def test_hash_from_sparse():
hashs = []
rng = numpy.random.rand(5, 5)
for format in ['csc', 'csr']:
rng = as_sparse_format(rng, format)
for data in [[[-2]], [[-1]], [[0]], [[1]], [[2]],
numpy.zeros((1, 5)), numpy.zeros((1, 6)),
# Data buffer empty but different shapes
# numpy.zeros((1, 0)), numpy.zeros((2, 0)),
# Same data buffer and shapes but different strides
numpy.arange(25).reshape(5, 5),
numpy.arange(25).reshape(5, 5).T,
# Same data buffer, shapes and strides
# but different dtypes
numpy.zeros((5, 5), dtype="uint32"),
numpy.zeros((5, 5), dtype="int32"),
# Test slice
rng, rng[1:], rng[:4], rng[1:3],
# Don't test step as they are not supported by sparse
#rng[::2], rng[::-1]
]:
data = as_sparse_format(data, format)
hashs.append(hash_from_sparse(data))
# test that different type of views and their copy give the same hash
assert hash_from_sparse(rng[1:]) == hash_from_sparse(rng[1:].copy())
assert hash_from_sparse(rng[1:3]) == hash_from_sparse(rng[1:3].copy())
assert hash_from_sparse(rng[:4]) == hash_from_sparse(rng[:4].copy())
assert len(set(hashs)) == len(hashs)
def test_hash_from_sparse():
hashs = []
rng = numpy.random.rand(5, 5)
for format in ['csc', 'csr']:
rng = as_sparse_format(rng, format)
for data in [[[-2]], [[-1]], [[0]], [[1]], [[2]],
numpy.zeros((1, 5)), numpy.zeros((1, 6)),
# Data buffer empty but different shapes
# numpy.zeros((1, 0)), numpy.zeros((2, 0)),
# Same data buffer and shapes but different strides
numpy.arange(25).reshape(5, 5),
numpy.arange(25).reshape(5, 5).T,
# Same data buffer, shapes and strides
# but different dtypes
numpy.zeros((5, 5), dtype="uint32"),
numpy.zeros((5, 5), dtype="int32"),
# Test slice
rng, rng[1:], rng[:4], rng[1:3],
# Don't test step as they are not supported by sparse
#rng[::2], rng[::-1]
]:
data = as_sparse_format(data, format)
hashs.append(hash_from_sparse(data))
# test that different type of views and their copy give the same hash
assert hash_from_sparse(rng[1:]) == hash_from_sparse(rng[1:].copy())
assert hash_from_sparse(rng[1:3]) == hash_from_sparse(rng[1:3].copy())
assert hash_from_sparse(rng[:4]) == hash_from_sparse(rng[:4].copy())
assert len(set(hashs)) == len(hashs)
