# tests for win32gui
import unittest
import win32gui
import pywin32_testutil
import operator
import array
import sys
# theoretically should be in pywin32_testutil, but this is the only place
# that currently needs such a function...
def ob2bytes(ob):
if sys.version_info < (3,0):
return str(buffer(ob))
# py3k.
return bytes(ob)
class TestPyGetString(unittest.TestCase):
def test_get_string(self):
# test invalid addresses cause a ValueError rather than crash!
self.assertRaises(ValueError, win32gui.PyGetString, 0)
self.assertRaises(ValueError, win32gui.PyGetString, 1)
self.assertRaises(ValueError, win32gui.PyGetString, 1,1)
class TestPyGetMemory(unittest.TestCase):
def test_ob(self):
# Check the PyGetMemory result and a bytes string can be compared
test_data = pywin32_testutil.str2bytes("\0\1\2\3\4\5\6")
c = array.array("b", test_data)
addr, buflen = c.buffer_info()
got = win32gui.PyGetMemory(addr, buflen)
self.failUnlessEqual(len(got), len(test_data))
self.failUnlessEqual(ob2bytes(got), test_data)
def test_memory_index(self):
# Check we can index into the buffer object returned by PyGetMemory
test_data = pywin32_testutil.str2bytes("\0\1\2\3\4\5\6")
c = array.array("b", test_data)
addr, buflen = c.buffer_info()
got = win32gui.PyGetMemory(addr, buflen)
self.failUnlessEqual(got[0], pywin32_testutil.str2bytes('\0'))
def test_memory_slice(self):
# Check we can slice the buffer object returned by PyGetMemory
test_data = pywin32_testutil.str2bytes("\0\1\2\3\4\5\6")
c = array.array("b", test_data)
addr, buflen = c.buffer_info()
got = win32gui.PyGetMemory(addr, buflen)
self.failUnlessEqual(got[0:3], pywin32_testutil.str2bytes('\0\1\2'))
def test_real_view(self):
# Do the PyGetMemory, then change the original memory, then ensure
# the initial object we fetched sees the new value.
test_data = pywin32_testutil.str2bytes("\0\1\2\3\4\5\6")
c = array.array("b", test_data)
addr, buflen = c.buffer_info()
got = win32gui.PyGetMemory(addr, buflen)
self.failUnlessEqual(got[0], pywin32_testutil.str2bytes('\0'))
new = pywin32_testutil.str2bytes('\1')
c[0] = 1
self.failUnlessEqual(got[0], new)
def test_memory_not_writable(self):
# Check the buffer object fetched by PyGetMemory isn't writable.
test_data = pywin32_testutil.str2bytes("\0\1\2\3\4\5\6")
c = array.array("b", test_data)
addr, buflen = c.buffer_info()
got = win32gui.PyGetMemory(addr, buflen)
new = pywin32_testutil.str2bytes('\1')
self.failUnlessRaises(TypeError, operator.setitem, got, 0, new)
if __name__=='__main__':
unittest.main()
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