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#!/bin/sh
#
# Try changing the format of a transfer remotely.
# Allow all tests to be skipped, e.g. during a release build
test "${SKIP_ALL_TESTS}" = "1" && exit 77
true "${testSubject:?not set - call this from 'make check'}"
true "${workFile1:?not set - call this from 'make check'}"
true "${workFile2:?not set - call this from 'make check'}"
true "${workFile3:?not set - call this from 'make check'}"
true "${workFile4:?not set - call this from 'make check'}"
# Do nothing if it is not supported.
if ! "${testSubject}" -h 2>/dev/null | grep -Eq "^ -R,"; then
echo "Not supported on this platform"
exit 77
fi
# Generate a 10MiB test file of null bytes.
dd if=/dev/zero of="${workFile1}" bs=1024 count=10240 2>/dev/null
true > "${workFile4}"
(
# Don't start doing anything until the main transfer process, started below, has begun.
while test -e "${workFile4}" && ! test -s "${workFile4}"; do sleep 0.1; done
sleep 1
"${testSubject}" -R "$(cat "${workFile4}")" -a
sleep 2
"${testSubject}" -R "$(cat "${workFile4}")" -L 10M
) &
"${testSubject}" -L 2M -f -P "${workFile4}" "${workFile1}" > "${workFile2}" 2>"${workFile3}"
# Make sure there is more than one length of line (excluding blank lines).
line_lengths=$(tr '\r' '\n' < "${workFile3}" | awk '{print length($0)}' | grep -Fvx 0 | sort -n | uniq | wc -l | tr -dc '0-9')
if ! test "${line_lengths}" -gt 1; then
echo "only one line length seen - format change failed"
exit 1
fi
exit 0
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