import type { ComponentType, Dispatch, ReactElement, SetStateAction } from "react";import { beforeEach, describe, expect, it, vi } from "vite-plus/test";import type { EnvironmentId } from "@t3tools/contracts"; const testState = vi.hoisted(() => ({  faviconUrl: "https://environment.test/api/assets/token-a/v1-20-favicon.svg",  lastResource: null as unknown,})); const hooks = vi.hoisted(() => {  let cursor = 0;  let slots: unknown[] = [];  const nextIndex = () => cursor++;   return {    beginRender() {      cursor = 0;    },    reset() {      cursor = 0;      slots = [];    },    useMemoCache(size: number): unknown[] {      const index = nextIndex();      if (!slots[index]) {        slots[index] = Array.from({ length: size }, () => Symbol.for("react.memo_cache_sentinel"));      }      return slots[index] as unknown[];    },    useState<T>(initialValue: T | (() => T)): [T, Dispatch<SetStateAction<T>>] {      const index = nextIndex();      if (index >= slots.length) {        slots[index] =          typeof initialValue === "function" ? (initialValue as () => T)() : initialValue;      }      const setValue: Dispatch<SetStateAction<T>> = (nextValue) => {        const previous = slots[index] as T;        slots[index] =          typeof nextValue === "function" ? (nextValue as (value: T) => T)(previous) : nextValue;      };      return [slots[index] as T, setValue];    },  };}); vi.mock("react", async (importOriginal) => {  const actual = await importOriginal<typeof import("react")>();  return {    ...actual,    useState: hooks.useState,  };}); vi.mock("react/compiler-runtime", () => ({ c: hooks.useMemoCache }));vi.mock("../assets/assetUrls", () => ({  useAssetUrlState: (_environmentId: unknown, resource: unknown) => {    testState.lastResource = resource;    return { _tag: "Success", url: testState.faviconUrl };  },})); import { ProjectFavicon } from "./ProjectFavicon"; type ProjectFaviconImageProps = {  readonly cacheKey: string;  readonly src: string;  readonly className?: string | undefined;  readonly fallbackIcon: ComponentType<{ className?: string }>;}; type ImageElement = ReactElement<{  readonly src: string;  readonly onLoad?: () => void;  readonly onError?: () => void;}>; type ProjectFaviconImageElement = ReactElement<{  readonly children: [ReactElement | null, ImageElement | null, ImageElement | null];}>; function resolveImageComponent(): {  readonly Component: (props: ProjectFaviconImageProps) => ProjectFaviconImageElement;  readonly props: ProjectFaviconImageProps;} {  hooks.beginRender();  const element = ProjectFavicon({    environmentId: "environment-test" as EnvironmentId,    cwd: "/workspace-test",  }) as ReactElement<ProjectFaviconImageProps>;  hooks.reset();   return {    Component: element.type as (props: ProjectFaviconImageProps) => ProjectFaviconImageElement,    props: element.props,  };} function renderImage(  Component: (props: ProjectFaviconImageProps) => ProjectFaviconImageElement,  props: ProjectFaviconImageProps,): ProjectFaviconImageElement {  hooks.beginRender();  return Component(props);} describe("ProjectFavicon", () => {  beforeEach(() => {    hooks.reset();  });   it("falls back when the displayed favicon fails without discarding a valid older image early", () => {    const { Component, props } = resolveImageComponent();    const initialLoadingImage = renderImage(Component, props).props.children[2];    initialLoadingImage?.props.onLoad?.();     const refreshedProps = {      ...props,      src: "https://environment.test/api/assets/token-b/v1-20-favicon.svg",    };    const refreshing = renderImage(Component, refreshedProps).props.children;    expect(refreshing[1]?.props.src).toBe(props.src);    refreshing[2]?.props.onError?.();     const afterRefreshError = renderImage(Component, refreshedProps).props.children;    expect(afterRefreshError[1]?.props.src).toBe(props.src);    afterRefreshError[1]?.props.onError?.();     const afterDisplayedError = renderImage(Component, refreshedProps).props.children;    expect(afterDisplayedError[0]).not.toBeNull();    expect(afterDisplayedError[1]).toBeNull();  });   it("requests a saved favicon path when one is set", () => {    ProjectFavicon({      environmentId: "environment-test" as EnvironmentId,      cwd: "/workspace-test",      faviconPath: "brand/icon.svg",    });     expect(testState.lastResource).toEqual({      _tag: "project-favicon",      cwd: "/workspace-test",      path: "brand/icon.svg",    });  });});