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import os.path
import sys
import threading
import time
IS_JYTHON = sys.platform.find('java') != -1
try:
this_file_name = __file__
except NameError:
# stupid jython. plain old __file__ isnt working for some reason
import test_runfiles #@UnresolvedImport - importing the module itself
this_file_name = test_runfiles.__file__
desired_runfiles_path = os.path.normpath(os.path.dirname(this_file_name) + "/..")
sys.path.insert(0, desired_runfiles_path)
import unittest
import pydevd_referrers
from pydev_imports import StringIO
#=======================================================================================================================
# Test
#=======================================================================================================================
class Test(unittest.TestCase):
def testGetReferrers1(self):
container = []
contained = [1, 2]
container.append(0)
container.append(contained)
# Ok, we have the contained in this frame and inside the given list (which on turn is in this frame too).
# we should skip temporary references inside the get_referrer_info.
result = pydevd_referrers.get_referrer_info(contained)
assert 'list[1]' in result
pydevd_referrers.print_referrers(contained, stream=StringIO())
def testGetReferrers2(self):
class MyClass(object):
def __init__(self):
pass
contained = [1, 2]
obj = MyClass()
obj.contained = contained
del contained
# Ok, we have the contained in this frame and inside the given list (which on turn is in this frame too).
# we should skip temporary references inside the get_referrer_info.
result = pydevd_referrers.get_referrer_info(obj.contained)
assert 'found_as="contained"' in result
assert 'MyClass' in result
def testGetReferrers3(self):
class MyClass(object):
def __init__(self):
pass
contained = [1, 2]
obj = MyClass()
obj.contained = contained
del contained
# Ok, we have the contained in this frame and inside the given list (which on turn is in this frame too).
# we should skip temporary references inside the get_referrer_info.
result = pydevd_referrers.get_referrer_info(obj.contained)
assert 'found_as="contained"' in result
assert 'MyClass' in result
def testGetReferrers4(self):
class MyClass(object):
def __init__(self):
pass
obj = MyClass()
obj.me = obj
# Let's see if we detect the cycle...
result = pydevd_referrers.get_referrer_info(obj)
assert 'found_as="me"' in result #Cyclic ref
def testGetReferrers5(self):
container = dict(a=[1])
# Let's see if we detect the cycle...
result = pydevd_referrers.get_referrer_info(container['a'])
assert 'testGetReferrers5' not in result #I.e.: NOT in the current method
assert 'found_as="a"' in result
assert 'dict' in result
assert str(id(container)) in result
def testGetReferrers6(self):
container = dict(a=[1])
def should_appear(obj):
# Let's see if we detect the cycle...
return pydevd_referrers.get_referrer_info(obj)
result = should_appear(container['a'])
assert 'should_appear' in result
def testGetReferrers7(self):
class MyThread(threading.Thread):
def run(self):
#Note: we do that because if we do
self.frame = sys._getframe()
t = MyThread()
t.start()
while not hasattr(t, 'frame'):
time.sleep(0.01)
result = pydevd_referrers.get_referrer_info(t.frame)
assert 'MyThread' in result
if __name__ == "__main__":
#this is so that we can run it frem the jython tests -- because we don't actually have an __main__ module
#(so, it won't try importing the __main__ module)
try:
import gc
gc.get_referrers(unittest)
except:
pass
else:
unittest.TextTestRunner().run(unittest.makeSuite(Test))
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