def test_left(self):
        self.subject.root = Node(80)
        self.subject.root.left = Node(30)

        result = self.subject.traverse(mode='postorder')

        self.assertEqual([30, 80], result)
Esempio n. 2
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    def test_left(self):
        self.subject.root = Node(100)
        self.subject.root.left = Node(50)

        result = self.subject.search(50)

        self.assertEqual(Node(50), result)
Esempio n. 3
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def test_in():
    root = Node(1)
    root.insert(2)
    root.insert(3)
    assert (0 in root) == False
    assert (1 in root) == True
    assert (3 in root) == True
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    def test_right(self):
        self.subject.root = Node(100)
        self.subject.root.right = Node(150)

        result = self.subject.search(150)

        self.assertEqual(Node(150), result)
Esempio n. 5
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def test_bst_left_setter_child():
    """test that left child setter works"""
    from bst import Node
    node1 = Node(9)
    node2 = Node(7)
    node1.left = node2
    assert node1.left.val == node2.val
    def test_right(self):
        self.subject.root = Node(80)
        self.subject.root.right = Node(100)

        result = self.subject.traverse(mode='level_order')

        self.assertEqual([80, 100], result)
Esempio n. 7
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def test_bst_right_setter_parent():
    """test that right child setter sets parent"""
    from bst import Node
    node1 = Node(7)
    node2 = Node(9)
    node1.right = node2
    assert node2.parent.val == node1.val
Esempio n. 8
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def test_bst_right_setter_child():
    """test rigth child setter works"""
    from bst import Node
    node1 = Node(7)
    node2 = Node(9)
    node1.right = node2
    assert node1.right.val == node2.val
Esempio n. 9
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def test_bst_parent_setter_child_parent():
    """test parent setter works properly"""
    from bst import Node
    node1 = Node(1)
    node2 = Node(2)
    node2.parent = node1
    assert node1.val == node2.parent.val
    def test_left(self):
        self.subject.root = Node(80)
        self.subject.root.left = Node(30)

        result = self.subject.traverse(mode='level_order')

        self.assertEqual([80, 30], result)
Esempio n. 11
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def test_bst_parent_setter_parent_child_left():
    """test that parent setter sets child left properly"""
    from bst import Node
    node1 = Node(2)
    node2 = Node(1)
    node2.parent = node1
    assert node1.left.val == node2.val
Esempio n. 12
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    def test_height_one(self):
        self.subject.root = Node(5)
        self.subject.root.right = Node(8)

        result = self.subject.calculate_height()

        self.assertEqual(1, result)
    def test_right(self):
        self.subject.root = Node(80)
        self.subject.root.right = Node(100)

        result = self.subject.traverse(mode='postorder')

        self.assertEqual([100, 80], result)
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 def is_size_consistent(current):
     if current is None: return True
     if current.count != 1 + Node.size(current.left) + \
         Node.size(current.right):
         return False
     return is_size_consistent(current.left) and \
         is_size_consistent(current.right)
Esempio n. 15
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def test_bst_del_right_child():
    """test deleter on right child"""
    from bst import Node
    node1 = Node(7)
    node2 = Node(9)
    node1.right = node2
    del node1.right
    assert node1.right is None
Esempio n. 16
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def test_find():
    root = Node(1)
    root.insert(2)
    root.insert(-5)
    assert root.find(1) is root
    assert root.find(100) is None
    assert root.find(2) is root.right
    assert root.find(-5) is root.left
    def test_left_subtree(self):
        self.subject.root = Node(5)
        self.subject.root.left = Node(4)
        self.subject.root.left.left = Node(3)

        result = self.subject.traverse(mode='level_order')

        self.assertEqual([5, 4, 3], result)
    def test_right_subtree(self):
        self.subject.root = Node(3)
        self.subject.root.right = Node(4)
        self.subject.root.right.right = Node(5)

        result = self.subject.traverse(mode='level_order')

        self.assertEqual([3, 4, 5], result)
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 def _create_min_bst(self, array, start, end):
     if end < start:
         return None
     mid = (start + end) // 2
     node = Node(array[mid])
     node.left = self._create_min_bst(array, start, mid - 1)
     node.right = self._create_min_bst(array, mid + 1, end)
     return node
Esempio n. 20
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def test_bst_del_left_child():
    """test deleter on left child"""
    from bst import Node
    node1 = Node(9)
    node2 = Node(7)
    node1.left = node2
    del node1.left
    assert node1.left is None
Esempio n. 21
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def test_rotate_left():
    from bst import Node
    node1 = Node()
    node2 = Node()
    node2.right = node1
    node1.rotate_right()
    assert node1.right == node2
    assert not node2.left
Esempio n. 22
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 def test_init(self):
     node1 = Node(5)
     node2 = Node(4)
     assert (node1.data == 5)
     assert (node1.left == None)
     assert (node1.right == None)
     assert (node2.data == 4)
     assert (node2.left == None)
     assert (node2.right == None)
Esempio n. 23
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def test_bst_init_node_has_right(empty_bst):
    """test Node picks up arguments and has_right_child == that input"""
    from bst import Node
    a = Node(empty_bst.input_val,
             empty_bst.input_val,
             empty_bst.input_val,
             empty_bst.input_val
             )
    assert a.has_right_child() == empty_bst.input_val
def balanced_bst_from_sorted_array(arr, start, end):
    if start > end:
        return

    mid = (start + end) / 2
    root = Node(arr[mid])
    root.left = balanced_bst_from_sorted_array(arr, start, mid - 1)
    root.right = balanced_bst_from_sorted_array(arr, mid + 1, end)
    return root
Esempio n. 25
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def inordersearch(lroot, mroot):
    arr = []
    if lroot:
        arr = arr + inordersearch(lroot.left, mroot)
        if lroot.val != None and Node.search(
                mroot, lroot.val) != None and Node.search(mroot,
                                                          lroot.val) != mroot:
            arr.append(lroot.val)
        arr = arr + inordersearch(lroot.right, mroot)
    return arr
Esempio n. 26
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    def __clone(node):
        if not node:
            return

        new_root = Node(node.key, node.data)
        new_left = __clone(node.left)
        new_right = __clone(node.right)
        new_root.left = new_left
        new_root.right = new_right
        return new_root
    def test_uneven_tree(self):
        self.subject.root = Node(10)
        self.subject.root.left = Node(8)
        self.subject.root.right = Node(12)
        self.subject.root.left.right = Node(9)
        self.subject.root.right.left = Node(11)

        result = self.subject.traverse(mode='level_order')

        self.assertEqual([10, 8, 12, 9, 11], result)
    def test_uneven_tree(self):
        self.subject.root = Node(10)
        self.subject.root.left = Node(8)
        self.subject.root.right = Node(12)
        self.subject.root.left.right = Node(9)
        self.subject.root.right.left = Node(11)

        result = self.subject.traverse(mode='postorder')

        self.assertEqual([9, 8, 11, 12, 10], result)
def _sorted_array_to_bst(array, left, right):
	if left == right:
		return Node(array[left])
	if left > right:
		return None

	mid = (left + right) / 2
	root = Node(array[mid])
	root.left = _sorted_array_to_bst(array, left, mid-1)
	root.right = _sorted_array_to_bst(array, mid+1, right)
	return root
Esempio n. 30
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def test_Node_depth():
    from bst import Node
    node1 = Node()
    node2 = Node()
    node3 = Node()
    node4 = Node()
    node1.left = node2
    node1.right = node3
    node3.right = node4
    results = [node1.depth, node2.depth, node3.depth]
    assert results == [3, 1, 2]
Esempio n. 31
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def filled_tree():
    A = Node(6)
    a = BST()
    a.root = A
    A.left = 4
    A.right = 7
    A.left.left = 3
    A.left.right = 5
    A.right.right = 8
    a._size = 6
    return a
Esempio n. 32
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def build_tree(in_order_list, pre_order_list):
    if pre_order_list and in_order_list:
        root_val = pre_order_list.pop(0)
        root = Node(root_val)
        in_order_index = in_order_list.index(root_val)
        root.left = build_tree(in_order_list[:in_order_index], pre_order_list)
        root.right = build_tree(in_order_list[in_order_index + 1:],
                                pre_order_list)
        return root
    else:
        return None
Esempio n. 33
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 def test_init_node(self):
     """
     Tests initialization of Node
     """
     n1 = Node('data')
     self.assertIsInstance(n1, Node)
     self.assertEqual(n1.data, 'data')
     self.assertIsNone(n1.left)
     self.assertIsNone(n1.right)
     # make sure 'value' is writeable
     n1.data = "new_val"
     self.assertEqual(n1.data, 'new_val')
Esempio n. 34
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def getFreeHoursInCommon1(a, b):
    result = [[] for i in range(period)]
    leader = [Node.inorderarr(a[x], [])
              for x in range(period)]  #without time in common
    #leader = [[12, 13, 13.5], [10, 13.5, 15], [13.5, 15], [13.5, 14], [11, 13.5], [13.5], [13.5]] #with time in common
    #print(leader)
    for i in range(len(leader)):
        for j in range(len(leader[i])):
            if Node.search(b[i], leader[i][j]) != None and Node.search(
                    b[i], leader[i][j]) != b[i]:
                result[i].append(leader[i][j])
    return result
Esempio n. 35
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def uneven_tree():
    A = Node(6)
    a = BST()
    a.root = A
    A.left = 4
    A.right = 7
    A.left.left = 3
    A.left.right = 5
    A.right.right = 8
    A.right.right.right = 9
    A.right.right.right.right = 10
    a._size = 6
    return a
Esempio n. 36
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def get_results(file):
    '''
    Pass file name to get result of both Problems.
    '''
    data,root =process_json_file('{0}'.format(file))

    root = Node(root)
    for value in data:
        root.insert(value['score'])

    height = root.maxDepth(root)
    unique_value = len(data) + 1 # Since Middle element is removed as root Node.

    print "Height of Standard Binary Tree is : {0}".format(height)
    print 'Unique dict values are : {0}'.format(unique_value)
Esempio n. 37
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 def create_tree_1(self):
     tree = Node(8)
     tree.insert(12)
     tree.insert(3)
     tree.insert(4)  # Change to 7 to simulate a change in testing fixture
     tree.insert(6)
     return tree
Esempio n. 38
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def test_left_rotation_three_nodes():
    """Test that a right-right becomes balanced."""
    from bst import Bst, Node
    new_bst = Bst()
    node1 = Node(10)
    node2 = Node(15)
    node3 = Node(20)
    new_bst.head = node1
    node1.right = node2
    node2.parent = node1
    node2.right = node3
    node3.parent = node2
    new_bst.head.left_rotation()
    assert node2.parent is None
    assert node2.left == node1
    assert node2.right == node3
    assert node2.left.parent == node2
Esempio n. 39
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def test_right_left_conversion_three_nodes():
    """
    Test that given three nodes in a right-left state converts to right-right.
    """
    from bst import Bst, Node
    new_bst = Bst()
    node1 = Node(10)
    node2 = Node(15)
    node3 = Node(12)
    new_bst.head = node1
    node1.right = node2
    node2.parent = node1
    node2.left = node3
    node3.parent = node2
    new_bst.head.right_left_conversion()
    assert new_bst.head.right == node3
    assert new_bst.head.right.right == node2
    assert new_bst.head.right.right.parent == node3
    assert new_bst.head.right.parent == node1
Esempio n. 40
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def test_Node_setting_left():
    from bst import Node
    node1 = Node()
    node2 = Node()
    node1.left = node2
    assert node1.left == node2
Esempio n. 41
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def test_right_left_conversion_six_nodes():
    """
    Test that given six nodes in a left-right state converts to left-left.
    """
    from bst import Bst, Node
    new_bst = Bst()
    node1 = Node(10)
    node2 = Node(5)
    node3 = Node(15)
    node4 = Node(20)
    node5 = Node(14)
    node6 = Node(13)
    new_bst.head = node1
    node1.left = node2
    node2.parent = node1
    node1.right = node3
    node3.parent = node1
    node3.right = node4
    node4.parent = node3
    node3.left = node5
    node5.parent = node3
    node5.left = node6
    node6.parent = node5
    new_bst.head.right_left_conversion()
    assert new_bst.head.right == node5
    assert new_bst.head.right.right == node3
    assert new_bst.head.right.right.right == node4
Esempio n. 42
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def test_Node_setting_right():
    from bst import Node
    node1 = Node()
    node2 = Node()
    node1.right = node2
    assert node1.right == node2
Esempio n. 43
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def test_Node_parent():
    from bst import Node
    node1 = Node()
    node2 = Node()
    node1.right = node2
    assert node2.parent
Esempio n. 44
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def test_depth_many():
    """Test that a node with one extra on the left has a depth of 2."""
    from bst import Node
    a = Node(20)
    a.left = Node(16)
    assert a.depth() == 2
Esempio n. 45
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def test_balance_right():
    """Test that a right side is larger and returns a negative int."""
    from bst import Node
    a = Node(20)
    a.right = Node(23)
    assert a.balance() == -1
Esempio n. 46
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def test_balance_left():
    """Test that a left side is larger and returns a positive int."""
    from bst import Node
    a = Node(20)
    a.left = Node(18)
    assert a.balance() == 1
Esempio n. 47
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def node_instance2():
    """Create BST instance."""
    from bst import Node
    node = Node()
    node.val = 7
    return node
Esempio n. 48
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def test_balance_one():
    """Test that a node of one returns a depth of one."""
    from bst import Node
    a = Node(1)
    assert a.balance() == 0
Esempio n. 49
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def test_depth_none():
    """Test that a node of nothing returns a value of nothing."""
    from bst import Node
    a = Node()
    assert a.depth() == 0
Esempio n. 50
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def test_balance_none():
    """Test that a node of nothing returns a value of nothing."""
    from bst import Node
    a = Node()
    assert a.balance() == 0
Esempio n. 51
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def test_depth_one():
    """Test that a node of one returns a depth of one."""
    from bst import Node
    a = Node(1)
    assert a.depth() == 1