import { describe, expect, it } from "vite-plus/test"; import {  beginProjectFaviconRequest,  createProjectFaviconRequest,  hasLoadedProjectFavicon,  markProjectFaviconFailed,  markProjectFaviconLoaded,} from "./projectFaviconCache"; describe("project favicon cache", () => {  it("ignores callbacks from a superseded URL", () => {    const cacheKey = "environment-1:/workspace:v1-favicon.svg";    const expiredUrl = "https://environment.example/api/assets/expired/v1-favicon.svg";    const refreshedUrl = "https://environment.example/api/assets/refreshed/v1-favicon.svg";     const expiredRequest = createProjectFaviconRequest(cacheKey, expiredUrl);    const endExpiredRequest = beginProjectFaviconRequest(expiredRequest);    markProjectFaviconLoaded(expiredRequest);    const refreshedRequest = createProjectFaviconRequest(cacheKey, refreshedUrl);    const endRefreshedRequest = beginProjectFaviconRequest(refreshedRequest);     expect(markProjectFaviconLoaded(expiredRequest)).toBe(false);    expect(markProjectFaviconFailed(expiredRequest)).toBe(false);    expect(hasLoadedProjectFavicon(cacheKey)).toBe(true);    expect(markProjectFaviconFailed(refreshedRequest)).toBe(true);    expect(hasLoadedProjectFavicon(cacheKey)).toBe(false);     endRefreshedRequest();    endExpiredRequest();  });   it("evicts the URL that actually failed", () => {    const cacheKey = "environment-1:/workspace:v2-favicon.svg";    const faviconUrl = "https://environment.example/api/assets/current/v2-favicon.svg";    const request = createProjectFaviconRequest(cacheKey, faviconUrl);    const endRequest = beginProjectFaviconRequest(request);     markProjectFaviconLoaded(request);     expect(markProjectFaviconFailed(request)).toBe(true);    expect(hasLoadedProjectFavicon(cacheKey)).toBe(false);     endRequest();  });   it("does not supersede a request until the next request begins", () => {    const cacheKey = "environment-1:/workspace:v3-favicon.svg";    const committedUrl = "https://environment.example/api/assets/current/v3-favicon.svg";    const abandonedUrl = "https://environment.example/api/assets/abandoned/v3-favicon.svg";    const committedRequest = createProjectFaviconRequest(cacheKey, committedUrl);    const endCommittedRequest = beginProjectFaviconRequest(committedRequest);     createProjectFaviconRequest(cacheKey, abandonedUrl);     expect(markProjectFaviconLoaded(committedRequest)).toBe(true);    expect(hasLoadedProjectFavicon(cacheKey)).toBe(true);     endCommittedRequest();  });   it("requires a cache key before creating a URL-bearing request", () => {    const firstUrl = "https://environment.example/api/assets/first/favicon.svg";    const secondUrl = "https://environment.example/api/assets/second/favicon.svg";     expect(createProjectFaviconRequest(null, firstUrl)).toBeNull();    expect(createProjectFaviconRequest(null, secondUrl)).toBeNull();  });   it("restores the remaining active URL when a newer request ends", () => {    const cacheKey = "environment-1:/workspace:v4-favicon.svg";    const firstRequest = createProjectFaviconRequest(      cacheKey,      "https://environment.example/api/assets/first/v4-favicon.svg",    );    const secondRequest = createProjectFaviconRequest(      cacheKey,      "https://environment.example/api/assets/second/v4-favicon.svg",    );    const endFirstRequest = beginProjectFaviconRequest(firstRequest);    const endSecondRequest = beginProjectFaviconRequest(secondRequest);     expect(markProjectFaviconLoaded(firstRequest)).toBe(false);    endSecondRequest();    expect(markProjectFaviconLoaded(firstRequest)).toBe(true);    endFirstRequest();    expect(markProjectFaviconLoaded(firstRequest)).toBe(false);  });   it("bounds remembered loaded revisions", () => {    const firstCacheKey = "environment-1:/workspace:revision-0";    let lastCacheKey = firstCacheKey;     for (let revision = 0; revision < 300; revision++) {      lastCacheKey = `environment-1:/workspace:revision-${revision}`;      const request = createProjectFaviconRequest(        lastCacheKey,        `https://environment.example/api/assets/revision-${revision}/favicon.svg`,      );      const endRequest = beginProjectFaviconRequest(request);      markProjectFaviconLoaded(request);      endRequest();    }     expect(hasLoadedProjectFavicon(firstCacheKey)).toBe(false);    expect(hasLoadedProjectFavicon(lastCacheKey)).toBe(true);  });});