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|
summary: Create ubuntu core image, install snapd and test hotplug feature
details: |
Check that when a device is plugged the hotplug slot is present, and when it
is unplugged, the slot is no longer present. Also validates a snap can be
connected to the device and serial-port permissions of the snap are correct.
systems: [ubuntu-1*]
prepare: |
snap pack "$TESTSLIB"/snaps/serial-port-hotplug
remote.push serial-port-hotplug_1.0_all.snap
restore: |
rm -f /tmp/serialport{0,1}
debug: |
remote.exec "snap connections --all" || true
remote.exec "snap list" || true
remote.exec "dmesg" || true
remote.exec 'sudo cat /var/lib/snapd/state.json' | gojq -r '.data["hotplug-slots"]' || true
execute: |
#shellcheck source=tests/lib/nested.sh
. "$TESTSLIB/nested.sh"
#shellcheck source=tests/lib/hotplug.sh
. "$TESTSLIB/hotplug.sh"
if [ "$NESTED_BUILD_SNAPD_FROM_CURRENT" != "true" ] && [ "$NESTED_CORE_REFRESH_CHANNEL" != "$NESTED_CORE_CHANNEL" ]; then
echo "Refresh core snap to desired channel"
nested_refresh_to_new_core "$NESTED_CORE_REFRESH_CHANNEL"
fi
if remote.exec "udevadm info -e" | MATCH "ID_MODEL=QEMU_USB_SERIAL"; then
echo "USB serial already registered, exiting..."
exit 1
fi
echo "Enabling hotplug"
remote.exec "sudo snap set core experimental.hotplug=true"
echo "Plugging the device"
hotplug_add_dev1
# precondition checks to make sure qemu setup is correct
remote.exec "retry --wait 1 -n 5 sh -c 'udevadm info -e | MATCH ID_MODEL=QEMU_USB_SERIAL'"
remote.exec "ls /dev/tty*" | MATCH "ttyUSB0"
echo "Checking that qemuusbserial hotplug slot is present"
check_slot_present qemuusbserial
check_slot_not_gone qemuusbserial
check_slot_device_path qemuusbserial "/dev/ttyUSB0"
echo "Unplugging the device with no connections on the slot"
hotplug_del_dev1
# precondition check to make sure qemu event was triggered correctly
remote.exec "retry --wait 1 -n 5 sh -c 'udevadm info -e | NOMATCH ID_MODEL=QEMU_USB_SERIAL'"
if remote.exec "udevadm info -e" | MATCH "ID_MODEL=QEMU_USB_SERIAL"; then
echo "USB serial should not be registered anymore, exiting..."
exit 1
fi
echo "Checking that hotplug slot is no longer present"
check_slot_not_present qemuusbserial
check_slot_not_present_in_state qemuusbserial
echo "Plugging the device back"
hotplug_add_dev1
echo "Checking that qemuusbserial hotplug slot is present again"
check_slot_present qemuusbserial
echo "Installing test snap with serial port plug"
remote.exec "sudo snap install --dangerous serial-port-hotplug_1.0_all.snap"
echo "Connecting hotplug slot of the first device"
remote.exec "sudo snap connect serial-port-hotplug:serial-port :qemuusbserial"
check_slot_connected qemuusbserial
echo "Verifying serial-port permissions of the snap"
verify_apparmor_profile "/dev/ttyUSB0"
echo "Unplugging the device"
hotplug_del_dev1
echo "Checking that qemuusbserial hotplug slot is no longer present, but is remembered"
check_slot_not_present qemuusbserial
check_slot_gone qemuusbserial
echo "Plugging device back, checking that the slot and connection are restored"
hotplug_add_dev1
check_slot_connected qemuusbserial
check_slot_not_gone qemuusbserial
echo "Unplugging the device again"
hotplug_del_dev1
echo "Checking that qemuusbserial hotplug slot is not present, but is still remembered"
check_slot_not_present qemuusbserial
check_slot_gone qemuusbserial
echo "Plugging second device creates a slot with new name and it's expected on /dev/ttyUSB0"
hotplug_add_dev2
check_slot_present qemuusbserial-1
check_slot_not_gone qemuusbserial-1
check_slot_device_path qemuusbserial-1 "/dev/ttyUSB0"
echo "Plugging first device back while second device is present, checking that connection is restored"
hotplug_add_dev1
check_slot_connected qemuusbserial
check_slot_not_gone qemuusbserial
echo "Verifying serial-port permissions of the snap, the first device is now expected on ttyUSB1"
check_slot_device_path qemuusbserial "/dev/ttyUSB1"
verify_apparmor_profile "/dev/ttyUSB1"
echo "Restarting snapd should restore both hotplug slots since devices are still present"
remote.exec "sudo systemctl stop snapd.service snapd.socket"
remote.exec "sudo systemctl start snapd.service snapd.socket"
check_slot_connected qemuusbserial
check_slot_not_gone qemuusbserial
check_slot_present qemuusbserial-1
echo "Unplugging first device while snapd is stopped and then starting snapd remembers the slot internally due to connection"
remote.exec "sudo systemctl stop snapd.service snapd.socket"
hotplug_del_dev1
remote.exec "sudo systemctl start snapd.service snapd.socket"
check_slot_not_present qemuusbserial
check_slot_gone qemuusbserial
echo "Plugging first device back restores the slot and connection"
hotplug_add_dev1
check_slot_connected qemuusbserial
check_slot_not_gone qemuusbserial
echo "Disconnecting first slot and then unplugging the device removes the slot completely"
# manual snap disconnect doesn't implement retry and errors out if there are conflicting changes, so wait for hotplug changes to complete
wait_for_all_changes
remote.exec "sudo snap disconnect serial-port-hotplug:serial-port :qemuusbserial"
check_slot_present qemuusbserial
hotplug_del_dev1
check_slot_not_present qemuusbserial
check_slot_not_present_in_state qemuusbserial
echo "Unplugging second device removes the slot completely"
hotplug_del_dev2
check_slot_not_present qemuusbserial-1
check_slot_not_present_in_state qemuusbserial-1
echo "Plugging device back creates the slot again"
hotplug_add_dev1
check_slot_present qemuusbserial
check_slot_not_gone qemuusbserial
check_slot_device_path qemuusbserial "/dev/ttyUSB0"
echo "Connecting hotplug slot of the first device again"
remote.exec "sudo snap connect serial-port-hotplug:serial-port :qemuusbserial"
check_slot_connected qemuusbserial
echo "Hotplug slot stays after removing the snap"
remote.exec "sudo snap remove serial-port-hotplug"
check_slot_present qemuusbserial
check_slot_not_gone qemuusbserial
|
