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#!/bin/bash
# The purpose of this test is to ensure that the entries inserted into
# the ThreadSafeOutputFileStream object are correctly ordered per
# thread. This involves creating multiple threads all writing to the
# same output file, and then greping the output per thread to make
# sure the order is correct.
#
# The order should be (after greping per thread index):
#
# Thread index: 0 Entry: 0
# Thread index: 0 Entry: 1
# Thread index: 0 Entry: 2
# Thread index: 0 Entry: 3
#
# Thread index: 1 Entry: 0
# Thread index: 1 Entry: 1
# Thread index: 1 Entry: 2
# Thread index: 1 Entry: 3
#
# Thread index: 2 Entry: 0
# Thread index: 2 Entry: 1
# Thread index: 2 Entry: 2
# Thread index: 2 Entry: 3
#
# Since matching grep results to strings can be tricky due to
# linebreaks, I replaced the line breaks with semicolons, and compare
# accordingly.
function die { echo Failure $1: status $2 ; exit $2 ; }
test_threadSafeOutputFileStream || die "test_ThreadSafeOutputFileStream" $?
for thindex in 0 1 2;
do
comparison="Thread index: ${thindex} Entry: 0;Thread index: ${thindex} Entry: 1;Thread index: ${thindex} Entry: 2;Thread index: ${thindex} Entry: 3;"
[[ "$( grep "Thread index: ${thindex}" thread_safe_ofstream_test.txt | tr \\n \; )" == "${comparison}" ]] || die "test_ThreadSafeOutputFileStream_output" $?
done
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