Fix unittests (#434)

Unclear why it only appeared now and not earlier.

Co-authored-by: justusbunsi <sk.bunsenbrenner@gmail.com>
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/434
Reviewed-by: justusbunsi <justusbunsi@noreply.gitea.io>
Co-authored-by: pat-s <patrick.schratz@gmail.com>
Co-committed-by: pat-s <patrick.schratz@gmail.com>

unittests/statefulset/signing-disabled.yaml

@@ -17,9 +17,9 @@ tests:
   - it: skips gpg env in `init-directories` init container
     template: templates/gitea/statefulset.yaml
     set:
-      signing.enabled: true
+      signing.enabled: false
     asserts:
-      - contains:
+      - notContains:
           path: spec.template.spec.initContainers[0].env
           content:
             name: GNUPGHOME

unittests/statefulset/signing-enabled.yaml

@@ -42,6 +42,7 @@ tests:
     template: templates/gitea/statefulset.yaml
     set:
       signing.enabled: true
+      signing.existingSecret: "custom-gpg-secret"
     asserts:
       - contains:
           path: spec.template.spec.initContainers[0].env
@@ -52,6 +53,7 @@ tests:
     template: templates/gitea/statefulset.yaml
     set:
       signing.enabled: true
+      signing.existingSecret: "custom-gpg-secret"
     asserts:
       - contains:
           path: spec.template.spec.containers[0].env
@@ -63,6 +65,7 @@ tests:
     set:
       signing:
         enabled: true
+        existingSecret: "gitea-unittests-gpg-key"
     asserts:
       - contains:
           path: spec.template.spec.volumes