def test(self):
value = 5
t = SplayTree()
# test empty
assert t.isEmpty()
# we cannot splay if tree is empty
assert t.splay(None) is None
# we cannot find anything in empty tree
assert t.find(1) is None
assert t.findMin() is None
assert t.findMax() is None
# cannot remove from empty
assert t.remove(123) is None
# insert into empty tree
t.insert(value)
assert not t.isEmpty()
# insert into non-empty tree same value
t.insert(value)
assert not t.isEmpty()
# insert different values
t = SplayTree()
t.insert(3)
t.insert(5)
t.insert(1)
assert t.findMin() == 1
assert t.findMax() == 5
assert t.find(3) == 3
assert t.find(10) is None
t = SplayTree()
t.insert(5)
t.insert(3)
t.insert(1)
assert t.find(3) == 3
assert t.findMin() == 1
# test remove
t = SplayTree()
t.insert(5)
t.insert(3)
t.insert(1)
t.remove(5)
t.remove(3)
t.remove(1)
assert t.isEmpty()
# test Node.equals()
n1 = Node(3)
n2 = Node(2 + 1)
n3 = Node(1)
assert n1.equals(n2)
assert not n1.equals(n3)
t = SplayTree()
t.insert(7)
t.insert(3)
t.insert(7)
assert t.find(7) == 7
# lets do som RANGE testing !
max = 1000
min = 100
t = SplayTree()
t.insert(min)
t.insert(max)
for i in range(101, 999, 10):
t.insert(i)
assert t.find(i) == i
assert t.findMin() == min
assert t.findMax() == max
