'Test is_rar_file'

def test_is_rar_file(self):

    self.assertTrue(helpers.is_rar_file('lala.rar'))
    self.assertFalse(helpers.is_rar_file('lala.zip'))
    self.assertFalse(helpers.is_rar_file('lala.iso'))
    self.assertFalse(helpers.is_rar_file('lala.wmv'))
    self.assertFalse(helpers.is_rar_file('lala.avi'))
    self.assertFalse(helpers.is_rar_file('lala.mkv'))
    self.assertFalse(helpers.is_rar_file('lala.mp4'))
