#!/bin/sh
# PCP QA Test No. 1480
# Do PMDA lm-sensors testing
#
# Copyright (c) 2018-2019 Red Hat.  All Rights Reserved.
#

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

# get standard environment, filters and checks
. ./common.python

_filter()
{
    sed \
	-e '/Information not currently available/d' \
	-e '/No value(s) available/d' \
    # end
}

_cleanup()
{
    cd $here
    _restore_pmda_install $iam
    $sudo rm -rf $tmp $tmp.*
    $sudo rm -f domain.h.python
    exit $status
}

status=1	# failure is the default!
$sudo rm -rf $tmp $tmp.* $seq.full
trap "_cleanup; exit \$status" 0 1 2 3 15

$python -c 'from pcp import pmda' 2>/dev/null
test $? -eq 0 || _notrun 'Python pcp pmda module is not installed'

# This test should not be run if pmda lmsensors not installed
# or if sensors binary not installed
[ -x $PCP_PMDAS_DIR/lmsensors/pmdalmsensors.python ] || _notrun "lmsensors PMDA not installed"
[ -x /usr/bin/sensors ] || _notrun "/usr/bin/sensors seems not executable for me."
sensors -u 2>&1 | grep -q 'No sensors found' && _notrun "No sensors found, probably a VM"

iam=lmsensors
echo >$here/$seq.full

# install the PMDA
_prepare_pmda_install $iam
$sudo ./Remove > $tmp.out 2>&1
$sudo ./Install </dev/null >/dev/null 2>&1
# verify
pminfo --verify $iam | _filter

# How many sensors did PMDA lmsensors register?
PMDA=`pminfo lmsensors|wc -l`
# How many sensors did binary lmsensors find?
SENS=`/usr/bin/sensors -u|egrep '_input: '|wc -l`

if [ $PMDA -eq $SENS ]; then
    echo -n "number of sensors from '/usr/bin/sensors -u' and from 'pminfo "
    echo "lmsensors' matches."
else
    echo -n "number of sensors from '/usr/bin/sensors -u' and from 'pminfo "
    echo "lmsensors' does not match."
    echo "pminfo lmsensors|wc -l:" >>$here/seq.full
    pminfo lmsensors |wc -l >>$here/seq.full
    echo "/usr/bin/sensors -u|egrep '_input: '|wc -l" >>$here/$seq.full
    /usr/bin/sensors -u|egrep '_input: '|wc -l >>$here/$seq.full
fi

# Now, I can not check if the actual values for sensors are the same,
# because it's not unlikely they are slightly different between multiple 
# calls of 'sensors -u'.  So I will compare if they are +-10%.
# Other problem: the order of sensors is hard to predict, so I will 
# compare the averages.
# Alternative: I could do the comparison 5 times..
#
# Problem with current implementation: 
# - this still fails for a fan tuning up suddenly, i.e. from 0 to 3k.

echo "sensors -u output:" >> $here/$seq.full
SENS=`sensors -u | tee -a $here/$seq.full | grep '_input: ' | \
	awk '
$1 ~ /temp[0-9]/ && $2 < -127	{ next }
$1 ~ /fan[0-9]/ && $2 < 0	{ next }
				{ sum += $2 }
END				{ print int(sum+0.5) }'`

echo "pminfo -f lmsensors output:" >> $here/$seq.full

PMDA=`pminfo -f lmsensors | tee -a $here/$seq.full | grep '^  *value ' | \
	awk '{ sum += $2 } END { print sum }'`

if _within_tolerance "Expecting $SENS +- 10%" $PMDA $SENS 10%; then
    echo -n "The output of the 'sensors -u' values differs not more than 10% "
    echo "from the pmda output."
else
    echo -n "The output of the 'sensors -u' values differs more than 10% "
    echo "from the pmda output."
    echo "Sum of PMDA values: $PMDA"
    echo "Sum of sensors -u values: $SENS"
fi

$sudo ./Remove >$tmp.out 2>&1
_filter_pmda_remove <$tmp.out

# success, all done
status=0
exit
