From 27a4b8c691ace3822a10162bf2bb0f6475669b5d Mon Sep 17 00:00:00 2001
From: as10968574 <chiehfeng.cs10@nycu.edu.tw>
Date: Wed, 5 Jun 2024 19:49:15 +0800
Subject: [PATCH] Update main_test.js

---
 lab3/main_test.js | 57 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 56 insertions(+), 1 deletion(-)

diff --git a/lab3/main_test.js b/lab3/main_test.js
index 096fd421..96dbd2f0 100644
--- a/lab3/main_test.js
+++ b/lab3/main_test.js
@@ -2,4 +2,59 @@ const { describe, it } = require('node:test');
 const assert = require('assert');
 const { Calculator } = require('./main');
 
-// TODO: write your tests here
+describe('Calculator', () => {
+    const calculator = new Calculator();
+
+    describe('exp function', () => {
+        it('calculates the exponential of a number', async () => {
+            assert.strictEqual(calculator.exp(1), Math.exp(1));
+        });
+
+        it('throws error on non-finite input', async () => {
+            assert.throws(() => calculator.exp('a'), {
+                name: 'Error',
+                message: 'unsupported operand type'
+            });
+            assert.throws(() => calculator.exp(Infinity), {
+                name: 'Error',
+                message: 'unsupported operand type'
+            });
+        });
+
+        it('handles overflow', async () => {
+            assert.throws(() => calculator.exp(1000), {
+                name: 'Error',
+                message: 'overflow'
+            });
+        });
+    });
+
+    describe('log function', () => {
+        it('calculates the logarithm of a number', async () => {
+            assert.strictEqual(calculator.log(Math.E), Math.log(Math.E));
+        });
+
+        it('throws error on non-finite input', async () => {
+            assert.throws(() => calculator.log('a'), {
+                name: 'Error',
+                message: 'unsupported operand type'
+            });
+            assert.throws(() => calculator.log(-1), {
+                name: 'Error',
+                message: 'math domain error (1)'
+            });
+        });
+
+        it('handles domain errors', async () => {
+            assert.throws(() => calculator.log(0), {
+                name: 'Error',
+                message: 'math domain error (1)'
+            });
+            assert.throws(() => calculator.log(null), {
+                name: 'Error',
+                message: 'unsupported operand type'
+            });
+        });
+    });
+});
+