1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
| """
| Tests for the following offsets:
| - BMonthBegin
| - BMonthEnd
| """
| from __future__ import annotations
|
| from datetime import datetime
|
| import pytest
|
| import pandas as pd
| from pandas.tests.tseries.offsets.common import (
| assert_is_on_offset,
| assert_offset_equal,
| )
|
| from pandas.tseries.offsets import (
| BMonthBegin,
| BMonthEnd,
| )
|
|
| @pytest.mark.parametrize("n", [-2, 1])
| @pytest.mark.parametrize(
| "cls",
| [
| BMonthBegin,
| BMonthEnd,
| ],
| )
| def test_apply_index(cls, n):
| offset = cls(n=n)
| rng = pd.date_range(start="1/1/2000", periods=100000, freq="T")
| ser = pd.Series(rng)
|
| res = rng + offset
| assert res.freq is None # not retained
| assert res[0] == rng[0] + offset
| assert res[-1] == rng[-1] + offset
| res2 = ser + offset
| # apply_index is only for indexes, not series, so no res2_v2
| assert res2.iloc[0] == ser.iloc[0] + offset
| assert res2.iloc[-1] == ser.iloc[-1] + offset
|
|
| class TestBMonthBegin:
| def test_offsets_compare_equal(self):
| # root cause of #456
| offset1 = BMonthBegin()
| offset2 = BMonthBegin()
| assert not offset1 != offset2
|
| offset_cases = []
| offset_cases.append(
| (
| BMonthBegin(),
| {
| datetime(2008, 1, 1): datetime(2008, 2, 1),
| datetime(2008, 1, 31): datetime(2008, 2, 1),
| datetime(2006, 12, 29): datetime(2007, 1, 1),
| datetime(2006, 12, 31): datetime(2007, 1, 1),
| datetime(2006, 9, 1): datetime(2006, 10, 2),
| datetime(2007, 1, 1): datetime(2007, 2, 1),
| datetime(2006, 12, 1): datetime(2007, 1, 1),
| },
| )
| )
|
| offset_cases.append(
| (
| BMonthBegin(0),
| {
| datetime(2008, 1, 1): datetime(2008, 1, 1),
| datetime(2006, 10, 2): datetime(2006, 10, 2),
| datetime(2008, 1, 31): datetime(2008, 2, 1),
| datetime(2006, 12, 29): datetime(2007, 1, 1),
| datetime(2006, 12, 31): datetime(2007, 1, 1),
| datetime(2006, 9, 15): datetime(2006, 10, 2),
| },
| )
| )
|
| offset_cases.append(
| (
| BMonthBegin(2),
| {
| datetime(2008, 1, 1): datetime(2008, 3, 3),
| datetime(2008, 1, 15): datetime(2008, 3, 3),
| datetime(2006, 12, 29): datetime(2007, 2, 1),
| datetime(2006, 12, 31): datetime(2007, 2, 1),
| datetime(2007, 1, 1): datetime(2007, 3, 1),
| datetime(2006, 11, 1): datetime(2007, 1, 1),
| },
| )
| )
|
| offset_cases.append(
| (
| BMonthBegin(-1),
| {
| datetime(2007, 1, 1): datetime(2006, 12, 1),
| datetime(2008, 6, 30): datetime(2008, 6, 2),
| datetime(2008, 6, 1): datetime(2008, 5, 1),
| datetime(2008, 3, 10): datetime(2008, 3, 3),
| datetime(2008, 12, 31): datetime(2008, 12, 1),
| datetime(2006, 12, 29): datetime(2006, 12, 1),
| datetime(2006, 12, 30): datetime(2006, 12, 1),
| datetime(2007, 1, 1): datetime(2006, 12, 1),
| },
| )
| )
|
| @pytest.mark.parametrize("case", offset_cases)
| def test_offset(self, case):
| offset, cases = case
| for base, expected in cases.items():
| assert_offset_equal(offset, base, expected)
|
| on_offset_cases = [
| (BMonthBegin(), datetime(2007, 12, 31), False),
| (BMonthBegin(), datetime(2008, 1, 1), True),
| (BMonthBegin(), datetime(2001, 4, 2), True),
| (BMonthBegin(), datetime(2008, 3, 3), True),
| ]
|
| @pytest.mark.parametrize("case", on_offset_cases)
| def test_is_on_offset(self, case):
| offset, dt, expected = case
| assert_is_on_offset(offset, dt, expected)
|
|
| class TestBMonthEnd:
| def test_normalize(self):
| dt = datetime(2007, 1, 1, 3)
|
| result = dt + BMonthEnd(normalize=True)
| expected = dt.replace(hour=0) + BMonthEnd()
| assert result == expected
|
| def test_offsets_compare_equal(self):
| # root cause of #456
| offset1 = BMonthEnd()
| offset2 = BMonthEnd()
| assert not offset1 != offset2
|
| offset_cases = []
| offset_cases.append(
| (
| BMonthEnd(),
| {
| datetime(2008, 1, 1): datetime(2008, 1, 31),
| datetime(2008, 1, 31): datetime(2008, 2, 29),
| datetime(2006, 12, 29): datetime(2007, 1, 31),
| datetime(2006, 12, 31): datetime(2007, 1, 31),
| datetime(2007, 1, 1): datetime(2007, 1, 31),
| datetime(2006, 12, 1): datetime(2006, 12, 29),
| },
| )
| )
|
| offset_cases.append(
| (
| BMonthEnd(0),
| {
| datetime(2008, 1, 1): datetime(2008, 1, 31),
| datetime(2008, 1, 31): datetime(2008, 1, 31),
| datetime(2006, 12, 29): datetime(2006, 12, 29),
| datetime(2006, 12, 31): datetime(2007, 1, 31),
| datetime(2007, 1, 1): datetime(2007, 1, 31),
| },
| )
| )
|
| offset_cases.append(
| (
| BMonthEnd(2),
| {
| datetime(2008, 1, 1): datetime(2008, 2, 29),
| datetime(2008, 1, 31): datetime(2008, 3, 31),
| datetime(2006, 12, 29): datetime(2007, 2, 28),
| datetime(2006, 12, 31): datetime(2007, 2, 28),
| datetime(2007, 1, 1): datetime(2007, 2, 28),
| datetime(2006, 11, 1): datetime(2006, 12, 29),
| },
| )
| )
|
| offset_cases.append(
| (
| BMonthEnd(-1),
| {
| datetime(2007, 1, 1): datetime(2006, 12, 29),
| datetime(2008, 6, 30): datetime(2008, 5, 30),
| datetime(2008, 12, 31): datetime(2008, 11, 28),
| datetime(2006, 12, 29): datetime(2006, 11, 30),
| datetime(2006, 12, 30): datetime(2006, 12, 29),
| datetime(2007, 1, 1): datetime(2006, 12, 29),
| },
| )
| )
|
| @pytest.mark.parametrize("case", offset_cases)
| def test_offset(self, case):
| offset, cases = case
| for base, expected in cases.items():
| assert_offset_equal(offset, base, expected)
|
| on_offset_cases = [
| (BMonthEnd(), datetime(2007, 12, 31), True),
| (BMonthEnd(), datetime(2008, 1, 1), False),
| ]
|
| @pytest.mark.parametrize("case", on_offset_cases)
| def test_is_on_offset(self, case):
| offset, dt, expected = case
| assert_is_on_offset(offset, dt, expected)
|
|
