else/Bytestring/bytestring_test.py

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2016-10-22 03:47:08 +00:00
import bytestring
import unittest
bytestring_pairs = {
100: '100.000 b',
2 ** 10: '1.000 KiB',
2 ** 20: '1.000 MiB',
2 ** 30: '1.000 GiB',
-(2 ** 30): '-1.000 GiB',
(2 ** 30) + (512 * (2 ** 20)): '1.500 GiB',
}
parsebytes_pairs = {
'100k': 102400,
'100 k': 102400,
'100 kb': 102400,
'100 kib': 102400,
'100.00KB': 102400,
'1.5 mb': 1572864,
'-1.5 mb': -1572864,
}
unit_string_cases = [
'B', 'b',
'KiB', 'kib', 'KB', 'K', 'k',
'MiB', 'mib', 'MB', 'M', 'm',
'GiB', 'gib', 'GB', 'G', 'g',
'TiB', 'tib', 'TB', 'T', 't',
'PiB', 'pib', 'PB', 'P', 'p',
'EiB', 'eib', 'EB', 'E', 'e',
'ZiB', 'zib', 'ZB', 'Z', 'z',
'YiB', 'yib', 'YB', 'Y', 'y',
]
class BytestringTest(unittest.TestCase):
def test_bytestring(self):
for (number, text) in bytestring_pairs.items():
self.assertEqual(bytestring.bytestring(number), text)
self.assertEqual(bytestring.bytestring(1024, force_unit=1), '1024.000 b')
self.assertEqual(bytestring.bytestring(1024, force_unit='b'), '1024.000 b')
def test_parsebytes(self):
for (number, text) in bytestring_pairs.items():
self.assertEqual(bytestring.parsebytes(text), number)
for (text, number) in parsebytes_pairs.items():
self.assertEqual(bytestring.parsebytes(text), number)
self.assertRaises(ValueError, bytestring.parsebytes, 'no numbers')
self.assertRaises(ValueError, bytestring.parsebytes, '100 and 300')
self.assertRaises(ValueError, bytestring.parsebytes, 'something300')
self.assertRaises(ValueError, bytestring.parsebytes, '100 wrongunit')
def test_normalize_unit_string(self):
for case in unit_string_cases:
normalized = bytestring.normalize_unit_string(case)
self.assertTrue(normalized in bytestring.REVERSED_UNIT_STRINGS)
self.assertRaises(ValueError, bytestring.normalize_unit_string, 'incorrect')
self.assertRaises(ValueError, bytestring.normalize_unit_string, 'x')
if __name__ == '__main__':
unittest.main()