def test_caching_of_circular_structures(self):
"""test_caching_of_circular_structures
Test that Caching doesn't recurse infinitely in case of
circular or self-referencing structures
"""
verbose = False
# Create input argument
A = Dummy(5, 7)
B = {'x': 10, 'A': A}
C = [B, 15]
A.value = C # Make it circular
A.x = [1, 2, C, 5, A] # More circular and self referential
AA = deepcopy(A)
# Test caching
comprange = 2
for comp in range(comprange):
# Evaluate and store
T1 = cache(f_generic,
A,
evaluate=1,
compression=comp,
verbose=verbose)
# Retrieve
T2 = cache(f_generic,
AA,
compression=comp,
test=1,
verbose=verbose)
#test=1, verbose=True)
# FIXME (Ole): The works in Python 3 but not in Python 2.
# I am in a mind to live with that as we are moving
# away from Python 2 anyway
import sys
if sys.version_info[0] > 2:
# Check for presence of cached result
msg = 'Cached object was not found'
assert T2 is not None, msg
# Reference result
T3 = f_generic(A) # Compute without caching
#msg = 'Cached result does not match computed result'
#assert str(T1) == str(T2), msg
#assert str(T2) == str(T3), msg
assert str(T1) == str(T3), msg
def test_caching_of_circular_structures(self):
"""test_caching_of_circular_structures
Test that Caching doesn't recurse infinitely in case of
circular or self-referencing structures
"""
verbose = False
# Create input argument
A = Dummy(5, 7)
B = {'x': 10, 'A': A}
C = [B, 15]
A.value = C # Make it circular
A.x = [1, 2, C, 5, A] # More circular and self referential
AA = deepcopy(A)
# Test caching
comprange = 2
for comp in range(comprange):
# Evaluate and store
T1 = cache(f_generic, A,
evaluate=1,
compression=comp, verbose=verbose)
# Retrieve
T2 = cache(f_generic, AA,
compression=comp,
test=1, verbose=verbose)
# Check for presence of cached result
msg = 'Cached object was not found'
assert T2 is not None, msg
# Reference result
T3 = f_generic(A) # Compute without caching
msg = 'Cached result does not match computed result'
assert str(T1) == str(T2), msg
assert str(T2) == str(T3), msg
