feat(ci): run Helm unittests

.github/workflows/chart-lint.yml

@@ -16,16 +16,19 @@ jobs:
           fetch-depth: 0
 
       - name: Set up Helm
-        uses: azure/setup-helm@v1
+        uses: azure/setup-helm@v3
         with:
-          version: v3.9.3
+          version: v3.11.3
 
-      - name: Add Helm repos
+      - name: Update Helm dependencies
         run: |
           cd charts/managed-identity-wallet
-          helm repo add bitnami https://charts.bitnami.com/bitnami
           helm dependency update
 
+      - name: Install Helm unittest plugin
+        run: |
+          helm plugin install https://github.com/helm-unittest/helm-unittest.git
+
       # Setup python as a prerequisite for chart linting 
       - uses: actions/setup-python@v2
         with:
@@ -34,17 +37,24 @@ jobs:
       - name: Set up chart-testing
         uses: helm/[email protected]
 
+      - name: Install Task
+        uses: arduino/setup-task@v1
+
       - name: Run chart-testing (list-changed)
         id: list-changed
         run: |
           changed=$(ct list-changed --target-branch ${{ github.event.repository.default_branch }})
           if [[ -n "$changed" ]]; then
             echo "::set-output name=changed::true"
           fi
+
       # run chart linting 
       - name: Run chart-testing (lint)
         run: ct lint --target-branch ${{ github.event.repository.default_branch }} --config charts/chart-testing-config.yaml
 
+      - name: Run Helm unittests
+        run: task helm:unittest
+
       # Preparing a kind cluster to install and test charts on
       - name: Create kind cluster
         uses: helm/[email protected]