test/integration/framework

   1 #!/bin/sh -- # no runable script, just for vi
   2
   3 # we all like colorful messages
   4 CERROR="\e[1;31m" # red
   5 CWARNING="\e[1;33m" # yellow
   6 CMSG="\e[1;32m" # green
   7 CINFO="\e[1;96m" # light blue
   8 CDEBUG="\e[1;94m" # blue
   9 CNORMAL="\e[0;39m" # default system console color
  10 CDONE="\e[1;32m" # green
  11 CPASS="\e[1;32m" # green
  12 CFAIL="\e[1;31m" # red
  13 CCMD="\e[1;35m" # pink
  14
  15 msgdie() { echo "${CERROR}E: $1${CNORMAL}" >&2; exit 1; }
  16 msgwarn() { echo "${CWARNING}W: $1${CNORMAL}" >&2; }
  17 msgmsg() { echo "${CMSG}$1${CNORMAL}" >&2; }
  18 msginfo() { echo "${CINFO}I: $1${CNORMAL}" >&2; }
  19 msgdebug() { echo "${CDEBUG}D: $1${CNORMAL}" >&2; }
  20 msgdone() { echo "${CDONE}DONE${CNORMAL}" >&2; }
  21 msgnwarn() { echo -n "${CWARNING}W: $1${CNORMAL}" >&2; }
  22 msgnmsg() { echo -n "${CMSG}$1${CNORMAL}" >&2; }
  23 msgninfo() { echo -n "${CINFO}I: $1${CNORMAL}" >&2; }
  24 msgndebug() { echo -n "${CDEBUG}D: $1${CNORMAL}" >&2; }
  25 msgtest() { echo -n "${CINFO}$1 ${CCMD}$(echo "$2" | sed -e 's/^aptc/apt-c/' -e 's/^aptg/apt-g/' -e 's/^aptf/apt-f/')${CINFO} …${CNORMAL} " >&2; }
  26 msgpass() { echo "${CPASS}PASS${CNORMAL}" >&2; }
  27 msgskip() { echo "${CWARNING}SKIP${CNORMAL}" >&2; }
  28 msgfail() { echo "${CFAIL}FAIL${CNORMAL}" >&2; }
  29
  30 # enable / disable Debugging
  31 MSGLEVEL=${MSGLEVEL:-3}
  32 if [ $MSGLEVEL -le 0 ]; then
  33         msgdie() { true; }
  34 fi
  35 if [ $MSGLEVEL -le 1 ]; then
  36         msgwarn() { true; }
  37         msgnwarn() { true; }
  38 fi
  39 if [ $MSGLEVEL -le 2 ]; then
  40         msgmsg() { true; }
  41         msgnmsg() { true; }
  42 fi
  43 if [ $MSGLEVEL -le 3 ]; then
  44         msginfo() { true; }
  45         msgninfo() { true; }
  46 fi
  47 if [ $MSGLEVEL -le 4 ]; then
  48         msgdebug() { true; }
  49         msgndebug() { true; }
  50 fi
  51 msgdone() {
  52         if [ "$1" = "debug" -a $MSGLEVEL -le 4 ] ||
  53            [ "$1" = "info" -a $MSGLEVEL -le 3 ] ||
  54            [ "$1" = "msg" -a $MSGLEVEL -le 2 ] ||
  55            [ "$1" = "warn" -a $MSGLEVEL -le 1 ] ||
  56            [ "$1" = "die" -a $MSGLEVEL -le 0 ]; then
  57                 true;
  58         else
  59                 echo "${CDONE}DONE${CNORMAL}" >&2;
  60         fi
  61 }
  62
  63 runapt() {
  64         msgdebug "Executing: ${CCMD}$*${CDEBUG} "
  65         if [ -f ./aptconfig.conf ]; then
  66                 APT_CONFIG=aptconfig.conf LD_LIBRARY_PATH=${BUILDDIRECTORY} ${BUILDDIRECTORY}/$*
  67         else
  68                 LD_LIBRARY_PATH=${BUILDDIRECTORY} ${BUILDDIRECTORY}/$*
  69         fi
  70 }
  71 aptconfig() { runapt apt-config $*; }
  72 aptcache() { runapt apt-cache $*; }
  73 aptget() { runapt apt-get $*; }
  74 aptftparchive() { runapt apt-ftparchive $*; }
  75
  76 setupenvironment() {
  77         TMPWORKINGDIRECTORY=$(mktemp -d)
  78         local TESTDIR=$(readlink -f $(dirname $0))
  79         msgninfo "Preparing environment for ${CCMD}$0${CINFO} in ${TMPWORKINGDIRECTORY}… "
  80         BUILDDIRECTORY="${TESTDIR}/../../build/bin"
  81         test -x "${BUILDDIRECTORY}/apt-get" || msgdie "You need to build tree first"
  82         local OLDWORKINGDIRECTORY=$(pwd)
  83         CURRENTTRAP="cd /; rm -rf $TMPWORKINGDIRECTORY; cd $OLDWORKINGDIRECTORY"
  84         trap "$CURRENTTRAP" 0 HUP INT QUIT ILL ABRT FPE SEGV PIPE TERM
  85         cd $TMPWORKINGDIRECTORY
  86         mkdir rootdir aptarchive keys
  87         cd rootdir
  88         mkdir -p etc/apt/apt.conf.d etc/apt/sources.list.d etc/apt/trusted.gpg.d etc/apt/preferences.d var/cache
  89         mkdir -p var/log/apt var/lib/apt
  90         mkdir -p var/lib/dpkg/info var/lib/dpkg/updates var/lib/dpkg/triggers
  91         local STATUSFILE=$(echo "$(basename $0)" | sed 's/^test-/status-/')
  92         if [ -f "${TESTDIR}/${STATUSFILE}" ]; then
  93                 cp "${TESTDIR}/${STATUSFILE}" var/lib/dpkg/status
  94         else
  95                 touch var/lib/dpkg/status
  96         fi
  97         touch var/lib/dpkg/available
  98         mkdir -p usr/lib/apt
  99         ln -s ${BUILDDIRECTORY}/methods usr/lib/apt/methods
 100         cd ..
 101         local PACKAGESFILE=$(echo "$(basename $0)" | sed 's/^test-/Packages-/')
 102         if [ -f "${TESTDIR}/${PACKAGESFILE}" ]; then
 103                 cp "${TESTDIR}/${PACKAGESFILE}" aptarchive/Packages
 104         else
 105                 touch aptarchive/Packages
 106         fi
 107         cp $(find $TESTDIR -name '*.pub' -o -name '*.sec') keys/
 108         ln -s ${TMPWORKINGDIRECTORY}/keys/joesixpack.pub rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg
 109         echo "Dir \"${TMPWORKINGDIRECTORY}/rootdir\";" > aptconfig.conf
 110         echo "Debug::NoLocking \"true\";" >> aptconfig.conf
 111         echo "APT::Get::Show-User-Simulation-Note \"false\";" >> aptconfig.conf
 112         echo "Dir::Bin::dpkg \"fakeroot\";" >> aptconfig.conf
 113         echo "DPKG::options:: \"dpkg\";" >> aptconfig.conf
 114         echo "DPKG::options:: \"--root=${TMPWORKINGDIRECTORY}/rootdir\";" >> aptconfig.conf
 115         echo "DPKG::options:: \"--force-not-root\";" >> aptconfig.conf
 116         echo "DPKG::options:: \"--force-bad-path\";" >> aptconfig.conf
 117         echo "DPKG::options:: \"--log=${TMPWORKINGDIRECTORY}/rootdir/var/log/dpkg.log\";" >> aptconfig.conf
 118         export LC_ALL=C
 119         msgdone "info"
 120 }
 121
 122 configarchitecture() {
 123         local CONFFILE=rootdir/etc/apt/apt.conf.d/01multiarch.conf
 124         echo "APT::Architecture \"$1\";" > $CONFFILE
 125         shift
 126         while [ -n "$1" ]; do
 127                 echo "APT::Architectures:: \"$1\";" >> $CONFFILE
 128                 shift
 129         done
 130 }
 131
 132 setupsimplenativepackage() {
 133         local NAME="$1"
 134         local ARCH="$2"
 135         local VERSION="$3"
 136         local RELEASE="${4:-unstable}"
 137         local DEPENDENCIES="$5"
 138         local DESCRIPTION="$6"
 139         local SECTION="${7:-others}"
 140         local DISTSECTION
 141         if [ "$SECTION" = "$(echo "$SECTION" | cut -d'/' -f 2)" ]; then
 142                 DISTSECTION="main"
 143         else
 144                 DISTSECTION="$(echo "$SECTION" | cut -d'/' -f 1)"
 145         fi
 146         local BUILDDIR=incoming/${NAME}-${VERSION}
 147         mkdir -p ${BUILDDIR}/debian/source
 148         cd ${BUILDDIR}
 149         echo "* most suckless software product ever" > FEATURES
 150         test -e debian/copyright || echo "Copyleft by Joe Sixpack $(date +%Y)" > debian/copyright
 151         test -e debian/changelog || echo "$NAME ($VERSION) $RELEASE; urgency=low
 152
 153   * Initial release
 154
 155  -- Joe Sixpack <joe@example.org>  $(date -R)" > debian/changelog
 156         test -e debian/control || echo "Source: $NAME
 157 Section: $SECTION
 158 Priority: optional
 159 Maintainer: Joe Sixpack <joe@example.org>
 160 Build-Depends: debhelper (>= 7)
 161 Standards-Version: 3.9.1
 162
 163 Package: $NAME
 164 Architecture: $ARCH" > debian/control
 165         test -z "$DEPENDENCIES" || echo "$DEPENDENCIES" >> debian/control
 166         if [ -z "$DESCRIPTION" ]; then
 167                 echo "Description: an autogenerated dummy ${NAME}=${VERSION}/${RELEASE}
 168  If you find such a package installed on your system,
 169  YOU did something horribly wrong! They are autogenerated
 170  und used only by testcases for APT and surf no other propose…" >> debian/control
 171         else
 172                 echo "Description: $DESCRIPTION" >> debian/control
 173         fi
 174         test -e debian/compat || echo "7" > debian/compat
 175         test -e debian/source/format || echo "3.0 (native)" > debian/source/format
 176         test -e debian/rules || cp /usr/share/doc/debhelper/examples/rules.tiny debian/rules
 177         cd - > /dev/null
 178 }
 179
 180 buildsimplenativepackage() {
 181         local NAME="$1"
 182         local ARCH="$2"
 183         local VERSION="$3"
 184         local RELEASE="${4:-unstable}"
 185         local DEPENDENCIES="$5"
 186         local DESCRIPTION="$6"
 187         local SECTION="${7:-others}"
 188         local DISTSECTION
 189         if [ "$SECTION" = "$(echo "$SECTION" | cut -d'/' -f 2)" ]; then
 190                 DISTSECTION="main"
 191         else
 192                 DISTSECTION="$(echo "$SECTION" | cut -d'/' -f 1)"
 193         fi
 194         setupsimplenativepackage "$NAME" "$ARCH" "$VERSION" "$RELEASE" "$DEPENDENCIES" "$DESCRIPTION" "$SECTION"
 195         buildpackage "incoming/${NAME}-${VERSION}" "$RELEASE" "$DISTSECTION"
 196         rm -rf "incoming/${NAME}-${VERSION}"
 197 }
 198
 199 buildpackage() {
 200         local BUILDDIR=$1
 201         local RELEASE=$2
 202         local SECTION=$3
 203         msgninfo "Build package $(echo "$BUILDDIR" | grep -o '[^/]*$') for ${RELEASE} in ${SECTION}… "
 204         cd $BUILDDIR
 205         if [ "$ARCH" = "all" ]; then
 206                 ARCH="$(dpkg-architecture -qDEB_HOST_ARCH 2> /dev/null)"
 207         fi
 208         local BUILT="$(dpkg-buildpackage -uc -us -a$ARCH 2> /dev/null)"
 209         local PKGS="$( echo "$BUILT" | grep '^dpkg-deb: building package' | cut -d'/' -f 2 | sed -e "s#'\.##")"
 210         local SRCS="$( echo "$BUILT" | grep '^dpkg-source: info: building' | grep -o '[a-z0-9._-]*$')"
 211         cd - > /dev/null
 212         for PKG in $PKGS; do
 213                 echo "pool/${PKG}" >> ${TMPWORKINGDIRECTORY}/incoming/${RELEASE}.${SECTION}.pkglist
 214         done
 215         for SRC in $SRCS; do
 216                 echo "pool/${SRC}" >> ${TMPWORKINGDIRECTORY}/incoming/${RELEASE}.${SECTION}.srclist
 217         done
 218         msgdone "info"
 219 }
 220
 221 buildaptarchive() {
 222         if [ -d incoming ]; then
 223                 buildaptarchivefromincoming $*
 224         else
 225                 buildaptarchivefromfiles $*
 226         fi
 227 }
 228
 229 createaptftparchiveconfig() {
 230         local ARCHS="$(find pool/ -name '*.deb' | grep -oE '_[a-z0-9-]+\.deb$' | sort | uniq | sed -e '/^_all.deb$/ d' -e 's#^_\([a-z0-9-]*\)\.deb$#\1#' | tr '\n' ' ')"
 231         echo -n 'Dir {
 232         ArchiveDir "' >> ftparchive.conf
 233         echo -n $(readlink -f .) >> ftparchive.conf
 234         echo -n '";
 235         CacheDir "' >> ftparchive.conf
 236         echo -n $(readlink -f ..) >> ftparchive.conf
 237         echo -n '";
 238         FileListDir "' >> ftparchive.conf
 239         echo -n $(readlink -f pool/) >> ftparchive.conf
 240         echo -n '";
 241 };
 242 Default {
 243         Packages::Compress ". gzip bzip2 lzma";
 244         Sources::Compress ". gzip bzip2 lzma";
 245         Contents::Compress ". gzip bzip2 lzma";
 246 };
 247 TreeDefault {
 248         Directory "pool/";
 249         SrcDirectory "pool/";
 250 };
 251 APT {
 252         FTPArchive {
 253                 Release {
 254                         Origin "joesixpack";
 255                         Label "apttestcases";
 256                         Suite "unstable";
 257                         Description "repository with dummy packages";
 258                         Architectures "' >> ftparchive.conf
 259         echo -n "$ARCHS" >> ftparchive.conf
 260         echo 'source";
 261                 };
 262         };
 263 };' >> ftparchive.conf
 264         for DIST in $(find ./pool/ -maxdepth 1 -name '*.pkglist' -type f | cut -d'/' -f 3 | cut -d'.' -f 1 | sort | uniq); do
 265                 echo -n 'tree "dists/' >> ftparchive.conf
 266                 echo -n "$DIST" >> ftparchive.conf
 267                 echo -n '" {
 268         Architectures "' >> ftparchive.conf
 269                 echo -n "$ARCHS" >> ftparchive.conf
 270                 echo -n 'source";
 271         FileList "' >> ftparchive.conf
 272                 echo -n "${DIST}.\$(SECTION).pkglist" >> ftparchive.conf
 273                 echo -n '";
 274         SourceFileList "' >> ftparchive.conf
 275                 echo -n "${DIST}.\$(SECTION).srclist" >> ftparchive.conf
 276                 echo -n '";
 277         Sections "' >> ftparchive.conf
 278                 echo -n "$(find ./pool/ -maxdepth 1 -name "${DIST}.*.pkglist" -type f | cut -d'/' -f 3 | cut -d'.' -f 2 | sort | uniq | tr '\n' ' ')" >> ftparchive.conf
 279                 echo '";
 280 };' >> ftparchive.conf
 281         done
 282 }
 283
 284 buildaptftparchivedirectorystructure() {
 285         local DISTS="$(grep -i '^tree ' ftparchive.conf | cut -d'/' -f 2 | sed -e 's#".*##')"
 286         for DIST in $DISTS; do
 287                 local SECTIONS="$(grep -i -A 5 "dists/$DIST" ftparchive.conf | grep -i 'Sections' | cut -d'"' -f 2)"
 288                 for SECTION in $SECTIONS; do
 289                         local ARCHS="$(grep -A 5 "dists/$DIST" ftparchive.conf | grep Architectures | cut -d'"' -f 2 | sed -e 's#source##')"
 290                         for ARCH in $ARCHS; do
 291                                 mkdir -p dists/${DIST}/${SECTION}/binary-${ARCH}
 292                         done
 293                         mkdir -p dists/${DIST}/${SECTION}/source
 294                         mkdir -p dists/${DIST}/${SECTION}/i18n
 295                 done
 296         done
 297 }
 298
 299 buildaptarchivefromincoming() {
 300         msginfo "Build APT archive for ${CCMD}$0${CINFO} based on incoming packages…"
 301         cd aptarchive
 302         [ -e pool ] || ln -s ../incoming pool
 303         [ -e ftparchive.conf ] || createaptftparchiveconfig
 304         [ -e dists ] || buildaptftparchivedirectorystructure
 305         msgninfo "\tGenerate Packages, Sources and Contents files… "
 306         aptftparchive -qq generate ftparchive.conf
 307         msgdone "info"
 308         msgninfo "\tGenerate Release files… "
 309         for dir in $(find ./dists -mindepth 1 -maxdepth 1 -type d); do
 310                 aptftparchive -qq release $dir -o APT::FTPArchive::Release::Codename="$(echo "$dir" | cut -d'/' -f 3)" | sed -e '/0 Release$/ d' > $dir/Release # remove the self reference
 311         done
 312         cd - > /dev/null
 313         msgdone "info"
 314 }
 315
 316 buildaptarchivefromfiles() {
 317         msginfo "Build APT archive for ${CCMD}$0${CINFO} based on prebuild files…"
 318         cd aptarchive
 319         if [ -f Packages ]; then
 320                 msgninfo "\tPackages file… "
 321                 cat Packages | gzip > Packages.gz
 322                 cat Packages | bzip2 > Packages.bz2
 323                 cat Packages | lzma > Packages.lzma
 324                 msgdone "info"
 325         fi
 326         if [ -f Sources ]; then
 327                 msgninfo "\tSources file… "
 328                 cat Sources | gzip > Sources.gz
 329                 cat Sources | bzip2 > Sources.bz2
 330                 cat Sources | lzma > Sources.lzma
 331                 msgdone "info"
 332         fi
 333         msgninfo "\tRelease file… "
 334         aptftparchive -qq release . | sed -e '/0 Release$/ d' > Release # remove the self reference
 335         msgdone "info"
 336         cd ..
 337 }
 338
 339 setupdistsaptarchive() {
 340         local APTARCHIVE=$(readlink -f ./aptarchive)
 341         rm -f root/etc/apt/sources.list.d/apt-test-*-deb.list
 342         rm -f root/etc/apt/sources.list.d/apt-test-*-deb-src.list
 343         for DISTS in $(find ./aptarchive/dists/ -mindepth 1 -maxdepth 1 -type d | cut -d'/' -f 4); do
 344                 SECTIONS=$(find ./aptarchive/dists/${DISTS}/ -mindepth 1 -maxdepth 1 -type d | cut -d'/' -f 5 | tr '\n' ' ')
 345                 msgninfo "\tadd deb and deb-src sources.list lines for ${CCMD}${DISTS} ${SECTIONS}${CINFO}… "
 346                 echo "deb file://$APTARCHIVE $DISTS $SECTIONS" > rootdir/etc/apt/sources.list.d/apt-test-${DISTS}-deb.list
 347                 echo "deb-src file://$APTARCHIVE $DISTS $SECTIONS" > rootdir/etc/apt/sources.list.d/apt-test-${DISTS}-deb-src.list
 348                 msgdone "info"
 349         done
 350 }
 351
 352 setupflataptarchive() {
 353         local APTARCHIVE=$(readlink -f ./aptarchive)
 354         if [ -f ${APTARCHIVE}/Packages ]; then
 355                 msgninfo "\tadd deb sources.list line… "
 356                 echo "deb file://$APTARCHIVE /" > rootdir/etc/apt/sources.list.d/apt-test-archive-deb.list
 357                 msgdone "info"
 358         else
 359                 rm -f rootdir/etc/apt/sources.list.d/apt-test-archive-deb.list
 360         fi
 361         if [ -f ${APTARCHIVE}/Sources ]; then
 362                 msgninfo "\tadd deb-src sources.list line… "
 363                 echo "deb-src file://$APTARCHIVE /" > rootdir/etc/apt/sources.list.d/apt-test-archive-deb-src.list
 364                 msgdone "info"
 365         else
 366                 rm -f rootdir/etc/apt/sources.list.d/apt-test-archive-deb-src.list
 367         fi
 368 }
 369
 370 setupaptarchive() {
 371         buildaptarchive
 372         if [ -e aptarchive/dists ]; then
 373                 setupdistsaptarchive
 374         else
 375                 setupflataptarchive
 376         fi
 377         signreleasefiles
 378         msgninfo "\tSync APT's cache with the archive… "
 379         aptget update -qq
 380         msgdone "info"
 381 }
 382
 383 signreleasefiles() {
 384         local SIGNER="${1:-Joe Sixpack}"
 385         msgninfo "\tSign archive with $SIGNER key… "
 386         local SECKEYS=""
 387         for KEY in $(find keys/ -name '*.sec'); do
 388                 SECKEYS="$SECKEYS --secret-keyring $KEY"
 389         done
 390         local PUBKEYS=""
 391         for KEY in $(find keys/ -name '*.pub'); do
 392                 PUBKEYS="$PUBKEYS --keyring $KEY"
 393         done
 394         for RELEASE in $(find aptarchive/ -name Release); do
 395                 gpg --yes --no-default-keyring $SECKEYS $PUBKEYS --default-key "$SIGNER" -abs -o ${RELEASE}.gpg ${RELEASE}
 396         done
 397         msgdone "info"
 398 }
 399
 400 changetowebserver() {
 401         if which weborf > /dev/null; then
 402                 weborf -xb aptarchive/ 2>&1 > /dev/null &
 403                 CURRENTTRAP="kill $(ps | grep weborf | sed -e 's#^[ ]*##' | cut -d' ' -f 1); $CURRENTTRAP"
 404                 trap "$CURRENTTRAP" 0 HUP INT QUIT ILL ABRT FPE SEGV PIPE TERM
 405                 local APTARCHIVE="file://$(readlink -f ./aptarchive)"
 406                 for LIST in $(find rootdir/etc/apt/sources.list.d/ -name 'apt-test-*.list'); do
 407                         sed -i $LIST -e "s#$APTARCHIVE#http://localhost:8080/#"
 408                 done
 409                 return 0
 410         fi
 411         return 1
 412 }
 413
 414 checkdiff() {
 415         local DIFFTEXT="$($(which diff) -u $* | sed -e '/^---/ d' -e '/^+++/ d' -e '/^@@/ d')"
 416         if [ -n "$DIFFTEXT" ]; then
 417                 echo
 418                 echo "$DIFFTEXT"
 419                 return 1
 420         else
 421                 return 0
 422         fi
 423 }
 424
 425 testfileequal() {
 426         local FILE="$1"
 427         shift
 428         msgtest "Test for correctness of file" "$FILE"
 429         if [ -z "$*" ]; then
 430                 echo -n "" | checkdiff $FILE - && msgpass || msgfail
 431         else
 432                 echo "$*" | checkdiff $FILE - && msgpass || msgfail
 433         fi
 434 }
 435
 436 testequal() {
 437         local COMPAREFILE=$(mktemp)
 438         echo "$1" > $COMPAREFILE
 439         shift
 440         msgtest "Test for equality of" "$*"
 441         $* 2>&1 | checkdiff $COMPAREFILE - && msgpass || msgfail
 442         rm $COMPAREFILE
 443 }
 444
 445 testequalor2() {
 446         local COMPAREFILE1=$(mktemp)
 447         local COMPAREFILE2=$(mktemp)
 448         local COMPAREAGAINST=$(mktemp)
 449         echo "$1" > $COMPAREFILE1
 450         echo "$2" > $COMPAREFILE2
 451         shift 2
 452         msgtest "Test for equality OR of" "$*"
 453         $* 2>&1 1> $COMPAREAGAINST
 454         (checkdiff $COMPAREFILE1 $COMPAREAGAINST 1> /dev/null ||
 455                 checkdiff $COMPAREFILE2 $COMPAREAGAINST 1> /dev/null) && msgpass ||
 456                 ( echo "\n${CINFO}Diff against OR 1${CNORMAL}" "$(checkdiff $COMPAREFILE1 $COMPAREAGAINST)" \
 457                        "\n${CINFO}Diff against OR 2${CNORMAL}" "$(checkdiff $COMPAREFILE2 $COMPAREAGAINST)" &&
 458                   msgfail )
 459         rm $COMPAREFILE1 $COMPAREFILE2 $COMPAREAGAINST
 460 }
 461
 462 testshowvirtual() {
 463         local VIRTUAL="N: Can't select versions from package '$1' as it purely virtual"
 464         local PACKAGE="$1"
 465         shift
 466         while [ -n "$1" ]; do
 467                 VIRTUAL="${VIRTUAL}
 468 N: Can't select versions from package '$1' as it purely virtual"
 469                 PACKAGE="${PACKAGE} $1"
 470                 shift
 471         done
 472         msgtest "Test for virtual packages" "apt-cache show $PACKAGE"
 473         VIRTUAL="${VIRTUAL}
 474 N: No packages found"
 475         local COMPAREFILE=$(mktemp)
 476         local ARCH=$(dpkg-architecture -qDEB_HOST_ARCH_CPU)
 477         eval `apt-config shell ARCH APT::Architecture`
 478         echo "$VIRTUAL" | sed -e "s/:$ARCH//" -e 's/:all//' > $COMPAREFILE
 479         aptcache show $PACKAGE 2>&1 | checkdiff $COMPAREFILE - && msgpass || msgfail
 480         rm $COMPAREFILE
 481 }
 482
 483 testnopackage() {
 484         msgtest "Test for non-existent packages" "apt-cache show $*"
 485         local SHOWPKG="$(aptcache show $* 2>&1 | grep '^Package: ')"
 486         if [ -n "$SHOWPKG" ]; then
 487                 echo
 488                 echo "$SHOWPKG"
 489                 msgfail
 490                 return 1
 491         fi
 492         msgpass
 493 }