electron/spec/api-browser-window-affinity-spec.js

'use strict';

const { expect } = require('chai');
const path = require('path');

const { remote } = require('electron');
const { ipcMain, BrowserWindow } = remote;
const { closeWindow } = require('./window-helpers');

describe('BrowserWindow with affinity module', () => {
  const fixtures = path.resolve(__dirname, 'fixtures');
  const myAffinityName = 'myAffinity';
  const myAffinityNameUpper = 'MYAFFINITY';
  const anotherAffinityName = 'anotherAffinity';

  async function createWindowWithWebPrefs (webPrefs) {
    const w = new BrowserWindow({
      show: false,
      width: 400,
      height: 400,
      webPreferences: webPrefs || {}
    });
    await w.loadFile(path.join(fixtures, 'api', 'blank.html'));
    return w;
  }

  function testAffinityProcessIds (name, webPreferences = {}) {
    describe(name, () => {
      let mAffinityWindow;
      before(async () => {
        mAffinityWindow = await createWindowWithWebPrefs({ affinity: myAffinityName, ...webPreferences });
      });

      after(async () => {
        await closeWindow(mAffinityWindow, { assertSingleWindow: false });
        mAffinityWindow = null;
      });

      it('should have a different process id than a default window', async () => {
        const w = await createWindowWithWebPrefs({ ...webPreferences });
        const affinityID = mAffinityWindow.webContents.getOSProcessId();
        const wcID = w.webContents.getOSProcessId();

        expect(affinityID).to.not.equal(wcID, 'Should have different OS process IDs');
        await closeWindow(w, { assertSingleWindow: false });
      });

      it(`should have a different process id than a window with a different affinity '${anotherAffinityName}'`, async () => {
        const w = await createWindowWithWebPrefs({ affinity: anotherAffinityName, ...webPreferences });
        const affinityID = mAffinityWindow.webContents.getOSProcessId();
        const wcID = w.webContents.getOSProcessId();

        expect(affinityID).to.not.equal(wcID, 'Should have different OS process IDs');
        await closeWindow(w, { assertSingleWindow: false });
      });

      it(`should have the same OS process id than a window with the same affinity '${myAffinityName}'`, async () => {
        const w = await createWindowWithWebPrefs({ affinity: myAffinityName, ...webPreferences });
        const affinityID = mAffinityWindow.webContents.getOSProcessId();
        const wcID = w.webContents.getOSProcessId();

        expect(affinityID).to.equal(wcID, 'Should have the same OS process ID');
        await closeWindow(w, { assertSingleWindow: false });
      });

      it(`should have the same OS process id than a window with an equivalent affinity '${myAffinityNameUpper}' (case insensitive)`, async () => {
        const w = await createWindowWithWebPrefs({ affinity: myAffinityNameUpper, ...webPreferences });
        const affinityID = mAffinityWindow.webContents.getOSProcessId();
        const wcID = w.webContents.getOSProcessId();

        expect(affinityID).to.equal(wcID, 'Should have the same OS process ID');
        await closeWindow(w, { assertSingleWindow: false });
      });
    });
  }

  testAffinityProcessIds(`BrowserWindow with an affinity '${myAffinityName}'`);
  testAffinityProcessIds(`BrowserWindow with an affinity '${myAffinityName}' and sandbox enabled`, { sandbox: true });
  testAffinityProcessIds(`BrowserWindow with an affinity '${myAffinityName}' and nativeWindowOpen enabled`, { nativeWindowOpen: true });

  describe(`BrowserWindow with an affinity : nodeIntegration=false`, () => {
    const preload = path.join(fixtures, 'module', 'send-later.js');
    const affinityWithNodeTrue = 'affinityWithNodeTrue';
    const affinityWithNodeFalse = 'affinityWithNodeFalse';

    function testNodeIntegration (present) {
      return new Promise((resolve, reject) => {
        ipcMain.once('answer', (event, typeofProcess, typeofBuffer) => {
          if (present) {
            expect(typeofProcess).to.not.equal('undefined');
            expect(typeofBuffer).to.not.equal('undefined');
          } else {
            expect(typeofProcess).to.equal('undefined');
            expect(typeofBuffer).to.equal('undefined');
          }
          resolve();
        });
      });
    }

    it('disables node integration when specified to false', async () => {
      const [, w] = await Promise.all([
        testNodeIntegration(false),
        createWindowWithWebPrefs({
          affinity: affinityWithNodeTrue,
          preload,
          nodeIntegration: false
        })
      ]);
      await closeWindow(w, { assertSingleWindow: false });
    });
    it('disables node integration when first window is false', async () => {
      const [, w1] = await Promise.all([
        testNodeIntegration(false),
        createWindowWithWebPrefs({
          affinity: affinityWithNodeTrue,
          preload,
          nodeIntegration: false
        })
      ]);
      const [, w2] = await Promise.all([
        testNodeIntegration(false),
        createWindowWithWebPrefs({
          affinity: affinityWithNodeTrue,
          preload,
          nodeIntegration: true
        })
      ]);
      await Promise.all([
        closeWindow(w1, { assertSingleWindow: false }),
        closeWindow(w2, { assertSingleWindow: false })
      ]);
    });

    it('enables node integration when specified to true', async () => {
      const [, w] = await Promise.all([
        testNodeIntegration(true),
        createWindowWithWebPrefs({
          affinity: affinityWithNodeFalse,
          preload,
          nodeIntegration: true
        })
      ]);
      await closeWindow(w, { assertSingleWindow: false });
    });

    it('enables node integration when first window is true', async () => {
      const [, w1] = await Promise.all([
        testNodeIntegration(true),
        createWindowWithWebPrefs({
          affinity: affinityWithNodeFalse,
          preload,
          nodeIntegration: true
        })
      ]);
      const [, w2] = await Promise.all([
        testNodeIntegration(true),
        createWindowWithWebPrefs({
          affinity: affinityWithNodeFalse,
          preload,
          nodeIntegration: false
        })
      ]);
      await Promise.all([
        closeWindow(w1, { assertSingleWindow: false }),
        closeWindow(w2, { assertSingleWindow: false })
      ]);
    });
  });
});