[tor-bugs] #8806 [Stem]: Integrate coverage into runTests.py

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#8806: Integrate coverage into runTests.py
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 Reporter:  atagar       |          Owner:  atagar
     Type:  enhancement  |         Status:  new   
 Priority:  minor        |      Milestone:        
Component:  Stem         |        Version:        
 Keywords:               |         Parent:        
   Points:               |   Actualpoints:        
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 A while back we investigated our test coverage (#7821). We should have
 runTests.py output a coverage report when the user supplies a '--coverage'
 argument. A couple gotchas we should thing about...

 1. While investigating #7821 I found that coverage froze the test run.
 This might be from coverage being out of date or a stem bug that has since
 been fixed so just a potential hiccup to keep in mind.

 2. Does coverage work with python3? We should keep in mind how
 'runRests.py --unit --python3 --coverage' will behave.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8806>
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