def testDestroySegment(self): """ Creates a segment, destroys it, and makes sure it got destroyed along with all of its synapses. """ connections = Connections(1024) connections.createSegment(10) segment2 = connections.createSegment(20) connections.createSegment(30) connections.createSegment(40) connections.createSynapse(segment2, 80, 0.85) connections.createSynapse(segment2, 81, 0.85) connections.createSynapse(segment2, 82, 0.15) self.assertEqual(4, connections.numSegments()) self.assertEqual(3, connections.numSynapses()) connections.destroySegment(segment2) self.assertEqual(3, connections.numSegments()) self.assertEqual(0, connections.numSynapses()) args = [segment2] self.assertRaises(ValueError, connections.synapsesForSegment, *args) active, matching = connections.computeActivity([80, 81, 82], .5, 2, .1, 1) self.assertEqual(len(active), 0) self.assertEqual(len(matching), 0)
def testDestroySegment(self): """ Creates a segment, destroys it, and makes sure it got destroyed along with all of its synapses. """ connections = Connections(1024) connections.createSegment(10) segment2 = connections.createSegment(20) connections.createSegment(30) connections.createSegment(40) connections.createSynapse(segment2, 80, 0.85) connections.createSynapse(segment2, 81, 0.85) connections.createSynapse(segment2, 82, 0.15) self.assertEqual(4, connections.numSegments()) self.assertEqual(3, connections.numSynapses()) connections.destroySegment(segment2) self.assertEqual(3, connections.numSegments()) self.assertEqual(0, connections.numSynapses()) (numActiveConnected, numActivePotential) = connections.computeActivity([80, 81, 82], 0.5) self.assertEqual(0, numActiveConnected[segment2.flatIdx]) self.assertEqual(0, numActivePotential[segment2.flatIdx])
def testDestroySegmentsThenReachLimit(self): """ Destroy some segments then verify that the maxSegmentsPerCell is still correctly applied. """ connections = Connections(1024, 2, 2) segment1 = connections.createSegment(11) segment2 = connections.createSegment(11) self.assertEqual(2, connections.numSegments()) connections.destroySegment(segment1) connections.destroySegment(segment2) self.assertEqual(0, connections.numSegments()) connections.createSegment(11) self.assertEqual(1, connections.numSegments()) connections.createSegment(11) self.assertEqual(2, connections.numSegments()) segment3 = connections.createSegment(11) self.assertLess(segment3.idx, 2) self.assertEqual(2, connections.numSegments())
def testDestroySegmentWithDestroyedSynapses(self): """ Destroy a segment that has a destroyed synapse and a non-destroyed synapse. Make sure nothing gets double-destroyed. """ connections = Connections(1024) segment1 = connections.createSegment(11) segment2 = connections.createSegment(12) connections.createSynapse(segment1, 101, .85) synapse2a = connections.createSynapse(segment2, 201, .85) connections.createSynapse(segment2, 202, .85) self.assertEqual(3, connections.numSynapses()) connections.destroySynapse(synapse2a) self.assertEqual(2, connections.numSegments()) self.assertEqual(2, connections.numSynapses()) connections.destroySegment(segment2) self.assertEqual(1, connections.numSegments()) self.assertEqual(1, connections.numSynapses())