import { ThreadId } from "@t3tools/contracts";import { describe, expect, it } from "vitest"; import { buildExpiredTerminalContextToastCopy, deriveComposerSendState } from "./ChatView.logic"; describe("deriveComposerSendState", () => {  it("treats expired terminal pills as non-sendable content", () => {    const state = deriveComposerSendState({      prompt: "\uFFFC",      imageCount: 0,      terminalContexts: [        {          id: "ctx-expired",          threadId: ThreadId.makeUnsafe("thread-1"),          terminalId: "default",          terminalLabel: "Terminal 1",          lineStart: 4,          lineEnd: 4,          text: "",          createdAt: "2026-03-17T12:52:29.000Z",        },      ],    });     expect(state.trimmedPrompt).toBe("");    expect(state.sendableTerminalContexts).toEqual([]);    expect(state.expiredTerminalContextCount).toBe(1);    expect(state.hasSendableContent).toBe(false);  });   it("keeps text sendable while excluding expired terminal pills", () => {    const state = deriveComposerSendState({      prompt: `yoo \uFFFC waddup`,      imageCount: 0,      terminalContexts: [        {          id: "ctx-expired",          threadId: ThreadId.makeUnsafe("thread-1"),          terminalId: "default",          terminalLabel: "Terminal 1",          lineStart: 4,          lineEnd: 4,          text: "",          createdAt: "2026-03-17T12:52:29.000Z",        },      ],    });     expect(state.trimmedPrompt).toBe("yoo  waddup");    expect(state.expiredTerminalContextCount).toBe(1);    expect(state.hasSendableContent).toBe(true);  });}); describe("buildExpiredTerminalContextToastCopy", () => {  it("formats clear empty-state guidance", () => {    expect(buildExpiredTerminalContextToastCopy(1, "empty")).toEqual({      title: "Expired terminal context won't be sent",      description: "Remove it or re-add it to include terminal output.",    });  });   it("formats omission guidance for sent messages", () => {    expect(buildExpiredTerminalContextToastCopy(2, "omitted")).toEqual({      title: "Expired terminal contexts omitted from message",      description: "Re-add it if you want that terminal output included.",    });  });});