feat: added new math operations (one test will fail)

math.js

@@ -6,4 +6,12 @@ function subtract(a, b) {
   return a - b;
 }
 
-module.exports = { add, subtract };
+function multiply(a, b) {
+  return a * b;
+}
+
+function divide(a, b) {
+  return a / b;
+}
+
+module.exports = { add, subtract, multiply, divide };

math.test.js

@@ -1,4 +1,4 @@
-const { add, subtract } = require("./math");
+const { add, subtract, multiply, divide } = require("./math");
 
 it("should add two numbers", () => {
   expect(add(1, 2)).toBe(3);
@@ -7,3 +7,11 @@ it("should add two numbers", () => {
 it("should subtract two numbers", () => {
   expect(subtract(1, 2)).toBe(-1);
 });
+
+it("should multiply two numbers", () => {
+  expect(multiply(2, 3)).toBe(6);
+});
+
+it("should divide two numbers", () => {
+  expect(divide(1, 2)).toBe(0.5);
+});