Blame tests/test_pagure_lib_encoding_utils.py

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# -*- coding: utf-8 -*-
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"""
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Tests for :module:`pagure.lib.encoding_utils`.
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"""
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import chardet
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import os
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import unittest
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import sys
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sys.path.insert(0, os.path.join(os.path.dirname(
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    os.path.abspath(__file__)), '..'))
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from pagure.lib import encoding_utils
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class TestGuessEncoding(unittest.TestCase):
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    def test_guess_encoding_ascii(self):
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        """
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        Assert when ascii-only data is provided ascii is the guessed encoding.
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        """
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        data = u'Twas bryllyg, and the slythy toves did gyre and gymble'
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        result = encoding_utils.guess_encoding(data.encode('ascii'))
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        self.assertEqual(result, 'ascii')
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    def test_guess_encoding_favor_utf_8(self):
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        """
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        Test that strings that could be UTF-8 or ISO-8859-* result in UTF-8.
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        python-chardet-3.0.4-2.fc27.noarch detects it as ISO-8859-9
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        python-chardet-2.2.1-1.el7_1.noarch detects it as ISO-8859-2
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        """
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        data = u'Šabata'.encode('utf-8')
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        result = encoding_utils.guess_encoding(data)
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        chardet_result = chardet.detect(data)
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        self.assertEqual(result, 'utf-8')
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        if chardet.__version__[0] == '3':
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            self.assertEqual(chardet_result['encoding'], 'ISO-8859-9')
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        else:
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            self.assertEqual(chardet_result['encoding'], 'ISO-8859-2')
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    def test_guess_encoding_no_data(self):
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        """ Test encoding_utils.guess_encoding() with an empty string """
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        result = encoding_utils.guess_encoding(u''.encode('utf-8'))
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        self.assertEqual(result, 'ascii')
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class TestGuessEncodings(unittest.TestCase):
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    def test_guess_encodings(self):
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        """ Test the encoding_utils.guess_encodings() method. """
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        data = u'Šabata'.encode('utf-8')
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        result = encoding_utils.guess_encodings(data)
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        chardet_result = chardet.detect(data)
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        if chardet.__version__[0] == '3':
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            # The first three have different confidence values
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            self.assertListEqual(
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                [encoding.encoding for encoding in result][:3],
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                ['utf-8', 'ISO-8859-9', 'ISO-8859-1']
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            )
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            # This is the one with the least confidence
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            self.assertEqual(result[-1].encoding, 'windows-1255')
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            # The values in the middle of the list all have the same confidence
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            # value and can't be sorted reliably: use sets.
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            self.assertEqual(
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                set([encoding.encoding for encoding in result]),
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                set(['utf-8', 'ISO-8859-9', 'ISO-8859-1', 'MacCyrillic',
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                     'IBM866', 'TIS-620', 'EUC-JP', 'EUC-KR', 'GB2312',
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                     'KOI8-R', 'Big5', 'IBM855', 'ISO-8859-7', 'SHIFT_JIS',
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                     'windows-1253', 'CP949', 'EUC-TW', 'ISO-8859-5',
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                     'windows-1251', 'windows-1255'])
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            )
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            self.assertEqual(chardet_result['encoding'], 'ISO-8859-9')
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        else:
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            self.assertListEqual(
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                [encoding.encoding for encoding in result],
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                ['utf-8', 'ISO-8859-2', 'windows-1252'])
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            self.assertEqual(chardet_result['encoding'], 'ISO-8859-2')
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    def test_guess_encodings_no_data(self):
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        """ Test encoding_utils.guess_encodings() with an emtpy string """
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        result = encoding_utils.guess_encodings(u''.encode('utf-8'))
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        self.assertEqual(
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            [encoding.encoding for encoding in result],
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            ['ascii'])
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class TestDecode(unittest.TestCase):
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    def test_decode(self):
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        """ Test encoding_utils.decode() """
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        data = u'Šabata'
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        self.assertEqual(data, encoding_utils.decode(data.encode('utf-8')))
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if __name__ == '__main__':
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    unittest.main(verbosity=2)