WIP App testing

.gitignore

@@ -4,4 +4,5 @@
 */.DS_Store
 */node_modules
 */migrations
+*/coverage
 .DS_Store

app/babel.config.js

@@ -0,0 +1,3 @@
+module.exports = {
+  presets: [['@babel/preset-env', { targets: { node: 'current' } }]],
+};

app/package.json

@@ -23,11 +23,25 @@
     "zod": "3.22.4"
   },
   "devDependencies": {
+    "@babel/core": "^7.24.0",
+    "@babel/preset-env": "^7.24.0",
+    "@babel/preset-typescript": "^7.23.3",
     "@types/express": "^4.17.13",
+    "@types/jest": "^29.5.12",
     "@types/react": "^18.0.37",
     "@types/react-router-dom": "^5.3.3",
+    "babel-jest": "^29.7.0",
+    "jest": "^29.7.0",
     "prisma": "4.16.2",
+    "ts-jest": "^29.1.2",
     "typescript": "^5.1.0",
     "vite": "^4.3.9"
+  },
+  "scripts": {
+    "test": "jest --verbose"
+  },
+  "jest": {
+    "preset": "ts-jest",
+    "testEnvironment": "node"
   }
 }

app/src/test/client/sum_client.js

@@ -0,0 +1,4 @@
+function sum(a, b) {
+  return a + b;
+}
+module.exports = sum;

app/src/test/client/sum_client.test.js

@@ -0,0 +1,5 @@
+const sum = require('./sum_client');
+
+test('adds 1 + 2 to equal 3', () => {
+  expect(sum(1, 2)).toBe(3);
+});

app/src/test/server/sum_server.test.ts

@@ -0,0 +1,7 @@
+import {sum} from './sum_server';
+
+describe('sum module', () => {
+  test('adds 1 + 2 to equal 3', () => {
+    expect(sum(1, 2)).toBe(3);
+  });
+});

app/src/test/server/sum_server.ts

@@ -0,0 +1,5 @@
+// sum.ts
+export function sum(a: number, b: number): number {
+  return a + b;
+}
+