def test_oneelementss(self):
"""Tests a linked list with only one key."""
array = [42, 42, 42, 42, 42, 42, 42, 42]
linkedlist = arraytolinkedlist(array)
bst = lltoBST(linkedlist)
self.assertTrue(verify(bst))
self.assertTrue(Node.getheight(bst) <= ceil(log(len(array), 2)))
def test_testbookexample(self):
"""Tests an array containing keys from the tree from text."""
array = [
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53]
linkedlist = arraytolinkedlist(array)
bst = lltoBST(linkedlist)
self.assertTrue(verify(bst))
self.assertTrue(Node.getheight(bst) <= ceil(log(len(array), 2)))
def test_singleelement(self):
"""Tests a linked list with one element."""
linkedlist = Node(key=42)
bst = lltoBST(linkedlist)
self.assertTrue(verify(bst))
self.assertTrue(Node.getheight(bst) <= ceil(log(1, 2)))
def test_threeelements(self):
"""Tests a linked list with three elements."""
linkedlist = Node(key=10, right=Node(key=42, right=Node(key=100)))
bst = lltoBST(linkedlist)
self.assertTrue(verify(bst))
self.assertTrue(Node.getheight(bst) <= ceil(log(3, 2)))
def test_null(self):
"""Tests a null linked list."""
linkedlist = None
bst = lltoBST(linkedlist)
self.assertTrue(verify(bst))
self.assertTrue(Node.getheight(bst) == -1)