feat(web): authed blob image pipeline with LRU, cover card, dir grouping

2026-09-07 15:36:19 +08:00
parent b231b62720
commit 63b41f333e
5 changed files with 145 additions and 0 deletions
@@ -0,0 +1,32 @@
+import { afterEach, beforeEach, expect, it, vi } from "vitest";
+import { setToken } from "../src/api/client";
+import { __resetImageCache, fetchObjectUrl } from "../src/lib/authImage";
+
+beforeEach(() => {
+  __resetImageCache();
+  setToken("T");
+  (URL as any).createObjectURL = vi.fn(() => "blob:gen");
+});
+afterEach(() => vi.unstubAllGlobals());
+
+it("blob → objectURL;同 URL 只发一次请求", async () => {
+  const f = vi.fn(async (_url: any, init: any) => {
+    expect(init.headers.Authorization).toBe("Bearer T");
+    return new Response(new Blob(["img"]), { status: 200 });
+  });
+  vi.stubGlobal("fetch", f);
+  expect(await fetchObjectUrl("/api/books/1/cover?v=h")).toBe("blob:gen");
+  expect(await fetchObjectUrl("/api/books/1/cover?v=h")).toBe("blob:gen");
+  expect(f).toHaveBeenCalledTimes(1);
+});
+
+it("失败不入缓存,重试重新请求", async () => {
+  let n = 0;
+  vi.stubGlobal("fetch", async () => {
+    n++;
+    return n === 1 ? new Response("x", { status: 500 }) : new Response(new Blob(["img"]), { status: 200 });
+  });
+  await expect(fetchObjectUrl("/api/books/2/pages/0?v=h")).rejects.toThrow();
+  expect(await fetchObjectUrl("/api/books/2/pages/0?v=h")).toBe("blob:gen");
+  expect(n).toBe(2);
+});