Merge pull request #350 from KentYang123/lab3

[LAB3] 512558014

Author: AlaRduTP

lab3/main_test.js

@@ -2,4 +2,55 @@ const { describe, it } = require('node:test');
 const assert = require('assert');
 const { Calculator } = require('./main');
 
-// TODO: write your tests here
+// 定義測試套件，對 Calculator 類進行測試
+describe('Calculator', () => {
+    // 對 exp 方法進行測試
+    describe('exp', () => {
+       // 測試用例
+        it('should return the correct result for valid input', () => {
+            const calculator = new Calculator();
+            assert.strictEqual(calculator.exp(0), 1);
+            assert.strictEqual(calculator.exp(1), Math.exp(1));
+            assert.strictEqual(calculator.exp(2), Math.exp(2));
+            assert.strictEqual(calculator.exp(-1), Math.exp(-1));
+        });
+
+        it('should throw an error for invalid input', () => {
+            const calculator = new Calculator();
+            assert.throws(() => calculator.exp('abc'), Error);
+            assert.throws(() => calculator.exp(NaN), Error);
+            assert.throws(() => calculator.exp(Infinity), Error);
+        });
+
+        it('should throw an error for overflow', () => {
+            const calculator = new Calculator();
+            assert.throws(() => calculator.exp(1000), Error);
+        
+        });
+    });
+    // 對 log 方法進行測試
+    describe('log', () => {
+        // 測試用例
+        it('should return the correct result for valid input', () => {
+            const calculator = new Calculator();
+            assert.strictEqual(calculator.log(1), 0);
+            assert.strictEqual(calculator.log(Math.exp(1)), 1);
+            assert.strictEqual(calculator.log(Math.exp(2)), 2);
+            assert.strictEqual(calculator.log(Math.exp(-1)), -1);
+        });
+
+        it('should throw an error for invalid input', () => {
+            const calculator = new Calculator();
+            assert.throws(() => calculator.log('abc'), Error);
+            assert.throws(() => calculator.log(NaN), Error);
+            assert.throws(() => calculator.log(-1), Error);
+            assert.throws(() => calculator.log(0), Error);
+        });
+
+        it('should throw an error for math domain errors', () => {
+            const calculator = new Calculator();
+            assert.throws(() => calculator.log(-1), Error);
+            assert.throws(() => calculator.log(0), Error);
+        });
+    });
+});