Merge pull request #30464 from CodethinkLabs/misc-integration-test-fixes

Misc integration test fixes

test/units/testsuite-15.sh

@@ -5,6 +5,11 @@ set -o pipefail
 
 # shellcheck source=test/units/test-control.sh
 . "$(dirname "$0")"/test-control.sh
+# shellcheck source=test/units/util.sh
+. "$(dirname "$0")"/util.sh
+
+maybe_mount_usr_overlay
+trap 'maybe_umount_usr_overlay' EXIT
 
 clear_unit() {
     local unit_name="${1:?}"

test/units/testsuite-26.sh

@@ -12,10 +12,13 @@ at_exit() {
         rm -fvr "/usr/lib/systemd/system/$UNIT_NAME" "/etc/systemd/system/$UNIT_NAME.d" "+4"
     fi
 
+    maybe_umount_usr_overlay
+
     rm -f /etc/init.d/issue-24990
     return 0
 }
 
+maybe_mount_usr_overlay
 trap at_exit EXIT
 
 # Create a simple unit file for testing

test/units/testsuite-31.sh

@@ -3,7 +3,7 @@
 set -eux
 set -o pipefail
 
-if journalctl -b -t systemd --grep '\.device: Changed plugged -> dead'; then
+if journalctl -b -t systemd --grep '(?<!loop.|diskseq-.)\.device: Changed plugged -> dead'; then
     exit 1
 fi
 

test/units/testsuite-60.sh

@@ -6,6 +6,9 @@ set -o pipefail
 # shellcheck source=test/units/util.sh
 . "$(dirname "$0")"/util.sh
 
+maybe_mount_usr_overlay
+trap 'maybe_umount_usr_overlay' EXIT
+
 teardown_test_dependencies() (
     set +eux
 

test/units/testsuite-65.sh

@@ -179,7 +179,7 @@ systemd-analyze security --json=short | jq
 if [[ ! -v ASAN_OPTIONS ]]; then
     # check that systemd-analyze cat-config paths work in a chroot
     mkdir -p /tmp/root
-    mount --bind / /tmp/root
+    mount --rbind / /tmp/root
     systemd-analyze cat-config systemd/system-preset >/tmp/out1
     chroot /tmp/root systemd-analyze cat-config systemd/system-preset >/tmp/out2
     diff /tmp/out{1,2}

test/units/testsuite-73.sh

@@ -9,6 +9,9 @@ set -o pipefail
 # shellcheck source=test/units/util.sh
 . "$(dirname "$0")"/util.sh
 
+maybe_mount_usr_overlay
+trap 'maybe_umount_usr_overlay' EXIT
+
 enable_debug() {
     mkdir -p /run/systemd/system/systemd-localed.service.d
     cat >>/run/systemd/system/systemd-localed.service.d/override.conf <<EOF

test/units/util.sh

@@ -216,3 +216,19 @@ kernel_supports_lsm() {
 
     return 1
 }
+
+MOUNTED_USR_OVERLAY=false
+
+maybe_mount_usr_overlay() {
+    if [[ ! -w /usr ]]; then
+        mkdir -p /tmp/usr-overlay/{upperdir,workdir}
+        mount -t overlay -o lowerdir=/usr,upperdir=/tmp/usr-overlay/upperdir,workdir=/tmp/usr-overlay/workdir overlay /usr
+	MOUNTED_USR_OVERLAY=true
+    fi
+}
+
+maybe_umount_usr_overlay() {
+    if "$MOUNTED_USR_OVERLAY"; then
+        umount -l /usr
+    fi
+}