import { beforeEach, describe, expect, it, vi } from "vite-plus/test"; const mocks = vi.hoisted(() => ({  retain: vi.fn(),  share: vi.fn(),  exists: vi.fn(),})); vi.mock("../state/use-composer-drafts", () => ({  retainComposerAttachmentFileForPreview: mocks.retain,}));vi.mock("./attachmentDownload", () => ({ shareLocalAttachment: mocks.share }));vi.mock("expo-file-system", () => ({  File: class {    constructor(readonly uri: string) {}    get exists(): boolean {      return mocks.exists(this.uri);    }  },  Paths: {    document: {      uri: "file:///var/mobile/Containers/Data/Application/22222222-2222-4222-8222-222222222222/Documents/",    },  },})); import { loadLocalAttachmentPreview } from "./localAttachmentPreview"; const attachment = {  type: "file" as const,  id: "draft-video",  name: "clip.mov",  mimeType: "video/quicktime",  sizeBytes: 12,  fileUri:    "file:///var/mobile/Containers/Data/Application/11111111-1111-4111-8111-111111111111/Documents/t3-composer-attachments/33333333-3333-4333-8333-333333333333-clip.mov",}; beforeEach(() => {  mocks.retain.mockReset();  mocks.share.mockReset();  mocks.exists.mockReset();  mocks.retain.mockImplementation(() => vi.fn());  mocks.exists.mockReturnValue(true);  mocks.share.mockResolvedValue(undefined);}); describe("loadLocalAttachmentPreview", () => {  it("retains and shares a PDF with its original filename and type", async () => {    const pdf = { ...attachment, name: "report.pdf", mimeType: "application/pdf" };    const preview = await loadLocalAttachmentPreview(pdf, new AbortController().signal);    await preview!.share(new AbortController().signal);    expect(mocks.share).toHaveBeenCalledWith(      expect.objectContaining({        attachment: { name: "report.pdf", mimeType: "application/pdf" },      }),    );    expect(mocks.retain.mock.results[0]!.value).not.toHaveBeenCalled();    preview!.dispose();    expect(mocks.retain.mock.results[0]!.value).toHaveBeenCalledTimes(1);  });  it("resolves the current iOS container and releases its playback lease once", async () => {    const preview = await loadLocalAttachmentPreview(attachment, new AbortController().signal);    expect(preview?.uri).toContain("/22222222-2222-4222-8222-222222222222/Documents/");    expect(mocks.retain).toHaveBeenCalledWith(attachment);    const release = mocks.retain.mock.results[0]!.value;    expect(release).not.toHaveBeenCalled();    preview?.dispose();    preview?.dispose();    expect(release).toHaveBeenCalledTimes(1);  });   it.each([undefined, "share-button"])(    "keeps a separate share lease after playback closes (source: %s)",    async (sourceIdentifier) => {      const shared = Promise.withResolvers<void>();      mocks.share.mockReturnValue(shared.promise);      const preview = await loadLocalAttachmentPreview(attachment, new AbortController().signal);      const share = preview!.share(new AbortController().signal, sourceIdentifier);      expect(mocks.retain).toHaveBeenCalledTimes(2);      const releasePlayback = mocks.retain.mock.results[0]!.value;      const releaseShare = mocks.retain.mock.results[1]!.value;      preview!.dispose();      expect(releasePlayback).toHaveBeenCalledTimes(1);      expect(releaseShare).not.toHaveBeenCalled();      shared.resolve();      await share;      expect(releaseShare).toHaveBeenCalledTimes(1);    },  );   it("releases a failed share while keeping playback retained", async () => {    mocks.share.mockRejectedValue(new Error("Sharing unavailable"));    const preview = await loadLocalAttachmentPreview(attachment, new AbortController().signal);    await expect(preview!.share(new AbortController().signal)).rejects.toThrow(      "Sharing unavailable",    );    expect(mocks.retain.mock.results[1]!.value).toHaveBeenCalledTimes(1);    expect(mocks.retain.mock.results[0]!.value).not.toHaveBeenCalled();    preview!.dispose();  });   it("releases a load canceled during native module loading", async () => {    const controller = new AbortController();    const loading = loadLocalAttachmentPreview(attachment, controller.signal);    controller.abort();    await expect(loading).resolves.toBeNull();    expect(mocks.retain.mock.results[0]!.value).toHaveBeenCalledTimes(1);    expect(mocks.exists).not.toHaveBeenCalled();  });   it("reports missing files and releases their lease", async () => {    mocks.exists.mockReturnValue(false);    await expect(      loadLocalAttachmentPreview(attachment, new AbortController().signal),    ).rejects.toThrow("This attachment is no longer available. Attach the file again.");    expect(mocks.retain.mock.results[0]!.value).toHaveBeenCalledTimes(1);  });   it("does not start sharing a disposed preview", async () => {    const preview = await loadLocalAttachmentPreview(attachment, new AbortController().signal);    preview!.dispose();    await preview!.share(new AbortController().signal);    expect(mocks.share).not.toHaveBeenCalled();    expect(mocks.retain).toHaveBeenCalledTimes(1);  });});