Merge pull request #149 from nanlioniya/313553005

[LAB2] 313553005

Author: AxelHowe

lab2/main_test.js

@@ -1,6 +1,124 @@
-const test = require('node:test');
-const assert = require('assert');
-const { Application, MailSystem } = require('./main');
+const { test } = require('node:test');
+const assert = require('node:assert');
+const { Application, MailSystem } = require('./main.js');
+const fs = require('fs');
+
+/*
+    function coverage testing:
+    - MailSystem
+        - write
+        - send
+    - Application
+        - getNames
+        - getRandomPerson
+        - selectNextPerson
+        - notifySelected
+*/
+
+test('MailSystem write test', (t) => {
+    const mail = new MailSystem();
+    const result = mail.write('Test');
+    assert.equal(result, 'Congrats, Test!');
+});
+
+// Test Stub
+test('MailSystem send test', (t) => {
+    const mail = new MailSystem();
+    const originalRandom = Math.random;
+    
+    // Test success case
+    Math.random = () => 1;
+    assert.equal(mail.send('Test', 'content'), true);
+    
+    // Test failure case
+    Math.random = () => 0;
+    assert.equal(mail.send('Test', 'content'), false);
+    
+    Math.random = originalRandom;
+});
+
+// Application tests
+test('Application initialization test', async (t) => {
+    // 準備測試檔案
+    fs.writeFileSync('name_list.txt', 'Test1\nTest2\nTest3');
+  
+    try {
+      const app = new Application();
+      await new Promise(resolve => setTimeout(resolve, 100)); // 等待初始化完成
+  
+      assert(Array.isArray(app.people));
+      assert(Array.isArray(app.selected));
+      assert.equal(app.people.length, 3);
+      assert.equal(app.selected.length, 0);
+    } finally {
+      // 清理測試檔案
+      fs.unlinkSync('name_list.txt');
+    }
+});
+
+
+test('Application selectNextPerson test', async (t) => {
+    // 準備測試檔案
+    fs.writeFileSync('name_list.txt', 'Test1\nTest2\nTest3');
+  
+    try {
+        const app = new Application();
+        await new Promise(resolve => setTimeout(resolve, 100)); // 等待初始化完成
+
+        const person1 = app.selectNextPerson();
+        assert(app.people.includes(person1));
+        assert.equal(app.selected.length, 1);
+
+        const person2 = app.selectNextPerson();
+        assert(app.people.includes(person2));
+        assert.equal(app.selected.length, 2);
+        assert.notEqual(person1, person2);
+
+        const person3 = app.selectNextPerson();
+        assert(app.people.includes(person3));
+        assert.equal(app.selected.length, 3);
+
+        // 當所有人都被選中後，應該返回 null
+        const person4 = app.selectNextPerson();
+        assert.equal(person4, null);
+    } finally {
+        // 清理測試檔案
+        fs.unlinkSync('name_list.txt');
+    }
+});
+
+
+// Mock Object 
+test('Application notifySelected test', async (t) => {
+    // 準備測試檔案
+    fs.writeFileSync('name_list.txt', 'Test1\nTest2');
+
+    try {
+        const app = new Application();
+        await new Promise(resolve => setTimeout(resolve, 100)); // 等待初始化完成
+        
+        app.selectNextPerson(); // 選擇第一個人
+        app.selectNextPerson(); // 選擇第二個人
+
+        // Mock MailSystem methods
+        let writeCount = 0;
+        let sendCount = 0;
+        app.mailSystem.write = (name) => {
+        writeCount++;
+        return `Congrats, ${name}!`;
+        };
+        app.mailSystem.send = (name, context) => {
+        sendCount++;
+        return true;
+        };
+        
+        app.notifySelected();
+        assert.equal(writeCount, 2);
+        assert.equal(sendCount, 2);
+    } finally {
+        // 清理測試檔案
+        fs.unlinkSync('name_list.txt');
+    }
+});
+
 
-// TODO: write your tests here
-// Remember to use Stub, Mock, and Spy when necessary