failed precheck

.github/workflows/ci.yaml

@@ -3,7 +3,7 @@
 name: Tests
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}-2
+  group: ${{ github.workflow }}-${{ github.ref }}-precheckfail
   cancel-in-progress: true
 
 on:
@@ -75,7 +75,7 @@ jobs:
       - build
     uses: canonical/data-platform-workflows/.github/workflows/[email protected]
     with:
-      channel: 8.0/edge/test-refresh-v3-incompat
+      channel: 8.0/edge/test-refresh-v3-precheckfail
       artifact-prefix: ${{ needs.build.outputs.artifact-prefix }}
       create-github-release: false
     secrets:

src/kubernetes_charm.py

@@ -37,7 +37,7 @@
 class RouterRefresh(charm_refresh.CharmSpecific):
     @staticmethod
     def run_pre_refresh_checks_after_1_unit_refreshed() -> None:
-        pass
+        raise charm_refresh.PrecheckFailed("Backup in progress")
 
     @classmethod
     def is_compatible(