def testErrorChecks(self):
params1 = RDSE_Parameters()
params1.size = 100
params1.sparsity = .10
params1.radius = 10
R1 = RDSE( params1 )
A = SDR([10, 10])
R1.encode( 33, A )
# Test wrong input dimensions
B = SDR( 1 )
with self.assertRaises(RuntimeError):
R1.encode( 3, B )
# Test invalid parameters, size == 0
params1.size = 0
with self.assertRaises(RuntimeError):
RDSE( params1 )
params1.size = 100
# Test invalid parameters, activeBits == 0
params1.activeBits = 0
params1.sparsity = 0.00001 # Rounds to zero!
with self.assertRaises(RuntimeError):
RDSE( params1 )
# Test missing activeBits
params2 = RDSE_Parameters()
params2.size = 100
params2.radius = 10
with self.assertRaises(RuntimeError):
RDSE( params2 )
# Test missing resolution/radius
params3 = RDSE_Parameters()
params3.size = 100
params3.activeBits = 10
with self.assertRaises(RuntimeError):
RDSE( params3 )
# Test too many parameters: activeBits & sparsity
params4 = RDSE_Parameters()
params4.size = 100
params4.sparsity = .6
params4.activeBits = 10
params4.radius = 4
with self.assertRaises(RuntimeError):
RDSE( params4 )
# Test too many parameters: resolution & radius
params5 = RDSE_Parameters()
params5.size = 100
params5.activeBits = 10
params5.radius = 4
params5.resolution = 4
with self.assertRaises(RuntimeError):
RDSE( params5 )
def testRadiusResolution(self):
""" Check that these arguments are equivalent. """
# radius -> resolution
P = RDSE_Parameters()
P.size = 2000
P.activeBits = 100
P.radius = 12
R = RDSE( P )
self.assertAlmostEqual( R.parameters.resolution, 12./100, places=5)
# resolution -> radius
P = RDSE_Parameters()
P.size = 2000
P.activeBits = 100
P.resolution = 12
R = RDSE( P )
self.assertAlmostEqual( R.parameters.radius, 12*100, places=5)
# Moving 1 resolution moves 1 bit (usually)
P = RDSE_Parameters()
P.size = 2000
P.activeBits = 100
P.resolution = 3.33
P.seed = 42
R = RDSE( P )
sdrs = []
for i in range(100):
X = i * ( R.parameters.resolution )
sdrs.append( R.encode( X ) )
print("X", X, sdrs[-1])
moved_one = 0
moved_one_samples = 0
for A, B in zip(sdrs, sdrs[1:]):
delta = A.getSum() - A.getOverlap( B )
if A.getSum() == B.getSum():
assert( delta < 2 )
moved_one += delta
moved_one_samples += 1
assert( moved_one >= .9 * moved_one_samples )
def testPickle(self):
"""
The pickling is successfull if pickle serializes and de-serialize the
RDSE object.
Moreover, the de-serialized object shall give the same SDR than the
original encoder given the same scalar value to encode.
"""
rdse_params = RDSE_Parameters()
rdse_params.sparsity = 0.1
rdse_params.size = 100
rdse_params.resolution = 0.1
rdse_params.seed = 1997
rdse = RDSE(rdse_params)
filename = "RDSE_testPickle"
try:
with open(filename, "wb") as f:
pickle.dump(rdse, f)
except:
dump_success = False
else:
dump_success = True
assert(dump_success)
try:
with open(filename, "rb") as f:
rdse_loaded = pickle.load(f)
except:
read_success = False
else:
read_success = True
assert(read_success)
value_to_encode = 69003
SDR_original = rdse.encode(value_to_encode)
SDR_loaded = rdse_loaded.encode(value_to_encode)
assert(SDR_original == SDR_loaded)
def testJSONSerialization(self):
"""
This test is to insure that Python can access the C++ serialization functions.
Serialization is tested more completely in C++ unit tests. Just checking
that Python can access it.
"""
rdse_params = RDSE_Parameters()
rdse_params.sparsity = 0.1
rdse_params.size = 1000
rdse_params.resolution = 0.1
rdse_params.seed = 1997
rdse = RDSE(rdse_params)
filename = 'RDSE_testPickle'
rdse.saveToFile(filename, 'JSON')
rdse_loaded = RDSE()
rdse_loaded.loadFromFile(filename, 'JSON')
value_to_encode = 69003
SDR_original = rdse.encode(value_to_encode)
SDR_loaded = rdse_loaded.encode(value_to_encode)
assert (SDR_original == SDR_loaded)