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
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
|
# -*- coding: utf-8 -*-
#
# Copyright (C) 2007-2011 Edgewall Software
# All rights reserved.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at http://babel.edgewall.org/wiki/License.
#
# This software consists of voluntary contributions made by many
# individuals. For the exact contribution history, see the revision
# history and logs, available at http://babel.edgewall.org/log/.
from decimal import Decimal
import unittest
import pytest
import six
from babel import numbers
class FormatDecimalTestCase(unittest.TestCase):
def test_patterns(self):
self.assertEqual(numbers.format_decimal(12345, '##0',
locale='en_US'), '12345')
self.assertEqual(numbers.format_decimal(6.5, '0.00', locale='sv'),
'6,50')
self.assertEqual(numbers.format_decimal(10.0**20,
'#.00', locale='en_US'),
'100000000000000000000.00')
# regression test for #183, fraction digits were not correctly cutted
# if the input was a float value and the value had more than 7
# significant digits
self.assertEqual(six.u('12,345,678.05'),
numbers.format_decimal(12345678.051, '#,##0.00',
locale='en_US'))
def test_subpatterns(self):
self.assertEqual(numbers.format_decimal(-12345, '#,##0.##;-#',
locale='en_US'), '-12,345')
self.assertEqual(numbers.format_decimal(-12345, '#,##0.##;(#)',
locale='en_US'), '(12,345)')
def test_default_rounding(self):
"""
Testing Round-Half-Even (Banker's rounding)
A '5' is rounded to the closest 'even' number
"""
self.assertEqual(numbers.format_decimal(5.5, '0', locale='sv'), '6')
self.assertEqual(numbers.format_decimal(6.5, '0', locale='sv'), '6')
self.assertEqual(numbers.format_decimal(6.5, '0', locale='sv'), '6')
self.assertEqual(numbers.format_decimal(1.2325, locale='sv'), '1,232')
self.assertEqual(numbers.format_decimal(1.2335, locale='sv'), '1,234')
def test_significant_digits(self):
"""Test significant digits patterns"""
self.assertEqual(numbers.format_decimal(123004, '@@',locale='en_US'),
'120000')
self.assertEqual(numbers.format_decimal(1.12, '@', locale='sv'), '1')
self.assertEqual(numbers.format_decimal(1.1, '@@', locale='sv'), '1,1')
self.assertEqual(numbers.format_decimal(1.1, '@@@@@##', locale='sv'),
'1,1000')
self.assertEqual(numbers.format_decimal(0.0001, '@@@', locale='sv'),
'0,000100')
self.assertEqual(numbers.format_decimal(0.0001234, '@@@', locale='sv'),
'0,000123')
self.assertEqual(numbers.format_decimal(0.0001234, '@@@#',locale='sv'),
'0,0001234')
self.assertEqual(numbers.format_decimal(0.0001234, '@@@#',locale='sv'),
'0,0001234')
self.assertEqual(numbers.format_decimal(0.12345, '@@@',locale='sv'),
'0,123')
self.assertEqual(numbers.format_decimal(3.14159, '@@##',locale='sv'),
'3,142')
self.assertEqual(numbers.format_decimal(1.23004, '@@##',locale='sv'),
'1,23')
self.assertEqual(numbers.format_decimal(1230.04, '@@,@@',locale='en_US'),
'12,30')
self.assertEqual(numbers.format_decimal(123.41, '@@##',locale='en_US'),
'123.4')
self.assertEqual(numbers.format_decimal(1, '@@',locale='en_US'),
'1.0')
self.assertEqual(numbers.format_decimal(0, '@',locale='en_US'),
'0')
self.assertEqual(numbers.format_decimal(0.1, '@',locale='en_US'),
'0.1')
self.assertEqual(numbers.format_decimal(0.1, '@#',locale='en_US'),
'0.1')
self.assertEqual(numbers.format_decimal(0.1, '@@', locale='en_US'),
'0.10')
def test_decimals(self):
"""Test significant digits patterns"""
self.assertEqual(numbers.format_decimal(Decimal('1.2345'),
'#.00', locale='en_US'),
'1.23')
self.assertEqual(numbers.format_decimal(Decimal('1.2345000'),
'#.00', locale='en_US'),
'1.23')
self.assertEqual(numbers.format_decimal(Decimal('1.2345000'),
'@@', locale='en_US'),
'1.2')
self.assertEqual(numbers.format_decimal(Decimal('12345678901234567890.12345'),
'#.00', locale='en_US'),
'12345678901234567890.12')
def test_scientific_notation(self):
fmt = numbers.format_scientific(0.1, '#E0', locale='en_US')
self.assertEqual(fmt, '1E-1')
fmt = numbers.format_scientific(0.01, '#E0', locale='en_US')
self.assertEqual(fmt, '1E-2')
fmt = numbers.format_scientific(10, '#E0', locale='en_US')
self.assertEqual(fmt, '1E1')
fmt = numbers.format_scientific(1234, '0.###E0', locale='en_US')
self.assertEqual(fmt, '1.234E3')
fmt = numbers.format_scientific(1234, '0.#E0', locale='en_US')
self.assertEqual(fmt, '1.2E3')
# Exponent grouping
fmt = numbers.format_scientific(12345, '##0.####E0', locale='en_US')
self.assertEqual(fmt, '12.345E3')
# Minimum number of int digits
fmt = numbers.format_scientific(12345, '00.###E0', locale='en_US')
self.assertEqual(fmt, '12.345E3')
fmt = numbers.format_scientific(-12345.6, '00.###E0', locale='en_US')
self.assertEqual(fmt, '-12.346E3')
fmt = numbers.format_scientific(-0.01234, '00.###E0', locale='en_US')
self.assertEqual(fmt, '-12.34E-3')
# Custom pattern suffic
fmt = numbers.format_scientific(123.45, '#.##E0 m/s', locale='en_US')
self.assertEqual(fmt, '1.23E2 m/s')
# Exponent patterns
fmt = numbers.format_scientific(123.45, '#.##E00 m/s', locale='en_US')
self.assertEqual(fmt, '1.23E02 m/s')
fmt = numbers.format_scientific(0.012345, '#.##E00 m/s', locale='en_US')
self.assertEqual(fmt, '1.23E-02 m/s')
fmt = numbers.format_scientific(Decimal('12345'), '#.##E+00 m/s',
locale='en_US')
self.assertEqual(fmt, '1.23E+04 m/s')
# 0 (see ticket #99)
fmt = numbers.format_scientific(0, '#E0', locale='en_US')
self.assertEqual(fmt, '0E0')
def test_formatting_of_very_small_decimals(self):
# previously formatting very small decimals could lead to a type error
# because the Decimal->string conversion was too simple (see #214)
number = Decimal("7E-7")
fmt = numbers.format_decimal(number, format="@@@", locale='en_US')
self.assertEqual('0.000000700', fmt)
class BankersRoundTestCase(unittest.TestCase):
def test_round_to_nearest_integer(self):
self.assertEqual(1, numbers.bankersround(Decimal('0.5001')))
def test_round_to_even_for_two_nearest_integers(self):
self.assertEqual(0, numbers.bankersround(Decimal('0.5')))
self.assertEqual(2, numbers.bankersround(Decimal('1.5')))
self.assertEqual(-2, numbers.bankersround(Decimal('-2.5')))
self.assertEqual(0, numbers.bankersround(Decimal('0.05'), ndigits=1))
self.assertEqual(Decimal('0.2'), numbers.bankersround(Decimal('0.15'), ndigits=1))
class NumberParsingTestCase(unittest.TestCase):
def test_can_parse_decimals(self):
self.assertEqual(Decimal('1099.98'),
numbers.parse_decimal('1,099.98', locale='en_US'))
self.assertEqual(Decimal('1099.98'),
numbers.parse_decimal('1.099,98', locale='de'))
self.assertRaises(numbers.NumberFormatError,
lambda: numbers.parse_decimal('2,109,998', locale='de'))
def test_get_currency_name():
assert numbers.get_currency_name('USD', locale='en_US') == six.u('US Dollar')
assert numbers.get_currency_name('USD', count=2, locale='en_US') == six.u('US dollars')
def test_get_currency_symbol():
assert numbers.get_currency_symbol('USD', 'en_US') == six.u('$')
def test_get_decimal_symbol():
assert numbers.get_decimal_symbol('en_US') == six.u('.')
def test_get_plus_sign_symbol():
assert numbers.get_plus_sign_symbol('en_US') == six.u('+')
def test_get_minus_sign_symbol():
assert numbers.get_minus_sign_symbol('en_US') == six.u('-')
def test_get_exponential_symbol():
assert numbers.get_exponential_symbol('en_US') == six.u('E')
def test_get_group_symbol():
assert numbers.get_group_symbol('en_US') == six.u(',')
def test_format_number():
assert numbers.format_number(1099, locale='en_US') == six.u('1,099')
assert numbers.format_number(1099, locale='de_DE') == six.u('1.099')
def test_format_decimal():
assert numbers.format_decimal(1.2345, locale='en_US') == six.u('1.234')
assert numbers.format_decimal(1.2346, locale='en_US') == six.u('1.235')
assert numbers.format_decimal(-1.2346, locale='en_US') == six.u('-1.235')
assert numbers.format_decimal(1.2345, locale='sv_SE') == six.u('1,234')
assert numbers.format_decimal(1.2345, locale='de') == six.u('1,234')
assert numbers.format_decimal(12345.5, locale='en_US') == six.u('12,345.5')
def test_format_currency():
assert (numbers.format_currency(1099.98, 'USD', locale='en_US')
== six.u('$1,099.98'))
assert (numbers.format_currency(1099.98, 'USD', locale='es_CO')
== six.u('1.099,98\xa0US$'))
assert (numbers.format_currency(1099.98, 'EUR', locale='de_DE')
== six.u('1.099,98\xa0\u20ac'))
assert (numbers.format_currency(1099.98, 'EUR', six.u('\xa4\xa4 #,##0.00'),
locale='en_US')
== six.u('EUR 1,099.98'))
def test_format_percent():
assert numbers.format_percent(0.34, locale='en_US') == six.u('34%')
assert numbers.format_percent(25.1234, locale='en_US') == six.u('2,512%')
assert (numbers.format_percent(25.1234, locale='sv_SE')
== six.u('2\xa0512\xa0%'))
assert (numbers.format_percent(25.1234, six.u('#,##0\u2030'), locale='en_US')
== six.u('25,123\u2030'))
def test_scientific_exponent_displayed_as_integer():
assert numbers.format_scientific(100000, locale='en_US') == six.u('1E5')
def test_format_scientific():
assert numbers.format_scientific(10000, locale='en_US') == six.u('1E4')
assert (numbers.format_scientific(1234567, six.u('##0E00'), locale='en_US')
== six.u('1.23E06'))
def test_parse_number():
assert numbers.parse_number('1,099', locale='en_US') == 1099
assert numbers.parse_number('1.099', locale='de_DE') == 1099
with pytest.raises(numbers.NumberFormatError) as excinfo:
numbers.parse_number('1.099,98', locale='de')
assert excinfo.value.args[0] == "'1.099,98' is not a valid number"
def test_parse_decimal():
assert (numbers.parse_decimal('1,099.98', locale='en_US')
== Decimal('1099.98'))
assert numbers.parse_decimal('1.099,98', locale='de') == Decimal('1099.98')
with pytest.raises(numbers.NumberFormatError) as excinfo:
numbers.parse_decimal('2,109,998', locale='de')
assert excinfo.value.args[0] == "'2,109,998' is not a valid decimal number"
def test_bankersround():
assert numbers.bankersround(5.5, 0) == 6.0
assert numbers.bankersround(6.5, 0) == 6.0
assert numbers.bankersround(-6.5, 0) == -6.0
assert numbers.bankersround(1234.0, -2) == 1200.0
def test_parse_grouping():
assert numbers.parse_grouping('##') == (1000, 1000)
assert numbers.parse_grouping('#,###') == (3, 3)
assert numbers.parse_grouping('#,####,###') == (3, 4)
|
