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#!/bin/sh
#
# Similar to the "--size" check but, instead, using another file's size with
# "--size @".
# 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'}"
# Process 100 bytes at 100 bytes per second, interval 0.1 seconds, with the
# size set from a file of $1 bytes and expecting a percentage of $2 at the
# end.
sizeCheck () {
# Make a file of size $1 bytes, for reference.
dd if=/dev/zero bs="$1" count=1 2>/dev/null >"${workFile2}"
# Run 100 bytes through the program, using the reference file's size
# as the percentage reference.
dd if=/dev/zero bs=100 count=1 2>/dev/null \
| "${testSubject}" -s "@${workFile2}" -n -i 0.1 -L 100 >/dev/null 2>"${workFile1}"
lineCount=$(wc -l < "${workFile1}" | tr -dc '0-9')
finalLine=$(sed -n '$p' < "${workFile1}")
# The number of output lines should be >5 and <13, and the final
# percentage should be $2.
#
if ! test "${lineCount}" -gt 5; then
echo "(reference size=$1) fewer than 6 output lines (${lineCount})"
exit 1
fi
if ! test "${lineCount}" -lt 13; then
echo "(reference size=$1) more than 12 output lines (${lineCount})"
exit 1
fi
if ! test "${finalLine}" = "$2"; then
echo "(reference size=$1): final percentage was not $2 (${finalLine})"
ls -l "${workFile2}"
cat "${workFile1}"
exit 1
fi
}
sizeCheck 100 100
sizeCheck 200 50
sizeCheck 50 200
exit 0
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