import { afterEach, describe, expect, it, vi } from "vite-plus/test"; import {  resolveRestingComposerControlsLayout,  resolveRestingComposerControlsNaturalWidth,} from "../composerFooterLayout";import { measureRestingComposerControls } from "./restingComposerControlsMeasurement"; function measurePicker(input: { clientWidth: number; flexGrow: string; maxWidth?: string }) {  const label = { clientWidth: input.clientWidth, scrollWidth: 160 };  const picker = {    getBoundingClientRect: () => ({ width: 52 }),    querySelector: () => label,  };  const controls = {    querySelector: (selector: string) => {      if (selector === "[data-chat-provider-model-picker]") return picker;      if (selector === "[data-resting-controls-overflow]") {        return { getBoundingClientRect: () => ({ width: 24 }) };      }      return null;    },    querySelectorAll: () => [{ getBoundingClientRect: () => ({ width: 140 }) }],  };  vi.stubGlobal("getComputedStyle", (element: unknown) => {    if (element === label) return { flexGrow: input.flexGrow };    if (element === picker) return { minWidth: "52px", maxWidth: input.maxWidth ?? "none" };    return { columnGap: "4px" };  });  return measureRestingComposerControls(controls as unknown as HTMLElement)!;} afterEach(() => vi.unstubAllGlobals()); describe("measureRestingComposerControls", () => {  it("keeps controls inline when the model label is deliberately collapsed", () => {    const measurement = measurePicker({ clientWidth: 0, flexGrow: "0" });     expect(measurement.naturalFixedWidth).toBe(52);    expect(resolveRestingComposerControlsNaturalWidth(measurement)).toBe(196);    expect(resolveRestingComposerControlsLayout({ ...measurement, hostWidth: 200 })).toEqual({      hiddenCount: 0,      visible: true,    });  });   it("recovers truncated text while the model label is flexible", () => {    const measurement = measurePicker({ clientWidth: 20, flexGrow: "1" });     expect(measurement.naturalFixedWidth).toBe(192);    expect(resolveRestingComposerControlsLayout({ ...measurement, hostWidth: 200 })).toEqual({      hiddenCount: 1,      visible: true,    });  });   it("recovers flexible text squeezed to zero instead of mistaking it for collapsed text", () => {    const measurement = measurePicker({ clientWidth: 0, flexGrow: "1" });     expect(measurement.naturalFixedWidth).toBe(212);    expect(resolveRestingComposerControlsLayout({ ...measurement, hostWidth: 200 })).toEqual({      hiddenCount: 1,      visible: true,    });  });   it("still caps recovered text at the model picker's maximum width", () => {    expect(      measurePicker({ clientWidth: 0, flexGrow: "1", maxWidth: "180px" }).naturalFixedWidth,    ).toBe(180);  });});