the running test cases are not actively killed

[breezewish]

Suppose we have only one test to run, which will stuck forever, for whatever reason.

Running the gtest-parallel by assigning --timeout=x will be also stuck forever, instead of finished in time and reporting that test to be timed out.

The problem occurs because we wait the process to be finished without a time out:

gtest-parallel/gtest_parallel.py

Line 92 in f4d65b5

code = p.wait()

A solution might be https://stackoverflow.com/a/10012262/4597218