TypeError: waitUntilWindowLoaded Cannot read property 'isLoading' of undefined

[harshendrathakur]

Getting this error wherever wait conditions are applied. Issue started when I switched to Spectron version 14 and Electron version 12.

On previous similar reported issues, it is suggested to set nodeIntegration: true which is already configured and devtool is also disabled, still getting this error.

App initialization script is like this:

  app = await new Application({
    path: path.join(process.cwd(), getExecutablePath()),
    chromeDriverArgs: [
      "verbose",
      "no-sandbox",
      "disable-gpu",
      "disable-dev-shm-usage",
    ],
    waitTimeout: 15000,
  });
  return app;
}

-

And the test case is failing at this statement `await app.client.waitUntilWindowLoaded();`

Please suggest.

![image](https://user-images.githubusercontent.com/40120518/146352161-78395353-eb91-435a-92d7-c9a311c8781e.png)

[xupea]

can you provide full code of your test case?

[harshendrathakur]

Hi @xupea ,

This is how app initialization and tests are maintained: There is a setup file where app is initialized (file is called hooks.ts) let app: Application; export async function initializeApp() { app = await new Application({ path: path.join(process.cwd(), getExecutablePath()), chromeDriverArgs: [ "verbose", "no-sandbox", "disable-gpu", "disable-dev-shm-usage", ], waitTimeout: 15000, }); return app; }

export const getApp = async () => { if (app && app.isRunning()) { return app; } else { app = await initializeApp(); await app.start(); return app; } };

In my test file it is like this:

describe("App name", async function () { let app: Application; this.timeout(10000);

before(async () => { app = await hooks.getApp(); await app.client.waitUntilWindowLoaded(15000); ----- Its failing at this step });

it("Should launch single application window", async () => { return await app.client.getWindowCount().should.eventually.equal(1); }); });

Regards Harshendra

[harshendrathakur]

Hi @xupea @zeke @durran @juliangruber , can you guys please help with this issue?

[xupea]

@harshendrathakur

you don't need to await new Application(...) operation, you had better try to run you e2e under this demo: https://github.com/electron-userland/spectron#usage

[harshendrathakur]

@xupea

Its not working even after removing the await from the new Application(...) operation. Even if I remove the await app.client.waitUntilWindowLoaded(15000) statement from the before method. Some other test will fail where any wait conditions are are applied for example waitForExists or waitUntil. So, it failing for all the waits after upgrading to spectron 14.