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#273: Remove nose dependency for graphs_trees/ (#277)

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This commit is contained in:
Donne Martin
2020-07-10 21:02:32 -04:00
committed by GitHub
parent 139e157250
commit abf7524c26
67 changed files with 860 additions and 1027 deletions
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77
graphs_trees/bst_validate/bst_validate_challenge.ipynb
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@@ -88,21 +88,59 @@
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"metadata": {},
"outputs": [],
"source": [
"%run ../bst/bst.py\n",
"%load ../bst/bst.py"
"# %load ../bst/bst.py\n",
"class Node(object):\n",
"\n",
" def __init__(self, data):\n",
" self.data = data\n",
" self.left = None\n",
" self.right = None\n",
" self.parent = None\n",
"\n",
" def __repr__(self):\n",
" return str(self.data)\n",
"\n",
"\n",
"class Bst(object):\n",
"\n",
" def __init__(self, root=None):\n",
" self.root = root\n",
"\n",
" def insert(self, data):\n",
" if data is None:\n",
" raise TypeError('data cannot be None')\n",
" if self.root is None:\n",
" self.root = Node(data)\n",
" return self.root\n",
" else:\n",
" return self._insert(self.root, data)\n",
"\n",
" def _insert(self, node, data):\n",
" if node is None:\n",
" return Node(data)\n",
" if data <= node.data:\n",
" if node.left is None:\n",
" node.left = self._insert(node.left, data)\n",
" node.left.parent = node\n",
" return node.left\n",
" else:\n",
" return self._insert(node.left, data)\n",
" else:\n",
" if node.right is None:\n",
" node.right = self._insert(node.right, data)\n",
" node.right.parent = node\n",
" return node.right\n",
" else:\n",
" return self._insert(node.right, data)\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": false
},
"metadata": {},
"outputs": [],
"source": [
"class BstValidate(Bst):\n",
@@ -129,21 +167,18 @@
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": false
},
"metadata": {},
"outputs": [],
"source": [
"# %load test_bst_validate.py\n",
"from nose.tools import assert_equal\n",
"from nose.tools import raises\n",
"import unittest\n",
"\n",
"\n",
"class TestBstValidate(object):\n",
"class TestBstValidate(unittest.TestCase):\n",
"\n",
" @raises(Exception)\n",
" def test_bst_validate_empty(self):\n",
" validate_bst(None)\n",
" bst = BstValidate(None)\n",
" bst.validate()\n",
"\n",
" def test_bst_validate(self):\n",
" bst = BstValidate(Node(5))\n",
@@ -152,7 +187,7 @@
" bst.insert(6)\n",
" bst.insert(4)\n",
" bst.insert(7)\n",
" assert_equal(bst.validate(), True)\n",
" self.assertEqual(bst.validate(), True)\n",
"\n",
" bst = BstValidate(Node(5))\n",
" left = Node(5)\n",
@@ -161,14 +196,14 @@
" bst.root.left = left\n",
" bst.root.right = right\n",
" bst.root.left.right = invalid\n",
" assert_equal(bst.validate(), False)\n",
" self.assertEqual(bst.validate(), False)\n",
"\n",
" print('Success: test_bst_validate')\n",
"\n",
"\n",
"def main():\n",
" test = TestBstValidate()\n",
" test.test_bst_validate_empty()\n",
" test.assertRaises(TypeError, test.test_bst_validate_empty)\n",
" test.test_bst_validate()\n",
"\n",
"\n",
@@ -202,9 +237,9 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.5.0"
"version": "3.7.2"
}
},
"nbformat": 4,
"nbformat_minor": 0
"nbformat_minor": 1
}