} as unknown as MockBtwPresenter & HandlerBtwPresenter;

}

function requireFinalizedAssistantText(chatLog: MockChatLog, index = 0): string {

const call = chatLog.finalizeAssistant.mock.calls.at(index);

if (!call) {

throw new Error(`expected finalizeAssistant call ${index}`);

}

return String(call[0]);

}

describe("tui-event-handlers: handleAgentEvent", () => {

const makeState = (overrides?: Partial<TuiStateAccess>): TuiStateAccess => ({

agentDefaultId: "main",

});

expect(chatLog.finalizeAssistant).toHaveBeenCalledTimes(1);

const [rendered] = chatLog.finalizeAssistant.mock.calls[0] ?? [];

expect(String(rendered)).toContain("HTTP 401");

expect(String(rendered)).toContain("Missing scopes: model.request");

const rendered = requireFinalizedAssistantText(chatLog);

expect(rendered).toContain("HTTP 401");

expect(rendered).toContain("Missing scopes: model.request");

expect(chatLog.dropAssistant).not.toHaveBeenCalledWith("run-error-envelope");

});