Implement addition

examples/basic-math/src/arithmetic.js

@@ -1,4 +1,6 @@
-export const add = () => {};
+export const add = (a, b) => {
+  return a + b;
+};
 
 export const subtract = () => {};
 

examples/basic-math/src/arithmetic.test.js

@@ -1,6 +1,11 @@
 import { describe, it, expect } from 'vitest';
+import { add } from './arithmetic.js';
 
-describe.todo('add', () => {});
+describe('add', () => {
+  it('should add two positive numbers', () => {
+    expect(add(2, 2)).toBe(4);
+  });
+});
 
 describe.todo('subtract', () => {});
 

examples/scratchpad/index.js

@@ -1,5 +0,0 @@
-import { it, expect } from 'vitest';
-
-it('is a super simple test', () => {
-  expect(true).toBe(true);
-});