feat(tools): junction.mjs 跨平台目录链接创建/检测

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-28 12:07:40 +08:00
parent e7e9406c48
commit 5ef65c0d05
2 changed files with 79 additions and 0 deletions
@@ -0,0 +1,50 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { join } from 'node:path';
+import { existsSync, readFileSync, writeFileSync } from 'node:fs';
+import { makeTempMonorepo, cleanup } from './helpers.mjs';
+import { ensureJunction, isLink } from '../lib/junction.mjs';
+
+test('ensureJunction 创建链接后可经链接读到真源文件', () => {
+  const mono = makeTempMonorepo();
+  try {
+    const link = join(mono.games, 'demo-framework');
+    const status = ensureJunction(link, mono.framework);
+    assert.equal(status, 'created');
+    assert.ok(isLink(link));
+    assert.equal(readFileSync(join(link, 'README.md'), 'utf8'), '# framework src\n');
+  } finally {
+    cleanup(mono.root);
+  }
+});
+
+test('ensureJunction 对已存在链接返回 exists 且不抛错', () => {
+  const mono = makeTempMonorepo();
+  try {
+    const link = join(mono.games, 'demo-framework');
+    ensureJunction(link, mono.framework);
+    assert.equal(ensureJunction(link, mono.framework), 'exists');
+  } finally {
+    cleanup(mono.root);
+  }
+});
+
+test('ensureJunction 目标不存在时抛错', () => {
+  const mono = makeTempMonorepo();
+  try {
+    assert.throws(() => ensureJunction(join(mono.games, 'x'), join(mono.root, 'no-such')), /target 不存在/);
+  } finally {
+    cleanup(mono.root);
+  }
+});
+
+test('ensureJunction 拒绝覆盖已存在的真实目录/文件', () => {
+  const mono = makeTempMonorepo();
+  try {
+    const link = join(mono.games, 'realfile');
+    writeFileSync(link, 'x');
+    assert.throws(() => ensureJunction(link, mono.framework), /非链接/);
+  } finally {
+    cleanup(mono.root);
+  }
+});