Integration tests used to check more complex use-cases we can not cover using our unit tests.
Most are not routinely executed without our AppVeyor build pipeline or when
calling our build.sh script with t as argument. But they are,
nevertheless, designed to exit with code 0 on success and with 1 on failure.
Checks whether Hydrogen does exit cleanly and without crashing when using the JACK audio driver.
Checks whether transport and relocation works using the JACK audio driver in a real life environment.