def testAddToDataSetWithDifferentLayouts(self):
p1 = Point()
p1.setLayout(self.l1) # +1, ref = 2
p2 = Point()
ds = DataSet()
ds.addPoint(p1) # +2 (dataset+pointcopy), ref = 4
self.assertRaises(Exception, ds.addPoint, p2)
self.assertEqual(p1.layout().ref(), 4)
self.assertEqual(p2.layout().ref(), 1)
def testForceIdentity(self):
l = PointLayout()
l.add('a', RealType, FixedLength, 1)
p = Point()
p.setLayout(l)
cd = MetricFactory.create('cosinesimilarity', p.layout(), { 'defaultValue': 0.5 })
self.assertEquals(cd(p, p), 0.5)
ficd = MetricFactory.create('forceidentity',
p.layout(),
{ 'distance': 'cosinesimilarity',
'params': { 'defaultValue': 0.5 }
})
self.assertEquals(ficd(p, p), 0.0)
p2 = Point(p)
p2.setName('p2')
self.assertEquals(ficd(p, p2), 0.5)
def testComplexReferenceCounting(self):
ds = DataSet()
self.assertEqual(ds.layout().ref(), 2) # 1 + 1 from temp object
p = Point()
p.setName('p1')
lext = PointLayout(p.layout()) # +1, {lext,p}.ref = 2
self.assertEqual(lext.ref(), 2)
lext = p.layout().copy() # copy, lext.ref = 1; p.ref -= 1, = 1
self.assertEqual(lext.ref(), 1)
ds.addPoint(p) # +3 (dataset + pointcopy), ref = 3
self.assertEqual(lext.ref(), 1)
self.assertEqual(ds.layout().ref(), 4) # 3 + 1 temp object
p2 = Point(p) # +1, {p,p2}.ref = 5
p2.setName('p2')
self.assertEqual(ds.layout().ref(), 5)
ds.addPoint(p2)
self.assertEqual(ds.layout().ref(), 6) # +1 pointcopy, ref = 6
