MEDIUM - Ho to Test Electron Apps - 06

base.test.ts

import { _electron as electron } from "playwright";
import { test, expect } from "@playwright/test";

test("Launch electron app", async () => {
  const electronApp = await electron.launch({ args: ["."] });

  const windowState: {
    isVisible: boolean;
    isDevToolsOpened: boolean;
    isCrashed: boolean;
  } = await electronApp.evaluate(async ({ BrowserWindow }) => {
    const mainWindow = BrowserWindow.getAllWindows()[0];

    const getState = () => ({
      isVisible: mainWindow.isVisible(),
      isDevToolsOpened: mainWindow.webContents.isDevToolsOpened(),
      isCrashed: mainWindow.webContents.isCrashed(),
    });

    return new Promise((resolve) => {
      if (mainWindow.isVisible()) {
        resolve(getState());
      } else {
        mainWindow.once("ready-to-show", () =>
          setTimeout(() => resolve(getState()), 0)
        );
      }
    });
  });

  expect(windowState.isVisible).toBeTruthy();
  expect(windowState.isDevToolsOpened).toBeFalsy();
  expect(windowState.isCrashed).toBeFalsy();

  await electronApp.close();
});