def test_leftonly(self):
"""Test a tree with only a left side."""
s = "42(-100(12(10)[11[17]])[23])"
root = mfs(s, BTN)
self.assertEqual(
root.preordertraversal(),
[42, -100, 12, 10, 11, 17, 23])
def test_bothchildren(self):
"""Test a tree which has both children."""
s = "42(-100(12)[28])[100[111]]"
root = mfs(s, BTN)
self.assertEqual(
root.preordertraversal(),
[42, -100, 12, 28, 100, 111])
def test_rightonly(self):
"""Test a tree with only a right side."""
s = "42[-100(12(10)[11(17)])[32]]"
root = mfs(s, BTN)
self.assertEqual(
root.preordertraversal(),
[42, -100, 12, 10, 11, 17, 32])
def test_singlecase(self):
"""Test a tree with just a root."""
s = "42"
root = mfs(s, BTN)
self.assertEqual(
root.preordertraversal(),
[42])
def test_singlecase(self):
"""Test a tree with just a root."""
s = "42"
root = mfs(s, BTN)
n1 = root.findnode(42)
n2 = root.findnode(42)
self.assertEqual(lca(n1, n2).val, 42)
def test_bothchildren(self):
"""Test a tree which has both children."""
s = "42(-100(12)[28])[100(2000(1)[2])[111]]"
root = mfs(s, BTN)
self.assertEqual(
root.findkunbalanceddescendent(1).val,
100)
self.assertIsNone(root.findkunbalanceddescendent(2))
def test_differentbranches(self):
"""Tests when node1 and node2 are are not their LCA."""
s = (
"1(10(11(12(20(21(22[23(24)[25]]))[200]))" +
"[13(14[15[16(17(18)[19])]])]))" +
"[2[3(33(34)[35])[4(5(6)[7[8(9)]])]]]"
)
root = mfs(s, BTN)
n1 = root.findnode(34)
n2 = root.findnode(9)
self.assertEqual(lca(root, n1, n2).val, 3)
def test_verydifferentbranches(self):
"""Tests when the LCA is the root."""
s = (
"1(10(11(12(20(21(22[23(24)[25]]))[200]))" +
"[13(14[15[16(17(18)[19])]])]))" +
"[2[3(33(34)[35])[4(5(6)[7[8(9)]])]]]"
)
root = mfs(s, BTN)
n1 = root.findnode(34)
n2 = root.findnode(20)
self.assertEqual(lca(n1, n2).val, 1)
def test_node2isLCA(self):
"""Tests when node2 is the LCA of node1 and node2."""
s = (
"1(10(11(12(20(21(22[23(24)[25]]))[200]))" +
"[13(14[15[16(17(18)[19])]])]))" +
"[2[3(33(34)[35])[4(5(6)[7[8(9)]])]]]"
)
root = mfs(s, BTN)
n1 = root.findnode(24)
n2 = root.findnode(20)
self.assertEqual(lca(n1, n2).val, 20)
def test_singlecase(self):
"""Test a tree with just a root."""
s = "42"
root = mfs(s, BTN)
root.fixsize()
self.assertEqual(
root.find_kth_node(1).val,
42)
try:
root.find_kth_node(2)
except IndexError:
pass
def test_rightonly(self):
"""Test a tree with only a right side."""
s = "42[-100(12(10)[11(999)(17)])[32]]"
root = mfs(s, BTN)
self.assertEqual(
root.findkunbalanceddescendent(1).val,
12)
self.assertEqual(
root.findkunbalanceddescendent(2).val,
-100)
self.assertEqual(
root.findkunbalanceddescendent(3).val,
-100)
def test_strictleftonly(self):
"""Test a tree with only left children."""
s = "1(2(3(4(5(6)))))"
root = mfs(s, BTN)
root.fixsize()
self.assertEqual(
root.find_kth_node(1).val,
6)
self.assertEqual(
root.find_kth_node(3).val,
4)
self.assertEqual(
root.find_kth_node(5).val,
2)
def test_exceptionthrow(self):
"""Tests when the node1 and node2 are in different trees."""
s = (
"1(10(11(12(20(21(22[23(24)[25]]))[200]))" +
"[13(14[15[16(17(18)[19])]])]))" +
"[2[3(33(34)[35])[4(5(6)[7[8(9)]])]]]"
)
root = mfs(s, BTN)
n1 = root.findnode(34)
n2 = BTN(42)
try:
lca(n1, n2)
except StandardError:
pass
def test_strictrightonly(self):
"""Test a tree with only right children."""
s = "1[2[3[4[5[6]]]]]"
root = mfs(s, BTN)
root.fixsize()
self.assertEqual(
root.find_kth_node(1).val,
1)
self.assertEqual(
root.find_kth_node(3).val,
3)
self.assertEqual(
root.find_kth_node(5).val,
5)
def test_rightonly(self):
"""Test a tree with only a right side."""
s = "42[-100(12(10)[11(17)])[32]]"
root = mfs(s, BTN)
inord = root.inordertraversal()
preord = root.preordertraversal()
postord = root.postordertraversal()
root2 = mft(BTN, inord, postorder=postord)
inord2 = root2.inordertraversal()
preord2 = root2.preordertraversal()
postord2 = root2.postordertraversal()
self.assertEqual(inord, inord2)
self.assertEqual(preord, preord2)
self.assertEqual(postord, postord2)
def test_singlecase(self):
"""Test a tree with just a root."""
s = "42"
root = mfs(s, BTN)
inord = root.inordertraversal()
preord = root.preordertraversal()
postord = root.postordertraversal()
root2 = mft(BTN, inord, postorder=postord)
inord2 = root2.inordertraversal()
preord2 = root2.preordertraversal()
postord2 = root2.postordertraversal()
self.assertEqual(inord, inord2)
self.assertEqual(preord, preord2)
self.assertEqual(postord, postord2)
def test_leftonly(self):
"""Test a tree with only a left side."""
s = "42(-100(12(10)[11[17]])[23])"
root = mfs(s, BTN)
inord = root.inordertraversal()
preord = root.preordertraversal()
postord = root.postordertraversal()
root2 = mft(BTN, inord, preorder=preord)
inord2 = root2.inordertraversal()
preord2 = root2.preordertraversal()
postord2 = root2.postordertraversal()
self.assertEqual(inord, inord2)
self.assertEqual(preord, preord2)
self.assertEqual(postord, postord2)
def test_singlecase(self):
"""Test a tree with just a root."""
array = [42, None, None]
s = "42"
root = mbt(array)
root_ = mfs(s, BTN)
self.assertEqual(
root.preordertraversal(),
root_.preordertraversal())
self.assertEqual(
root.preordertraversal(),
root_.preordertraversal())
self.assertEqual(
root.postordertraversal(),
root_.postordertraversal())
def test_bothchildren(self):
"""Test a tree which has both children."""
s = "42(-100(12)[28])[100[111]]"
root = mfs(s, BTN)
inord = root.inordertraversal()
preord = root.preordertraversal()
postord = root.postordertraversal()
root2 = mft(BTN, inord, preorder=preord)
inord2 = root2.inordertraversal()
preord2 = root2.preordertraversal()
postord2 = root2.postordertraversal()
self.assertEqual(inord, inord2)
self.assertEqual(preord, preord2)
self.assertEqual(postord, postord2)
def test_leftonly(self):
"""Test a tree with only a left side."""
s = "42(-100(12(10)[11[17[112233]]])[23])"
root = mfs(s, BTN)
self.assertEqual(
root.findkunbalanceddescendent(1).val,
11)
self.assertEqual(
root.findkunbalanceddescendent(2).val,
-100)
self.assertEqual(
root.findkunbalanceddescendent(3).val,
-100)
self.assertEqual(
root.findkunbalanceddescendent(4).val,
42)
def test_strictrightonly(self):
"""Test a tree with only right children."""
s = "1[2[3[4[5[6]]]]]"
root = mfs(s, BTN)
self.assertEqual(
root.findkunbalanceddescendent(1).val,
4)
self.assertEqual(
root.findkunbalanceddescendent(2).val,
3)
self.assertEqual(
root.findkunbalanceddescendent(3).val,
2)
self.assertEqual(
root.findkunbalanceddescendent(4).val,
1)
def test_strictleftonly(self):
"""Test a tree with only left children."""
s = "1(2(3(4(5(6)))))"
root = mfs(s, BTN)
self.assertEqual(
root.findkunbalanceddescendent(1).val,
4)
self.assertEqual(
root.findkunbalanceddescendent(2).val,
3)
self.assertEqual(
root.findkunbalanceddescendent(3).val,
2)
self.assertEqual(
root.findkunbalanceddescendent(4).val,
1)
def test_leftonly(self):
"""Test a tree with only a left side."""
s = "42(-100(12(10)[11[17[112233]]])[23])"
root = mfs(s, BTN)
root.fixsize()
self.assertEqual(
root.find_kth_node(1).val,
10)
self.assertEqual(
root.find_kth_node(3).val,
11)
self.assertEqual(
root.find_kth_node(5).val,
112233)
self.assertEqual(
root.find_kth_node(7).val,
23)
def test_bothchildren(self):
"""Test a tree which has both children."""
array = [
42, -100, 12, None, None, 28, None, None, 100, None, 111, None,
None]
s = "42(-100(12)[28])[100[111]]"
root = mbt(array)
root_ = mfs(s, BTN)
self.assertEqual(
root.preordertraversal(),
root_.preordertraversal())
self.assertEqual(
root.preordertraversal(),
root_.preordertraversal())
self.assertEqual(
root.postordertraversal(),
root_.postordertraversal())
def test_rightonly(self):
"""Test a tree with only a right side."""
array = [
42, None, -100, 12, 10, None, None, 11, 17, None, None, None,
32, None, None]
s = "42[-100(12(10)[11(17)])[32]]"
root = mbt(array)
root_ = mfs(s, BTN)
self.assertEqual(
root.preordertraversal(),
root_.preordertraversal())
self.assertEqual(
root.preordertraversal(),
root_.preordertraversal())
self.assertEqual(
root.postordertraversal(),
root_.postordertraversal())
def test_rightonly(self):
"""Test a tree with only a right side."""
s = "42[-100(12(10)[11(999)[17]])[32]]"
root = mfs(s, BTN)
root.fixsize()
self.assertEqual(
root.find_kth_node(1).val,
42)
self.assertEqual(
root.find_kth_node(3).val,
12)
self.assertEqual(
root.find_kth_node(5).val,
11)
self.assertEqual(
root.find_kth_node(7).val,
-100)
def test_leftonly(self):
"""Test a tree with only a left side."""
array = [
42, -100, 12, 10, None, None, 11, None, 17, None, None, 23,
None, None, None]
s = "42(-100(12(10)[11[17]])[23])"
root = mbt(array)
root_ = mfs(s, BTN)
self.assertEqual(
root.preordertraversal(),
root_.preordertraversal())
self.assertEqual(
root.preordertraversal(),
root_.preordertraversal())
self.assertEqual(
root.postordertraversal(),
root_.postordertraversal())
def test_bothchildren(self):
"""Test a tree which has both children."""
s = "42(-100(12)[28])[100(2000(1)[2])[111]]"
root = mfs(s, BTN)
root.fixsize()
self.assertEqual(
root.find_kth_node(1).val,
12)
self.assertEqual(
root.find_kth_node(3).val,
28)
self.assertEqual(
root.find_kth_node(5).val,
1)
self.assertEqual(
root.find_kth_node(7).val,
2)
self.assertEqual(
root.find_kth_node(9).val,
111)
def test_singlecase(self):
"""Test a tree with just a root."""
s = "42"
root = mfs(s, BTN)
self.assertTrue(root.isbalanced())
def test_singlecase(self):
"""Test a tree with just a root."""
s = "42"
root = mfs(s, BTN)
self.assertIsNone(root.findkunbalanceddescendent(1))