Added test 230

Author: javadev

src/test/ts/g0201_0300/s0230_kth_smallest_element_in_a_bst/solution.test.ts

@@ -0,0 +1,14 @@
+// tslint:disable:no-magic-numbers
+import { createTreeNode } from 'src/main/ts/com_github_leetcode/treenode'
+import { kthSmallest } from 'src/main/ts/g0201_0300/s0230_kth_smallest_element_in_a_bst/solution'
+import { expect, test } from 'vitest'
+
+test('kthSmallest', () => {
+    const tree = createTreeNode([3, 1, 4, null, 2])
+    expect(kthSmallest(tree, 1)).to.equal(1)
+})
+
+test('kthSmallest2', () => {
+    const tree = createTreeNode([5, 3, 6, 2, 4, null, null, 1])
+    expect(kthSmallest(tree, 3)).to.equal(3)
+})