tests: spread test holding and unhold refreshes

Signed-off-by: Miguel Pires <miguel.pires@canonical.com>

tests/main/snap-refresh-hold/task.yaml

@@ -0,0 +1,75 @@
+summary: Check snap refresh hold and unhold
+
+prepare: |
+  snap install test-snapd-tools
+  snap install --devmode jq
+
+restore: |
+  snap refresh --unhold || true
+  snap refresh --unhold test-snapd-tools || true
+  snap remove --purge test-snapd-tools || true
+
+execute: |
+  reset() {
+    snap refresh --channel=latest/stable test-snapd-tools
+    snap refresh --unhold test-snapd-tools
+    snap refresh --unhold
+  }
+
+  echo "No snaps auto-refresh in an all-snaps hold"
+  snap refresh --hold=forever
+
+  systemctl stop snapd.{service,socket}
+  "$TESTSTOOLS"/snapd-state change-snap-channel test-snapd-tools edge
+  "$TESTSTOOLS"/snapd-state force-autorefresh
+  systemctl start snapd.{socket,service}
+
+  if retry -n 5 --quiet sh -c 'snap changes | tail -2 | grep "Done.*Auto-refresh"'; then
+    echo "expected 'snap refresh --hold' to prevent auto-refresh"
+    exit 1
+  fi
+
+  echo "Snap doesn't auto-refresh with a specific hold"
+  reset
+  snap refresh --hold test-snapd-tools
+
+  systemctl stop snapd.{service,socket}
+  "$TESTSTOOLS"/snapd-state change-snap-channel test-snapd-tools edge
+  "$TESTSTOOLS"/snapd-state force-autorefresh
+  systemctl start snapd.{socket,service}
+
+  if retry -n 5 --quiet sh -c 'snap changes | tail -2 | grep "Done.*Auto-refresh"'; then
+    echo "expected 'snap refresh --hold' to prevent auto-refresh"
+    exit 1
+  fi
+
+  echo "Snaps auto-refresh without holds"
+  reset
+  CHANGE_ID=$(snap changes | tail -2 | grep "Done.*Remove hold on refreshes of all snaps" | awk '{print $1}')
+
+  systemctl stop snapd.{service,socket}
+  "$TESTSTOOLS"/snapd-state change-snap-channel test-snapd-tools edge
+  "$TESTSTOOLS"/snapd-state force-autorefresh
+  systemctl start snapd.{socket,service}
+
+  "$TESTSTOOLS"/snapd-state wait-for-autorefresh "$CHANGE_ID"
+
+  echo "Held snaps don't refresh in general refreshes"
+  reset
+  snap refresh --hold=forever test-snapd-tools
+  snap refresh 2>&1 | MATCH "All snaps up to date."
+
+  echo "Held snaps are refreshed in specific refreshes"
+  reset
+  snap refresh --hold test-snapd-tools
+  snap refresh --channel=latest/edge test-snapd-tools 2>&1 | MATCH "test-snapd-tools .* refreshed"
+
+  echo "Generic refreshes ignore holds on all snaps"
+  reset
+  snap refresh --hold
+
+  systemctl stop snapd.{service,socket}
+  "$TESTSTOOLS"/snapd-state change-snap-channel test-snapd-tools edge
+  systemctl start snapd.{socket,service}
+
+  snap refresh 2>&1 | MATCH "test-snapd-tools .* refreshed"