test: 新增测试代码文件

src/utils/__tests__/path.test.ts

@@ -1,5 +1,9 @@
 import { describe, expect, test } from "bun:test";
-import { containsPathTraversal, normalizePathForConfigKey } from "../path";
+import {
+  containsPathTraversal,
+  expandPath,
+  normalizePathForConfigKey,
+} from "../path";
 
 // ─── containsPathTraversal ──────────────────────────────────────────────
 
@@ -43,6 +47,51 @@ describe("containsPathTraversal", () => {
   test("returns false for dotdot in filename without separator", () => {
     expect(containsPathTraversal("foo..bar")).toBe(false);
   });
+
+  test("detects backslash traversal foo\\..\\bar", () => {
+    expect(containsPathTraversal("foo\\..\\bar")).toBe(true);
+  });
+
+  test("detects .. at end of absolute path", () => {
+    expect(containsPathTraversal("/path/to/..")).toBe(true);
+  });
+});
+
+// ─── expandPath ─────────────────────────────────────────────────────────
+
+describe("expandPath", () => {
+  test("expands ~/ to home directory", () => {
+    const result = expandPath("~/Documents");
+    expect(result).not.toContain("~");
+    expect(result).toContain("Documents");
+  });
+
+  test("expands bare ~ to home directory", () => {
+    const result = expandPath("~");
+    expect(result).not.toContain("~");
+    // Should equal home directory
+    const { homedir } = require("os");
+    expect(result).toBe(homedir());
+  });
+
+  test("passes absolute paths through normalized", () => {
+    expect(expandPath("/usr/local/bin")).toBe("/usr/local/bin");
+  });
+
+  test("resolves relative path against baseDir", () => {
+    expect(expandPath("src", "/project")).toBe("/project/src");
+  });
+
+  test("returns baseDir for empty string", () => {
+    expect(expandPath("", "/project")).toBe("/project");
+  });
+
+  test("returns cwd-based path for empty string without baseDir", () => {
+    const result = expandPath("");
+    // Should be a valid absolute path (cwd normalized)
+    const { isAbsolute } = require("path");
+    expect(isAbsolute(result)).toBe(true);
+  });
 });
 
 // ─── normalizePathForConfigKey ──────────────────────────────────────────
@@ -69,4 +118,14 @@ describe("normalizePathForConfigKey", () => {
     const result = normalizePathForConfigKey("foo\\bar\\baz");
     expect(result).toBe("foo/bar/baz");
   });
+
+  test("normalizes mixed separators foo/bar\\baz", () => {
+    const result = normalizePathForConfigKey("foo/bar\\baz");
+    expect(result).toBe("foo/bar/baz");
+  });
+
+  test("normalizes redundant separators foo//bar", () => {
+    const result = normalizePathForConfigKey("foo//bar");
+    expect(result).toBe("foo/bar");
+  });
 });