Merge pull request #2750 from Shell32-Natsu/rolebinding-test

Add test for role binding across namespace.

api/krusty/rolebindingacrossnamespace_test.go

@@ -0,0 +1,88 @@
+package krusty_test
+
+import (
+	"testing"
+
+	kusttest_test "sigs.k8s.io/kustomize/api/testutils/kusttest"
+)
+
+func TestRoleBindingAcrossNamespace(t *testing.T) {
+	th := kusttest_test.MakeEnhancedHarness(t)
+	defer th.Reset()
+
+	th.WriteK("/app", `
+resources:
+- resource.yaml
+nameSuffix: -ns2
+`)
+	th.WriteF("/app/resource.yaml", `
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: my-sa
+  namespace: ns1
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: my-role
+  namespace: ns2
+rules:
+  - apiGroups:
+      - '*'
+    resources:
+      - '*'
+    verbs:
+      - '*'
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: my-role-binding
+  namespace: ns2
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: my-role
+subjects:
+  - kind: ServiceAccount
+    name: my-sa
+    namespace: ns1
+`)
+
+	m := th.Run("/app", th.MakeDefaultOptions())
+	th.AssertActualEqualsExpected(m, `
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: my-sa-ns2
+  namespace: ns1
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: my-role-ns2
+  namespace: ns2
+rules:
+- apiGroups:
+  - '*'
+  resources:
+  - '*'
+  verbs:
+  - '*'
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: my-role-binding-ns2
+  namespace: ns2
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: my-role-ns2
+subjects:
+- kind: ServiceAccount
+  name: my-sa
+  namespace: ns1
+`)
+}