Function loadWrapper

dashboard/test/hermes-wrapper.test.mjs:33–99

({ scriptsByUrl })

}

async function loadWrapper({ scriptsByUrl }) {
  const source = await readFile(wrapperPath, "utf8");
  const registryCalls = [];
  const fetchJsonCalls = [];
  const authedFetchCalls = [];

  const realWindow = {
    boundProbe() {
      return this === realWindow ? "bound" : "unbound";
    },
  };

  realWindow.__HERMES_PLUGIN_SDK__ = {
    React: createReactStub(),
    fetchJSON: (url, init) => {
      fetchJsonCalls.push([url, init]);
      return Promise.resolve({ ok: true });
    },
    authedFetch: (url, init) => {
      authedFetchCalls.push([url, init]);
      return Promise.resolve({ ok: true });
    },
  };

  const registeredPlugins = new Map();
  realWindow.__HERMES_PLUGINS__ = {
    register: (name, component) => {
      registryCalls.push(name);
      registeredPlugins.set(name, component);
    },
    registerSlot: () => {},
  };

  const fetchCalls = [];
  const context = {
    window: realWindow,
    fetch: async (url) => {
      const key = String(url);
      fetchCalls.push(key);
      if (!(key in scriptsByUrl)) {
        return {
          ok: false,
          status: 404,
          text: async () => "",
        };
      }
      return {
        ok: true,
        status: 200,
        text: async () => scriptsByUrl[key],
      };
    },
    Promise,
    setTimeout,
    clearTimeout,
  };

  vm.runInNewContext(source, context, { filename: "hermes-wrapper/src/entry.js" });