add add.test.ts for testing section #1

add.test.ts

@@ -0,0 +1,12 @@
+import tap, { Test } from 'tap';
+import { add } from './add.ts';
+
+tap.test('add two numbers', (t: Test) => {
+  t.equal(add(1, 2), 3);
+  t.end();
+})
+
+tap.test('add a negative number should work', (t: Test) => {
+  t.equal(add(1, -2), -1);
+  t.end();
+})

add.ts

@@ -1,5 +1,3 @@
 export function add(x: number, y: number): number {
   return x + y;
-}
-
-console.log(add(1, 2))
+}