add: 最小覆盖子串

test/string/minimum-window-substring.test.js

@@ -0,0 +1,9 @@
+import { minWindow } from '../../src/string/minimum-window-substring'
+
+test('最小覆盖子串', () => {
+  expect(minWindow('ab', 'a')).toBe('a')
+  expect(minWindow('ADOBECODEBANC', 'ABC')).toBe('BANC')
+  expect(minWindow('a', 'a')).toBe('a')
+  expect(minWindow('a', 'aa')).toBe('')
+  expect(minWindow('abcdc', 'da')).toBe('abcd')
+})