# Copyright (C) 2007, 2009 Canonical Ltd # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA """Tests for bencode structured encoding""" from bzrlib import tests def load_tests(standard_tests, module, loader): suite, _ = tests.permute_tests_for_extension(standard_tests, loader, 'bzrlib.util._bencode_py', 'bzrlib._bencode_pyx') return suite class TestBencodeDecode(tests.TestCase): module = None def _check(self, expected, source): self.assertEquals(expected, self.module.bdecode(source)) def _run_check_error(self, exc, bad): """Check that bdecoding a string raises a particular exception.""" self.assertRaises(exc, self.module.bdecode, bad) def test_int(self): self._check(0, 'i0e') self._check(4, 'i4e') self._check(123456789, 'i123456789e') self._check(-10, 'i-10e') self._check(int('1' * 1000), 'i' + ('1' * 1000) + 'e') def test_long(self): self._check(12345678901234567890L, 'i12345678901234567890e') self._check(-12345678901234567890L, 'i-12345678901234567890e') def test_malformed_int(self): self._run_check_error(ValueError, 'ie') self._run_check_error(ValueError, 'i-e') self._run_check_error(ValueError, 'i-010e') self._run_check_error(ValueError, 'i-0e') self._run_check_error(ValueError, 'i00e') self._run_check_error(ValueError, 'i01e') self._run_check_error(ValueError, 'i-03e') self._run_check_error(ValueError, 'i') self._run_check_error(ValueError, 'i123') self._run_check_error(ValueError, 'i341foo382e') def test_string(self): self._check('', '0:') self._check('abc', '3:abc') self._check('1234567890', '10:1234567890') def test_large_string(self): self.assertRaises(ValueError, self.module.bdecode, "2147483639:foo") def test_malformed_string(self): self._run_check_error(ValueError, '10:x') self._run_check_error(ValueError, '10:') self._run_check_error(ValueError, '10') self._run_check_error(ValueError, '01:x') self._run_check_error(ValueError, '00:') self._run_check_error(ValueError, '35208734823ljdahflajhdf') self._run_check_error(ValueError, '432432432432432:foo') self._run_check_error(ValueError, ' 1:x') # leading whitespace self._run_check_error(ValueError, '-1:x') # negative self._run_check_error(ValueError, '1 x') # space vs colon self._run_check_error(ValueError, '1x') # missing colon self._run_check_error(ValueError, ('1' * 1000) + ':') def test_list(self): self._check([], 'le') self._check(['', '', ''], 'l0:0:0:e') self._check([1, 2, 3], 'li1ei2ei3ee') self._check(['asd', 'xy'], 'l3:asd2:xye') self._check([['Alice', 'Bob'], [2, 3]], 'll5:Alice3:Bobeli2ei3eee') def test_list_deepnested(self): self._run_check_error(RuntimeError, ("l" * 10000) + ("e" * 10000)) def test_malformed_list(self): self._run_check_error(ValueError, 'l') self._run_check_error(ValueError, 'l01:ae') self._run_check_error(ValueError, 'l0:') self._run_check_error(ValueError, 'li1e') self._run_check_error(ValueError, 'l-3:e') def test_dict(self): self._check({}, 'de') self._check({'':3}, 'd0:i3ee') self._check({'age': 25, 'eyes': 'blue'}, 'd3:agei25e4:eyes4:bluee') self._check({'spam.mp3': {'author': 'Alice', 'length': 100000}}, 'd8:spam.mp3d6:author5:Alice6:lengthi100000eee') def test_dict_deepnested(self): self._run_check_error(RuntimeError, ("d0:" * 10000) + 'i1e' + ("e" * 10000)) def test_malformed_dict(self): self._run_check_error(ValueError, 'd') self._run_check_error(ValueError, 'defoobar') self._run_check_error(ValueError, 'd3:fooe') self._run_check_error(ValueError, 'di1e0:e') self._run_check_error(ValueError, 'd1:b0:1:a0:e') self._run_check_error(ValueError, 'd1:a0:1:a0:e') self._run_check_error(ValueError, 'd0:0:') self._run_check_error(ValueError, 'd0:') self._run_check_error(ValueError, 'd432432432432432432:e') def test_empty_string(self): self.assertRaises(ValueError, self.module.bdecode, '') def test_junk(self): self._run_check_error(ValueError, 'i6easd') self._run_check_error(ValueError, '2:abfdjslhfld') self._run_check_error(ValueError, '0:0:') self._run_check_error(ValueError, 'leanfdldjfh') def test_unknown_object(self): self.assertRaises(ValueError, self.module.bdecode, 'relwjhrlewjh') def test_unsupported_type(self): self._run_check_error(TypeError, float(1.5)) self._run_check_error(TypeError, None) self._run_check_error(TypeError, lambda x: x) self._run_check_error(TypeError, object) self._run_check_error(TypeError, u"ie") def test_decoder_type_error(self): self.assertRaises(TypeError, self.module.bdecode, 1) class TestBencodeEncode(tests.TestCase): module = None def _check(self, expected, source): self.assertEquals(expected, self.module.bencode(source)) def test_int(self): self._check('i4e', 4) self._check('i0e', 0) self._check('i-10e', -10) def test_long(self): self._check('i12345678901234567890e', 12345678901234567890L) self._check('i-12345678901234567890e', -12345678901234567890L) def test_string(self): self._check('0:', '') self._check('3:abc', 'abc') self._check('10:1234567890', '1234567890') def test_list(self): self._check('le', []) self._check('li1ei2ei3ee', [1, 2, 3]) self._check('ll5:Alice3:Bobeli2ei3eee', [['Alice', 'Bob'], [2, 3]]) def test_list_as_tuple(self): self._check('le', ()) self._check('li1ei2ei3ee', (1, 2, 3)) self._check('ll5:Alice3:Bobeli2ei3eee', (('Alice', 'Bob'), (2, 3))) def test_list_deep_nested(self): top = [] l = top for i in range(10000): l.append([]) l = l[0] self.assertRaises(RuntimeError, self.module.bencode, top) def test_dict(self): self._check('de', {}) self._check('d3:agei25e4:eyes4:bluee', {'age': 25, 'eyes': 'blue'}) self._check('d8:spam.mp3d6:author5:Alice6:lengthi100000eee', {'spam.mp3': {'author': 'Alice', 'length': 100000}}) def test_dict_deep_nested(self): d = top = {} for i in range(10000): d[''] = {} d = d[''] self.assertRaises(RuntimeError, self.module.bencode, top) def test_bencached(self): self._check('i3e', self.module.Bencached(self.module.bencode(3))) def test_invalid_dict(self): self.assertRaises(TypeError, self.module.bencode, {1:"foo"}) def test_bool(self): self._check('i1e', True) self._check('i0e', False)