#!/bin/sh
set -e

TESTDIR=$(readlink -f $(dirname $0))
. $TESTDIR/framework
setupenvironment
configarchitecture 'amd64'

# the executed script would use the installed apt-config,
# which is outside of our control
msgtest 'Check that the installed apt-config supports' '--no-empty'
if apt-config dump --no-empty >/dev/null 2>&1; then
	msgpass
else
	msgskip
	exit 0
fi

CURRENTKERNEL="linux-image-$(uname -r)"
insertinstalledpackage "$CURRENTKERNEL" 'amd64' '1'
insertinstalledpackage 'linux-image-1.0.0-2-generic' 'amd64' '1.0.0-2'
insertinstalledpackage 'linux-image-100.0.0-1-generic' 'amd64' '100.0.0-1'
insertinstalledpackage 'linux-image-amd64' 'amd64' '100.0.0-1'
# ensure that the '.' is really a dot and not a wildcard
insertinstalledpackage 'linux-headers-1000000-1-generic' 'amd64' '100.0.0-1'

testsuccess aptmark auto "$CURRENTKERNEL" 'linux-image-1.0.0-2-generic' 'linux-image-100.0.0-1-generic' 'linux-headers-1000000-1-generic'

cat > ./fake-dpkg <<EOF
#!/bin/sh
exec $(aptconfig dump --no-empty --format='%v ' 'DPKG::options') "\$@"
EOF
chmod +x ./fake-dpkg
echo 'Dir::Bin::dpkg "./fake-dpkg";' > rootdir/etc/apt/apt.conf.d/99fakedpkg

# install fake-dpkg into it
catfail() {
	echo >&2
	echo >&2 '### List of protected kernels:'
	cat >&2 protected.list
	msgfail
}

testprotected() {
	rm -f rootdir/etc/apt/apt.conf.d/01autoremove-kernels protected.list

	testsuccess runapt sh ${TESTDIR}/../../debian/apt.auto-removal.sh "$@"

	msgtest 'Check kernel autoremoval protection list' 'is created'
	test -e rootdir/etc/apt/apt.conf.d/01autoremove-kernels && msgpass || msgfail

	msgtest 'Check kernel autoremoval protection list' 'can be dumped'
	aptconfig dump --no-empty --format '%v%n' 'APT::NeverAutoRemove' >protected.list 2>&1 && msgpass || catfail

	msgtest 'Check kernel autoremoval protection list' 'can be parsed'
	grep -q '^[A-Z]: ' protected.list && catfail || msgpass

	msgtest 'Check kernel autoremoval protection list includes' 'most recent kernel'
	grep -q '^\^linux-image-100\\\.0\\\.0-1-generic\$$' protected.list && msgpass || catfail

	msgtest 'Check kernel autoremoval protection list includes' 'running kernel'
	grep -q "^\\^linux-image-$(uname -r | sed -e 's#\.#\\\\.#g')\\\$\$" protected.list && msgpass || catfail
}

testequal "Reading package lists...
Building dependency tree...
Reading state information...
The following packages will be REMOVED:
   linux-headers-1000000-1-generic (100.0.0-1)
   linux-image-1.0.0-2-generic (1.0.0-2)
   linux-image-100.0.0-1-generic (100.0.0-1)
   $CURRENTKERNEL (1)
0 upgraded, 0 newly installed, 4 to remove and 0 not upgraded.
Remv linux-headers-1000000-1-generic [100.0.0-1]
Remv linux-image-1.0.0-2-generic [1.0.0-2]
Remv linux-image-100.0.0-1-generic [100.0.0-1]
Remv $CURRENTKERNEL [1]" aptget autoremove -sV

testprotected
msgtest 'Check kernel autoremoval protection list does not include' 'old kernel'
grep -q '^\^linux-image-1\\\.0\\\.0-2-generic\$$' protected.list && catfail || msgpass

testequal 'Reading package lists...
Building dependency tree...
Reading state information...
The following packages will be REMOVED:
  linux-headers-1000000-1-generic linux-image-1.0.0-2-generic
0 upgraded, 0 newly installed, 2 to remove and 0 not upgraded.
Remv linux-headers-1000000-1-generic [100.0.0-1]
Remv linux-image-1.0.0-2-generic [1.0.0-2]' aptget autoremove -s

testprotected 1.0.0-2-generic
msgtest 'Check kernel autoremoval protection list includes' 'installed kernel'
grep -q '^\^linux-image-1\\\.0\\\.0-2-generic\$$' protected.list && msgpass || catfail
testequal 'Reading package lists...
Building dependency tree...
Reading state information...
The following packages will be REMOVED:
  linux-headers-1000000-1-generic
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
Remv linux-headers-1000000-1-generic [100.0.0-1]' aptget autoremove -s