#!/bin/sh
set -e

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

# 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

# install fake-dpkg into it
cat > ./fake-dpkg <<EOF
#!/bin/sh
set -e
if [ "\$1" = "-l" ]; then
    echo "ii  linux-image-1.0.0-2-generic  1.0.0-2  amd64"
    echo "ii  linux-image-\$(uname -r)  not-used  amd64"
    echo "ii linux-image-100.0.0-1-generic  100.0.0.1-1  amd64"
else
    dpkg "\$@"
fi
EOF
chmod +x ./fake-dpkg
echo 'Dir::Bin::dpkg "./fake-dpkg";' > rootdir/etc/apt/apt.conf.d/99fakedpkg

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)\\\$\$" protected.list && msgpass || catfail
}

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

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