binaryTree/binaryTreeTest.py at master · aarmoa/binaryTree · GitHub

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frombinaryTreeimportTreeNode
frombinaryTreeimportis_bst
importunittest

classBinaryTreeValidationTest(unittest.TestCase):

deftest_validBinaryTreeIsValid(self):

root=TreeNode(5)
root.left=TreeNode(3)
root.right=TreeNode(7)
root.left.left=TreeNode(1)
root.left.right=TreeNode(4)
root.right.left=TreeNode(6)

self.assertTrue(is_bst(root))

deftest_emptyTree(self):
self.assertTrue(is_bst(None))

deftest_invalidTreeIsNotBST(self):

root=TreeNode(20)
root.left=TreeNode(10)
root.right=TreeNode(30)
root.right.left=TreeNode(5)
root.right.right=TreeNode(40)

self.assertFalse(is_bst(root))


if__name__=='__main__':
unittest.main()