Work around Bash buffering bug causing test failures #766
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The boot tests run several iterations inside a single 'heroku run', as rthis drastically reduces the overall time taken for tests. Some Bash 5.0 bug (it seems to happen only on heroku-20) causes output from a command (that is still running through a tee process substitution) to arrive a bit after the next echo statement, and as a result, sometimes, the last line of a delimited chunk is not the exit status, but output from the program, causing the test to fail. So we just write outputs to files, and cat them together at the end.
runesoerensen
approved these changes
Nov 22, 2024
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The boot tests run several iterations inside a single
heroku run, as this drastically reduces the overall time taken for tests.Some Bash 5.0 bug (it seems to happen only on heroku-20) causes output from a command (that is still running through a
teeprocess substitution) to arrive a bit after the nextechostatement, and as a result, sometimes, the last line of a delimited chunk is not the exit status, but output from the program, causing the test to fail.So we just write outputs to files, and
catthem together at the end.GUS-W-17294876