mirror of
https://github.com/fergalmoran/picard.git
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112 lines
4.5 KiB
Python
112 lines
4.5 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Picard, the next-generation MusicBrainz tagger
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#
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# Copyright (C) 2013, 2019-2021 Laurent Monin
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# Copyright (C) 2014, 2017 Sophist-UK
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# Copyright (C) 2017 Sambhav Kothari
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# Copyright (C) 2018 Wieland Hoffmann
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# Copyright (C) 2018-2020 Philipp Wolfer
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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import os.path
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from test.picardtestcase import PicardTestCase
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from picard.util import bytes2human
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class Testbytes2human(PicardTestCase):
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def test_00(self):
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self.run_test()
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self.assertEqual(bytes2human.binary(45682), '44.6 KiB')
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self.assertEqual(bytes2human.binary(-45682), '-44.6 KiB')
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self.assertEqual(bytes2human.binary(-45682, 2), '-44.61 KiB')
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self.assertEqual(bytes2human.decimal(45682), '45.7 kB')
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self.assertEqual(bytes2human.decimal(45682, 2), '45.68 kB')
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self.assertEqual(bytes2human.decimal(9223372036854775807), '9223.4 PB')
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self.assertEqual(bytes2human.decimal(9223372036854775807, 3), '9223.372 PB')
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self.assertEqual(bytes2human.decimal(123.6), '123 B')
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self.assertRaises(ValueError, bytes2human.decimal, 'xxx')
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self.assertRaises(ValueError, bytes2human.decimal, '123.6')
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self.assertRaises(ValueError, bytes2human.binary, 'yyy')
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self.assertRaises(ValueError, bytes2human.binary, '456yyy')
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try:
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bytes2human.decimal('123')
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except Exception as e:
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self.fail('Unexpected exception: %s' % e)
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def test_calc_unit_raises_value_error(self):
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self.assertRaises(ValueError, bytes2human.calc_unit, 1, None)
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self.assertRaises(ValueError, bytes2human.calc_unit, 1, 100)
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self.assertRaises(ValueError, bytes2human.calc_unit, 1, 999)
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self.assertRaises(ValueError, bytes2human.calc_unit, 1, 1023)
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self.assertRaises(ValueError, bytes2human.calc_unit, 1, 1025)
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self.assertEqual((1.0, 'B'), bytes2human.calc_unit(1, 1024))
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self.assertEqual((1.0, 'B'), bytes2human.calc_unit(1, 1000))
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def run_test(self, lang='C', create_test_data=False):
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"""
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Compare data generated with sample files
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Setting create_test_data to True will generated sample files
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from code execution (developer-only, check carefully)
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"""
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filename = os.path.join('test', 'data', 'b2h_test_%s.dat' % lang)
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testlist = self._create_testlist()
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if create_test_data:
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self._save_expected_to(filename, testlist)
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expected = self._read_expected_from(filename)
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self.assertEqual(testlist, expected)
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if create_test_data:
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# be sure it is disabled
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self.fail('!!! UNSET create_test_data mode !!! (%s)' % filename)
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@staticmethod
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def _create_testlist():
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values = [0, 1]
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for n in (1000, 1024):
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p = 1
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for e in range(0, 6):
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p *= n
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for x in (0.1, 0.5, 0.99, 0.9999, 1, 1.5):
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values.append(int(p * x))
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list = []
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for x in sorted(values):
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list.append(";".join([str(x), bytes2human.decimal(x),
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bytes2human.binary(x),
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bytes2human.short_string(x, 1024, 2)]))
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return list
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@staticmethod
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def _save_expected_to(path, a_list):
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with open(path, 'wb') as f:
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f.writelines([line + "\n" for line in a_list])
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f.close()
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@staticmethod
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def _read_expected_from(path):
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with open(path, 'r') as f:
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lines = [line.rstrip("\n") for line in f.readlines()]
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f.close()
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return lines
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def test_calc_unit(self):
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self.assertEqual(bytes2human.calc_unit(12456, 1024), (12.1640625, 'KiB'))
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self.assertEqual(bytes2human.calc_unit(-12456, 1000), (-12.456, 'kB'))
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self.assertRaises(ValueError, bytes2human.calc_unit, 0, 1001)
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