fix: introduce unit tests for service monitor and metrics secret

Signed-off-by: Hitesh Nayak <hiteshnayak305@gmail.com>

unittests/metric-secret/metrics-secret-servicemonitor-disabled.yaml

@@ -0,0 +1,21 @@
+suite: Metrics secret template (gitea.metrics.serviceMonitor disabled)
+release:
+  name: gitea-unittests
+  namespace: testing
+templates:
+  - templates/gitea/metrics-secret.yaml
+tests:
+  - it: renders nothing if gitea.metrics.serviceMonitor disabled and gitea.config.metrics.TOKEN empty
+    set:
+      gitea.metrics.serviceMonitor.enabled: false
+      gitea.config.metrics.TOKEN: ""
+    asserts:
+      - hasDocuments:
+          count: 0
+  - it: renders nothing if gitea.metrics.serviceMonitor disabled and gitea.config.metrics.TOKEN not empty
+    set:
+      gitea.metrics.serviceMonitor.enabled: false
+      gitea.config.metrics.TOKEN: "test-token"
+    asserts:
+      - hasDocuments:
+          count: 0

unittests/metric-secret/metrics-secret-servicemonitor-enabled.yaml

@@ -0,0 +1,31 @@
+suite: Metrics secret template (gitea.metrics.serviceMonitor enabled)
+release:
+  name: gitea-unittests
+  namespace: testing
+templates:
+  - templates/gitea/metrics-secret.yaml
+tests:
+  - it: renders nothing if gitea.metrics.serviceMonitor enabled and gitea.config.metrics.TOKEN empty
+    set:
+      gitea.metrics.serviceMonitor.enabled: true
+      gitea.config.metrics.TOKEN: ""
+    asserts:
+      - hasDocuments:
+          count: 0
+  - it: renders Secret if gitea.metrics.serviceMonitor enabled and gitea.config.metrics.TOKEN not empty
+    set:
+      gitea.metrics.serviceMonitor.enabled: true
+      gitea.config.metrics.TOKEN: "test-token"
+    asserts:
+      - hasDocuments:
+          count: 1
+      - documentIndex: 0
+        containsDocument:
+          kind: Secret
+          apiVersion: v1
+          name: gitea-unittests-metrics-secret
+      - isNotNullOrEmpty:
+          path: metadata.labels
+      - equal:
+          path: data.token
+          value: "dGVzdC10b2tlbg=="

unittests/servicemonitor/servicemonitor-disabled.yaml

@@ -0,0 +1,21 @@
+suite: ServiceMonitor template (gitea.metrics.serviceMonitor disabled)
+release:
+  name: gitea-unittests
+  namespace: testing
+templates:
+  - templates/gitea/servicemonitor.yaml
+tests:
+  - it: renders nothing if gitea.metrics.serviceMonitor disabled and gitea.config.metrics.TOKEN empty
+    set:
+      gitea.metrics.serviceMonitor.enabled: false
+      gitea.config.metrics.TOKEN: ""
+    asserts:
+      - hasDocuments:
+          count: 0
+  - it: renders nothing if gitea.metrics.serviceMonitor disabled and gitea.config.metrics.TOKEN not empty
+    set:
+      gitea.metrics.serviceMonitor.enabled: false
+      gitea.config.metrics.TOKEN: "test-token"
+    asserts:
+      - hasDocuments:
+          count: 0

unittests/servicemonitor/servicemonitor-enabled.yaml

@@ -0,0 +1,49 @@
+suite: ServiceMonitor template (gitea.metrics.serviceMonitor enabled)
+release:
+  name: gitea-unittests
+  namespace: testing
+templates:
+  - templates/gitea/servicemonitor.yaml
+tests:
+  - it: renders unsecure ServiceMonitor if gitea.metrics.serviceMonitor enabled and gitea.config.metrics.TOKEN empty
+    set:
+      gitea.metrics.serviceMonitor.enabled: true
+      gitea.config.metrics.TOKEN: ""
+    asserts:
+      - hasDocuments:
+          count: 1
+      - documentIndex: 0
+        containsDocument:
+          kind: ServiceMonitor
+          apiVersion: monitoring.coreos.com/v1
+          name: gitea-unittests
+      - isNotNullOrEmpty:
+          path: metadata.labels
+      - equal:
+          path: spec.endpoints
+          value:
+            - port: http
+  - it: renders secure ServiceMonitor if gitea.metrics.serviceMonitor enabled and gitea.config.metrics.TOKEN not empty
+    set:
+      gitea.metrics.serviceMonitor.enabled: true
+      gitea.config.metrics.TOKEN: "test-token"
+    asserts:
+      - hasDocuments:
+          count: 1
+      - documentIndex: 0
+        containsDocument:
+          kind: ServiceMonitor
+          apiVersion: monitoring.coreos.com/v1
+          name: gitea-unittests
+      - isNotNullOrEmpty:
+          path: metadata.labels
+      - equal:
+          path: spec.endpoints
+          value:
+            - port: http
+              authorization:
+                type: Bearer
+                credentials:
+                  name: gitea-unittests-metrics-secret
+                  key: token
+                  optional: true