def testDangling_13_CorrectCountsThroughSiblingReferences(self):
p = TreeDict()
p.a = p.d
self.assert_(p._numDangling() == 2)
# Overwrite p.d; p.a still points to the dangling node, so the
# count should not go down.
p.d = 1
self.assert_(p._numDangling() == 1)
def testIterators_12_Deletion(self):
p = TreeDict()
p.a = 1
p.b = 2
p.c = 3
p.d = 4
p.e = 5
it = p.iterkeys()
self.assertRaises(RuntimeError, lambda: p.pop('a'))
it.next()
self.assertRaises(RuntimeError, lambda: p.pop('a'))
del it
p.pop('a')
def testBranch_05_Overwrite(self):
# Decided this is okay
p = TreeDict()
p.d.a = 1
p.d = 1