Update/shrinkwrap

[oandregal]

While rebasing and shrinkwrapping an unrelated PR #6945 I found that two tests were failing. It seems that the cause is that npm-shrinkwrap.json is outdated in master, so I prefer separate concerns and merge the other PR after this is solved.

[matticbot]

Test live: https://calypso.live/?branch=update/shrinkwrap

[oandregal]

Tested the reader and all seem to work as expected. cc @blowery for review, in case I missed something.

[nb]

This works well, though before we can merge it, could you help me understand why exactly did the tests break? Did they break after shrink-wrapping?

[oandregal]

This is going to be fun.

Instructions to reproduce the bug:

git checkout master
make distclean
make test 
// tests pass

make shrinkwrap
make test 
// tests fail 

Unfortunately, these instructions would have let you to reproduce the bug yesterday in the morning, but not today. More specifically, this bug is only reproducible if you did the shrinkwrap at any point between 2017-03-20 18:10 and 2017-03-21 10:39.

Reason is: the source of error is an update in the fbjs library which was fixed a few hours ago. Doing a shrinkwrap now will pull the latest version with the fix in place.

A more detailed explanation:

• The version that introduced the bug was 0.8.10. These are the relevant changes between 0.8.9 and 0.8.10. They were trying to address these issues: Using document and window global variables won't cover all cases facebook/fbjs#156, Make DOM utilities work in nested browsing contexts facebook/fbjs#188, and Make DOM utilities work in nested browsing contexts facebook/fbjs#222 with the new version.
• Unfortunately, the changes affected enzyme lib by introducing the need for a document reference in node contexts. But because open-source is awesome, a fix is already deployed and a new version released, 0.8.11.

[oandregal]

I still prefer merging this as a separate PR, and then merge #6945

@nb could you review and green-lit this PR?

[oandregal]

Ah, forgot to mention: the tests no longer need fixing for the reason stated above, a mere shrinkwrap will suffice. Rebased the PR with the latest master.

[nb]

👍