diff --git a/src/main/helm/README.md b/src/main/helm/README.md
index 06d30da3fd35dec702c4c204f85e504bbb8d3fb3..6b05f649edebe2d69c029f7c4a3f047621f8c937 100644
--- a/src/main/helm/README.md
+++ b/src/main/helm/README.md
@@ -4,7 +4,7 @@
 ## Unit-Tests
 Für Unit-Tests wird das helm [helm-unittest](https://github.com/quintush/helm-unittest) plugin benötigt. Die Unit-Tests liegen im Verzeichnis src/test/helm
 
-`helm unittest -f '../../test/helm/*.yaml' .`
+`helm unittest -f '../../test/helm/*.yaml' -v '../../test/unit-values.yaml' .`
 ## SyntaxCheck
 `helm template --debug -f test-values.yaml .`
 
diff --git a/src/main/helm/templates/ingress.yaml b/src/main/helm/templates/ingress.yaml
index 539de3adf5dfeed921ab92fac258f0925a093ddc..a9106a7e5d236f8aa2cf838637c17d2ebcf4fabb 100644
--- a/src/main/helm/templates/ingress.yaml
+++ b/src/main/helm/templates/ingress.yaml
@@ -26,7 +26,11 @@ apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
   annotations:
+    {{- if (.Values.ingress).use_staging_cert }}
+    cert-manager.io/cluster-issuer: letsencrypt-staging
+    {{- else }}
     cert-manager.io/cluster-issuer: letsencrypt-prod
+    {{- end }}
   name: {{ include "app.name" . }}
   namespace: {{ include "app.namespace" . }}
 spec:
diff --git a/src/test/helm/ingress-nginx-tests.yaml b/src/test/helm/ingress-nginx-tests.yaml
index 678556036744219a66b9a0b7354c24cf5f171ed5..12e29ef0911bb50506f180e647fb7db52153f6cb 100644
--- a/src/test/helm/ingress-nginx-tests.yaml
+++ b/src/test/helm/ingress-nginx-tests.yaml
@@ -46,3 +46,25 @@ tests:
           path: spec.ingressClassName
       - isNull:
           path: spec.tls[0].secretName
+  
+  - it: should use default letsencrypt-prod cluster-issuer
+    asserts:
+      - equal:
+          path: metadata.annotations.[cert-manager.io/cluster-issuer]
+          value: letsencrypt-prod
+
+  - it: should use letsencrypt-staging cluster-issuer
+    set:
+      ingress.use_staging_cert: true
+    asserts:
+      - equal:
+          path: metadata.annotations.[cert-manager.io/cluster-issuer]
+          value: letsencrypt-staging
+
+  - it: should use letsencrypt-prod cluster-issuer
+    set:
+      ingress.use_staging_cert: false
+    asserts:
+      - equal:
+          path: metadata.annotations.[cert-manager.io/cluster-issuer]
+          value: letsencrypt-prod