Update of /cvsroot/pywin32/pywin32/com/win32com/test
In directory sc8-pr-cvs1:/tmp/cvs-serv22188
Added Files:
testIterators.py
Log Message:
test iterator semantics.
--- NEW FILE: testIterators.py ---
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
import pythoncom
def yield_iter(iter):
while 1:
yield iter.next()
class _BaseTestCase(unittest.TestCase):
def test_enumvariant_vb(self):
ob, iter = self.iter_factory()
num=0
for v in iter:
num += 1
self.failUnless(num==self.expected_length, "didnt get the %d items (got %d)" % (self.expected_length, num))
def test_yield(self):
ob, i = self.iter_factory()
num=0
for v in yield_iter(iter(i)):
num += 1
self.failUnless(num==self.expected_length, "didnt get the %d items (got %d)" % (self.expected_length, num))
def test_nonenum(self):
try:
for i in self.object:
pass
self.fail("Could iterate over a non-iterable object")
except TypeError:
pass # this is expected.
self.assertRaises(TypeError, iter, self.object)
self.assertRaises(AttributeError, getattr, self.object, "next")
class VBTestCase(_BaseTestCase):
def setUp(self):
def factory():
# Our VB test harness exposes a property with IEnumVariant.
ob = self.object.EnumerableCollectionProperty
ob.Add(1)
ob.Add("Two")
ob.Add("3")
# 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.iter_factory = factory
self.expected_length = 3
def tearDown(self):
self.object = None
def suite():
# We dont want our base class run
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(VBTestCase))
return suite
if __name__=='__main__':
unittest.main(argv=sys.argv + ['suite'])
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