Upgrade to Jest 22

[jaredpalmer]

• Upgrade to Jest 22.

• Also explore new Jest helper for TypeScript

[FabioAntunes]

shouldn't this be just bumping the version on the package.json?

It's just with React 16, some errors are being swallowed so it would be nice to get Jest 22 facebook/react#11098

[JacopKane]

#462

[jamesbhobbs]

@jaredpalmer The current version of Jest in the razzle package has these vulnerabilities: https://snyk.io/test/npm/razzle Is there a reason why a simple version bump of jest wouldn't be ok (as fabio suggested)? I've tried bumping to what you have in this repo's base package.json here #648 and tests pass.

[stale]

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[stale]

ProBot automatically closed this due to inactivity. Holler if this is a mistake, and we'll re-open it.