      "\t\tmyTree.delete(2)\n",
      "\t\tassert_equal(myTree.root.rightChild.data, 3)\n",
      "        \n",
      "\t\tprint(\"Test: delete invalid value\")\n",
      "\t\tassert_equal(myTree.delete(100), False)\n",
      "\n",
      "\n",
      "\t\tprint(\"Success: test_delete\")\n",
      "\n",
      "def main():\n",
 
</s> remove     "\t\tassert_equal(myTree.delete(100), False)\n",
 </s> add     "\t\tself.assertEqual(myTree.delete(100), False)\n", </s> remove     "\t\tassert_equal(myTree.root.rightChild.data, 3)\n",
 </s> add     "\t\tself.assertEqual(myTree.root.rightChild.data, 3)\n", </s> remove     "\t\tassert_equal(myTree.root.rightChild.data, 3)\n",
 </s> add     "\t\tself.assertEqual(myTree.root.rightChild.data, 3)\n", </s> remove     "\t\tassert_equal(myTree.treeIsEmpty(), True)\n",
 </s> add     "\t\tself.assertEqual(myTree.treeIsEmpty(), True)\n", </s> remove     "\t\tassert_equal(myTree.treeIsEmpty(), True)\n",
 </s> add     "\t\tself.assertEqual(myTree.treeIsEmpty(), True)\n",
    "\t\tself.assertEqual(myTree.delete(100), False)\n",
      "\t\tmyTree.delete(2)\n",
      "\t\tassert_equal(myTree.root.rightChild.data, 3)\n",
      "        \n",
      "\t\tprint(\"Test: delete invalid value\")\n",
    "\t\tself.assertEqual(myTree.delete(100), False)\n",
      "\n",
      "\n",
      "\t\tprint(\"Success: test_delete\")\n",
      "\n",
      "def main():\n",
keep keep keep keep replace keep keep keep keep keep
 #273: Remove nose dependency for staging/ (#283) 
staging/graphs_trees/binary_tree/binary_tree_challenge.ipynb