// @effect-diagnostics nodeBuiltinImport:off - Regression coverage compares the sidebar component with its width contract.import * as NodeFS from "node:fs"; import { describe, expect, it } from "vite-plus/test"; import {  resolveInitialThreadSidebarWidth,  THREAD_MAIN_CONTENT_MIN_WIDTH,  THREAD_SIDEBAR_DEFAULT_WIDTH,  THREAD_SIDEBAR_MIN_WIDTH,} from "./threadSidebarWidth"; describe("thread sidebar width", () => {  it("uses the default width when no preference is stored", () => {    expect(resolveInitialThreadSidebarWidth(null, 1200)).toBe(THREAD_SIDEBAR_DEFAULT_WIDTH);  });   it("uses a stored width in the initial render", () => {    expect(resolveInitialThreadSidebarWidth(360, 1200)).toBe(360);  });   it("clamps a stored width to the sidebar minimum", () => {    expect(resolveInitialThreadSidebarWidth(120, 1200)).toBe(THREAD_SIDEBAR_MIN_WIDTH);  });   it("leaves enough room for the main content on a smaller window", () => {    const viewportWidth = 1000;     expect(resolveInitialThreadSidebarWidth(900, viewportWidth)).toBe(      viewportWidth - THREAD_MAIN_CONTENT_MIN_WIDTH,    );  });   it("keeps the sidebar minimum when the whole layout is narrower than its minimums", () => {    expect(resolveInitialThreadSidebarWidth(900, 700)).toBe(THREAD_SIDEBAR_MIN_WIDTH);  });   it("shows the desktop wordmark across the sidebar's full legal width range", () => {    const sidebarSource = NodeFS.readFileSync(      new URL("./sidebar/SidebarChrome.tsx", import.meta.url),      "utf8",    );     expect(sidebarSource).toContain("hidden h-7 w-fit min-w-0 shrink-0 items-center gap-1");    expect(sidebarSource).toContain("md:flex");    expect(THREAD_SIDEBAR_MIN_WIDTH).toBe(13 * 16);  });});