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summary: Check that removal of essential snaps does not work
# UC16 does not seed the snapd snap (yet)
systems: [-ubuntu-core-16-*]
execute: |
echo "Ensure snapd cannot be removed"
if snap remove --purge snapd; then
echo "The snapd snap should not be removable"
exit 1
fi
if os.query is-core18; then
base=core18
elif os.query is-core20; then
base=core20
fi
echo "Ensure $base cannot be removed"
if snap remove --purge "$base"; then
echo "The $base snap should not removable"
exit 1
fi
echo "Install a snap that requires core as the base"
snap install test-snapd-sh
snap list | MATCH '^core '
if snap remove --purge core; then
echo "core should not be removable because test-snapd-tools needs it"
exit 1
fi
echo "But core can be removed again once nothing on the system needs it"
snap remove --purge test-snapd-sh
snap remove --purge core
if snap list | MATCH '^core '; then
echo "core was not removed correctly"
exit 1
fi
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