Merge pull request #104 from nelsonchen304/110550144

[LAB2] 110550144

lab2/main_test.js

@@ -1,6 +1,95 @@
-const test = require('node:test');
+const fs = require('fs');
+const { mock, test } = require('node:test');
 const assert = require('assert');
+mock.method(fs, 'readFile', (path, opt, cb) => {
+    cb(null, 'Bob\nAlice');
+});
 const { Application, MailSystem } = require('./main');
 
-// TODO: write your tests here
-// Remember to use Stub, Mock, and Spy when necessary
+test('MailSystem write', (t) => {
+    const mailsys = new MailSystem();
+    const expected_logs = '--write mail for Bob--';
+    let logs = '';
+    t.mock.method(console, 'log', (msg) => {
+        logs += msg;
+    });
+    assert.strictEqual(mailsys.write('Bob'), 'Congrats, Bob!');
+    assert.strictEqual(logs, expected_logs);
+});
+
+test('MailSystem send', (t) => {
+    const mailsys = new MailSystem();
+    const expected_logs = 
+        '--send mail to Alice--' +
+        'mail failed' +
+        '--send mail to Alice--' +
+        'mail sent';
+    let logs = '';
+    t.mock.method(console, 'log', (msg) => {
+        logs += msg;
+    });
+    t.mock.method(Math, 'random', () => 0.0);
+    assert.strictEqual(mailsys.send('Alice'), false);
+    t.mock.method(Math, 'random', () => 0.9);
+    assert.strictEqual(mailsys.send('Alice'), true);
+    assert.strictEqual(logs, expected_logs);
+});
+
+test('Application getNames', async () => {
+    const app = new Application();
+    assert.deepStrictEqual(await app.getNames(), [['Bob', 'Alice'], []]);
+});
+
+test('Application getRandomPerson', (t) => {
+    const app = new Application();
+    app.people = ['Bob', 'Alice', 'Mallory'];
+    t.mock.method(Math, 'random', () => 0);
+    assert.strictEqual(app.getRandomPerson(), 'Bob');
+    t.mock.method(Math, 'random', () => 0.9);
+    assert.strictEqual(app.getRandomPerson(), 'Mallory');
+});
+
+test('Application selectNextPerson', (t) => {
+    const app = new Application();
+    const expected_logs =
+        '--select next person--' +
+        '--select next person--' +
+        'all selected';
+    let logs = '';
+    t.mock.method(console, 'log', (msg) => {
+        logs += msg;
+    });
+    app.people = ['Bob', 'Alice'];
+    app.selected = ['Bob'];
+    let visit = false;
+    t.mock.method(app, 'getRandomPerson', () => {
+        if (visit) return 'Alice';
+        visit = true;
+        return 'Bob';
+    });
+    assert.strictEqual(app.selectNextPerson(), 'Alice');
+    assert.deepStrictEqual(app.selected, ['Bob', 'Alice']);
+    assert.strictEqual(app.selectNextPerson(), null);
+    assert.strictEqual(logs, expected_logs);
+});
+
+test('Aplication notifySelected', (t) => {
+    const app = new Application();
+    const expected_logs =
+        '--notify selected--' +
+        '--write mail for Bob--' +
+        '--send mail to Bob--' +
+        'mail sent' +
+        '--write mail for Alice--' +
+        '--send mail to Alice--' +
+        'mail sent';
+    let logs = '';
+    t.mock.method(console, 'log', (msg) => {
+        logs += msg;
+    });
+    t.mock.method(Math, 'random', () => 0.9);
+    app.selected = ['Bob', 'Alice'];
+    app.notifySelected();
+    assert.strictEqual(logs, expected_logs);
+});
+