TestCafe can't resize MS Edge 15

[Scrum]

Are you requesting a feature or reporting a bug?

Bug

What is the current behavior?

1) AssertionError: expected 30 to deeply equal 29

      Browser: Edge 15.15063.0 / Windows 10 0.0.0

         16 |    const gridRowPage = new GridRowPage();
         17 |
         18 |    await t.navigateTo(gridColPage.url)
         19 |        .expect(gridColPage.colums.count).eql(12)
         20 |        .resizeWindow(500, 500)
       > 21 |        .expect(gridColPage.colums.nth(0).clientWidth).eql(29)
         22 |        .navigateTo(gridRowPage.url)
         23 |        .expect(gridRowPage.rows.count).eql(12)
         24 |        .resizeWindow(500, 500)
         25 |        .expect(gridRowPage.rows.clientHeight).eql(25);
         26 |});

If you perform a manual inspection, then the width of the element is 29

What is the expected behavior?

test passed

How would you reproduce the current behavior (if this is a bug)?

$ git clone https://github.com/GitScrum/slims.git && cd slims
$ npm i && npm t

This should be done on the platform Windows 10

Provide the test code and the tested page URL (if applicable)

Tested page URL: https://github.com/GitScrum/slims/blob/master/tests/e2e/index-test.js#L14-L26

Specify your

• operating system: Windows 10 0.0.0
• testcafe version: 0.15.0
• node.js version: v8.0.0

[AlexanderMoskovkin]

Hi Ivan,

I've checked your scenario and it works properly on my side.
I've added a debug command before the assertion:

await t.navigateTo(gridColPage.url)
        .expect(gridColPage.colums.count).eql(12)
        .resizeWindow(500, 500)
        .debug()
        .expect(gridColPage.colums.nth(0).clientWidth).eql(29)

Here is a screenshot how does it look on my side:

As you can see TestCafe run is stopped on the debug command. window.innerWidth equals 500 as expected and the clientWidth of the column is 29. I think it can be related to your MS Edge rendering specific or some extensions behavior. Could you please perform the same steps as I did to see what's wrong on your side?

[Scrum]

@AlexanderMoskovkin Hi, I think the problem is resizeWindow. I changed the value to 600 but the window did not change

[AndreyBelym]

Hello @gitscrum, I reproduced the problem with resizeWindow and Edge 15. It's related to the OS-specific native module: DevExpress/testcafe-browser-tools#117. Need some to investigate and fix it. I will inform you when the fix will be available in a next alpha/release.

[Scrum]

@AndreyBelym Hi, thanks for the feedback. And also I have problems with:
MacOS 10.12.5
Firefox DE 54.0b14
Chrome 61.0.3122
Safari 10.1.1

[AndreyBelym]

Hello @gitscrum, we discovered that some apps can prevent TestCafe from accessing browser windows. In this case, relogin without session restore might be helpful.

[lock]

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