def testCreateSegment(self):
connections = Connections(1024)
segment1 = connections.createSegment(10)
self.assertEqual(segment1.cell, 10)
segment2 = connections.createSegment(10)
self.assertEqual(segment2.cell, 10)
self.assertEqual([segment1, segment2],
list(connections.segmentsForCell(10)))
def testCreateSegment(self):
connections = Connections(1024)
segment1 = connections.createSegment(10)
self.assertEqual(segment1.cell, 10)
segment2 = connections.createSegment(10)
self.assertEqual(segment2.cell, 10)
self.assertEqual([segment1, segment2],
list(connections.segmentsForCell(10)))
def testCreateSegmentReuse(self):
connections = Connections(1024, 2)
segment1 = connections.createSegment(42)
connections.createSynapse(segment1, 1, .5)
connections.createSynapse(segment1, 2, .5)
# Let some time pass.
connections.startNewIteration()
connections.startNewIteration()
connections.startNewIteration()
# Create a segment with 3 synapse.
segment2 = connections.createSegment(42)
connections.createSynapse(segment2, 1, .5)
connections.createSynapse(segment2, 2, .5)
connections.createSynapse(segment2, 3, .5)
connections.startNewIteration()
# Give the first segment some activity.
connections.recordSegmentActivity(segment1)
# Create a new segment with 1 synapse.
segment3 = connections.createSegment(42)
connections.createSynapse(segment3, 1, .5)
segments = connections.segmentsForCell(42)
self.assertEqual(2, len(segments))
# Verify first segment is still there with the same synapses.
self.assertEqual(
set([1, 2]),
set(synapse.presynapticCell
for synapse in connections.synapsesForSegment(segments[0])))
# Verify second segment has been replaced.
self.assertEqual(
set([1]),
set(synapse.presynapticCell
for synapse in connections.synapsesForSegment(segments[1])))
# Verify the flatIdxs were properly reused.
self.assertLess(segment1.flatIdx, 2)
self.assertLess(segment3.flatIdx, 2)
self.assertTrue(
segment1 is connections.segmentForFlatIdx(segment1.flatIdx))
self.assertTrue(
segment3 is connections.segmentForFlatIdx(segment3.flatIdx))
def testCreateSegmentReuse(self):
connections = Connections(1024, 2)
segment1 = connections.createSegment(42)
connections.createSynapse(segment1, 1, .5)
connections.createSynapse(segment1, 2, .5)
# Let some time pass.
connections.startNewIteration()
connections.startNewIteration()
connections.startNewIteration()
# Create a segment with 3 synapse.
segment2 = connections.createSegment(42)
connections.createSynapse(segment2, 1, .5)
connections.createSynapse(segment2, 2, .5)
connections.createSynapse(segment2, 3, .5)
connections.startNewIteration()
# Give the first segment some activity.
connections.recordSegmentActivity(segment1)
# Create a new segment with 1 synapse.
segment3 = connections.createSegment(42)
connections.createSynapse(segment3, 1, .5)
segments = connections.segmentsForCell(42)
self.assertEqual(2, len(segments))
# Verify first segment is still there with the same synapses.
self.assertEqual(set([1, 2]),
set(synapse.presynapticCell for synapse in
connections.synapsesForSegment(segments[0])))
# Verify second segment has been replaced.
self.assertEqual(set([1]),
set(synapse.presynapticCell for synapse in
connections.synapsesForSegment(segments[1])))
# Verify the flatIdxs were properly reused.
self.assertLess(segment1.flatIdx, 2)
self.assertLess(segment3.flatIdx, 2)
self.assertTrue(segment1 is connections.segmentForFlatIdx(segment1.flatIdx))
self.assertTrue(segment3 is connections.segmentForFlatIdx(segment3.flatIdx))
