V7's toHaveStyleRule don't work with styled-componentsV5

[pkhodaveissi]

For context:
#294

what does this line do?
const isStyledClass = (className) => /^(\w+(-|_))?sc-/.test(className);
and why it's necessary to have it in. this function
hasClassNames

I like to submit a PR to fix this so It'll be a great help if you could explain this to me.

[cdbenj]

I was wondering the same thing too. In my case, our components have a different namespace which gets overlooked by toHaveStyleRule