import {  EnvironmentId,  MessageId,  ProjectId,  ProviderInstanceId,  ThreadId,} from "@t3tools/contracts";import { serializeAssistantCitation } from "@t3tools/shared/assistantCitations";import { describe, expect, it } from "vite-plus/test"; import {  buildProjectThreadStartTurnInput,  deriveThreadTitleFromPrompt,} from "./projectThreadStartTurn"; describe("project thread title", () => {  it("keeps ordinary titles and the empty-prompt fallback", () => {    expect(deriveThreadTitleFromPrompt("  Fix\n the parser  ")).toBe("Fix the parser");    expect(deriveThreadTitleFromPrompt(" \n ")).toBe("New thread");  });   it("derives attachment-only titles from prepared image metadata", () => {    const uploadedAttachments = [      {        type: "image" as const,        id: "prepared-photo",        name: "photo.png",        mimeType: "image/png",        sizeBytes: 3,      },    ];    const input = buildProjectThreadStartTurnInput({      projectId: ProjectId.make("project"),      projectCwd: "/workspace",      threadId: "image-thread",      commandId: "image-command",      messageId: "image-message",      createdAt: "2026-09-04T00:00:00Z",      text: "",      uploadedAttachments,      modelSelection: { instanceId: ProviderInstanceId.make("codex"), model: "gpt-5.6-sol" },      runtimeMode: "full-access",      interactionMode: "default",      workspaceMode: "local",      branch: null,      worktreePath: null,      startFromOrigin: false,      worktreeBranchName: "unused",    });     expect(input.titleSeed).toBe("Image: photo.png");    expect(input.bootstrap.createThread.title).toBe(input.titleSeed);    expect(input.message.attachments).toEqual(uploadedAttachments);  });   it.each([    {      comment: undefined,      title: "Keep `cache[key]` & <parser> shared. Retry!",    },    {      comment: 'Why "shared"?',      title: "Keep `cache[key]` & <parser> shared. Retry! Commen...",    },  ])("uses readable titles and intact links with comment $comment", ({ comment, title }) => {    const quoteText = "Keep `cache[key]` & <parser> shared.\n  Retry!";    const text = serializeAssistantCitation({      version: 1,      environmentId: EnvironmentId.make("source-environment"),      threadId: ThreadId.make("source-thread"),      messageId: MessageId.make("source-message"),      text: quoteText,      ...(comment === undefined ? {} : { comment }),      start: 0,      end: quoteText.length,      prefix: "",      suffix: "",    });    const input = buildProjectThreadStartTurnInput({      projectId: ProjectId.make("project"),      projectCwd: "/workspace",      threadId: "new-thread",      commandId: "command",      messageId: "message",      createdAt: "2026-09-01T00:00:00Z",      text,      uploadedAttachments: [],      modelSelection: { instanceId: ProviderInstanceId.make("codex"), model: "gpt-5.6-sol" },      runtimeMode: "full-access",      interactionMode: "default",      workspaceMode: "local",      branch: null,      worktreePath: null,      startFromOrigin: false,      worktreeBranchName: "unused",    });     expect(input.titleSeed).toBe(title);    expect(input.bootstrap.createThread.title).toBe(input.titleSeed);    expect(input.message.text).toBe(text);  });});