nickwallen opened a new pull request #1510: METRON-2254 Intermittent Test 
Failure in RestFunctionsIntegrationTest
URL: https://github.com/apache/metron/pull/1510
 
 
   The `RestFunctionsIntegrationTest.restGetShouldTimeoutWithSuppliedTimeout` 
test will intermittently fail.
   
   We use an in-memory, mock server to respond to HTTP requests made during 
these tests. The way that we currently test a timeout is to set the timeout 
extremely low (1 millisecond) and assume that the in-memory, mock server will 
not be able to respond fast enough.  In most cases this works, but in some 
cases this does not and causes CI failures.
   
   This most likely doesn't work at times because the functionality that we use 
to timeout just isn't granular enough to enforce a 1 millisecond timeout.  So 
its much more likely enforcing a timeout on the order of tens or hundreds of 
milliseconds.  And if the enforcement mechanism is slower than mock server, the 
test case will fail.
   
   Rather than doing that, there is a method that allows us to introduce a 
fixed delay before the mock server responds.  This should provide us with 
reliable pass/fail signal from these tests.
   
   
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