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#!/bin/sh
#
# Check that the average transfer rate counter changes, but not more than it
# should.
# 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 "${workFile1:?not set - call this from 'make check'}"
# Transfer 210 bytes as 100 bytes, a 1 second gap, 110 bytes, and another 1
# second gap.
#
(dd if=/dev/zero bs=100 count=1 2>/dev/null;
sleep 1;
dd if=/dev/zero bs=110 count=1 2>/dev/null;
sleep 1;
) | "${testSubject}" -f -i 0.5 -a >/dev/null 2>"${workFile1}"
# Count the number of rates output that are below 80.
#
lineCount=$(tr '\r' '\n' < "${workFile1}" | tr -dc '0-9.\n' | sed '/^$/d' | awk '$1<80{print}' | wc -l | tr -dc '0-9')
# Nearly all of the output rates should be above 80 since the average rate
# will always be around 100 bytes per second, except for pauses.
#
test "${lineCount}" -lt 2 && exit 0
echo "average rate varied more than expected"
tr '\r' '\n' < "${workFile1}"
exit 1
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