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test: Initial systemd-sysext tests
The follow-up commit will refactor some code in systemd-sysext, so add some tests to make sure that things didn't break. The tests will be later extended with cases for new features added.
This commit is contained in:
Krzesimir Nowak
parent
1f681bb6c0
commit
1212c80c71
@ -8,10 +8,7 @@ set -o pipefail
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export SYSTEMD_LOG_LEVEL=debug
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# shellcheck disable=SC2317
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cleanup() {(
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set +ex
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cleanup_image_dir() {
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if [ -z "${image_dir}" ]; then
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return
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fi
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@ -20,6 +17,39 @@ cleanup() {(
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umount "${image_dir}/app-nodistro"
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umount "${image_dir}/service-scoped-test"
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rm -rf "${image_dir}"
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}
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fake_roots_dir=/fake-roots
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cleanup_fake_rootfses() {
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local tries=10 e
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local -a lines fake_roots_mounts
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while [[ ${tries} -gt 0 ]]; do
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tries=$((tries - 1))
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mapfile -t lines < <(mount | awk '{ print $3 }')
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fake_roots_mounts=()
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for e in "${lines[@]}"; do
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if [[ ${e} = "${fake_roots_dir}"/* ]]; then
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fake_roots_mounts+=( "${e}" )
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fi
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done
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if [[ ${#fake_roots_mounts[@]} -eq 0 ]]; then
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break
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fi
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for e in "${fake_roots_mounts[@]}"; do
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umount "${e}"
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done
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done
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rm -rf "${fake_roots_dir}"
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}
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# shellcheck disable=SC2317
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cleanup() {(
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set +ex
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cleanup_image_dir
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cleanup_fake_rootfses
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)}
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udevadm control --log-level=debug
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@ -765,4 +795,248 @@ fi
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(! systemd-run -P -p RootImage="/this/should/definitely/not/exist.img" false)
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(! systemd-run -P -p ExtensionDirectories="/foo/bar /foo/baz" false)
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# general systemd-sysext tests
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shopt -s extglob
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die() {
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echo "${*}"
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exit 1
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}
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prep_root() {
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local r=${1}; shift
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local h=${1}; shift
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mkdir -p "${r}${h}" "${r}/usr/lib" "${r}/var/lib/extensions"
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}
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gen_os_release() {
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local r=${1}; shift
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{
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echo "ID=testtest"
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echo "VERSION=1.2.3"
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} >"${r}/usr/lib/os-release"
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}
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gen_test_ext_image() {
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local r=${1}; shift
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local h=${1}; shift
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local n d f
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n='test-extension'
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d="${r}/var/lib/extensions/${n}"
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f="${d}/usr/lib/extension-release.d/extension-release.${n}"
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mkdir -p "$(dirname "${f}")"
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echo "ID=_any" >"${f}"
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mkdir -p "${d}/${h}"
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touch "${d}${h}/preexisting-file-in-extension-image"
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}
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make_ro() {
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local r=${1}; shift
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local h=${1}; shift
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mount -o bind "${r}${h}" "${r}${h}"
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mount -o bind,remount,ro "${r}${h}"
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}
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prep_hierarchy() {
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local r=${1}; shift
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local h=${1}; shift
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touch "${r}${h}/preexisting-file-in-hierarchy"
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}
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prep_ro_hierarchy() {
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local r=${1}; shift
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local h=${1}; shift
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prep_hierarchy "${r}" "${h}"
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make_ro "${r}" "${h}"
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}
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# extra args:
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# "e" for checking for the preexisting file in extension
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# "h" for checking for the preexisting file in hierarchy
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check_usual_suspects() {
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local root=${1}; shift
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local hierarchy=${1}; shift
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local message=${1}; shift
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local arg
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# shellcheck disable=SC2034 # the variables below are used indirectly
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local e='' h=''
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for arg; do
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case ${arg} in
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e|h)
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local -n v=${arg}
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v=x
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unset -n v
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;;
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*)
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die "invalid arg to ${0}: ${arg@Q}"
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;;
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esac
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done
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# var name, file name
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local pairs=(
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e:preexisting-file-in-extension-image
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h:preexisting-file-in-hierarchy
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)
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local pair name file desc full_path
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for pair in "${pairs[@]}"; do
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name=${pair%%:*}
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file=${pair#*:}
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desc=${file//-/ }
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full_path="${root}${hierarchy}/${file}"
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local -n v=${name}
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if [[ -n ${v} ]]; then
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test -f "${full_path}" || {
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ls -la "$(dirname "${full_path}")"
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die "${desc} is missing ${message}"
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}
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else
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test ! -f "${full_path}" || {
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ls -la "$(dirname "${full_path}")"
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die "${desc} unexpectedly exists ${message}"
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}
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fi
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unset -n v
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done
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}
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check_usual_suspects_after_merge() {
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local r=${1}; shift
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local h=${1}; shift
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check_usual_suspects "${r}" "${h}" "after merge" "${@}"
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}
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check_usual_suspects_after_unmerge() {
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local r=${1}; shift
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local h=${1}; shift
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check_usual_suspects "${r}" "${h}" "after unmerge" "${@}"
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}
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#
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# simple case, read-only hierarchy
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#
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fake_root=${fake_roots_dir}/simple-read-only-with-read-only-hierarchy
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hierarchy=/usr
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prep_root "${fake_root}" "${hierarchy}"
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gen_os_release "${fake_root}"
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gen_test_ext_image "${fake_root}" "${hierarchy}"
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prep_ro_hierarchy "${fake_root}" "${hierarchy}"
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touch "${fake_root}${hierarchy}/should-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
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# run systemd-sysext
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" merge
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touch "${fake_root}${hierarchy}/should-still-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
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check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e h
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
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check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}" h
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touch "${fake_root}${hierarchy}/should-still-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only after unmerge"
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#
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# simple case, mutable hierarchy
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#
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fake_root=${fake_roots_dir}/simple-read-only-with-mutable-hierarchy
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hierarchy=/usr
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prep_root "${fake_root}" "${hierarchy}"
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gen_os_release "${fake_root}"
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gen_test_ext_image "${fake_root}" "${hierarchy}"
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prep_hierarchy "${fake_root}" "${hierarchy}"
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touch "${fake_root}${hierarchy}/should-succeed-on-mutable-fs" || die "${fake_root}${hierarchy} is not mutable"
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# run systemd-sysext
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" merge
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touch "${fake_root}${hierarchy}/should-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
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check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e h
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
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check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}" h
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touch "${fake_root}${hierarchy}/should-succeed-on-mutable-fs-again" || die "${fake_root}${hierarchy} is not mutable after unmerge"
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#
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# simple case, no hierarchy either
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#
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fake_root=${fake_roots_dir}/simple-read-only-with-missing-hierarchy
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hierarchy=/opt
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prep_root "${fake_root}" "${hierarchy}"
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rmdir "${fake_root}/${hierarchy}"
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gen_os_release "${fake_root}"
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gen_test_ext_image "${fake_root}" "${hierarchy}"
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# run systemd-sysext
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" merge
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touch "${fake_root}${hierarchy}/should-still-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
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check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
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check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}"
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#
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# simple case, an empty hierarchy
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#
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fake_root=${fake_roots_dir}/simple-read-only-with-empty-hierarchy
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hierarchy=/opt
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prep_root "${fake_root}" "${hierarchy}"
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gen_os_release "${fake_root}"
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gen_test_ext_image "${fake_root}" "${hierarchy}"
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make_ro "${fake_root}" "${hierarchy}"
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touch "${fake_root}${hierarchy}/should-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
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# run systemd-sysext
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" merge
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touch "${fake_root}${hierarchy}/should-still-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
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check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
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check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}"
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#
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# done
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#
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touch /testok
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