#!/bin/sh
# PCP QA Test No. 973
# Exercise the zswap PMDA using the running kernel.
#
# Copyright (c) 2014,2016 Red Hat.
#

seq=`basename $0`
echo "QA output created by $seq"

# get standard environment, filters and checks
. ./common.product
. ./common.filter
. ./common.check

[ -f $PCP_PMDAS_DIR/zswap/pmdazswap.python ] || _notrun "zswap pmda not installed"
$sudo test -d /sys/kernel/debug/zswap || _notrun "No kernel support for zswap"

status=1	# failure is the default!
$sudo rm -f $tmp.* $seq.full

_filter_zswap()
{
    # filter metric values for deterministic output
    tee -a $here/$seq.full | sed \
        -e 's/value [0-9][0-9]*/value NUMBER/'
}

pmdazswap_remove()
{
    echo
    echo "=== remove $iam agent ==="
    $sudo ./Remove >$tmp.out 2>&1
    _filter_pmda_remove <$tmp.out
}

pmdazswap_install()
{
    # start from a known starting point
    cd $PCP_PMDAS_DIR/zswap
    $sudo ./Remove >/dev/null 2>&1

    echo
    echo "=== $iam agent installation ==="
    $sudo ./Install </dev/null >$tmp.out 2>&1
    # Check zswap metrics have appeared ... X metrics and Y values
    _filter_pmda_install <$tmp.out \
    | sed \
        -e 's/[0-9][0-9]* warnings, //' \
    | $PCP_AWK_PROG '
/Check zswap metrics have appeared/    { if ($7 >= 8 && $7 <= 20) $7 = "X"
                                         if ($10 >= 8 && $10 <= 20) $10 = "Y"
                                       }
                                       { print }'
}

_prepare_pmda zswap

# note: _restore_auto_restart pmcd done in _cleanup_pmda()
trap "_cleanup_pmda zswap; exit \$status" 0 1 2 3 15

_stop_auto_restart pmcd

# real QA test starts here
pmdazswap_install

# pmcd should have been started by the Install process - check
if pminfo -v zswap > $tmp.info 2> $tmp.err
then
    :
else
    echo "... failed! ... here is the Install log ..."
    cat $tmp.out
fi
cat $tmp.info $tmp.err | _filter_zswap

pmdazswap_remove
status=0
exit
