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summary: Ensure that old experimental flag configs are hidden
details: |
Check that experimental flag configs that used to exist but now
are out of experimental are hidden unless specifically referenced
and their values will be retained to ensure it works as before in
case of revert to previous snapd version.
prepare: |
snap install --devmode jq
restore: |
snap remove jq
execute: |
echo "Check that users cannot set unsupported experimental features"
snap set core experimental.old-flag=true 2>&1 | MATCH "unsupported system option"
snap get core experimental.old-flag | NOMATCH "true"
# Stop snapd while editing state.json manually
systemctl stop snapd.service snapd.socket
echo "Force setting the unsupported experimental.old-flag"
# This simulates the situation where an experimental feature got out
# of experimental after a snapd refresh and now is an unsupported config
jq '.data.config.core.experimental += {"old-flag": true}' /var/lib/snapd/state.json > state.json
mv state.json /var/lib/snapd/state.json
echo "Check that experimental.old-flag is persisted in state.json"
jq '.data.config.core.experimental."old-flag"' /var/lib/snapd/state.json | MATCH "true"
systemctl start snapd.service snapd.socket
echo "Old experimental flags are hidden in generic queries"
snap get core experimental | NOMATCH "old-flag"
echo "But not removed for exact queries"
snap get core experimental.old-flag | MATCH "true"
echo "Also, old flag is not removed from state in case of a revert"
jq '.data.config.core.experimental."old-flag"' /var/lib/snapd/state.json | MATCH "true"
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