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#!/bin/sh
#
# Check that the progress bar is produced when "--force" is used, and is not
# when it is not, providing stderr is a file.
# 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 "${workFile1:?not set - call this from 'make check'}"
dd if=/dev/zero bs=100 count=1 2>/dev/null \
| "${testSubject}" -f -p -i 0.1 -L 100 >/dev/null 2>"${workFile1}"
# There should be more than 2 different lines of output.
#
lineCount=$(tr '\r' '\n' < "${workFile1}" | sort | uniq -u | wc -l | tr -dc '0-9')
if ! test "${lineCount}" -gt 2; then
echo "fewer than 3 different progress lines with \"--force\" (${lineCount})"
tr '\r' '\n' < "${workFile1}" | sort | uniq -u
exit 1
fi
# Now try again without "--force".
dd if=/dev/zero bs=100 count=1 2>/dev/null \
| "${testSubject}" -p -i 0.1 -L 100 >/dev/null 2>"${workFile1}"
# There should be no output without "--force".
#
if test -s "${workFile1}"; then
echo "unexpected output when not using \"--force\""
tr '\r' '\n' < "${workFile1}" | sort | uniq -u
exit 1
fi
exit 0
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