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# -*- 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
from datetime import date
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(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') == u'US Dollar'
assert numbers.get_currency_name('USD', count=2, locale='en_US') == u'US dollars'
def test_get_currency_symbol():
assert numbers.get_currency_symbol('USD', 'en_US') == u'$'
def test_get_territory_currencies():
assert numbers.get_territory_currencies('AT', date(1995, 1, 1)) == ['ATS']
assert numbers.get_territory_currencies('AT', date(2011, 1, 1)) == ['EUR']
assert numbers.get_territory_currencies('US', date(2013, 1, 1)) == ['USD']
assert sorted(numbers.get_territory_currencies('US', date(2013, 1, 1),
non_tender=True)) == ['USD', 'USN', 'USS']
assert numbers.get_territory_currencies('US', date(2013, 1, 1),
include_details=True) == [{
'currency': 'USD',
'from': date(1792, 1, 1),
'to': None,
'tender': True
}]
assert numbers.get_territory_currencies('LS', date(2013, 1, 1)) == ['ZAR', 'LSL']
assert numbers.get_territory_currencies('QO', date(2013, 1, 1)) == []
def test_get_decimal_symbol():
assert numbers.get_decimal_symbol('en_US') == u'.'
def test_get_plus_sign_symbol():
assert numbers.get_plus_sign_symbol('en_US') == u'+'
def test_get_minus_sign_symbol():
assert numbers.get_minus_sign_symbol('en_US') == u'-'
assert numbers.get_minus_sign_symbol('nl_NL') == u'-'
def test_get_exponential_symbol():
assert numbers.get_exponential_symbol('en_US') == u'E'
def test_get_group_symbol():
assert numbers.get_group_symbol('en_US') == u','
def test_format_number():
assert numbers.format_number(1099, locale='en_US') == u'1,099'
assert numbers.format_number(1099, locale='de_DE') == u'1.099'
def test_format_decimal():
assert numbers.format_decimal(1.2345, locale='en_US') == u'1.234'
assert numbers.format_decimal(1.2346, locale='en_US') == u'1.235'
assert numbers.format_decimal(-1.2346, locale='en_US') == u'-1.235'
assert numbers.format_decimal(1.2345, locale='sv_SE') == u'1,234'
assert numbers.format_decimal(1.2345, locale='de') == u'1,234'
assert numbers.format_decimal(12345.5, locale='en_US') == u'12,345.5'
def test_format_currency():
assert (numbers.format_currency(1099.98, 'USD', locale='en_US')
== u'$1,099.98')
assert (numbers.format_currency(1099.98, 'USD', locale='es_CO')
== u'1.099,98\xa0US$')
assert (numbers.format_currency(1099.98, 'EUR', locale='de_DE')
== u'1.099,98\xa0\u20ac')
assert (numbers.format_currency(1099.98, 'EUR', u'\xa4\xa4 #,##0.00',
locale='en_US')
== u'EUR 1,099.98')
assert (numbers.format_currency(1099.98, 'EUR', locale='nl_NL')
!= numbers.format_currency(-1099.98, 'EUR', locale='nl_NL'))
def test_format_percent():
assert numbers.format_percent(0.34, locale='en_US') == u'34%'
assert numbers.format_percent(25.1234, locale='en_US') == u'2,512%'
assert (numbers.format_percent(25.1234, locale='sv_SE')
== u'2\xa0512\xa0%')
assert (numbers.format_percent(25.1234, u'#,##0\u2030', locale='en_US')
== u'25,123\u2030')
def test_scientific_exponent_displayed_as_integer():
assert numbers.format_scientific(100000, locale='en_US') == u'1E5'
def test_format_scientific():
assert numbers.format_scientific(10000, locale='en_US') == u'1E4'
assert (numbers.format_scientific(1234567, u'##0E00', locale='en_US')
== 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)
def test_parse_pattern():
assert numbers.parse_pattern(u'¤#,##0.00;(¤#,##0.00)').suffix == (u'', u')')
assert numbers.parse_pattern(u'¤ #,##0.00;¤ #,##0.00-').suffix == (u'', u'-')
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