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# Test code for a VB Program.
#
# This requires the PythonCOM VB Test Harness.
#
import sys
import winerror
import pythoncom, win32com.client, win32com.client.dynamic, win32com.client.gencache
from win32com.server.util import NewCollection, wrap
from win32com.test import util
from pywin32_testutil import str2memory
import traceback
# for debugging
useDispatcher = None
## import win32com.server.dispatcher
## useDispatcher = win32com.server.dispatcher.DefaultDebugDispatcher
error = RuntimeError
# Set up a COM object that VB will do some callbacks on. This is used
# to test byref params for gateway IDispatch.
class TestObject:
_public_methods_ = ["CallbackVoidOneByRef","CallbackResultOneByRef", "CallbackVoidTwoByRef",
"CallbackString","CallbackResultOneByRefButReturnNone",
"CallbackVoidOneByRefButReturnNone",
"CallbackArrayResult", "CallbackArrayResultOneArrayByRef",
"CallbackArrayResultWrongSize"
]
def CallbackVoidOneByRef(self, intVal):
return intVal + 1
def CallbackResultOneByRef(self, intVal):
return intVal, intVal + 1
def CallbackVoidTwoByRef(self, int1, int2):
return int1+int2, int1-int2
def CallbackString(self, strVal):
return 0, strVal + " has visited Python"
def CallbackArrayResult(self, arrayVal):
ret = []
for i in arrayVal:
ret.append(i+1)
# returning as a list forces it be processed as a single result
# (rather than a tuple, where it may be interpreted as
# multiple results for byref unpacking)
return ret
def CallbackArrayResultWrongSize(self, arrayVal):
return list(arrayVal[:-1])
def CallbackArrayResultOneArrayByRef(self, arrayVal):
ret = []
for i in arrayVal:
ret.append(i+1)
# See above for list processing.
return list(arrayVal), ret
def CallbackResultOneByRefButReturnNone(self, intVal):
return
def CallbackVoidOneByRefButReturnNone(self, intVal):
return
def TestVB( vbtest, bUseGenerated ):
vbtest.LongProperty = -1
if vbtest.LongProperty != -1:
raise error("Could not set the long property correctly.")
vbtest.IntProperty = 10
if vbtest.IntProperty != 10:
raise error("Could not set the integer property correctly.")
vbtest.VariantProperty = 10
if vbtest.VariantProperty != 10:
raise error("Could not set the variant integer property correctly.")
vbtest.VariantProperty = str2memory('raw\0data')
if vbtest.VariantProperty != str2memory('raw\0data'):
raise error("Could not set the variant buffer property correctly.")
vbtest.StringProperty = "Hello from Python"
if vbtest.StringProperty != "Hello from Python":
raise error("Could not set the string property correctly.")
vbtest.VariantProperty = "Hello from Python"
if vbtest.VariantProperty != "Hello from Python":
raise error("Could not set the variant string property correctly.")
vbtest.VariantProperty = (1.0, 2.0, 3.0)
if vbtest.VariantProperty != (1.0, 2.0, 3.0):
raise error("Could not set the variant property to an array of floats correctly - '%s'." % (vbtest.VariantProperty,))
TestArrays(vbtest, bUseGenerated)
TestStructs(vbtest)
TestCollections(vbtest)
assert vbtest.TakeByValObject(vbtest)==vbtest
# Python doesnt support PUTREF properties without a typeref
# (although we could)
if bUseGenerated:
ob = vbtest.TakeByRefObject(vbtest)
assert ob[0]==vbtest and ob[1]==vbtest
# A property that only has PUTREF defined.
vbtest.VariantPutref = vbtest
if vbtest.VariantPutref._oleobj_!= vbtest._oleobj_:
raise error("Could not set the VariantPutref property correctly.")
# Cant test further types for this VariantPutref, as only
# COM objects can be stored ByRef.
# A "set" type property - only works for generated.
# VB recognizes a collection via a few "private" interfaces that we
# could later build support in for.
# vbtest.CollectionProperty = NewCollection((1,2,"3", "Four"))
# if vbtest.CollectionProperty != (1,2,"3", "Four"):
# raise error("Could not set the Collection property correctly - got back " + str(vbtest.CollectionProperty))
# These are sub's that have a single byref param
# Result should be just the byref.
if vbtest.IncrementIntegerParam(1) != 2:
raise error("Could not pass an integer byref")
# Sigh - we cant have *both* "ommited byref" and optional args
# We really have to opt that args nominated as optional work as optional
# rather than simply all byrefs working as optional.
# if vbtest.IncrementIntegerParam() != 1:
# raise error("Could not pass an omitted integer byref")
if vbtest.IncrementVariantParam(1) != 2:
raise error("Could not pass an int VARIANT byref:"+str(vbtest.IncrementVariantParam(1)))
if vbtest.IncrementVariantParam(1.5) != 2.5:
raise error("Could not pass a float VARIANT byref")
# Can't test IncrementVariantParam with the param omitted as it
# it not declared in the VB code as "Optional"
callback_ob = wrap(TestObject(), useDispatcher = useDispatcher)
vbtest.DoSomeCallbacks(callback_ob)
ret = vbtest.PassIntByVal(1)
if ret != 2:
raise error("Could not increment the integer - "+str(ret))
TestVBInterface(vbtest)
# Python doesnt support byrefs without some sort of generated support.
if bUseGenerated:
# This is a VB function that takes a single byref
# Hence 2 return values - function and byref.
ret = vbtest.PassIntByRef(1)
if ret != (1,2):
raise error("Could not increment the integer - "+str(ret))
# Check you can leave a byref arg blank.
# see above
# ret = vbtest.PassIntByRef()
# if ret != (0,1):
# raise error("Could not increment the integer with default arg- "+str(ret))
def _DoTestCollection(vbtest, col_name, expected):
# It sucks that some objects allow "Count()", but others "Count"
def _getcount(ob):
r = getattr(ob, "Count")
if type(r)!=type(0):
return r()
return r
c = getattr(vbtest, col_name)
check = []
for item in c:
check.append(item)
if check != list(expected):
raise error("Collection %s didn't have %r (had %r)" % (col_name, expected, check))
# Just looping over the collection again works (ie, is restartable)
check = []
for item in c:
check.append(item)
if check != list(expected):
raise error("Collection 2nd time around %s didn't have %r (had %r)" % (col_name, expected, check))
# Check we can get it via iter()
i = iter(getattr(vbtest, col_name))
check = []
for item in i:
check.append(item)
if check != list(expected):
raise error("Collection iterator %s didn't have %r 2nd time around (had %r)" % (col_name, expected, check))
# but an iterator is not restartable
check = []
for item in i:
check.append(item)
if check != []:
raise error("2nd time around Collection iterator %s wasn't empty (had %r)" % (col_name, check))
# Check len()==Count()
c = getattr(vbtest, col_name)
if len(c) != _getcount(c):
raise error("Collection %s __len__(%r) wasn't==Count(%r)" % (col_name, len(c), _getcount(c)))
# Check we can do it with zero based indexing.
c = getattr(vbtest, col_name)
check = []
for i in range(_getcount(c)):
check.append(c[i])
if check != list(expected):
raise error("Collection %s didn't have %r (had %r)" % (col_name, expected, check))
# Check we can do it with our old "Skip/Next" methods.
c = getattr(vbtest, col_name)._NewEnum()
check = []
while 1:
n = c.Next()
if not n:
break
check.append(n[0])
if check != list(expected):
raise error("Collection %s didn't have %r (had %r)" % (col_name, expected, check))
def TestCollections(vbtest):
_DoTestCollection(vbtest, "CollectionProperty", [1,"Two", "3"])
# zero based indexing works for simple VB collections.
if vbtest.CollectionProperty[0] != 1:
raise error("The CollectionProperty[0] element was not the default value")
_DoTestCollection(vbtest, "EnumerableCollectionProperty", [])
vbtest.EnumerableCollectionProperty.Add(1)
vbtest.EnumerableCollectionProperty.Add("Two")
vbtest.EnumerableCollectionProperty.Add("3")
_DoTestCollection(vbtest, "EnumerableCollectionProperty", [1,"Two", "3"])
def _DoTestArray(vbtest, data, expected_exception = None):
try:
vbtest.ArrayProperty = data
if expected_exception is not None:
raise error("Expected '%s'" % expected_exception)
except expected_exception:
return
got = vbtest.ArrayProperty
if got != data:
raise error(
"Could not set the array data correctly - got %r, expected %r"
% (got, data))
def TestArrays(vbtest, bUseGenerated):
# Try and use a safe array (note that the VB code has this declared as a VARIANT
# and I cant work out how to force it to use native arrays!
# (NOTE Python will convert incoming arrays to tuples, so we pass a tuple, even tho
# a list works fine - just makes it easier for us to compare the result!
# Empty array
_DoTestArray(vbtest, ())
# Empty child array
_DoTestArray(vbtest, ((), ()))
# ints
_DoTestArray(vbtest, tuple(range(1,100)))
# Floats
_DoTestArray(vbtest, (1.0, 2.0, 3.0))
# Strings.
_DoTestArray(vbtest, tuple("Hello from Python".split()))
# Date and Time?
# COM objects.
_DoTestArray(vbtest, (vbtest, vbtest))
# Mixed
_DoTestArray(vbtest, (1, 2.0, "3"))
# Array alements containing other arrays
_DoTestArray(vbtest, (1,(vbtest, vbtest),("3","4")))
# Multi-dimensional
_DoTestArray(vbtest, (( (1,2,3), (4,5,6) )))
_DoTestArray(vbtest, (( (vbtest,vbtest,vbtest), (vbtest,vbtest,vbtest) )))
# Another dimension!
arrayData = ( ((1,2),(3,4),(5,6)), ((7,8),(9,10),(11,12)) )
arrayData = ( ((vbtest,vbtest),(vbtest,vbtest),(vbtest,vbtest)),
((vbtest,vbtest),(vbtest,vbtest),(vbtest,vbtest)) )
_DoTestArray(vbtest, arrayData)
# Check that when a '__getitem__ that fails' object is the first item
# in the structure, we don't mistake it for a sequence.
_DoTestArray(vbtest, (vbtest, 2.0, "3"))
_DoTestArray(vbtest, (1, 2.0, vbtest))
# Pass arbitrarily sized arrays - these used to fail, but thanks to
# Stefan Schukat, they now work!
expected_exception = None
arrayData = ( ((1,2,1),(3,4),(5,6)), ((7,8),(9,10),(11,12)) )
_DoTestArray(vbtest, arrayData, expected_exception)
arrayData = ( ((vbtest,vbtest),), ((vbtest,),))
_DoTestArray(vbtest, arrayData, expected_exception)
# Pass bad data - last item wrong size
arrayData = ( ((1,2),(3,4),(5,6,8)), ((7,8),(9,10),(11,12)) )
_DoTestArray(vbtest, arrayData, expected_exception)
# byref safearray results with incorrect size.
callback_ob = wrap(TestObject(), useDispatcher = useDispatcher)
print("** Expecting a 'ValueError' exception to be printed next:")
try:
vbtest.DoCallbackSafeArraySizeFail(callback_ob)
except pythoncom.com_error as exc:
assert exc.excepinfo[1] == "Python COM Server Internal Error", "Didnt get the correct exception - '%s'" % (exc,)
if bUseGenerated:
# This one is a bit strange! The array param is "ByRef", as VB insists.
# The function itself also _returns_ the arram param.
# Therefore, Python sees _2_ result values - one for the result,
# and one for the byref.
testData = "Mark was here".split()
resultData, byRefParam = vbtest.PassSAFEARRAY(testData)
if testData != list(resultData):
raise error("The safe array data was not what we expected - got " + str(resultData))
if testData != list(byRefParam):
raise error("The safe array data was not what we expected - got " + str(byRefParam))
testData = [1.0, 2.0, 3.0]
resultData, byRefParam = vbtest.PassSAFEARRAYVariant(testData)
assert testData == list(byRefParam)
assert testData == list(resultData)
testData = ["hi", "from", "Python"]
resultData, byRefParam = vbtest.PassSAFEARRAYVariant(testData)
assert testData == list(byRefParam), "Expected '%s', got '%s'" % (testData, list(byRefParam))
assert testData == list(resultData), "Expected '%s', got '%s'" % (testData, list(resultData))
# This time, instead of an explicit str() for 1.5, we just
# pass Unicode, so the result should compare equal
testData = [1, 2.0, "3"]
resultData, byRefParam = vbtest.PassSAFEARRAYVariant(testData)
assert testData == list(byRefParam)
assert testData == list(resultData)
print("Array tests passed")
def TestStructs(vbtest):
try:
vbtest.IntProperty = "One"
raise error("Should have failed by now")
except pythoncom.com_error as exc:
if exc.hresult != winerror.DISP_E_TYPEMISMATCH:
raise error("Expected DISP_E_TYPEMISMATCH")
s = vbtest.StructProperty
if s.int_val != 99 or str(s.str_val) != "hello":
raise error("The struct value was not correct")
s.str_val = "Hi from Python"
s.int_val = 11
if s.int_val != 11 or str(s.str_val) != "Hi from Python":
raise error("The struct value didnt persist!")
if s.sub_val.int_val != 66 or str(s.sub_val.str_val) != "sub hello":
raise error("The sub-struct value was not correct")
sub = s.sub_val
sub.int_val = 22
if sub.int_val != 22:
print(sub.int_val)
raise error("The sub-struct value didnt persist!")
if s.sub_val.int_val != 22:
print(s.sub_val.int_val)
raise error("The sub-struct value (re-fetched) didnt persist!")
if s.sub_val.array_val[0].int_val != 0 or str(s.sub_val.array_val[0].str_val) != "zero":
print(s.sub_val.array_val[0].int_val)
raise error("The array element wasnt correct")
s.sub_val.array_val[0].int_val = 99
s.sub_val.array_val[1].int_val = 66
if s.sub_val.array_val[0].int_val != 99 or \
s.sub_val.array_val[1].int_val != 66:
print(s.sub_val.array_val[0].int_val)
raise error("The array element didnt persist.")
# Now pass the struct back to VB
vbtest.StructProperty = s
# And get it back again
s = vbtest.StructProperty
if s.int_val != 11 or str(s.str_val) != "Hi from Python":
raise error("After sending to VB, the struct value didnt persist!")
if s.sub_val.array_val[0].int_val != 99:
raise error("After sending to VB, the struct array value didnt persist!")
# Now do some object equality tests.
assert s==s
assert s!=None
if sys.version_info > (3,0):
try:
s < None
raise error("Expected type error")
except TypeError:
pass
try:
None < s
raise error("Expected type error")
except TypeError:
pass
assert s != s.sub_val
import copy
s2 = copy.copy(s)
assert s is not s2
assert s == s2
s2.int_val = 123
assert s != s2
# Make sure everything works with functions
s2 = vbtest.GetStructFunc()
assert s==s2
vbtest.SetStructSub(s2)
# Create a new structure, and set its elements.
s = win32com.client.Record("VBStruct", vbtest)
assert s.int_val == 0, "new struct inst initialized correctly!"
s.int_val = -1
vbtest.SetStructSub(s)
assert vbtest.GetStructFunc().int_val == -1, "new struct didnt make the round trip!"
# Finally, test stand-alone structure arrays.
s_array = vbtest.StructArrayProperty
assert s_array is None, "Expected None from the uninitialized VB array"
vbtest.MakeStructArrayProperty(3)
s_array = vbtest.StructArrayProperty
assert len(s_array)==3
for i in range(len(s_array)):
assert s_array[i].int_val == i
assert s_array[i].sub_val.int_val == i
assert s_array[i].sub_val.array_val[0].int_val == i
assert s_array[i].sub_val.array_val[1].int_val == i+1
assert s_array[i].sub_val.array_val[2].int_val == i+2
# Some error type checks.
try:
s.bad_attribute
raise RuntimeError("Could get a bad attribute")
except AttributeError:
pass
m = s.__members__
assert m[0]=="int_val" and m[1]=="str_val" and m[2]=="ob_val" and m[3]=="sub_val", m
# Test attribute errors.
try:
s.foo
raise RuntimeError("Expected attribute error")
except AttributeError as exc:
assert "foo" in str(exc), exc
# test repr - it uses repr() of the sub-objects, so check it matches.
expected = "com_struct(int_val=%r, str_val=%r, ob_val=%r, sub_val=%r)" % (s.int_val, s.str_val, s.ob_val, s.sub_val)
if repr(s) != expected:
print("Expected repr:", expected)
print("Actual repr :", repr(s))
raise RuntimeError("repr() of record object failed")
print("Struct/Record tests passed")
def TestVBInterface(ob):
t = ob.GetInterfaceTester(2)
if t.getn() != 2:
raise error("Initial value wrong")
t.setn(3)
if t.getn() != 3:
raise error("New value wrong")
def TestObjectSemantics(ob):
# a convenient place to test some of our equality semantics
assert ob==ob._oleobj_
assert not ob!=ob._oleobj_
# same test again, but lhs and rhs reversed.
assert ob._oleobj_==ob
assert not ob._oleobj_!=ob
# same tests but against different pointers. COM identity rules should
# still ensure all works
assert ob._oleobj_==ob._oleobj_.QueryInterface(pythoncom.IID_IUnknown)
assert not ob._oleobj_!=ob._oleobj_.QueryInterface(pythoncom.IID_IUnknown)
assert ob._oleobj_!=None
assert None!=ob._oleobj_
assert ob!=None
assert None!=ob
if sys.version_info > (3,0):
try:
ob < None
raise error("Expected type error")
except TypeError:
pass
try:
None < ob
raise error("Expected type error")
except TypeError:
pass
assert ob._oleobj_.QueryInterface(pythoncom.IID_IUnknown)==ob._oleobj_
assert not ob._oleobj_.QueryInterface(pythoncom.IID_IUnknown)!=ob._oleobj_
assert ob._oleobj_==ob._oleobj_.QueryInterface(pythoncom.IID_IDispatch)
assert not ob._oleobj_!=ob._oleobj_.QueryInterface(pythoncom.IID_IDispatch)
assert ob._oleobj_.QueryInterface(pythoncom.IID_IDispatch)==ob._oleobj_
assert not ob._oleobj_.QueryInterface(pythoncom.IID_IDispatch)!=ob._oleobj_
print("Object semantic tests passed")
def DoTestAll():
o = win32com.client.Dispatch("PyCOMVBTest.Tester")
TestObjectSemantics(o)
TestVB(o,1)
o = win32com.client.dynamic.DumbDispatch("PyCOMVBTest.Tester")
TestObjectSemantics(o)
TestVB(o,0)
def TestAll():
# Import the type library for the test module. Let the 'invalid clsid'
# exception filter up, where the test runner will treat it as 'skipped'
win32com.client.gencache.EnsureDispatch("PyCOMVBTest.Tester")
if not __debug__:
raise RuntimeError("This must be run in debug mode - we use assert!")
try:
DoTestAll()
print("All tests appear to have worked!")
except:
# ?????
print("TestAll() failed!!")
traceback.print_exc()
raise
# Make this test run under our test suite to leak tests etc work
def suite():
import unittest
test = util.CapturingFunctionTestCase(TestAll, description="VB tests")
suite = unittest.TestSuite()
suite.addTest(test)
return suite
if __name__=='__main__':
util.testmain()