test(MeshLoadBalancingStrategy): add newly invalid case, adjust valid…

… case

Signed-off-by: Mike Beaumont <[email protected]>

pkg/plugins/policies/meshloadbalancingstrategy/api/v1alpha1/validator_test.go

@@ -425,6 +425,29 @@ to:
             - to:
                 type: AnyExcept
 
+`),
+		ErrorCases(
+			"invalid MeshGateway and to MeshService",
+			[]validators.Violation{{
+				Field:   "spec.to[0].targetRef.kind",
+				Message: "value is not supported, only Mesh is allowed if loadBalancer is set",
+			}},
+			`
+type: MeshLoadBalancingStrategy
+mesh: mesh-1
+name: route-1
+targetRef:
+  kind: MeshGateway
+  name: edge-gateway
+to:
+  - targetRef:
+      kind: MeshService
+      name: svc-1
+    default:
+      loadBalancer:
+        type: LeastRequest
+        leastRequest:
+          activeRequestBias: "1.3"
 `),
 	)
 
@@ -535,10 +558,6 @@ to:
     default:
       localityAwareness:
         disabled: true
-      loadBalancer:
-        type: LeastRequest
-        leastRequest:
-          activeRequestBias: "1.3"
 `),
 		XEntry(
 			"to MeshExternalService",