from __future__ import generators
# Some raw iter tests. Some "high-level" iterator tests can be found in
# testvb.py and testOutlook.py
import sys
import unittest
from win32com.client.gencache import EnsureDispatch
from win32com.client import Dispatch
import win32com.server.util
import win32com.test.util
import pythoncom
def yield_iter(iter):
while 1:
yield iter.next()
class _BaseTestCase(win32com.test.util.TestCase):
def test_enumvariant_vb(self):
ob, iter = self.iter_factory()
got=[]
for v in iter:
got.append(v)
self.assertEquals(got, self.expected_data)
def test_yield(self):
ob, i = self.iter_factory()
got=[]
for v in yield_iter(iter(i)):
got.append(v)
self.assertEquals(got, self.expected_data)
def _do_test_nonenum(self, object):
try:
for i in object:
pass
self.fail("Could iterate over a non-iterable object")
except TypeError:
pass # this is expected.
self.assertRaises(TypeError, iter, object)
self.assertRaises(AttributeError, getattr, object, "next")
def test_nonenum_wrapper(self):
# Check our raw PyIDispatch
ob = self.object._oleobj_
try:
for i in ob:
pass
self.fail("Could iterate over a non-iterable object")
except TypeError:
pass # this is expected.
self.assertRaises(TypeError, iter, ob)
self.assertRaises(AttributeError, getattr, ob, "next")
# And our Dispatch wrapper
ob = self.object
try:
for i in ob:
pass
self.fail("Could iterate over a non-iterable object")
except TypeError:
pass # this is expected.
# Note that as our object may be dynamic, we *do* have a __getitem__
# method, meaning we *can* call iter() on the object. In this case
# actual iteration is what fails.
# So either the 'iter(); will raise a type error, or an attempt to
# fetch it
try:
iter(ob).next()
self.fail("Expected a TypeError fetching this iterator")
except TypeError:
pass
# And it should never have a 'next' method
self.assertRaises(AttributeError, getattr, ob, "next")
class VBTestCase(_BaseTestCase):
def setUp(self):
def factory():
# Our VB test harness exposes a property with IEnumVariant.
ob = self.object.EnumerableCollectionProperty
for i in self.expected_data:
ob.Add(i)
# Get the raw IEnumVARIANT.
invkind = pythoncom.DISPATCH_METHOD | pythoncom.DISPATCH_PROPERTYGET
iter = ob._oleobj_.InvokeTypes(pythoncom.DISPID_NEWENUM,0,invkind,(13, 10),())
return ob, iter.QueryInterface(pythoncom.IID_IEnumVARIANT)
# We *need* generated dispatch semantics, so dynamic __getitem__ etc
# don't get in the way of our tests.
self.object = EnsureDispatch("PyCOMVBTest.Tester")
self.expected_data = [1, "Two", "3"]
self.iter_factory = factory
def tearDown(self):
self.object = None
# Test our client semantics, but using a wrapped Python list object.
# This has the effect of re-using our client specific tests, but in this
# case is exercising the server side.
class SomeObject:
_public_methods_ = ["GetCollection"]
def __init__(self, data):
self.data = data
def GetCollection(self):
return win32com.server.util.NewCollection(self.data)
class WrappedPythonCOMServerTestCase(_BaseTestCase):
def setUp(self):
def factory():
ob = self.object.GetCollection()
flags = pythoncom.DISPATCH_METHOD | pythoncom.DISPATCH_PROPERTYGET
enum = ob._oleobj_.Invoke(pythoncom.DISPID_NEWENUM, 0, flags, 1)
return ob, enum.QueryInterface(pythoncom.IID_IEnumVARIANT)
self.expected_data = [1,'Two',3]
sv = win32com.server.util.wrap(SomeObject(self.expected_data))
self.object = Dispatch(sv)
self.iter_factory = factory
def tearDown(self):
self.object = None
def suite():
# We dont want our base class run
suite = unittest.TestSuite()
for item in globals().itervalues():
if type(item)==type(unittest.TestCase) and \
issubclass(item, unittest.TestCase) and \
item != _BaseTestCase:
suite.addTest(unittest.makeSuite(item))
return suite
if __name__=='__main__':
unittest.main(argv=sys.argv + ['suite'])
|