Update

operations.test.js

@@ -0,0 +1,11 @@
+var operations = require('./operations');
+
+it('should multiply two numbers', function () {
+    var expectedResult = 15;
+    var result = operations.multiply(3, 5);
+    if (result !== expectedResult) {
+        throw new Error(
+            `Expected ${expectedResult}, but got ${result}`
+        );
+    }
+});