feat: 初始化 miot_x TypeScript 工作流构建器项目

tests/backup.test.ts

@@ -0,0 +1,27 @@
+import { describe, expect, test } from "bun:test";
+import { BACKUP_HEADER, backupStats, packBackup, readBackupFile, unpackBackup } from "../src/index.ts";
+
+const sampleBackupPath = "resources/备份2026_4_26 19_17_42.bak";
+
+describe("备份文件处理", () => {
+  test("真实备份可以解包并统计", () => {
+    const backup = readBackupFile(sampleBackupPath);
+    expect(backupStats(backup)).toEqual({
+      version: 2,
+      ruleCount: 15,
+      globalVariableCount: 25,
+      nodeCount: 267,
+    });
+  });
+
+  test("打包结果使用固定头并可往返解包", () => {
+    const backup = readBackupFile(sampleBackupPath);
+    const packed = packBackup(backup);
+    expect([...packed.subarray(0, 4)]).toEqual([...BACKUP_HEADER]);
+    expect(unpackBackup(packed)).toEqual(backup);
+  });
+
+  test("非法文件头会报错", () => {
+    expect(() => unpackBackup(new Uint8Array([0, 1, 2, 3, 4]))).toThrow("备份文件头不匹配");
+  });
+});