Chart: Implement ServiceMonitor limits. (#12251)

charts/ingress-nginx/tests/controller-servicemonitor_test.yaml

@@ -27,3 +27,53 @@ tests:
           path: metadata.annotations
           value:
             my-little-annotation: test-value
+
+  - it: should create a ServiceMonitor with `labelLimit` if `controller.metrics.serviceMonitor.labelLimit` is set
+    set:
+      controller.metrics.enabled: true
+      controller.metrics.serviceMonitor.enabled: true
+      controller.metrics.serviceMonitor.labelLimit: 20
+    asserts:
+      - equal:
+          path: spec.labelLimit
+          value: 20
+
+  - it: should create a ServiceMonitor with `labelNameLengthLimit` if `controller.metrics.serviceMonitor.labelNameLengthLimit` is set
+    set:
+      controller.metrics.enabled: true
+      controller.metrics.serviceMonitor.enabled: true
+      controller.metrics.serviceMonitor.labelNameLengthLimit: 50
+    asserts:
+      - equal:
+          path: spec.labelNameLengthLimit
+          value: 50
+
+  - it: should create a ServiceMonitor with `labelValueLengthLimit` if `controller.metrics.serviceMonitor.labelValueLengthLimit` is set
+    set:
+      controller.metrics.enabled: true
+      controller.metrics.serviceMonitor.enabled: true
+      controller.metrics.serviceMonitor.labelValueLengthLimit: 50
+    asserts:
+      - equal:
+          path: spec.labelValueLengthLimit
+          value: 50
+
+  - it: should create a ServiceMonitor with `sampleLimit` if `controller.metrics.serviceMonitor.sampleLimit` is set
+    set:
+      controller.metrics.enabled: true
+      controller.metrics.serviceMonitor.enabled: true
+      controller.metrics.serviceMonitor.sampleLimit: 5000
+    asserts:
+      - equal:
+          path: spec.sampleLimit
+          value: 5000
+
+  - it: should create a ServiceMonitor with `targetLimit` if `controller.metrics.serviceMonitor.targetLimit` is set
+    set:
+      controller.metrics.enabled: true
+      controller.metrics.serviceMonitor.enabled: true
+      controller.metrics.serviceMonitor.targetLimit: 100
+    asserts:
+      - equal:
+          path: spec.targetLimit
+          value: 100