instrumentation/next-share/BaseLib/Test/Core/Subtitles/MetadataDomainObjects/test_Langugages.py

   1 # Written by Andrea Reale
   2 # see LICENSE.txt for license information
   3
   4 import unittest
   5 from BaseLib.Core.Subtitles.MetadataDomainObjects.Languages import *
   6 from BaseLib.Core.Subtitles.MetadataDomainObjects.Languages \
   7 import _loadLanguages
   8 import os.path
   9
  10 RES_DIR = os.path.join('..','..','..','subtitles_test_res')
  11
  12
  13 class LanguagesTest(unittest.TestCase):
  14
  15     #32 correct language mappings
  16     PATH_TO_TEST_LANGUAGES = 'subs_languages.csv'
  17     #one description is missing in the csv file
  18     PATH_TO_TEST_LANGUAGES_WRONG1 = 'wrong_subs_languages.1.csv'
  19     #one character code is invalid in the csv file
  20     PATH_TO_TEST_LANGUAGES_WRONG2 = "wrong_subs_languages.2.csv"
  21
  22     def test_loadLangugas(self):
  23         listOfLanguages = _loadLanguages(os.path.join(RES_DIR, LanguagesTest.PATH_TO_TEST_LANGUAGES))
  24         self.assertTrue(len(listOfLanguages) == 32)
  25         for key, val in listOfLanguages.iteritems():
  26             self.assertTrue(len(key) == 3)
  27             self.assertTrue(val is not None)
  28
  29         self.assertRaises(ValueError,_loadLanguages, \
  30             os.path.join(RES_DIR, LanguagesTest.PATH_TO_TEST_LANGUAGES_WRONG1))
  31
  32         self.assertRaises(ValueError,_loadLanguages, \
  33             os.path.join(RES_DIR, LanguagesTest.PATH_TO_TEST_LANGUAGES_WRONG2))
  34
  35     def testLanguageInstance(self):
  36         langInstance = Languages()
  37         self.assertTrue(len(langInstance.supportedLanguages) == 32)
  38         self.assertTrue(len(langInstance.langMappings) == 32)
  39         #check if the mappings are all distinct values
  40         bitmasksSet = set(langInstance.langMappings.values())
  41         self.assertTrue(len(bitmasksSet) == 32)
  42
  43     def testCorrectMapping(self):
  44         langInstance = Languages()
  45         #checking if they are distinct is not sufficient since  they
  46         #can be assigned wrong values
  47         fullMask = 0
  48         for mask in langInstance.langMappings.values():
  49             fullMask = fullMask ^ mask
  50
  51         #since I know there are 32 different language masks
  52         self.assertEqual(0xFFFFFFFF, fullMask)
  53
  54     def testLangCodesToMask(self):
  55         langInstance = Languages()
  56
  57         codes = ["eng", "nld", "ita"]
  58         # eng is 0x40
  59         # nld is 0x80000
  60         # ita is 0x2000
  61         mask = langInstance.langCodesToMask(codes)
  62         self.assertEquals((0x40 | 0x80000 | 0x2000), mask)
  63
  64     def testLangCodesToMaskEmpty(self):
  65         langInstance = Languages()
  66         codes = []
  67         mask = langInstance.langCodesToMask(codes)
  68         self.assertEquals(0,mask)
  69
  70
  71
  72     def testInvalidLangCodesToMask(self):
  73         langInstance = Languages()
  74
  75         #gne is an invalid language code
  76         codes = ["eng", "nld", "gne"]
  77
  78         self.assertRaises(ValueError, langInstance.langCodesToMask, codes)
  79
  80     def testMaskToLangCodes(self):
  81         langInstance = Languages()
  82
  83         eng, nld, ita = 0x40, 0x80000, 0x2000
  84         mask = eng | nld | ita
  85
  86         codes = langInstance.maskToLangCodes(mask)
  87
  88         self.assertEquals(set(codes), set(["eng","nld","ita"]))
  89
  90         remask = 0
  91         for code in codes:
  92             remask = remask | langInstance.langMappings[code]
  93
  94         self.assertEquals(mask, remask)
  95
  96     def testMaskToLangCodesLongerMask(self):
  97         langInstance = Languages()
  98         mask = 0x1FFFFFFFF #36 bits!
  99
 100         self.assertRaises(AssertionError, langInstance.maskToLangCodes,(mask,))
 101
 102
 103
 104 def suite():
 105     return unittest.TestLoader().loadTestsFromTestCase(LanguagesTest)
 106
 107 if __name__ == "__main__":
 108     #import sys;sys.argv = ['', 'Test.test_loadLangugas']
 109     unittest.main()