def testRefCountCreate(self):
"""Tests if reference count is set correctly on creation"""
# Not sure why, but the following statements need to be run once before
# mem() is invoked to get a stable initial memory footprint. If these
# statements are not run, the initial memory footprint is ***always***
# different from the one after the loop. I can only guess that these
# statements have side-effects in Python that claim memory when they
# are run for the first time...
md5()
mem()
# The number of md5 objects to create. Should be high enough so that
# the cumulative memory leak (if it exists) is greater than a memory
# page size (see limitations of mem()).
objectCount = 10000
# Get memory after all objects that remain in use have been created.
# After this statement only objects must be created that are expected
# to be destroyed before the next invocation of mem().
memory = mem()
while objectCount > 0:
objectCount -= 1
# Store no references. If the C implementation handles reference
# counts correctly, it can be expected that the object will be
# destroyed immediately.
md5()
self.assertEqual(memory, mem())
def testRefCountCreate(self):
"""Tests if reference count is set correctly on creation"""
# Not sure why, but the following statements need to be run once before
# mem() is invoked to get a stable initial memory footprint. If these
# statements are not run, the initial memory footprint is ***always***
# different from the one after the loop. I can only guess that these
# statements have side-effects in Python that claim memory when they
# are run for the first time...
md5()
mem()
# The number of md5 objects to create. Should be high enough so that
# the cumulative memory leak (if it exists) is greater than a memory
# page size (see limitations of mem()).
objectCount = 10000
# Get memory after all objects that remain in use have been created.
# After this statement only objects must be created that are expected
# to be destroyed before the next invocation of mem().
memory = mem()
while objectCount > 0:
objectCount -= 1
# Store no references. If the C implementation handles reference
# counts correctly, it can be expected that the object will be
# destroyed immediately.
md5()
self.assertEqual(memory, mem())
def testRefCountCopy(self):
"""Tests if reference count is set correctly on md5.copy()"""
# See comment in the first test method above why these statements are
# necessary
md5()
mem()
# The actual test starts here
objectCount = 10000
memory = mem()
while objectCount > 0:
objectCount -= 1
md5().copy()
self.assertEqual(memory, mem())
def testRefCountCopy(self):
"""Tests if reference count is set correctly on md5.copy()"""
# See comment in the first test method above why these statements are
# necessary
md5()
mem()
# The actual test starts here
objectCount = 10000
memory = mem()
while objectCount > 0:
objectCount -= 1
md5().copy()
self.assertEqual(memory, mem())
def testRefCountHash(self):
"""Tests if no memory leaks occur when performing a hash operation"""
# See comment in the first test method above why these statements are
# necessary
m = md5(self.inputNormal)
mem()
# The actual test starts here
objectCount = 10000
memory = mem()
while objectCount > 0:
objectCount -= 1
m = md5(self.inputNormal)
self.assertEqual(m.hexdigest(), self.expectedHexdigestInputNormal)
self.assertEqual(memory, mem())
def testRefCountHash(self):
"""Tests if no memory leaks occur when performing a hash operation"""
# See comment in the first test method above why these statements are
# necessary
m = md5(self.inputNormal)
mem()
# The actual test starts here
objectCount = 10000
memory = mem()
while objectCount > 0:
objectCount -= 1
m = md5(self.inputNormal)
self.assertEqual(m.hexdigest(), self.expectedHexdigestInputNormal)
self.assertEqual(memory, mem())
def testCopyAndDelete(self):
m1 = md5(self.inputNormal)
m2 = m1.copy()
del m1
m2.update(self.inputNormal)
hexdigest = m2.hexdigest()
self.assertEqual(hexdigest, self.expectedHexdigestInputTwice)
def testCopyTwice(self):
m1 = md5(self.inputNormal)
m2 = m1.copy()
m3 = m1.copy()
self.assertNotEqual(m1, m2)
self.assertNotEqual(m1, m3)
self.assertNotEqual(m2, m3)
def testHexdigestTwice(self):
m = md5()
m.update(self.inputNormal)
hexdigest1 = m.hexdigest()
hexdigest2 = m.hexdigest()
self.assertEqual(hexdigest1, self.expectedHexdigestInputNormal)
self.assertEqual(hexdigest2, self.expectedHexdigestInputNormal)
def testHexdigest(self):
# This test is somewhat pointless, the hexdigest() method has already
# been thoroughly tested by other functions. We still perform this
# test so that hexdigest() has at least one explicit test.
m = md5()
m.update(self.inputNormal)
hexdigest = m.hexdigest()
self.assertEqual(hexdigest, self.expectedHexdigestInputNormal)
def testCopy(self):
m1 = md5(self.inputNormal)
m2 = m1.copy()
self.assertNotEqual(m1, m2)
hexdigest1 = m1.hexdigest()
hexdigest2 = m2.hexdigest()
self.assertEqual(hexdigest1, self.expectedHexdigestInputNormal)
self.assertEqual(hexdigest2, self.expectedHexdigestInputNormal)
m1.update(self.inputNormal)
hexdigest1 = m1.hexdigest()
hexdigest2 = m2.hexdigest()
self.assertEqual(hexdigest1, self.expectedHexdigestInputTwice)
self.assertEqual(hexdigest2, self.expectedHexdigestInputNormal)
def testUpdateInputIsNone(self):
m = md5()
input = None
self.assertRaises(TypeError, m.update, input)
def testUpdateInputIsEmpty(self):
m = md5()
m.update(self.inputEmpty)
hexdigest = m.hexdigest()
self.assertEqual(hexdigest, self.expectedHexdigestInputEmpty)
def testUpdate(self):
m = md5()
m.update(self.inputNormal)
hexdigest = m.hexdigest()
self.assertEqual(hexdigest, self.expectedHexdigestInputNormal)
def testDelete(self):
# There's not much that we can test besides the bare fact that an md5
# object can be deleted without any error
m = md5()
del m
def testCreateTwice(self):
m1 = md5()
m2 = md5()
self.assertNotEqual(m1, m2)
def testCreateInitInputIsEmpty(self):
m = md5(self.inputEmpty)
hexdigest = m.hexdigest()
self.assertEqual(hexdigest, self.expectedHexdigestInputEmpty)
def testCreateKeywordInitInput(self):
m = md5(input = self.inputNormal)
hexdigest = m.hexdigest()
self.assertEqual(hexdigest, self.expectedHexdigestInputNormal)
def testCreate(self):
m = md5()
hexdigest = m.hexdigest()
self.assertEqual(hexdigest, self.expectedHexdigestInputEmpty)
def testName(self):
m = md5()
self.assertEqual(m.name, "md5")
def testBlockSize(self):
m = md5()
self.assertEqual(m.block_size, 64)
def testDigestSize(self):
m = md5()
self.assertEqual(m.digest_size, 16)
def testDigest(self):
m = md5()
m.update(self.inputNormal)
digest = m.digest()
self.assertEqual(digest, self.expectedDigestInputNormal)
