Generate project with yo node-typescript, modifes gitignore by hand

__tests__/greeter-spec.ts

@@ -0,0 +1,6 @@
+import { Greeter } from '../src/greeter';
+
+test('Should greet with message', () => {
+  const greeter = new Greeter('friend');
+  expect(greeter.greet()).toBe('Bonjour, friend!');
+});

__tests__/index-spec.ts

@@ -0,0 +1,5 @@
+import * as index from '../src/index';
+
+test('Should have Greeter available', () => {
+  expect(index.Greeter).toBeTruthy();
+});