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_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_scientific_exponent_displayed_as_integer():
assert numbers.format_scientific(100000, locale='en_US') == u'1E5'
def scientific(self, number):
"""Return a number formatted using scientific notation for the locale.
"""
return format_scientific(number, locale=self.locale)
