta('1day').to_timedelta64()])

assert idx.get_loc('2000', method='nearest') == slice(0, 3)
assert idx.get_loc('2000-01', method='nearest') == slice(0, 3)

assert idx.get_loc('1999', method='nearest') == 0
assert idx.get_loc('2001', method='nearest') == 2

with pytest.raises(KeyError):
idx.get_loc('1999', method='pad')
with pytest.raises(KeyError):
idx.get_loc('2001', method='backfill')

with pytest.raises(KeyError):
idx.get_loc('foobar')
with pytest.raises(TypeError):
idx.get_loc(slice(2))

idx = pd.to_datetime(['2000-01-01', '2000-01-04'])
assert idx.get_loc('2000-01-02', method='nearest') == 0
assert idx.get_loc('2000-01-03', method='nearest') == 1
assert idx.get_loc('2000-01', method='nearest') == slice(0, 2)

# time indexing
idx = pd.date_range('2000-01-01', periods=24, freq='H')
tm.assert_numpy_array_equal(idx.get_loc(time(12)),
np.array([12]), check_dtype=False)
tm.assert_numpy_array_equal(idx.get_loc(time(12, 30)),
np.array([]), check_dtype=False)
with pytest.raises(NotImplementedError):
idx.get_loc(time(12, 30), method='pad')

def test_get_indexer(self):
idx = pd.date_range('2000-01-01', periods=3)
exp = np.array([0, 1, 2], dtype=np.intp)
tm.assert_numpy_array_equal(idx.get_indexer(idx), exp)

target = idx[0] + pd.to_timedelta(['-1 hour', '12 hours',
'1 day 1 hour'])
tm.assert_numpy_array_equal(idx.get_indexer(target, 'pad'),
np.array([-1, 0, 1], dtype=np.intp))
tm.assert_numpy_array_equal(idx.get_indexer(target, 'backfill'),
np.array([0, 1, 2], dtype=np.intp))
tm.assert_numpy_array_equal(idx.get_indexer(target, 'nearest'),
np.array([0, 1, 1], dtype=np.intp))
tm.assert_numpy_array_equal(
idx.get_indexer(target, 'nearest',
tolerance=pd.Timedelta('1 hour')),
np.array([0, -1, 1], dtype=np.intp))
tol_raw = [pd.Timedelta('1 hour'),
pd.Timedelta('1 hour'),
pd.Timedelta('1 hour').to_timedelta64(), ]
tm.assert_numpy_array_equal(
idx.get_indexer(target, 'nearest',
tolerance=[np.timedelta64(x) for x in tol_raw]),
np.array([0, -1, 1], dtype=np.intp))
tol_bad = [pd.Timedelta('2 hour').to_timedelta64(),
pd.Timedelta('1 hour').to_timedelta64(),
'foo', ]
with pytest.raises(
ValueError, match='abbreviation w/o a number'):
idx.get_indexer(target, 'nearest', tolerance=tol_bad)
with pytest.raises(ValueError):
idx.get_indexer(idx[[0]], method='nearest', tolerance='foo')

def test_reasonable_keyerror(self):
# GH #1062
index = DatetimeIndex(['1/3/2000'])
try:
index.get_loc('1/1/2000')
except KeyError as e:
assert '2000' in str(e)

def test_roundtrip_pickle_with_tz(self):

# GH 8367
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