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# *****************************************************************************
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# See NOTICE file for details.
#
# *****************************************************************************import _jpype
import jpype
from jpype.types import *
import sys
import logging
import time
import common
class Tracer(object):
ctor = 0
dtor = 0
def __init__(self):
Tracer.ctor += 1
def __del__(self):
Tracer.dtor += 1
@staticmethod
def reset():
Tracer.ctor = 0
Tracer.dtor = 0
@staticmethod
def leaked():
return Tracer.ctor - Tracer.dtor
@staticmethod
def attach(obj):
setattr(obj, "_trace", Tracer())
# This test finds reference counting leak by attaching an
# object that lives as long as the wrapper is alive.
# It can't detect Java reference counter leaks.
class Leak2TestCase(common.JPypeTestCase):
def setUp(self):
common.JPypeTestCase.setUp(self)
self.fixture = JClass('jpype.common.Fixture')()
Tracer.reset()
def testArrayCall(self):
JA = JArray(JInt)
def call():
inst = JA(100)
Tracer.attach(inst)
self.fixture.callObject(inst)
for i in range(100):
call()
self.assertEqual(Tracer.leaked(), 0)
def testArrayMemoryView(self):
JA = JArray(JInt)
def call():
inst = JA(100)
Tracer.attach(inst)
memoryview(inst)
for i in range(100):
call()
self.assertEqual(Tracer.leaked(), 0)
def testBufferCall(self):
byte_buffer = jpype.JClass('java.nio.ByteBuffer')
def call():
inst = byte_buffer.allocateDirect(10)
Tracer.attach(inst)
self.fixture.callObject(inst)
for i in range(100):
call()
self.assertEqual(Tracer.leaked(), 0)
def testBufferMemoryView(self):
byte_buffer = jpype.JClass('java.nio.ByteBuffer')
def call():
inst = byte_buffer.allocateDirect(10)
Tracer.attach(inst)
memoryview(inst)
for i in range(100):
call()
self.assertEqual(Tracer.leaked(), 0)
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