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  • Committer: Bazaar Package Importer
  • Author(s): Clint Adams
  • Date: 2005-05-07 12:59:53 UTC
  • Revision ID: james.westby@ubuntu.com-20050507125953-xzy2bwkb2qamglwm
Tags: upstream-1.9
Import upstream version 1.9

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src/tests/score-1.shin
 
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#!/bin/sh
 
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# verify that empirical divergence is zero for a single email.
 
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PATH=/bin:/usr/bin
 
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DBACL=$TESTBIN/dbacl
 
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prerequisite_command() {
 
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    type $2 2>&1 > /dev/null
 
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    if [ 0 -ne $? ]; then
 
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        echo "$1: $2 not found, test will be skipped"
 
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        exit 77
 
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    fi
 
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}
 
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prerequisite_command $0 grep
 
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prerequisite_command $0 awk
 
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prerequisite_command $0 tr
 
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DBACL_PATH="`pwd`/`basename $0 .sh`_`date +"%Y%m%dT%H%M%S"`"
 
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export DBACL_PATH
 
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mkdir "$DBACL_PATH"
 
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cat sample.spam-2 \
 
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    | $DBACL -0 -l dummy -X -d -T email \
 
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    | grep '# shannon' \
 
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    | awk '{print $5/log(2)}' \
 
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    | tr '\n' ' ' \
 
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    > "$DBACL_PATH/out1"
 
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cat sample.spam-2 \
 
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    | $DBACL -c dummy -vX \
 
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    | awk '{print $3, $5}' \
 
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    > "$DBACL_PATH/out2"
 
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echo "`cat \"$DBACL_PATH/out1\"` `cat \"$DBACL_PATH/out2\"`" \
 
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    | awk '
 
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function abs(x) { return (x >= 0) ? x : -x }
 
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{
 
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    # error in divergence can be up to 15% of shannon entropy estimate
 
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    # must invert exit value
 
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    exit !( abs($1 - $2) < (0.15) * ($3) ) 
 
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}'
 
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RESULT=$?
 
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rm -rf "$DBACL_PATH"
 
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exit $RESULT
 
 
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