[LAB2] 313551801

lab2/main.js

@@ -25,20 +25,15 @@ class MailSystem {
 
 class Application {
     constructor() {
-        this.people = [];
-        this.selected = [];
-        this.mailSystem = new MailSystem();
-        this.getNames().then(([people, selected]) => {
-            this.people = people;
-            this.selected = selected;
-        });
+      this.people = [];
+      this.selected = [];
+      this.mailSystem = new MailSystem();
     }
-
+  
     async getNames() {
-        const data = await readFile('name_list.txt', 'utf8');
-        const people = data.split('\n');
-        const selected = [];
-        return [people, selected];
+      const data = await readFile('name_list.txt', 'utf8');
+      this.people = data.split('\n');
+      this.selected = [];
     }
 
     getRandomPerson() {

lab2/main_test.js

@@ -1,6 +1,58 @@
 const test = require('node:test');
 const assert = require('assert');
 const { Application, MailSystem } = require('./main');
+const sinon = require('sinon');
 
-// TODO: write your tests here
-// Remember to use Stub, Mock, and Spy when necessary
+test('test getRandomPerson in main.js', async () => {
+  const app = new Application();
+
+  app.getNames = async () => {
+    app.people = ['Annika', 'Billy', 'Cecilia'];
+  };
+
+  await app.getNames();
+
+  const person = app.getRandomPerson();
+  assert.ok(app.people.includes(person), 'the person is not in list');
+});
+
+test('test mains selectNextPerson to not select same person twice', async () => {
+  const app = new Application();
+
+  app.getNames = async () => {
+    app.people = ['Annika', 'Billy', 'Cecilia'];
+    app.selected = [];
+  };
+
+  await app.getNames();
+
+  const person1 = app.selectNextPerson();
+  const person2 = app.selectNextPerson();
+
+  assert.notStrictEqual(person1, person2, 'Same person was selected twice');
+});
+
+test('test mains notifySelected that it calls send()', async () => {
+  const mailSystem = new MailSystem();
+  const sendSpy = sinon.spy(mailSystem, 'send');
+
+  const app = new Application();
+  app.mailSystem = mailSystem;
+
+  app.getNames = async () => {
+    app.people = ['Annika', 'Billy', 'Cecilia'];
+    app.selected = [];
+  };
+
+  await app.getNames();
+
+  const person = app.selectNextPerson();
+  app.selected = [person];
+
+  await app.notifySelected();
+
+  assert.ok(
+    sendSpy.calledWith(person, `Congrats, ${person}!`),
+    `send() didn't work with args. Captured calls: ${JSON.stringify(sendSpy.args)}`
+  );
+});