CachableLookup preventing Jest from exiting

[drewish]

I'm not sure if this or CachableLookup is the right place to report it, but it appears a dependency of this module is preventing Jest from shutting down after running tests. When run with the --detectOpenHandles option I'm seeing:

Jest has detected the following 1 open handle potentially keeping Jest from exiting:

  ●  DNSCHANNEL

      at new CacheableLookup (../node_modules/cacheable-lookup/source/index.js:91:14)
      at new Request (../node_modules/amply.js/lib/request.js:64:21)
      at new Client (../node_modules/amply.js/lib/client.js:9:20)
      at Object.<anonymous> (../node_modules/amply.js/index.js:4:18)

I'd opened szmarczak/cacheable-lookup#58 to see if they could help but the error goes away when I comment out these two lines:

amply-js/lib/request.js

Lines 64 to 65 in 3d726e3

	this.dnsCache = new cacheableLookup;
	this.dnsCache.install(this.httpsAgent);

I'll try downgrading to the 0.0.2-rc.8 release and see if that addresses it.

[drewish]

Maybe the solution is to just upgrade Jest? jestjs/jest#11470 Seems like they no longer think this is a problem.