"Jeff Hostetler via GitGitGadget" <gitgitgadget@xxxxxxxxx> writes: > +test_expect_success 'perf stream, return code 0' ' > + test_when_finished "rm trace.perf actual expect" && > + GIT_TR2_PERF="$(pwd)/trace.perf" && export GIT_TR2_PERF && > + $TT trace2 001return 0 && > + unset GIT_TR2_PERF && Do not do this. Stoppage in any different one of these steps would leave the state of the process in different state and affects later tests (e.g. TR2_PERF may or may not be exported). Is $TT always "test-tool" (i.e. the binary, not a shell function)? If so, consider using a single-short export, i.e. GIT_TR2_PERF="..." test-tool trace2 001return 0 &&