one/dist/esm/router/conditionalSlotPathname.test.mjs

One is a new React Framework that makes Vite serve both native and web.

import React from "react";
import TestRenderer, { act } from "react-test-renderer";
import { describe, expect, it } from "vitest";
import { usePathname } from "../hooks.mjs";
import { Root } from "../Root.mjs";
import { Slot } from "../views/Navigator.mjs";
import { Fragment, jsx, jsxs } from "react/jsx-runtime";
globalThis.IS_REACT_ACT_ENVIRONMENT = true;
globalThis.requestAnimationFrame ??= cb => setTimeout(() => cb(0), 0);
globalThis.cancelAnimationFrame ??= id => clearTimeout(id);
const routerRoot = "app";
function makeRoutes(modules) {
  globalThis["__vxrnVersion"] = (globalThis["__vxrnVersion"] ?? 0) + 1;
  const routes = {};
  for (const [file, module] of Object.entries(modules)) {
    routes[`/${routerRoot}/${file}`] = module;
  }
  return routes;
}
const slotLayout = {
  default: () => /* @__PURE__ */jsx(Slot, {})
};
const leaf = label => ({
  default: () => label
});
function routeTreeWithGate(gate) {
  const Gate = gate;
  return makeRoutes({
    "_layout.tsx": slotLayout,
    "(app)/_layout.tsx": {
      default: () => /* @__PURE__ */jsx(Gate, {
        children: /* @__PURE__ */jsx(Slot, {})
      })
    },
    "(app)/index.tsx": leaf("app-index"),
    "(app)/project/_layout.tsx": slotLayout,
    "(app)/project/[projectId]/_layout.tsx": slotLayout,
    "(app)/project/[projectId]/[sessionId]/_layout.tsx": slotLayout,
    "(app)/project/[projectId]/[sessionId]/index.tsx": leaf("session"),
    "(site)/_layout.tsx": slotLayout,
    "(site)/pricing.tsx": leaf("pricing")
  });
}
function renderAt(path, routes) {
  let renderer;
  act(() => {
    renderer = TestRenderer.create(/* @__PURE__ */jsx(Root, {
      path,
      routes,
      routerRoot,
      isClient: false
    }));
  });
  return renderer;
}
function bodyText(renderer) {
  const collect = node => typeof node === "string" ? node : Array.isArray(node) ? node.map(collect).join("") : node ? collect(node.children ?? []) : "";
  return collect(renderer.toJSON());
}
describe("a layout that renders something other than its <Slot />", () => {
  it("does not move the pathname while the URL stands still", () => {
    const pathnames = [];
    let setBlocked;
    function Probe() {
      const pathname = usePathname();
      if (pathnames[pathnames.length - 1] !== pathname) pathnames.push(pathname);
      return null;
    }
    function Gate({
      children
    }) {
      const [blocked, set] = React.useState(true);
      setBlocked = set;
      return /* @__PURE__ */jsxs(Fragment, {
        children: [/* @__PURE__ */jsx(Probe, {}), blocked ? "placeholder" : children]
      });
    }
    const renderer = renderAt("/project/p1/main", routeTreeWithGate(Gate));
    expect(bodyText(renderer)).toBe("placeholder");
    act(() => setBlocked(false));
    expect(bodyText(renderer)).toBe("session");
    act(() => setBlocked(true));
    expect(bodyText(renderer)).toBe("placeholder");
    act(() => setBlocked(false));
    expect(pathnames).toEqual(["/project/p1/main"]);
  });
  it("settles when the gate itself reads the pathname", async () => {
    let renders = 0;
    let requestBlock;
    function Gate({
      children
    }) {
      const pathname = usePathname();
      const [blockRequested, setBlockRequested] = React.useState(false);
      requestBlock = () => setBlockRequested(true);
      renders++;
      if (renders > 100) {
        throw new Error(`gate rendered ${renders} times without settling`);
      }
      const blocked = blockRequested && pathname.startsWith("/project/");
      return /* @__PURE__ */jsx(Fragment, {
        children: blocked ? "blocked" : children
      });
    }
    const renderer = renderAt("/project/p1/main", routeTreeWithGate(Gate));
    await act(async () => {});
    expect(bodyText(renderer)).toBe("session");
    await act(async () => requestBlock());
    await act(async () => {});
    expect(bodyText(renderer)).toBe("blocked");
    expect(renders).toBeLessThan(20);
  });
});
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