test(MeshHTTPRoute): add basic validation test

Signed-off-by: Mike Beaumont <mjboamail@gmail.com>

pkg/plugins/policies/meshhttproute/api/v1alpha1/v1alpha1_suite_test.go

@@ -0,0 +1,11 @@
+package v1alpha1_test
+
+import (
+	"testing"
+
+	"github.com/kumahq/kuma/pkg/test"
+)
+
+func TestPlugin(t *testing.T) {
+	test.RunSpecs(t, "MeshHTTPRoute")
+}

pkg/plugins/policies/meshhttproute/api/v1alpha1/validation_test.go

@@ -0,0 +1,41 @@
+package v1alpha1_test
+
+import (
+	. "github.com/onsi/ginkgo/v2"
+
+	"github.com/kumahq/kuma/pkg/core/validators"
+	api "github.com/kumahq/kuma/pkg/plugins/policies/meshhttproute/api/v1alpha1"
+
+	. "github.com/kumahq/kuma/pkg/test/resources"
+)
+
+var _ = Describe("validation", func() {
+	DescribeErrorCases(
+		api.NewMeshHTTPRouteResource,
+		ErrorCase("basic error",
+			validators.Violation{
+				Field:   `spec.targetRef.kind`,
+				Message: `value is not supported`,
+			}, `
+type: MeshHTTPRoute
+mesh: mesh-1
+name: route-1
+targetRef:
+  kind: BlahBlah
+  name: frontend
+to: []
+`),
+	)
+	DescribeValidCases(
+		api.NewMeshHTTPRouteResource,
+		Entry("accepts valid resource", `
+type: MeshHTTPRoute
+mesh: mesh-1
+name: route-1
+targetRef:
+  kind: MeshService
+  name: frontend
+to: []
+`),
+	)
+})