Enable buffer methods before needing to call StyleSheetServer.renderStatic

[DaBs]

Currently, Aphrodite assumes that it is the first server-side module to render the tree, but
since StyleSheetServer.renderStatic expects a string as return value, it eliminates any possibility of walking the reference with another module.

This PR borrows some of the TestUtils functions to allow a, albeit a bit clunky, method of avoiding having to append classes to the DOM while walking an existing reference to a tree.

[khanbot]

Hey @DaBs,

Thanks for the PR! Mind signing our Contributor License Agreement?

When you've done so, go ahead and comment [clabot:check] and I'll check again.

Yours truly,
khanbot

[DaBs]

[clabot:check]

[khanbot]

CLA signature looks good 👍

[DaBs]

@lencioni I believe you guys have been in need of a fix to this as per #326. Is this something you would consider reviewing?

[DaBs]

@jlfwong Is this something you know if people within the project has time to look at? I believe it's quite a nice way of giving some manual tools for people to be able to temporarily suspend aphrodite style rendering when it comes to SSR.

[monokrome]

I'm running into this issue as well! Any chance this will be merged & released any time soon? :)

[mishkinf]

@jlfwong and @lencioni is there any way somebody can look into merging this fix?

[monokrome]

Y'all, this has been an issue for quite a long time now...

[drianoaz]

Man, I has a problems that this PR will resolve. Has plans to merge it? The problem is the below:

Error: Cannot automatically buffer without a document

@jlfwong can you help us?