import unittest

from test import test_support

import base64

class LegacyBase64TestCase(unittest.TestCase):

    def test_encodestring(self):

        eq = self.assertEqual

        eq(base64.encodestring("www.python.org"), "d3d3LnB5dGhvbi5vcmc=\n")

        eq(base64.encodestring("a"), "YQ==\n")

        eq(base64.encodestring("ab"), "YWI=\n")

        eq(base64.encodestring("abc"), "YWJj\n")

        eq(base64.encodestring(""), "")

        eq(base64.encodestring("abcdefghijklmnopqrstuvwxyz"

                               "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

                               "0123456789!@#0^&*();:<>,. []{}"),

           "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"

           "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"

           "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n")

    def test_decodestring(self):

        eq = self.assertEqual

        eq(base64.decodestring("d3d3LnB5dGhvbi5vcmc=\n"), "www.python.org")

        eq(base64.decodestring("YQ==\n"), "a")

        eq(base64.decodestring("YWI=\n"), "ab")

        eq(base64.decodestring("YWJj\n"), "abc")

        eq(base64.decodestring("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"

                               "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"

                               "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n"),

           "abcdefghijklmnopqrstuvwxyz"

           "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

           "0123456789!@#0^&*();:<>,. []{}")

        eq(base64.decodestring(''), '')

    def test_encode(self):

        eq = self.assertEqual

        from cStringIO import StringIO

        infp = StringIO('abcdefghijklmnopqrstuvwxyz'

                        'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

                        '0123456789!@#0^&*();:<>,. []{}')

        outfp = StringIO()

        base64.encode(infp, outfp)

        eq(outfp.getvalue(),

           'YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE'

           'RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT'

           'Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n')

    def test_decode(self):

        from cStringIO import StringIO

        infp = StringIO('d3d3LnB5dGhvbi5vcmc=')

        outfp = StringIO()

        base64.decode(infp, outfp)

        self.assertEqual(outfp.getvalue(), 'www.python.org')

class BaseXYTestCase(unittest.TestCase):

    def test_b64encode(self):

        eq = self.assertEqual

        # Test default alphabet

        eq(base64.b64encode("www.python.org"), "d3d3LnB5dGhvbi5vcmc=")

        eq(base64.b64encode('\x00'), 'AA==')

        eq(base64.b64encode("a"), "YQ==")

        eq(base64.b64encode("ab"), "YWI=")

        eq(base64.b64encode("abc"), "YWJj")

        eq(base64.b64encode(""), "")

        eq(base64.b64encode("abcdefghijklmnopqrstuvwxyz"

                            "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

                            "0123456789!@#0^&*();:<>,. []{}"),

           "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"

           "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"

           "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==")

        # Test with arbitrary alternative characters

        eq(base64.b64encode('\xd3V\xbeo\xf7\x1d', altchars='*$'), '01a*b$cd')

        # Test standard alphabet

        eq(base64.standard_b64encode("www.python.org"), "d3d3LnB5dGhvbi5vcmc=")

        eq(base64.standard_b64encode("a"), "YQ==")

        eq(base64.standard_b64encode("ab"), "YWI=")

        eq(base64.standard_b64encode("abc"), "YWJj")

        eq(base64.standard_b64encode(""), "")

        eq(base64.standard_b64encode("abcdefghijklmnopqrstuvwxyz"

                                     "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

                                     "0123456789!@#0^&*();:<>,. []{}"),

           "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"

           "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"

           "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==")

        # Test with 'URL safe' alternative characters

        eq(base64.urlsafe_b64encode('\xd3V\xbeo\xf7\x1d'), '01a-b_cd')

    def test_b64decode(self):

        eq = self.assertEqual

        eq(base64.b64decode("d3d3LnB5dGhvbi5vcmc="), "www.python.org")

        eq(base64.b64decode('AA=='), '\x00')

        eq(base64.b64decode("YQ=="), "a")

        eq(base64.b64decode("YWI="), "ab")

        eq(base64.b64decode("YWJj"), "abc")

        eq(base64.b64decode("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"

                            "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"

                            "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ=="),

           "abcdefghijklmnopqrstuvwxyz"

           "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

           "0123456789!@#0^&*();:<>,. []{}")

        eq(base64.b64decode(''), '')

        # Test with arbitrary alternative characters

        eq(base64.b64decode('01a*b$cd', altchars='*$'), '\xd3V\xbeo\xf7\x1d')

        # Test standard alphabet

        eq(base64.standard_b64decode("d3d3LnB5dGhvbi5vcmc="), "www.python.org")

        eq(base64.standard_b64decode("YQ=="), "a")

        eq(base64.standard_b64decode("YWI="), "ab")

        eq(base64.standard_b64decode("YWJj"), "abc")

        eq(base64.standard_b64decode(""), "")

        eq(base64.standard_b64decode("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"

                                     "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"

                                     "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ=="),

           "abcdefghijklmnopqrstuvwxyz"

           "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

           "0123456789!@#0^&*();:<>,. []{}")

        # Test with 'URL safe' alternative characters

        eq(base64.urlsafe_b64decode('01a-b_cd'), '\xd3V\xbeo\xf7\x1d')

    def test_b64decode_error(self):

        self.assertRaises(TypeError, base64.b64decode, 'abc')

    def test_b32encode(self):

        eq = self.assertEqual

        eq(base64.b32encode(''), '')

        eq(base64.b32encode('\x00'), 'AA======')

        eq(base64.b32encode('a'), 'ME======')

        eq(base64.b32encode('ab'), 'MFRA====')

        eq(base64.b32encode('abc'), 'MFRGG===')

        eq(base64.b32encode('abcd'), 'MFRGGZA=')

        eq(base64.b32encode('abcde'), 'MFRGGZDF')

    def test_b32decode(self):

        eq = self.assertEqual

        eq(base64.b32decode(''), '')

        eq(base64.b32decode('AA======'), '\x00')

        eq(base64.b32decode('ME======'), 'a')

        eq(base64.b32decode('MFRA===='), 'ab')

        eq(base64.b32decode('MFRGG==='), 'abc')

        eq(base64.b32decode('MFRGGZA='), 'abcd')

        eq(base64.b32decode('MFRGGZDF'), 'abcde')

    def test_b32decode_casefold(self):

        eq = self.assertEqual

        eq(base64.b32decode('', True), '')

        eq(base64.b32decode('ME======', True), 'a')

        eq(base64.b32decode('MFRA====', True), 'ab')

        eq(base64.b32decode('MFRGG===', True), 'abc')

        eq(base64.b32decode('MFRGGZA=', True), 'abcd')

        eq(base64.b32decode('MFRGGZDF', True), 'abcde')

        # Lower cases

        eq(base64.b32decode('me======', True), 'a')

        eq(base64.b32decode('mfra====', True), 'ab')

        eq(base64.b32decode('mfrgg===', True), 'abc')

        eq(base64.b32decode('mfrggza=', True), 'abcd')

        eq(base64.b32decode('mfrggzdf', True), 'abcde')

        # Expected exceptions

        self.assertRaises(TypeError, base64.b32decode, 'me======')

        # Mapping zero and one

        eq(base64.b32decode('MLO23456'), 'b\xdd\xad\xf3\xbe')

        eq(base64.b32decode('M1023456', map01='L'), 'b\xdd\xad\xf3\xbe')

        eq(base64.b32decode('M1023456', map01='I'), 'b\x1d\xad\xf3\xbe')

    def test_b32decode_error(self):

        self.assertRaises(TypeError, base64.b32decode, 'abc')

        self.assertRaises(TypeError, base64.b32decode, 'ABCDEF==')

    def test_b16encode(self):

        eq = self.assertEqual

        eq(base64.b16encode('\x01\x02\xab\xcd\xef'), '0102ABCDEF')

        eq(base64.b16encode('\x00'), '00')

    def test_b16decode(self):

        eq = self.assertEqual

        eq(base64.b16decode('0102ABCDEF'), '\x01\x02\xab\xcd\xef')

        eq(base64.b16decode('00'), '\x00')

        # Lower case is not allowed without a flag

        self.assertRaises(TypeError, base64.b16decode, '0102abcdef')

        # Case fold

        eq(base64.b16decode('0102abcdef', True), '\x01\x02\xab\xcd\xef')

def suite():

    suite = unittest.TestSuite()

    suite.addTest(unittest.makeSuite(LegacyBase64TestCase))

    suite.addTest(unittest.makeSuite(BaseXYTestCase))

    return suite

def test_main():

    test_support.run_suite(suite())

if __name__ == '__main__':

    unittest.main(defaultTest='suite')