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summary: Ensure that the uhid interface works.
details: |
The uhid interface allows accessing the UHID to create kernel hid devices
The test-snapd-uhid snap is able to create and destroy a device on /dev/uhid.
The test checks the snap is able to manage devices on /dev/uhid, the
interface is not connected by default and it can be connected and disconnected.
prepare: |
echo "Given the uhid snap is installed"
snap install test-snapd-uhid
execute: |
echo "The plug is not connected by default"
snap interfaces -i uhid | MATCH -- '^- +test-snapd-uhid:uhid'
echo "When the plug is connected"
snap connect test-snapd-uhid:uhid
echo "Exit when uhid is not supported, specially on cloud images"
if [ ! -d /dev/uhid ]; then
exit 0
fi
echo "Then the snap is able to create/destroy a device in /dev/uhid"
test-snapd-uhid.test-device
if [ "$(snap debug confinement)" = partial ]; then
exit 0
fi
echo "When the plug is disconnected"
snap disconnect test-snapd-uhid:uhid
echo "Then the snap is not able to create/destroy a device on /dev/uhid"
if test-snapd-uhid.test-device 2> call.error; then
echo "Expected permission error calling uhid with disconnected plug"
exit 1
fi
MATCH "Permission denied" < call.error
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