Zanzana: Role binding hooks (#114470)
* Zanzana: Role bindings hooks WIP * Empty hooks for role bindings * implement hooks for role bindings * add tests * apply review suggestions
This commit is contained in:
Alexander Zobnin
@@ -0,0 +1,448 @@
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package iam
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import (
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"context"
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"slices"
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"sync"
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"testing"
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"time"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"github.com/stretchr/testify/require"
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iamv0 "github.com/grafana/grafana/apps/iam/pkg/apis/iam/v0alpha1"
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"github.com/grafana/grafana/pkg/infra/log"
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v1 "github.com/grafana/grafana/pkg/services/authz/proto/v1"
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)
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func TestAfterRoleBindingCreate(t *testing.T) {
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var wg sync.WaitGroup
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b := &IdentityAccessManagementAPIBuilder{
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logger: log.NewNopLogger(),
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zTickets: make(chan bool, 1),
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}
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t.Run("should create zanzana entry for role binding", func(t *testing.T) {
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wg.Add(1)
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roleBinding := iamv0.RoleBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "binding-1",
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Namespace: "org-1",
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},
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Spec: iamv0.RoleBindingSpec{
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Subject: iamv0.RoleBindingspecSubject{
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Kind: "user",
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Name: "user-1",
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},
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RoleRefs: []iamv0.RoleBindingspecRoleRef{
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{
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Kind: "role",
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Name: "role-1",
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},
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},
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},
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}
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testRoleBinding := func(ctx context.Context, req *v1.MutateRequest) error {
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defer wg.Done()
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require.NotNil(t, req)
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require.NotNil(t, req.Operations)
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require.Len(t, req.Operations, 1)
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require.Equal(t, "org-1", req.Namespace)
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expectedOperation := &v1.MutateOperation{
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Operation: &v1.MutateOperation_CreateRoleBinding{
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CreateRoleBinding: &v1.CreateRoleBindingOperation{
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SubjectKind: "user",
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SubjectName: "user-1",
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RoleKind: "role",
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RoleName: "role-1",
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},
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},
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}
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actualCreate := req.Operations[0].Operation.(*v1.MutateOperation_CreateRoleBinding).CreateRoleBinding
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expectedCreate := expectedOperation.Operation.(*v1.MutateOperation_CreateRoleBinding).CreateRoleBinding
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require.Equal(t, expectedCreate.SubjectKind, actualCreate.SubjectKind)
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require.Equal(t, expectedCreate.SubjectName, actualCreate.SubjectName)
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require.Equal(t, expectedCreate.RoleKind, actualCreate.RoleKind)
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require.Equal(t, expectedCreate.RoleName, actualCreate.RoleName)
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return nil
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}
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b.zClient = &FakeZanzanaClient{mutateCallback: testRoleBinding}
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b.AfterRoleBindingCreate(&roleBinding, nil)
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wg.Wait()
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})
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t.Run("should not write to zanzana when zClient is nil", func(t *testing.T) {
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builder := &IdentityAccessManagementAPIBuilder{
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logger: log.NewNopLogger(),
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zTickets: make(chan bool, 1),
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zClient: nil,
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}
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roleBinding := iamv0.RoleBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "binding-3",
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Namespace: "org-3",
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},
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Spec: iamv0.RoleBindingSpec{
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Subject: iamv0.RoleBindingspecSubject{
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Kind: "user",
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Name: "user-3",
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},
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RoleRefs: []iamv0.RoleBindingspecRoleRef{
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{
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Kind: "role",
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Name: "role-3",
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},
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},
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},
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}
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// Should not panic or error when zClient is nil
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builder.AfterRoleBindingCreate(&roleBinding, nil)
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})
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}
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func TestBeginRoleBindingUpdate(t *testing.T) {
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var wg sync.WaitGroup
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b := &IdentityAccessManagementAPIBuilder{
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logger: log.NewNopLogger(),
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zTickets: make(chan bool, 1),
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}
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t.Run("should update zanzana entry when role binding changed", func(t *testing.T) {
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wg.Add(1)
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oldBinding := iamv0.RoleBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "binding-1",
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Namespace: "org-1",
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},
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Spec: iamv0.RoleBindingSpec{
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Subject: iamv0.RoleBindingspecSubject{
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Kind: "user",
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Name: "user-1",
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},
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RoleRefs: []iamv0.RoleBindingspecRoleRef{
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{
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Kind: "role",
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Name: "role-foo",
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},
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{
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Kind: "role",
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Name: "role-2",
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},
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},
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},
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}
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newBinding := iamv0.RoleBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "binding-1",
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Namespace: "org-1",
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},
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Spec: iamv0.RoleBindingSpec{
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Subject: iamv0.RoleBindingspecSubject{
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Kind: "user",
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Name: "user-1",
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},
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RoleRefs: []iamv0.RoleBindingspecRoleRef{
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{
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Kind: "role",
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Name: "role-bar",
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},
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},
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},
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}
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testRoleBindingUpdate := func(ctx context.Context, req *v1.MutateRequest) error {
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defer wg.Done()
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require.NotNil(t, req)
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require.Equal(t, "org-1", req.Namespace)
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require.NotNil(t, req.Operations)
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require.Len(t, req.Operations, 3)
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// Should write new binding and delete old one
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require.True(t, containsOperation(req.Operations, &v1.MutateOperation{
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Operation: &v1.MutateOperation_DeleteRoleBinding{
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DeleteRoleBinding: &v1.DeleteRoleBindingOperation{
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SubjectKind: "user",
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SubjectName: "user-1",
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RoleKind: "role",
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RoleName: "role-foo",
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},
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},
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}))
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require.True(t, containsOperation(req.Operations, &v1.MutateOperation{
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Operation: &v1.MutateOperation_CreateRoleBinding{
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CreateRoleBinding: &v1.CreateRoleBindingOperation{
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SubjectKind: "user",
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SubjectName: "user-1",
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RoleKind: "role",
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RoleName: "role-bar",
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},
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},
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}))
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return nil
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}
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b.zClient = &FakeZanzanaClient{mutateCallback: testRoleBindingUpdate}
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finishFunc, err := b.BeginRoleBindingUpdate(context.Background(), &newBinding, &oldBinding, nil)
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require.NoError(t, err)
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require.NotNil(t, finishFunc)
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finishFunc(context.Background(), true)
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wg.Wait()
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})
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t.Run("should return nil finish func when bindings are identical", func(t *testing.T) {
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oldBinding := iamv0.RoleBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "binding-2",
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Namespace: "org-2",
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},
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Spec: iamv0.RoleBindingSpec{
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Subject: iamv0.RoleBindingspecSubject{
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Kind: "user",
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Name: "user-1",
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},
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RoleRefs: []iamv0.RoleBindingspecRoleRef{
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{
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Kind: "role",
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Name: "role-1",
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},
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},
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},
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}
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newBinding := iamv0.RoleBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "binding-2",
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Namespace: "org-2",
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},
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Spec: iamv0.RoleBindingSpec{
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Subject: iamv0.RoleBindingspecSubject{
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Kind: "user",
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Name: "user-1",
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},
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RoleRefs: []iamv0.RoleBindingspecRoleRef{
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{
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Kind: "role",
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Name: "role-1",
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},
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},
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},
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}
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writeCalled := false
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testNoWriteOnNoChange := func(ctx context.Context, req *v1.MutateRequest) error {
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writeCalled = true
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require.Fail(t, "Write should not be called when bindings are identical")
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return nil
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}
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b.zClient = &FakeZanzanaClient{mutateCallback: testNoWriteOnNoChange}
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finishFunc, err := b.BeginRoleBindingUpdate(context.Background(), &newBinding, &oldBinding, nil)
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require.NoError(t, err)
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require.Nil(t, finishFunc) // Should return nil when bindings are identical
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// Verify write was never called
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time.Sleep(100 * time.Millisecond)
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require.False(t, writeCalled, "Write callback should not be called when bindings are identical")
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})
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t.Run("should return nil finish func when new binding has empty subject name", func(t *testing.T) {
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oldBinding := iamv0.RoleBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "binding-8",
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Namespace: "org-8",
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},
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Spec: iamv0.RoleBindingSpec{
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Subject: iamv0.RoleBindingspecSubject{
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Kind: "user",
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Name: "user-1",
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},
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RoleRefs: []iamv0.RoleBindingspecRoleRef{
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{
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Kind: "role",
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Name: "role-1",
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},
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},
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},
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}
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newBinding := iamv0.RoleBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "binding-8",
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Namespace: "org-8",
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},
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Spec: iamv0.RoleBindingSpec{
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Subject: iamv0.RoleBindingspecSubject{
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Kind: "",
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Name: "", // Empty name - should cause early return
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},
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RoleRefs: []iamv0.RoleBindingspecRoleRef{
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{
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Kind: "role",
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Name: "role-1",
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},
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},
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},
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}
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writeCalled := false
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testNoWriteOnInvalidBinding := func(ctx context.Context, req *v1.MutateRequest) error {
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writeCalled = true
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require.Fail(t, "Write should not be called when new binding has empty subject name")
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return nil
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}
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b.zClient = &FakeZanzanaClient{mutateCallback: testNoWriteOnInvalidBinding}
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finishFunc, err := b.BeginRoleBindingUpdate(context.Background(), &newBinding, &oldBinding, nil)
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require.NoError(t, err)
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require.Nil(t, finishFunc) // Should return nil when new binding has empty subject name
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// Verify write was never called
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time.Sleep(100 * time.Millisecond)
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require.False(t, writeCalled, "Write callback should not be called when new binding has empty subject name")
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})
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}
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func TestAfterRoleBindingDelete(t *testing.T) {
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var wg sync.WaitGroup
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b := &IdentityAccessManagementAPIBuilder{
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logger: log.NewNopLogger(),
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zTickets: make(chan bool, 1),
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}
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t.Run("should delete zanzana entry for team binding with member permission", func(t *testing.T) {
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wg.Add(1)
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roleBinding := iamv0.RoleBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "binding-1",
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Namespace: "org-1",
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},
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Spec: iamv0.RoleBindingSpec{
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Subject: iamv0.RoleBindingspecSubject{
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Kind: "user",
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Name: "user-1",
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},
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RoleRefs: []iamv0.RoleBindingspecRoleRef{
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{
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Kind: "role",
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Name: "role-1",
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},
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{
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Kind: "role",
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Name: "role-2",
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},
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},
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},
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}
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testRoleBindingDelete := func(ctx context.Context, req *v1.MutateRequest) error {
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defer wg.Done()
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require.NotNil(t, req)
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require.Equal(t, "org-1", req.Namespace)
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// Should have deletes but no writes
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require.NotNil(t, req.Operations)
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require.Len(t, req.Operations, 2)
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require.True(t, containsOperation(req.Operations, &v1.MutateOperation{
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Operation: &v1.MutateOperation_DeleteRoleBinding{
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DeleteRoleBinding: &v1.DeleteRoleBindingOperation{
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SubjectKind: "user",
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SubjectName: "user-1",
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RoleKind: "role",
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RoleName: "role-1",
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},
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},
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}))
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require.True(t, containsOperation(req.Operations, &v1.MutateOperation{
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Operation: &v1.MutateOperation_DeleteRoleBinding{
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DeleteRoleBinding: &v1.DeleteRoleBindingOperation{
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SubjectKind: "user",
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SubjectName: "user-1",
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RoleKind: "role",
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RoleName: "role-2",
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},
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},
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}))
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return nil
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}
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b.zClient = &FakeZanzanaClient{mutateCallback: testRoleBindingDelete}
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b.AfterRoleBindingDelete(&roleBinding, nil)
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wg.Wait()
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})
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t.Run("should not delete from zanzana when zClient is nil", func(t *testing.T) {
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builder := &IdentityAccessManagementAPIBuilder{
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logger: log.NewNopLogger(),
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zTickets: make(chan bool, 1),
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zClient: nil,
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}
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roleBinding := iamv0.RoleBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "binding-3",
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Namespace: "org-3",
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},
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Spec: iamv0.RoleBindingSpec{
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Subject: iamv0.RoleBindingspecSubject{
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Kind: "user",
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Name: "user-3",
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},
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RoleRefs: []iamv0.RoleBindingspecRoleRef{
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{
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Kind: "role",
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Name: "role-3",
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},
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},
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},
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}
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// Should not panic or error when zClient is nil
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builder.AfterRoleBindingDelete(&roleBinding, nil)
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})
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}
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func containsOperation(operations []*v1.MutateOperation, operation *v1.MutateOperation) bool {
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return slices.ContainsFunc(operations, func(o *v1.MutateOperation) bool {
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switch operation.Operation.(type) {
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case *v1.MutateOperation_DeleteRoleBinding:
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deleteOperation := operation.Operation.(*v1.MutateOperation_DeleteRoleBinding)
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deleteO, ok := o.Operation.(*v1.MutateOperation_DeleteRoleBinding)
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if !ok {
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return false
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}
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return deleteO.DeleteRoleBinding.SubjectKind == deleteOperation.DeleteRoleBinding.SubjectKind &&
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deleteO.DeleteRoleBinding.SubjectName == deleteOperation.DeleteRoleBinding.SubjectName &&
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deleteO.DeleteRoleBinding.RoleKind == deleteOperation.DeleteRoleBinding.RoleKind &&
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deleteO.DeleteRoleBinding.RoleName == deleteOperation.DeleteRoleBinding.RoleName
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case *v1.MutateOperation_CreateRoleBinding:
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createOperation := operation.Operation.(*v1.MutateOperation_CreateRoleBinding)
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createO, ok := o.Operation.(*v1.MutateOperation_CreateRoleBinding)
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if !ok {
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return false
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}
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return createO.CreateRoleBinding.SubjectKind == createOperation.CreateRoleBinding.SubjectKind &&
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createO.CreateRoleBinding.SubjectName == createOperation.CreateRoleBinding.SubjectName &&
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createO.CreateRoleBinding.RoleKind == createOperation.CreateRoleBinding.RoleKind &&
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createO.CreateRoleBinding.RoleName == createOperation.CreateRoleBinding.RoleName
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}
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return false
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})
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}
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