本文整理匯總了Python中bst.Bst.isempty方法的典型用法代碼示例。如果您正苦於以下問題：Python Bst.isempty方法的具體用法？Python Bst.isempty怎麽用？Python Bst.isempty使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類bst.Bst的用法示例。
在下文中一共展示了Bst.isempty方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: test_isempty
# 需要導入模塊: from bst import Bst [as 別名]
# 或者: from bst.Bst import isempty [as 別名]
def test_isempty(self):
tree = Bst()
self.assertTrue(tree.isempty())
ARBITRARY_SIZE = 5
tree.size = ARBITRARY_SIZE
self.assertFalse(tree.isempty())示例2: remove_one_child_root
# 需要導入模塊: from bst import Bst [as 別名]
# 或者: from bst.Bst import isempty [as 別名]
def remove_one_child_root():
"""Removing root in a tree where the root has only one child"""
tree = Bst()
tree.add(ROOT_DATA)
tree.add(LEFT_DATA)
self.assertFalse(tree.isempty())
self.assertEquals(tree.getsize(), 2)
self.assertEquals(tree.root.getleft().getdata(), LEFT_DATA)
val = tree.remove(ROOT_DATA)
self.assertFalse(tree.isempty())
self.assertEquals(tree.getsize(), 1)
self.assertEquals(val, ROOT_DATA)
self.assertIsNotNone(tree.root)
self.assertNotEquals(tree.root.getdata(), ROOT_DATA)
self.assertEquals(tree.root, Node(LEFT_DATA))示例3: test_contains
# 需要導入模塊: from bst import Bst [as 別名]
# 或者: from bst.Bst import isempty [as 別名]
def test_contains(self):
# Test with a root only
tree = root_only()
self.assertFalse(tree.isempty())
self.assertEquals(tree.getsize(), 1)
self.assertIsNotNone(tree.root)
self.assertEquals(tree.root.getdata(), ROOT_DATA)
# Should contain the root data
self.assertTrue(tree.contains(ROOT_DATA))
# Should not contain any of the children data
self.assertFalse(tree.contains(LEFT_DATA))
self.assertFalse(tree.contains(RIGHT_DATA))
# Should not contain any of the grandchildren data
self.assertFalse(tree.contains(LL_DATA))
self.assertFalse(tree.contains(LR_DATA))
self.assertFalse(tree.contains(RL_DATA))
self.assertFalse(tree.contains(RR_DATA))
tree.remove(ROOT_DATA)
self.assertTrue(tree.isempty())
self.assertIsNone(tree.root)
self.assertFalse(tree.contains(ROOT_DATA))
# Now test with the balanced tree
tree = balanced_tree()
self.assertFalse(tree.isempty())
self.assertEquals(tree.getsize(), 7)
self.assertIsNotNone(tree.root)
self.assertEquals(tree.root.getdata(), ROOT_DATA)
# Should contain the root data
self.assertTrue(tree.contains(ROOT_DATA))
# Should not contain any of the children data
self.assertTrue(tree.contains(LEFT_DATA))
self.assertTrue(tree.contains(RIGHT_DATA))
# Should not contain any of the grandchildren data
self.assertTrue(tree.contains(LL_DATA))
self.assertTrue(tree.contains(LR_DATA))
self.assertTrue(tree.contains(RL_DATA))
self.assertTrue(tree.contains(RR_DATA))
TO_ADD_DATA = 50
self.assertFalse(tree.contains(TO_ADD_DATA))
tree.add(TO_ADD_DATA)
self.assertTrue(tree.getsize(), 8)
self.assertTrue(tree.contains(TO_ADD_DATA))
# Finally, test with an empty tree
tree = Bst()
self.assertTrue(tree.isempty())
self.assertIsNone(tree.root)
# Should not contain the root data
self.assertFalse(tree.contains(ROOT_DATA))
# Should not contain any of the children data
self.assertFalse(tree.contains(LEFT_DATA))
self.assertFalse(tree.contains(RIGHT_DATA))
# Should not contain any of the grandchildren data
self.assertFalse(tree.contains(LL_DATA))
self.assertFalse(tree.contains(LR_DATA))
self.assertFalse(tree.contains(RL_DATA))
self.assertFalse(tree.contains(RR_DATA))