Open multiple browser windows in 1 testcafe test - testing

Question

I'm trying to write a test with testcafe that could generate conflicts in a document. For this I would need to be logged in with 2 different users in 2 different browser sessions (One being an incognito window) and open up the documents editor with each user and edit the same text. It is important that both users are in the editor when editing the content in order to generate conflicts.
Is there a way to open multiple browser sessions in 1 testcafe test? Or an alternative solution for manipulating a doc with the 2 different user roles at the same time?
How the test would look like:
Open browser window
Log in with User1
Navigate to document editor (Tinymce)
Open incognito browser (without closing the 1st window)
Log in with User2
Navigate to document editor
With User1 edit "text" to "purple" then save
With User2 edit "text" to "gold" then save
Assert that conflict happens

Answer 1

I made an example for you of how you can run multiple TestCafe tests and synchronize them using promises: https://github.com/DevExpress/testcafe-example-multiuser-scenario
Clone this repository: git clone https://github.com/DevExpress/testcafe-example-multiuser-scenario.git
install the packages: npm install and run the tests with npm run test.
If you use this approach, your tests will look like this:
test('Some test', async t => {
await stage('First stage');
//do somthing
await stage('Second stage');
//do anything else
stage('End');
});
And the script that will drive the stages:
await user1.runStage('First stage'); //will run the 'First stage' in the test and wait for the next stage request
await user1.runStage('Second stage'); //will run the 'Second stage'
user1.runStage('End');