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libfaketime/test/functests/test_walkone.sh
2019-08-19 19:16:07 +02:00

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# walking-1 test.
# sourced in from testframe.sh.
#
# this script defines a suite of functional tests
# that verifies the correct operation of libfaketime
# with the date command.
run()
{
init
for i in $(range 0 30); do
run_testcase test_with_i $i
done
}
# ----- support routines
init()
{
typeset testsuite="$1"
PLATFORM=$(platform)
if [ -z "$PLATFORM" ]; then
echo "$testsuite: unknown platform! quitting"
return 1
fi
echo "# PLATFORM=$PLATFORM"
return 0
}
# run date cmd under faketime, print time in secs
fakedate()
{
#
# let the time format be raw seconds since Epoch
# for both input to libfaketime, and output of the date cmd.
#
typeset fmt='%s'
export FAKETIME_FMT=$fmt
if [ "mac" == "$PLATFORM" ]; then
if [ -x /usr/local/bin/gdate ] ; then
fakecmd "$1" gdate +$fmt
else
echo "<skip>"
fi
else
fakecmd "$1" date +$fmt
fi
}
#
# compute x**n.
# use only the shell, in case we need to run on machines
# without bc, dc, perl, etc.
#
pow()
{
typeset x="$1" n="$2"
typeset r=1
typeset i=0
while ((i < n)); do
((r = r*x))
((i++))
done
echo $r
}
# run a fakedate test with a given time t
test_with_i()
{
typeset i="$1"
typeset t=$(pow 2 $i)
if [ "mac" == "$PLATFORM" ]; then
if [ -x /usr/local/bin/gdate ] ; then
asserteq $(fakedate $t) $t "(secs since Epoch)"
else
asserteq $t $t "(skipping test, install gdate)"
fi
else
asserteq $(fakedate $t) $t "(secs since Epoch)"
fi
}