import { beforeEach, describe, expect, it, vi } from "vite-plus/test";import { PROVIDER_SEND_TURN_MAX_ATTACHMENTS } from "@t3tools/contracts"; const missingFileCause = new Error("missing file");const files = new Map<string, { base64: string; deleted: boolean }>(); vi.mock("expo-file-system", () => ({  File: class {    readonly uri: string;     constructor(uri: string) {      this.uri = uri;    }     get exists(): boolean {      return files.has(this.uri) && files.get(this.uri)?.deleted === false;    }     async base64(): Promise<string> {      const entry = files.get(this.uri);      if (!entry || entry.deleted) {        throw missingFileCause;      }      return entry.base64;    }     delete(): void {      const entry = files.get(this.uri);      if (entry) {        entry.deleted = true;      }    }  },})); vi.mock("./uuid", () => ({  uuidv4: () => "attachment-id",})); import { convertPastedImagesToAttachments, isOwnedPastedImageUri } from "./composerImages"; describe("native pasted image cleanup", () => {  beforeEach(() => {    files.clear();  });   it("recognizes only files created in the native composer paste directory", () => {    expect(      isOwnedPastedImageUri(        "file:///private/var/mobile/Containers/Data/Application/app/tmp/t3-composer-paste/id.png",      ),    ).toBe(true);    expect(isOwnedPastedImageUri("file:///private/var/mobile/photos/id.png")).toBe(false);    expect(isOwnedPastedImageUri("https://example.com/t3-composer-paste/id.png")).toBe(false);  });   it("converts owned files to data-backed previews and deletes the source", async () => {    const uri =      "file:///private/var/mobile/Containers/Data/Application/app/tmp/t3-composer-paste/id.png";    files.set(uri, { base64: "aGVsbG8=", deleted: false });     const attachments = await convertPastedImagesToAttachments({      uris: [uri],      existingCount: 0,    });     expect(attachments).toEqual([      expect.objectContaining({        dataUrl: "data:image/png;base64,aGVsbG8=",        previewUri: "data:image/png;base64,aGVsbG8=",      }),    ]);    expect(files.get(uri)?.deleted).toBe(true);  });   it("deletes rejected and overflow owned files without deleting user-owned files", async () => {    const rejected =      "file:///private/var/mobile/Containers/Data/Application/app/tmp/t3-composer-paste/bad.png";    const overflow =      "file:///private/var/mobile/Containers/Data/Application/app/tmp/t3-composer-paste/overflow.png";    const userOwned = "file:///private/var/mobile/photos/library.png";    files.set(rejected, { base64: "", deleted: false });    files.set(overflow, { base64: "aGVsbG8=", deleted: false });    files.set(userOwned, { base64: "aGVsbG8=", deleted: false });     await convertPastedImagesToAttachments({      uris: [rejected, overflow, userOwned],      existingCount: PROVIDER_SEND_TURN_MAX_ATTACHMENTS - 1,    });     expect(files.get(rejected)?.deleted).toBe(true);    expect(files.get(overflow)?.deleted).toBe(true);    expect(files.get(userOwned)?.deleted).toBe(false);  });   it("reports structured context when reading a pasted image fails", async () => {    const uri = "file:///private/var/mobile/photos/signed-secret-token/missing.png?token=private";    const warn = vi.spyOn(console, "warn").mockImplementation(() => undefined);     await expect(      convertPastedImagesToAttachments({ uris: [uri], existingCount: 0 }),    ).resolves.toEqual([]);    expect(warn).toHaveBeenCalledWith(      "[composer-images] failed to read pasted image",      expect.objectContaining({        _tag: "ComposerImageOperationError",        operation: "read-pasted-image",        uriLength: uri.length,        uriProtocol: "file:",        cause: missingFileCause,        message: `Composer image operation read-pasted-image failed for a file: URI (length ${uri.length}).`,      }),    );    const error = warn.mock.calls[0]?.[1];    expect(error).not.toHaveProperty("uri");    expect(String(error)).not.toContain("signed-secret-token");    expect(String(error)).not.toContain("token=private");     warn.mockRestore();  });});