This utility is fixture for QUnit.
If you have to use fixture It has some ways.
### 1. Add html in #fixture.
1This case has some cons. fixture is too hard to read and maintain If I have many fixture. For example. It can't know fixture in testcase. So. I search for #fixture in html but It is hard to search.
append or ....;This case has resolve uppon problem. but I feel like a hack.
So. I made fixture. If you use fixture you can easy use fixture.
npm install qunit-fixtureor
bower install qunit-fixtureQUnit.fixture
#fixture{ var currentWidth = documentstylewidth; documentstylewidth = currentWidth + 10;} QUnit;