add: 最大数值

test/math/maximum-lcci.test.js

@@ -0,0 +1,8 @@
+import { maximum } from '../../src/math/maximum-lcci'
+
+test('最大数值', () => {
+  expect(maximum(1, 2)).toBe(2)
+  expect(maximum(108, 133)).toBe(133)
+  expect(maximum(199, 133)).toBe(199)
+  expect(maximum(2147483647, -2147483648)).toBe(2147483647)
+})