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# -*- coding: utf-8 -*-
#
# Copyright (C) 2007 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/.
try:
from decimal import Decimal
have_decimal = True
except ImportError:
have_decimal = False
import doctest
import unittest
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')
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')
if have_decimal:
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')
if have_decimal:
fmt = numbers.format_scientific(Decimal('12345'), '#.##E+00 m/s',
locale='en_US')
self.assertEqual(fmt, '1.23E+04 m/s')
def suite():
suite = unittest.TestSuite()
suite.addTest(doctest.DocTestSuite(numbers))
suite.addTest(unittest.makeSuite(FormatDecimalTestCase))
return suite
if __name__ == '__main__':
unittest.main(defaultTest='suite')
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