The Tor Browser: python/mozbuild/mozpack/test/test_mozjar.py@925c144e1f1f (annotated)

python/mozbuild/mozpack/test/test_mozjar.py@925c144e1f1f (annotated)

python/mozbuild/mozpack/test/test_mozjar.py

Fri, 16 Jan 2015 18:13:44 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Fri, 16 Jan 2015 18:13:44 +0100
branch: TOR_BUG_9701
changeset 14: 925c144e1f1f
permissions: -rw-r--r--

Integrate suggestion from review to improve consistency with existing code.

 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 from mozpack.mozjar import (
     JarReaderError,
     JarWriterError,
     JarStruct,
     JarReader,
     JarWriter,
     Deflater,
     JarLog,
 )
 from collections import OrderedDict
 from mozpack.test.test_files import MockDest
 import unittest
 import mozunit
 from cStringIO import StringIO
 from urllib import pathname2url
 import mozpack.path
 import os
 class TestJarStruct(unittest.TestCase):
     class Foo(JarStruct):
         MAGIC = 0x01020304
         STRUCT = OrderedDict([
             ('foo', 'uint32'),
             ('bar', 'uint16'),
             ('qux', 'uint16'),
             ('length', 'uint16'),
             ('length2', 'uint16'),
             ('string', 'length'),
             ('string2', 'length2'),
         ])
     def test_jar_struct(self):
         foo = TestJarStruct.Foo()
         self.assertEqual(foo.signature, TestJarStruct.Foo.MAGIC)
         self.assertEqual(foo['foo'], 0)
         self.assertEqual(foo['bar'], 0)
         self.assertEqual(foo['qux'], 0)
         self.assertFalse('length' in foo)
         self.assertFalse('length2' in foo)
         self.assertEqual(foo['string'], '')
         self.assertEqual(foo['string2'], '')
         self.assertEqual(foo.size, 16)
         foo['foo'] = 0x42434445
         foo['bar'] = 0xabcd
         foo['qux'] = 0xef01
         foo['string'] = 'abcde'
         foo['string2'] = 'Arbitrarily long string'
         serialized = b'\x04\x03\x02\x01\x45\x44\x43\x42\xcd\xab\x01\xef' + \
                      b'\x05\x00\x17\x00abcdeArbitrarily long string'
         self.assertEqual(foo.size, len(serialized))
         foo_serialized = foo.serialize()
         self.assertEqual(foo_serialized, serialized)
     def do_test_read_jar_struct(self, data):
         self.assertRaises(JarReaderError, TestJarStruct.Foo, data)
         self.assertRaises(JarReaderError, TestJarStruct.Foo, data[2:])
         foo = TestJarStruct.Foo(data[1:])
         self.assertEqual(foo['foo'], 0x45444342)
         self.assertEqual(foo['bar'], 0xcdab)
         self.assertEqual(foo['qux'], 0x01ef)
         self.assertFalse('length' in foo)
         self.assertFalse('length2' in foo)
         self.assertEqual(foo['string'], '012345')
         self.assertEqual(foo['string2'], '67')
     def test_read_jar_struct(self):
         data = b'\x00\x04\x03\x02\x01\x42\x43\x44\x45\xab\xcd\xef' + \
                b'\x01\x06\x00\x02\x0001234567890'
         self.do_test_read_jar_struct(data)
     def test_read_jar_struct_memoryview(self):
         data = b'\x00\x04\x03\x02\x01\x42\x43\x44\x45\xab\xcd\xef' + \
                b'\x01\x06\x00\x02\x0001234567890'
         self.do_test_read_jar_struct(memoryview(data))
 class TestDeflater(unittest.TestCase):
     def wrap(self, data):
         return data
     def test_deflater_no_compress(self):
         deflater = Deflater(False)
         deflater.write(self.wrap('abc'))
         self.assertFalse(deflater.compressed)
         self.assertEqual(deflater.uncompressed_size, 3)
         self.assertEqual(deflater.compressed_size, deflater.uncompressed_size)
         self.assertEqual(deflater.compressed_data, 'abc')
         self.assertEqual(deflater.crc32, 0x352441c2)
     def test_deflater_compress_no_gain(self):
         deflater = Deflater(True)
         deflater.write(self.wrap('abc'))
         self.assertFalse(deflater.compressed)
         self.assertEqual(deflater.uncompressed_size, 3)
         self.assertEqual(deflater.compressed_size, deflater.uncompressed_size)
         self.assertEqual(deflater.compressed_data, 'abc')
         self.assertEqual(deflater.crc32, 0x352441c2)
     def test_deflater_compress(self):
         deflater = Deflater(True)
         deflater.write(self.wrap('aaaaaaaaaaaaanopqrstuvwxyz'))
         self.assertTrue(deflater.compressed)
         self.assertEqual(deflater.uncompressed_size, 26)
         self.assertNotEqual(deflater.compressed_size,
                             deflater.uncompressed_size)
         self.assertEqual(deflater.crc32, 0xd46b97ed)
         # The CRC is the same as when not compressed
         deflater = Deflater(False)
         self.assertFalse(deflater.compressed)
         deflater.write(self.wrap('aaaaaaaaaaaaanopqrstuvwxyz'))
         self.assertEqual(deflater.crc32, 0xd46b97ed)
 class TestDeflaterMemoryView(TestDeflater):
     def wrap(self, data):
         return memoryview(data)
 class TestJar(unittest.TestCase):
     optimize = False
     def test_jar(self):
         s = MockDest()
         with JarWriter(fileobj=s, optimize=self.optimize) as jar:
             jar.add('foo', 'foo')
             self.assertRaises(JarWriterError, jar.add, 'foo', 'bar')
             jar.add('bar', 'aaaaaaaaaaaaanopqrstuvwxyz')
             jar.add('baz/qux', 'aaaaaaaaaaaaanopqrstuvwxyz', False)
         files = [j for j in JarReader(fileobj=s)]
         self.assertEqual(files[0].filename, 'foo')
         self.assertFalse(files[0].compressed)
         self.assertEqual(files[0].read(), 'foo')
         self.assertEqual(files[1].filename, 'bar')
         self.assertTrue(files[1].compressed)
         self.assertEqual(files[1].read(), 'aaaaaaaaaaaaanopqrstuvwxyz')
         self.assertEqual(files[2].filename, 'baz/qux')
         self.assertFalse(files[2].compressed)
         self.assertEqual(files[2].read(), 'aaaaaaaaaaaaanopqrstuvwxyz')
         s = MockDest()
         with JarWriter(fileobj=s, compress=False,
                        optimize=self.optimize) as jar:
             jar.add('bar', 'aaaaaaaaaaaaanopqrstuvwxyz')
             jar.add('foo', 'foo')
             jar.add('baz/qux', 'aaaaaaaaaaaaanopqrstuvwxyz', True)
         jar = JarReader(fileobj=s)
         files = [j for j in jar]
         self.assertEqual(files[0].filename, 'bar')
         self.assertFalse(files[0].compressed)
         self.assertEqual(files[0].read(), 'aaaaaaaaaaaaanopqrstuvwxyz')
         self.assertEqual(files[1].filename, 'foo')
         self.assertFalse(files[1].compressed)
         self.assertEqual(files[1].read(), 'foo')
         self.assertEqual(files[2].filename, 'baz/qux')
         self.assertTrue(files[2].compressed)
         self.assertEqual(files[2].read(), 'aaaaaaaaaaaaanopqrstuvwxyz')
         self.assertTrue('bar' in jar)
         self.assertTrue('foo' in jar)
         self.assertFalse('baz' in jar)
         self.assertTrue('baz/qux' in jar)
         self.assertTrue(jar['bar'], files[1])
         self.assertTrue(jar['foo'], files[0])
         self.assertTrue(jar['baz/qux'], files[2])
         s.seek(0)
         jar = JarReader(fileobj=s)
         self.assertTrue('bar' in jar)
         self.assertTrue('foo' in jar)
         self.assertFalse('baz' in jar)
         self.assertTrue('baz/qux' in jar)
         files[0].seek(0)
         self.assertEqual(jar['bar'].filename, files[0].filename)
         self.assertEqual(jar['bar'].compressed, files[0].compressed)
         self.assertEqual(jar['bar'].read(), files[0].read())
         files[1].seek(0)
         self.assertEqual(jar['foo'].filename, files[1].filename)
         self.assertEqual(jar['foo'].compressed, files[1].compressed)
         self.assertEqual(jar['foo'].read(), files[1].read())
         files[2].seek(0)
         self.assertEqual(jar['baz/qux'].filename, files[2].filename)
         self.assertEqual(jar['baz/qux'].compressed, files[2].compressed)
         self.assertEqual(jar['baz/qux'].read(), files[2].read())
     def test_rejar(self):
         s = MockDest()
         with JarWriter(fileobj=s, optimize=self.optimize) as jar:
             jar.add('foo', 'foo')
             jar.add('bar', 'aaaaaaaaaaaaanopqrstuvwxyz')
             jar.add('baz/qux', 'aaaaaaaaaaaaanopqrstuvwxyz', False)
         new = MockDest()
         with JarWriter(fileobj=new, optimize=self.optimize) as jar:
             for j in JarReader(fileobj=s):
                 jar.add(j.filename, j)
         jar = JarReader(fileobj=new)
         files = [j for j in jar]
         self.assertEqual(files[0].filename, 'foo')
         self.assertFalse(files[0].compressed)
         self.assertEqual(files[0].read(), 'foo')
         self.assertEqual(files[1].filename, 'bar')
         self.assertTrue(files[1].compressed)
         self.assertEqual(files[1].read(), 'aaaaaaaaaaaaanopqrstuvwxyz')
         self.assertEqual(files[2].filename, 'baz/qux')
         self.assertTrue(files[2].compressed)
         self.assertEqual(files[2].read(), 'aaaaaaaaaaaaanopqrstuvwxyz')
 class TestOptimizeJar(TestJar):
     optimize = True
 class TestPreload(unittest.TestCase):
     def test_preload(self):
         s = MockDest()
         with JarWriter(fileobj=s) as jar:
             jar.add('foo', 'foo')
             jar.add('bar', 'abcdefghijklmnopqrstuvwxyz')
             jar.add('baz/qux', 'aaaaaaaaaaaaanopqrstuvwxyz')
         jar = JarReader(fileobj=s)
         self.assertEqual(jar.last_preloaded, None)
         with JarWriter(fileobj=s) as jar:
             jar.add('foo', 'foo')
             jar.add('bar', 'abcdefghijklmnopqrstuvwxyz')
             jar.add('baz/qux', 'aaaaaaaaaaaaanopqrstuvwxyz')
             jar.preload(['baz/qux', 'bar'])
         jar = JarReader(fileobj=s)
         self.assertEqual(jar.last_preloaded, 'bar')
         files = [j for j in jar]
         self.assertEqual(files[0].filename, 'baz/qux')
         self.assertEqual(files[1].filename, 'bar')
         self.assertEqual(files[2].filename, 'foo')
 class TestJarLog(unittest.TestCase):
     def test_jarlog(self):
         base = 'file:' + pathname2url(os.path.abspath(os.curdir))
         s = StringIO('\n'.join([
             base + '/bar/baz.jar first',
             base + '/bar/baz.jar second',
             base + '/bar/baz.jar third',
             base + '/bar/baz.jar second',
             base + '/bar/baz.jar second',
             'jar:' + base + '/qux.zip!/omni.ja stuff',
             base + '/bar/baz.jar first',
             'jar:' + base + '/qux.zip!/omni.ja other/stuff',
             'jar:' + base + '/qux.zip!/omni.ja stuff',
             base + '/bar/baz.jar third',
             'jar:jar:' + base + '/qux.zip!/baz/baz.jar!/omni.ja nested/stuff',
             'jar:jar:jar:' + base + '/qux.zip!/baz/baz.jar!/foo.zip!/omni.ja' +
             ' deeply/nested/stuff',
         ]))
         log = JarLog(fileobj=s)
         canonicalize = lambda p: \
             mozpack.path.normsep(os.path.normcase(os.path.realpath(p)))
         baz_jar = canonicalize('bar/baz.jar')
         qux_zip = canonicalize('qux.zip')
         self.assertEqual(set(log.keys()), set([
             baz_jar,
             (qux_zip, 'omni.ja'),
             (qux_zip, 'baz/baz.jar', 'omni.ja'),
             (qux_zip, 'baz/baz.jar', 'foo.zip', 'omni.ja'),
         ]))
         self.assertEqual(log[baz_jar], [
             'first',
             'second',
             'third',
         ])
         self.assertEqual(log[(qux_zip, 'omni.ja')], [
             'stuff',
             'other/stuff',
         ])
         self.assertEqual(log[(qux_zip, 'baz/baz.jar', 'omni.ja')],
                          ['nested/stuff'])
         self.assertEqual(log[(qux_zip, 'baz/baz.jar', 'foo.zip',
                               'omni.ja')], ['deeply/nested/stuff'])
         # The above tests also indirectly check the value returned by
         # JarLog.canonicalize for various jar: and file: urls, but
         # JarLog.canonicalize also supports plain paths.
         self.assertEqual(JarLog.canonicalize(os.path.abspath('bar/baz.jar')),
                          baz_jar)
         self.assertEqual(JarLog.canonicalize('bar/baz.jar'), baz_jar)
 if __name__ == '__main__':
     mozunit.main()

The Tor Browser / annotate

python/mozbuild/mozpack/test/test_mozjar.py@925c144e1f1f (annotated)

python/mozbuild/mozpack/test/test_mozjar.py