test(test 目錄): 將 12 個單元測試移至 app/test 並更新 npm test 指令

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/test/log.test.js

@@ -0,0 +1,78 @@
+import { describe, it, afterEach, mock } from 'node:test';
+import assert from 'node:assert/strict';
+import { section, step, line, input, output, result, ok, warn, error } from '../log.js';
+
+afterEach(() => mock.restoreAll());
+
+describe('log helpers', () => {
+  it('formats section and step messages', () => {
+    const calls = [];
+    mock.method(console, 'log', (...args) => {
+      calls.push(args.join(' '));
+    });
+
+    section('Pipeline');
+    step('Step1', 'Start');
+
+    assert.deepEqual(calls, [
+      '\n=== Pipeline ===',
+      '\n[Step1] Start',
+    ]);
+  });
+
+  it('formats line and ok messages with console.log', () => {
+    const calls = [];
+    mock.method(console, 'log', (...args) => {
+      calls.push(args.join(' '));
+    });
+
+    line('hello');
+    ok('done');
+
+    assert.deepEqual(calls, [
+      '  - hello',
+      '  ✓ done',
+    ]);
+  });
+
+  it('formats input/output and pass/fail result messages', () => {
+    const calls = [];
+    mock.method(console, 'log', (...args) => {
+      calls.push(args.join(' '));
+    });
+
+    input('5 筆');
+    output('3 筆');
+    result(true, '通過');
+    result(false, '未通過');
+
+    assert.deepEqual(calls, [
+      '  ← 輸入：5 筆',
+      '  → 輸出：3 筆',
+      '  ✅ 成功：通過',
+      '  ❌ 失敗：未通過',
+    ]);
+  });
+
+  it('formats warn messages with console.warn', () => {
+    const calls = [];
+    mock.method(console, 'warn', (...args) => {
+      calls.push(args.join(' '));
+    });
+
+    warn('careful');
+
+    assert.deepEqual(calls, ['  ! careful']);
+  });
+
+  it('formats error messages with console.error', () => {
+    const calls = [];
+    mock.method(console, 'error', (...args) => {
+      calls.push(args.join(' '));
+    });
+
+    error('boom');
+
+    assert.deepEqual(calls, ['  x boom']);
+  });
+});