one/dist/esm/metro-config/withOne.test.native.js

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

import path from "path";
import fs from "fs";
import { afterAll, describe, expect, it } from "vitest";
import { withOne } from "./withOne.native.js";
function _type_of(obj) {
  "@swc/helpers - typeof";

  return obj && typeof Symbol !== "undefined" && obj.constructor === Symbol ? "symbol" : typeof obj;
}
var projectRoot = path.resolve(__dirname, "../../");
var tmpDirs = [];
function createOneFixtureProject() {
  var workspaceRoot = path.resolve(__dirname, "../../../../");
  var tmpDir = fs.mkdtempSync(path.join(workspaceRoot, ".tmp-with-one-"));
  tmpDirs.push(tmpDir);
  fs.writeFileSync(path.join(tmpDir, "package.json"), JSON.stringify({
    name: "tmp-with-one",
    private: true
  }));
  fs.writeFileSync(path.join(tmpDir, "tsconfig.json"), JSON.stringify({
    compilerOptions: {
      paths: {}
    }
  }));
  fs.mkdirSync(path.join(tmpDir, "app"));
  fs.writeFileSync(path.join(tmpDir, "app", "index.tsx"), "export default null\n");
  fs.writeFileSync(path.join(tmpDir, "vite.config.ts"), `
const defaultConfigOverrides = (config) => ({
  ...config,
  watchFolders: [
    ...(config.watchFolders || []),
    ${JSON.stringify(path.join(tmpDir, "shared"))},
  ],
  resolver: {
    ...config.resolver,
    extraNodeModules: {
      ...config.resolver?.extraNodeModules,
      'fixture-singleton': ${JSON.stringify(tmpDir)},
    },
  },
})

globalThis.__oneOptions = {
  setupFile: {
    native: './src/setup-native.ts',
  },
  native: {
    bundler: 'metro',
    bundlerOptions: {
      argv: {
        projectRoot: ${JSON.stringify(tmpDir)},
      },
      defaultConfigOverrides,
    },
  },
}
globalThis.__vxrnMetroOptions__ = {
  argv: {
    projectRoot: ${JSON.stringify(tmpDir)},
  },
  defaultConfigOverrides,
}

export default {
  root: ${JSON.stringify(tmpDir)},
}
`);
  return tmpDir;
}
afterAll(function () {
  var _iteratorNormalCompletion = true,
    _didIteratorError = false,
    _iteratorError = void 0;
  try {
    for (var _iterator = tmpDirs[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
      var tmpDir = _step.value;
      fs.rmSync(tmpDir, {
        recursive: true,
        force: true
      });
    }
  } catch (err) {
    _didIteratorError = true;
    _iteratorError = err;
  } finally {
    try {
      if (!_iteratorNormalCompletion && _iterator.return != null) {
        _iterator.return();
      }
    } finally {
      if (_didIteratorError) {
        throw _iteratorError;
      }
    }
  }
});
describe("withOne", function () {
  it("returns a config produced by the production native bundle pipeline", async function () {
    var config = await withOne(projectRoot, {
      loadViteConfig: false
    });
    expect(config).toBeTruthy();
    expect(config.resolver).toBeTruthy();
    expect(_type_of(config.resolver.resolveRequest)).toBe("function");
    expect(config.transformer).toBeTruthy();
    expect(config.transformer.babelTransformerPath).toMatch(/vite-plugin-metro.*babel-transformer/);
  });
  it("orders sourceExts so .js wins over .mjs (the proven One fix)", async function () {
    var config = await withOne(projectRoot, {
      loadViteConfig: false
    });
    var exts = config.resolver.sourceExts;
    expect(exts).toContain("mjs");
    expect(exts).toContain("js");
    expect(exts.indexOf("js")).toBeLessThan(exts.indexOf("mjs"));
  });
  it("accepts a project root as the first arg", async function () {
    var config = await withOne(projectRoot, {
      loadViteConfig: false
    });
    expect(config).toBeTruthy();
  });
  it("loads vite.config by default and applies the real native Metro options", async function () {
    var fixtureRoot = createOneFixtureProject();
    var config = await withOne(fixtureRoot);
    expect(config.resolver.extraNodeModules["fixture-singleton"]).toBe(fixtureRoot);
    expect(config.watchFolders).toContain(path.join(fixtureRoot, "shared"));
  });
  it("rewrites native default index bundle requests to the One entry", async function () {
    var config = await withOne(projectRoot, {
      loadViteConfig: false
    });
    var rewriteRequestUrl = config.server.rewriteRequestUrl;
    expect(rewriteRequestUrl("/.expo/.virtual-metro-entry.bundle?platform=ios&dev=true")).toContain("/packages/one/metro-entry.bundle?platform=ios&dev=true");
    expect(rewriteRequestUrl("/index.bundle?platform=ios&dev=true&hot=true&minify=false")).toContain("/packages/one/metro-entry.bundle?platform=ios&dev=true&hot=true&minify=false");
  });
});
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