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pythonnet/src/tests/leaktest.py at python3 · patstew/pythonnet · GitHub
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leaktest.py
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leaktest.py
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# ===========================================================================
# This software is subject to the provisions of the Zope Public License,
# Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
# ===========================================================================
import
System
import
gc
class
LeakTest
:
"""A leak-check test for the objects implemented in the managed
runtime. For each kind of object tested, memory should reach
a particular level after warming up and stay essentially the
same, net of minor fluctuation induced by GC."""
def
__init__
(
self
):
self
.
count
=
50000
self
.
quiet
=
0
self
.
_ws
=
0
def
notify
(
self
,
msg
):
if
not
self
.
quiet
:
print
msg
def
start_test
(
self
):
System
.
GC
.
Collect
(
System
.
GC
.
MaxGeneration
)
gc
.
collect
()
self
.
_ws
=
System
.
Environment
.
WorkingSet
def
end_test
(
self
):
start
=
self
.
_ws
System
.
GC
.
Collect
(
System
.
GC
.
MaxGeneration
)
gc
.
collect
()
end
=
System
.
Environment
.
WorkingSet
diff
=
end
-
start
if
diff
>
0
:
diff
=
'+%d'
%
diff
else
:
diff
=
'%d'
%
diff
print
" start: %d end: %d diff: %s"
%
(
start
,
end
,
diff
)
print
""
def
run
(
self
):
self
.
testModules
()
self
.
testClasses
()
self
.
testEnumerations
()
self
.
testEvents
()
self
.
testDelegates
()
def
report
(
self
):
import
sys
,
gc
gc
.
collect
()
dicttype
=
type
({})
for
item
in
gc
.
get_objects
():
if
type
(
item
)
!=
dicttype
:
print
item
,
sys
.
getrefcount
(
item
)
def
testModules
(
self
):
self
.
notify
(
"Running module leak check..."
)
for
i
in
xrange
(
self
.
count
):
if
i
==
10
:
self
.
start_test
()
__import__
(
'clr'
)
__import__
(
'System'
)
__import__
(
'System.IO'
)
__import__
(
'System.Net'
)
__import__
(
'System.Xml'
)
self
.
end_test
()
def
testClasses
(
self
):
from
System
.
Collections
import
Hashtable
from
Python
.
Test
import
StringDelegate
from
System
import
Int32
self
.
notify
(
"Running class leak check..."
)
for
i
in
xrange
(
self
.
count
):
if
i
==
10
:
self
.
start_test
()
# Reference type
x
=
Hashtable
()
del
x
# Value type
x
=
Int32
(
99
)
del
x
# Delegate type
x
=
StringDelegate
(
hello
)
del
x
self
.
end_test
()
def
testEnumerations
(
self
):
from
Python
import
Test
self
.
notify
(
"Running enum leak check..."
)
for
i
in
xrange
(
self
.
count
):
if
i
==
10
:
self
.
start_test
()
x
=
Test
.
ByteEnum
.
Zero
del
x
x
=
Test
.
SByteEnum
.
Zero
del
x
x
=
Test
.
ShortEnum
.
Zero
del
x
x
=
Test
.
UShortEnum
.
Zero
del
x
x
=
Test
.
IntEnum
.
Zero
del
x
x
=
Test
.
UIntEnum
.
Zero
del
x
x
=
Test
.
LongEnum
.
Zero
del
x
x
=
Test
.
ULongEnum
.
Zero
del
x
self
.
end_test
()
def
testEvents
(
self
):
from
Python
.
Test
import
EventTest
,
TestEventArgs
self
.
notify
(
"Running event leak check..."
)
for
i
in
xrange
(
self
.
count
):
if
i
==
10
:
self
.
start_test
()
testob
=
EventTest
()
# Instance method event handler
handler
=
GenericHandler
()
testob
.
PublicEvent
+=
handler
.
handler
testob
.
PublicEvent
(
testob
,
TestEventArgs
(
10
))
testob
.
PublicEvent
-=
handler
.
handler
del
handler
# Vararg method event handler
handler
=
VariableArgsHandler
()
testob
.
PublicEvent
+=
handler
.
handler
testob
.
PublicEvent
(
testob
,
TestEventArgs
(
10
))
testob
.
PublicEvent
-=
handler
.
handler
del
handler
# Callable object event handler
handler
=
CallableHandler
()
testob
.
PublicEvent
+=
handler
testob
.
PublicEvent
(
testob
,
TestEventArgs
(
10
))
testob
.
PublicEvent
-=
handler
del
handler
# Callable vararg event handler
handler
=
VarCallableHandler
()
testob
.
PublicEvent
+=
handler
testob
.
PublicEvent
(
testob
,
TestEventArgs
(
10
))
testob
.
PublicEvent
-=
handler
del
handler
# Static method event handler
handler
=
StaticMethodHandler
()
StaticMethodHandler
.
value
=
None
testob
.
PublicEvent
+=
handler
.
handler
testob
.
PublicEvent
(
testob
,
TestEventArgs
(
10
))
testob
.
PublicEvent
-=
handler
.
handler
del
handler
# Class method event handler
handler
=
ClassMethodHandler
()
ClassMethodHandler
.
value
=
None
testob
.
PublicEvent
+=
handler
.
handler
testob
.
PublicEvent
(
testob
,
TestEventArgs
(
10
))
testob
.
PublicEvent
-=
handler
.
handler
del
handler
# Managed instance event handler
testob
.
PublicEvent
+=
testob
.
GenericHandler
testob
.
PublicEvent
(
testob
,
TestEventArgs
(
10
))
testob
.
PublicEvent
-=
testob
.
GenericHandler
# Static managed event handler
testob
.
PublicEvent
+=
EventTest
.
StaticHandler
testob
.
PublicEvent
(
testob
,
TestEventArgs
(
10
))
testob
.
PublicEvent
-=
EventTest
.
StaticHandler
# Function event handler
dict
=
{
'value'
:
None
}
def
handler
(
sender
,
args
,
dict
=
dict
):
dict
[
'value'
]
=
args
.
value
testob
.
PublicEvent
+=
handler
testob
.
PublicEvent
(
testob
,
TestEventArgs
(
10
))
testob
.
PublicEvent
-=
handler
del
handler
self
.
end_test
()
def
testDelegates
(
self
):
from
Python
.
Test
import
DelegateTest
,
StringDelegate
import
System
self
.
notify
(
"Running delegate leak check..."
)
for
i
in
xrange
(
self
.
count
):
if
i
==
10
:
self
.
start_test
()
# Delegate from function
testob
=
DelegateTest
()
d
=
StringDelegate
(
hello
)
testob
.
CallStringDelegate
(
d
)
testob
.
stringDelegate
=
d
testob
.
stringDelegate
()
testob
.
stringDelegate
=
None
del
testob
del
d
# Delegate from instance method
inst
=
Hello
()
testob
=
DelegateTest
()
d
=
StringDelegate
(
inst
.
hello
)
testob
.
CallStringDelegate
(
d
)
testob
.
stringDelegate
=
d
testob
.
stringDelegate
()
testob
.
stringDelegate
=
None
del
testob
del
inst
del
d
# Delegate from static method
testob
=
DelegateTest
()
d
=
StringDelegate
(
Hello
.
s_hello
)
testob
.
CallStringDelegate
(
d
)
testob
.
stringDelegate
=
d
testob
.
stringDelegate
()
testob
.
stringDelegate
=
None
del
testob
del
d
# Delegate from class method
testob
=
DelegateTest
()
d
=
StringDelegate
(
Hello
.
c_hello
)
testob
.
CallStringDelegate
(
d
)
testob
.
stringDelegate
=
d
testob
.
stringDelegate
()
testob
.
stringDelegate
=
None
del
testob
del
d
# Delegate from callable object
inst
=
Hello
()
testob
=
DelegateTest
()
d
=
StringDelegate
(
inst
)
testob
.
CallStringDelegate
(
d
)
testob
.
stringDelegate
=
d
testob
.
stringDelegate
()
testob
.
stringDelegate
=
None
del
testob
del
inst
del
d
# Delegate from managed instance method
testob
=
DelegateTest
()
d
=
StringDelegate
(
testob
.
SayHello
)
testob
.
CallStringDelegate
(
d
)
testob
.
stringDelegate
=
d
testob
.
stringDelegate
()
testob
.
stringDelegate
=
None
del
testob
del
d
# Delegate from managed static method
testob
=
DelegateTest
()
d
=
StringDelegate
(
DelegateTest
.
StaticSayHello
)
testob
.
CallStringDelegate
(
d
)
testob
.
stringDelegate
=
d
testob
.
stringDelegate
()
testob
.
stringDelegate
=
None
del
testob
del
d
# Nested delegates
testob
=
DelegateTest
()
d1
=
StringDelegate
(
hello
)
d2
=
StringDelegate
(
d1
)
testob
.
CallStringDelegate
(
d2
)
testob
.
stringDelegate
=
d2
testob
.
stringDelegate
()
testob
.
stringDelegate
=
None
del
testob
del
d1
del
d2
# Multicast delegates
testob
=
DelegateTest
()
d1
=
StringDelegate
(
hello
)
d2
=
StringDelegate
(
hello
)
md
=
System
.
Delegate
.
Combine
(
d1
,
d2
)
testob
.
CallStringDelegate
(
md
)
testob
.
stringDelegate
=
md
testob
.
stringDelegate
()
testob
.
stringDelegate
=
None
del
testob
del
d1
del
d2
del
md
self
.
end_test
()
class
GenericHandler
:
"""A generic handler to test event callbacks."""
def
__init__
(
self
):
self
.
value
=
None
def
handler
(
self
,
sender
,
args
):
self
.
value
=
args
.
value
class
VariableArgsHandler
:
"""A variable args handler to test event callbacks."""
def
__init__
(
self
):
self
.
value
=
None
def
handler
(
self
,
*
args
):
ob
,
eventargs
=
args
self
.
value
=
eventargs
.
value
class
CallableHandler
:
"""A callable handler to test event callbacks."""
def
__init__
(
self
):
self
.
value
=
None
def
__call__
(
self
,
sender
,
args
):
self
.
value
=
args
.
value
class
VarCallableHandler
:
"""A variable args callable handler to test event callbacks."""
def
__init__
(
self
):
self
.
value
=
None
def
__call__
(
self
,
*
args
):
ob
,
eventargs
=
args
self
.
value
=
eventargs
.
value
class
StaticMethodHandler
(
object
):
"""A static method handler to test event callbacks."""
value
=
None
def
handler
(
sender
,
args
):
StaticMethodHandler
.
value
=
args
.
value
handler
=
staticmethod
(
handler
)
class
ClassMethodHandler
(
object
):
"""A class method handler to test event callbacks."""
value
=
None
def
handler
(
cls
,
sender
,
args
):
cls
.
value
=
args
.
value
handler
=
classmethod
(
handler
)
class
Hello
:
def
hello
(
self
):
return
"hello"
def
__call__
(
self
):
return
"hello"
def
s_hello
():
return
"hello"
s_hello
=
staticmethod
(
s_hello
)
def
c_hello
(
cls
):
return
"hello"
c_hello
=
classmethod
(
c_hello
)
def
hello
():
return
"hello"
if
__name__
==
'__main__'
:
test
=
LeakTest
()
test
.
run
()
test
.
report
()
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