diff options
| author | Randall S. Becker <rsbecker@nexbridge.com> | 2019-02-09 21:59:28 +0300 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2019-02-12 20:09:06 +0300 |
| commit | b0fa1a3f997403bc444cd7a65d798185e9d548ca (patch) | |
| tree | d2d04707bf814b3e3587bd71adcdbbc4eabfdd14 /t/test-lib-functions.sh | |
| parent | e9bd4aa026178caeed76ca00d9034c9dfdb3eefb (diff) | |
test-lib-functions.sh: add generate_zero_bytes function
t5318 and t5562 used /dev/zero, which is not portable. This function
provides both a fixed block of NUL bytes and an infinite stream of NULs.
Signed-off-by: Randall S. Becker <rsbecker@nexbridge.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/test-lib-functions.sh')
| -rw-r--r-- | t/test-lib-functions.sh | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh index 92cf8f812c..bbf68712cc 100644 --- a/t/test-lib-functions.sh +++ b/t/test-lib-functions.sh @@ -116,6 +116,19 @@ remove_cr () { tr '\015' Q | sed -e 's/Q$//' } +# Generate an output of $1 bytes of all zeroes (NULs, not ASCII zeroes). +# If $1 is 'infinity', output forever or until the receiving pipe stops reading, +# whichever comes first. +generate_zero_bytes () { + perl -e 'if ($ARGV[0] == "infinity") { + while (-1) { + print "\0" + } + } else { + print "\0" x $ARGV[0] + }' "$@" +} + # In some bourne shell implementations, the "unset" builtin returns # nonzero status when a variable to be unset was not set in the first # place. |