delete unit test for bst added

Author: SHEEVOOT

src/_DataStructures_/Trees/BinarySearchTree/BinarySearchTree.test.js

@@ -12,14 +12,14 @@ describe('Data Structure : Binary Search Tree', () => {
             bst = new BST(5);
         });
 
-        it('Should insert() element to Binary Search Tree', () => {
+        it('Should delete() an element from Binary Search Tree', () => {
             bst.add(4);
             bst.add(9);
             bst.add(2);
-            bst.insert(bst.root, 3);
-            expect(bst.traverseInorder()).toEqual([2, 3, 4, 5, 9]);
-            bst.insert(bst.root, 7);
-            expect(bst.traverseInorder()).toEqual([2, 3, 4, 5, 7, 9]);
+            bst.delete(bst.root, 4);
+            expect(bst.traverseInorder()).toEqual([2, 5, 9]);
+            bst.delete(bst.root, 2);
+            expect(bst.traverseInorder()).toEqual([5, 9]);
         });
     });
 });