Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / sam-t2 / devtools / v8plus / lib / python2.4 / test / test_marshal.py

#!/usr/bin/env python
# -*- coding: iso-8859-1 -*-

from test import test_support
import marshal
import sys
import unittest
import os

class IntTestCase(unittest.TestCase):
   def test_ints(self):
       # Test the full range of Python ints.
       n = sys.maxint
       while n:
           for expected in (-n, n):
               s = marshal.dumps(expected)
               got = marshal.loads(s)
               self.assertEqual(expected, got)
               marshal.dump(expected, file(test_support.TESTFN, "wb"))
               got = marshal.load(file(test_support.TESTFN, "rb"))
               self.assertEqual(expected, got)
           n = n >> 1
       os.unlink(test_support.TESTFN)

   def test_int64(self):
       # Simulate int marshaling on a 64-bit box.  This is most interesting if
       # we're running the test on a 32-bit box, of course.

       def to_little_endian_string(value, nbytes):
           bytes = []
           for i in range(nbytes):
               bytes.append(chr(value & 0xff))
               value >>= 8
           return ''.join(bytes)

       maxint64 = (1L << 63) - 1
       minint64 = -maxint64-1

       for base in maxint64, minint64, -maxint64, -(minint64 >> 1):
           while base:
               s = 'I' + to_little_endian_string(base, 8)
               got = marshal.loads(s)
               self.assertEqual(base, got)
               if base == -1:  # a fixed-point for shifting right 1
                   base = 0
               else:
                   base >>= 1

   def test_bool(self):
       for b in (True, False):
           new = marshal.loads(marshal.dumps(b))
           self.assertEqual(b, new)
           self.assertEqual(type(b), type(new))
           marshal.dump(b, file(test_support.TESTFN, "wb"))
           new = marshal.load(file(test_support.TESTFN, "rb"))
           self.assertEqual(b, new)
           self.assertEqual(type(b), type(new))

class FloatTestCase(unittest.TestCase):
   def test_floats(self):
       # Test a few floats
       small = 1e-25
       n = sys.maxint * 3.7e250
       while n > small:
           for expected in (-n, n):
               f = float(expected)
               s = marshal.dumps(f)
               got = marshal.loads(s)
               self.assertEqual(f, got)
               marshal.dump(f, file(test_support.TESTFN, "wb"))
               got = marshal.load(file(test_support.TESTFN, "rb"))
               self.assertEqual(f, got)
           n /= 123.4567

       f = 0.0
       s = marshal.dumps(f)
       got = marshal.loads(s)
       self.assertEqual(f, got)

       n = sys.maxint * 3.7e-250
       while n < small:
           for expected in (-n, n):
               f = float(expected)
               s = marshal.dumps(f)
               got = marshal.loads(s)
               self.assertEqual(f, got)
               marshal.dump(f, file(test_support.TESTFN, "wb"))
               got = marshal.load(file(test_support.TESTFN, "rb"))
               self.assertEqual(f, got)
           n *= 123.4567
       os.unlink(test_support.TESTFN)

class StringTestCase(unittest.TestCase):
   def test_unicode(self):
       for s in [u"", u"Andrè Previn", u"abc", u" "*10000]:
           new = marshal.loads(marshal.dumps(s))
           self.assertEqual(s, new)
           self.assertEqual(type(s), type(new))
           marshal.dump(s, file(test_support.TESTFN, "wb"))
           marshal.load(file(test_support.TESTFN, "rb"))
           self.assertEqual(s, new)
           self.assertEqual(type(s), type(new))
       os.unlink(test_support.TESTFN)

   def test_string(self):
       for s in ["", "Andrè Previn", "abc", " "*10000]:
           new = marshal.loads(marshal.dumps(s))
           self.assertEqual(s, new)
           self.assertEqual(type(s), type(new))
           marshal.dump(s, file(test_support.TESTFN, "wb"))
           marshal.load(file(test_support.TESTFN, "rb"))
           self.assertEqual(s, new)
           self.assertEqual(type(s), type(new))
       os.unlink(test_support.TESTFN)

   def test_buffer(self):
       for s in ["", "Andrè Previn", "abc", " "*10000]:
           b = buffer(s)
           new = marshal.loads(marshal.dumps(b))
           self.assertEqual(s, new)
           marshal.dump(b, file(test_support.TESTFN, "wb"))
           marshal.load(file(test_support.TESTFN, "rb"))
           self.assertEqual(s, new)
       os.unlink(test_support.TESTFN)

class ExceptionTestCase(unittest.TestCase):
   def test_exceptions(self):
       new = marshal.loads(marshal.dumps(StopIteration))
       self.assertEqual(StopIteration, new)

class CodeTestCase(unittest.TestCase):
   def test_code(self):
       co = ExceptionTestCase.test_exceptions.func_code
       new = marshal.loads(marshal.dumps(co))
       self.assertEqual(co, new)

class ContainerTestCase(unittest.TestCase):
   d = {'astring': 'foo@bar.baz.spam',
        'afloat': 7283.43,
        'anint': 2**20,
        'ashortlong': 2L,
        'alist': ['.zyx.41'],
        'atuple': ('.zyx.41',)*10,
        'aboolean': False,
        'aunicode': u"Andrè Previn"
        }
   def test_dict(self):
       new = marshal.loads(marshal.dumps(self.d))
       self.assertEqual(self.d, new)
       marshal.dump(self.d, file(test_support.TESTFN, "wb"))
       marshal.load(file(test_support.TESTFN, "rb"))
       self.assertEqual(self.d, new)
       os.unlink(test_support.TESTFN)

   def test_list(self):
       lst = self.d.items()
       new = marshal.loads(marshal.dumps(lst))
       self.assertEqual(lst, new)
       marshal.dump(lst, file(test_support.TESTFN, "wb"))
       marshal.load(file(test_support.TESTFN, "rb"))
       self.assertEqual(lst, new)
       os.unlink(test_support.TESTFN)

   def test_tuple(self):
       t = tuple(self.d.keys())
       new = marshal.loads(marshal.dumps(t))
       self.assertEqual(t, new)
       marshal.dump(t, file(test_support.TESTFN, "wb"))
       marshal.load(file(test_support.TESTFN, "rb"))
       self.assertEqual(t, new)
       os.unlink(test_support.TESTFN)

class BugsTestCase(unittest.TestCase):
   def test_bug_5888452(self):
       # Simple-minded check for SF 588452: Debug build crashes
       marshal.dumps([128] * 1000)

   def test_patch_873224(self):
       self.assertRaises(Exception, marshal.loads, '0')
       self.assertRaises(Exception, marshal.loads, 'f')
       self.assertRaises(Exception, marshal.loads, marshal.dumps(5L)[:-1])

   def test_version_argument(self):
       # Python 2.4.0 crashes for any call to marshal.dumps(x, y)
       self.assertEquals(marshal.loads(marshal.dumps(5, 0)), 5)
       self.assertEquals(marshal.loads(marshal.dumps(5, 1)), 5)

def test_main():
   test_support.run_unittest(IntTestCase,
                             FloatTestCase,
                             StringTestCase,
                             CodeTestCase,
                             ContainerTestCase,
                             ExceptionTestCase,
                             BugsTestCase)

if __name__ == "__main__":
   test_main()