def test_sharedness_of_a_darray():
"""
Test if the double buffered array is actually shared between two processes.
"""
parity = SharedArray.SharedNumpyArray((1, ), np.uint32)
Array = SharedArray.DoubleBufferedSharedNumpyArray((10, 10), np.float,
parity)
p = multiprocessing.Process(target=worker_test_sharedness_of_a_darray,
args=(Array, parity))
p.start()
p.join()
assert (Array[5, 5] == 15)
parity[0] = 0
assert (Array[5, 5] == 10)
def test_pickling_darray(tmpdir):
"""
Pickles and unpickles a double buffered shared array
"""
parity = SharedArray.SharedNumpyArray((1, ), np.uint32)
A = SharedArray.DoubleBufferedSharedNumpyArray((10, 10), np.float, parity)
A[1, 1] = 15
parity[0] = 1
A[1, 1] = 12
save({"array": A, "parity": parity}, str(tmpdir) + "/test.p.gz")
ddict = load(str(tmpdir) + "/test.p.gz")
B = ddict["array"]
parity = ddict["parity"]
assert (B[1, 1] == 12)
parity[0] = 0
assert (B[1, 1] == 15)
