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https://github.com/k3s-io/kubernetes.git
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Move GuaranteedUpdateChecksData test to generic package
This commit is contained in:
Wojciech Tyczyński
parent
5344bc5e1b
commit
afc5ded839
@ -174,65 +174,7 @@ func TestGuaranteedUpdateWithTTL(t *testing.T) {
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func TestGuaranteedUpdateChecksStoredData(t *testing.T) {
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ctx, store, _ := testSetup(t)
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input := &example.Pod{ObjectMeta: metav1.ObjectMeta{Name: "foo"}}
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key := "/somekey"
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// serialize input into etcd with data that would be normalized by a write - in this case, leading
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// and trailing whitespace
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codec := codecs.LegacyCodec(examplev1.SchemeGroupVersion)
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data, err := runtime.Encode(codec, input)
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if err != nil {
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t.Fatal(err)
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}
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resp, err := store.client.Put(ctx, key, "test! "+string(data)+" ")
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if err != nil {
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t.Fatal(err)
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}
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// this update should write the canonical value to etcd because the new serialization differs
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// from the stored serialization
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input.ResourceVersion = strconv.FormatInt(resp.Header.Revision, 10)
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out := &example.Pod{}
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err = store.GuaranteedUpdate(ctx, key, out, true, nil,
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func(_ runtime.Object, _ storage.ResponseMeta) (runtime.Object, *uint64, error) {
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return input, nil, nil
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}, input)
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if err != nil {
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t.Fatalf("Update failed: %v", err)
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}
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if out.ResourceVersion == strconv.FormatInt(resp.Header.Revision, 10) {
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t.Errorf("guaranteed update should have updated the serialized data, got %#v", out)
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}
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lastVersion := out.ResourceVersion
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// this update should not write to etcd because the input matches the stored data
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input = out
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out = &example.Pod{}
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err = store.GuaranteedUpdate(ctx, key, out, true, nil,
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func(_ runtime.Object, _ storage.ResponseMeta) (runtime.Object, *uint64, error) {
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return input, nil, nil
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}, input)
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if err != nil {
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t.Fatalf("Update failed: %v", err)
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}
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if out.ResourceVersion != lastVersion {
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t.Errorf("guaranteed update should have short-circuited write, got %#v", out)
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}
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store.transformer = storagetesting.NewPrefixTransformer([]byte(defaultTestPrefix), true)
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// this update should write to etcd because the transformer reported stale
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err = store.GuaranteedUpdate(ctx, key, out, true, nil,
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func(_ runtime.Object, _ storage.ResponseMeta) (runtime.Object, *uint64, error) {
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return input, nil, nil
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}, input)
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if err != nil {
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t.Fatalf("Update failed: %v", err)
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}
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if out.ResourceVersion == lastVersion {
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t.Errorf("guaranteed update should have written to etcd when transformer reported stale, got %#v", out)
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}
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storagetesting.RunTestGuaranteedUpdateChecksStoredData(ctx, t, &storeWithPrefixTransformer{store})
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}
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func TestGuaranteedUpdateWithConflict(t *testing.T) {
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@ -247,78 +189,7 @@ func TestGuaranteedUpdateWithSuggestionAndConflict(t *testing.T) {
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func TestTransformationFailure(t *testing.T) {
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ctx, store, _ := testSetup(t)
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preset := []struct {
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key string
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obj *example.Pod
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storedObj *example.Pod
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}{{
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key: "/one-level/test",
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obj: &example.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "bar"},
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Spec: storagetesting.DeepEqualSafePodSpec(),
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},
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}, {
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key: "/two-level/1/test",
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obj: &example.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "baz"},
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Spec: storagetesting.DeepEqualSafePodSpec(),
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},
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}}
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for i, ps := range preset[:1] {
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preset[i].storedObj = &example.Pod{}
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err := store.Create(ctx, ps.key, ps.obj, preset[:1][i].storedObj, 0)
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if err != nil {
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t.Fatalf("Set failed: %v", err)
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}
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}
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// create a second resource with an invalid prefix
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oldTransformer := store.transformer
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store.transformer = storagetesting.NewPrefixTransformer([]byte("otherprefix!"), false)
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for i, ps := range preset[1:] {
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preset[1:][i].storedObj = &example.Pod{}
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err := store.Create(ctx, ps.key, ps.obj, preset[1:][i].storedObj, 0)
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if err != nil {
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t.Fatalf("Set failed: %v", err)
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}
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}
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store.transformer = oldTransformer
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// List should fail
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var got example.PodList
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storageOpts := storage.ListOptions{
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Predicate: storage.Everything,
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Recursive: true,
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}
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if err := store.GetList(ctx, "/", storageOpts, &got); !storage.IsInternalError(err) {
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t.Errorf("Unexpected error %v", err)
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}
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// Get should fail
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if err := store.Get(ctx, preset[1].key, storage.GetOptions{}, &example.Pod{}); !storage.IsInternalError(err) {
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t.Errorf("Unexpected error: %v", err)
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}
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// GuaranteedUpdate without suggestion should return an error
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if err := store.GuaranteedUpdate(ctx, preset[1].key, &example.Pod{}, false, nil, func(input runtime.Object, res storage.ResponseMeta) (output runtime.Object, ttl *uint64, err error) {
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return input, nil, nil
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}, nil); !storage.IsInternalError(err) {
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t.Errorf("Unexpected error: %v", err)
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}
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// GuaranteedUpdate with suggestion should return an error if we don't change the object
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if err := store.GuaranteedUpdate(ctx, preset[1].key, &example.Pod{}, false, nil, func(input runtime.Object, res storage.ResponseMeta) (output runtime.Object, ttl *uint64, err error) {
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return input, nil, nil
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}, preset[1].obj); err == nil {
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t.Errorf("Unexpected error: %v", err)
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}
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// Delete fails with internal error.
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if err := store.Delete(ctx, preset[1].key, &example.Pod{}, nil, storage.ValidateAllObjectFunc, nil); !storage.IsInternalError(err) {
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t.Errorf("Unexpected error: %v", err)
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}
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if err := store.Get(ctx, preset[1].key, storage.GetOptions{}, &example.Pod{}); !storage.IsInternalError(err) {
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t.Errorf("Unexpected error: %v", err)
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}
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storagetesting.RunTestTransformationFailure(ctx, t, &storeWithPrefixTransformer{store})
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}
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func TestList(t *testing.T) {
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@ -1327,6 +1327,71 @@ func RunTestGuaranteedUpdateWithTTL(ctx context.Context, t *testing.T, store sto
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TestCheckEventType(t, watch.Deleted, w)
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}
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func RunTestGuaranteedUpdateChecksStoredData(ctx context.Context, t *testing.T, store InterfaceWithPrefixTransformer) {
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input := &example.Pod{ObjectMeta: metav1.ObjectMeta{Name: "foo"}}
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key := "/somekey"
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// serialize input into etcd with data that would be normalized by a write -
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// in this case, leading whitespace
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revertTransformer := store.UpdatePrefixTransformer(
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func(transformer *PrefixTransformer) value.Transformer {
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transformer.prefix = []byte(string(transformer.prefix) + " ")
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return transformer
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})
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_, initial := TestPropagateStore(ctx, t, store, input)
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revertTransformer()
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// this update should write the canonical value to etcd because the new serialization differs
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// from the stored serialization
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input.ResourceVersion = initial.ResourceVersion
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out := &example.Pod{}
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err := store.GuaranteedUpdate(ctx, key, out, true, nil,
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func(_ runtime.Object, _ storage.ResponseMeta) (runtime.Object, *uint64, error) {
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return input, nil, nil
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}, input)
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if err != nil {
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t.Fatalf("Update failed: %v", err)
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}
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if out.ResourceVersion == initial.ResourceVersion {
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t.Errorf("guaranteed update should have updated the serialized data, got %#v", out)
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}
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lastVersion := out.ResourceVersion
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// this update should not write to etcd because the input matches the stored data
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input = out
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out = &example.Pod{}
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err = store.GuaranteedUpdate(ctx, key, out, true, nil,
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func(_ runtime.Object, _ storage.ResponseMeta) (runtime.Object, *uint64, error) {
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return input, nil, nil
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}, input)
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if err != nil {
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t.Fatalf("Update failed: %v", err)
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}
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if out.ResourceVersion != lastVersion {
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t.Errorf("guaranteed update should have short-circuited write, got %#v", out)
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}
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revertTransformer = store.UpdatePrefixTransformer(
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func(transformer *PrefixTransformer) value.Transformer {
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transformer.stale = true
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return transformer
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})
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defer revertTransformer()
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// this update should write to etcd because the transformer reported stale
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err = store.GuaranteedUpdate(ctx, key, out, true, nil,
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func(_ runtime.Object, _ storage.ResponseMeta) (runtime.Object, *uint64, error) {
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return input, nil, nil
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}, input)
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if err != nil {
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t.Fatalf("Update failed: %v", err)
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}
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if out.ResourceVersion == lastVersion {
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t.Errorf("guaranteed update should have written to etcd when transformer reported stale, got %#v", out)
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}
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}
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func RunTestGuaranteedUpdateWithConflict(ctx context.Context, t *testing.T, store storage.Interface) {
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key, _ := TestPropagateStore(ctx, t, store, &example.Pod{ObjectMeta: metav1.ObjectMeta{Name: "foo"}})
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@ -1447,6 +1512,82 @@ func RunTestGuaranteedUpdateWithSuggestionAndConflict(ctx context.Context, t *te
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}
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}
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func RunTestTransformationFailure(ctx context.Context, t *testing.T, store InterfaceWithPrefixTransformer) {
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preset := []struct {
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key string
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obj *example.Pod
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storedObj *example.Pod
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}{{
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key: "/one-level/test",
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obj: &example.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "bar"},
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Spec: DeepEqualSafePodSpec(),
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},
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}, {
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key: "/two-level/1/test",
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obj: &example.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "baz"},
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Spec: DeepEqualSafePodSpec(),
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},
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}}
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for i, ps := range preset[:1] {
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preset[i].storedObj = &example.Pod{}
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err := store.Create(ctx, ps.key, ps.obj, preset[:1][i].storedObj, 0)
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if err != nil {
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t.Fatalf("Set failed: %v", err)
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}
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}
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// create a second resource with an invalid prefix
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revertTransformer := store.UpdatePrefixTransformer(
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func(transformer *PrefixTransformer) value.Transformer {
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return NewPrefixTransformer([]byte("otherprefix!"), false)
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})
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for i, ps := range preset[1:] {
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preset[1:][i].storedObj = &example.Pod{}
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err := store.Create(ctx, ps.key, ps.obj, preset[1:][i].storedObj, 0)
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if err != nil {
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t.Fatalf("Set failed: %v", err)
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}
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}
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revertTransformer()
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// List should fail
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var got example.PodList
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storageOpts := storage.ListOptions{
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Predicate: storage.Everything,
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Recursive: true,
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}
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if err := store.GetList(ctx, "/", storageOpts, &got); !storage.IsInternalError(err) {
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t.Errorf("Unexpected error %v", err)
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}
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// Get should fail
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if err := store.Get(ctx, preset[1].key, storage.GetOptions{}, &example.Pod{}); !storage.IsInternalError(err) {
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t.Errorf("Unexpected error: %v", err)
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}
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updateFunc := func(input runtime.Object, res storage.ResponseMeta) (runtime.Object, *uint64, error) {
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return input, nil, nil
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}
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// GuaranteedUpdate without suggestion should return an error
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if err := store.GuaranteedUpdate(ctx, preset[1].key, &example.Pod{}, false, nil, updateFunc, nil); !storage.IsInternalError(err) {
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t.Errorf("Unexpected error: %v", err)
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}
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// GuaranteedUpdate with suggestion should return an error if we don't change the object
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if err := store.GuaranteedUpdate(ctx, preset[1].key, &example.Pod{}, false, nil, updateFunc, preset[1].obj); err == nil {
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t.Errorf("Unexpected error: %v", err)
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}
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// Delete fails with internal error.
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if err := store.Delete(ctx, preset[1].key, &example.Pod{}, nil, storage.ValidateAllObjectFunc, nil); !storage.IsInternalError(err) {
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t.Errorf("Unexpected error: %v", err)
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}
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if err := store.Get(ctx, preset[1].key, storage.GetOptions{}, &example.Pod{}); !storage.IsInternalError(err) {
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t.Errorf("Unexpected error: %v", err)
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}
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}
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func RunTestCount(ctx context.Context, t *testing.T, store storage.Interface) {
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resourceA := "/foo.bar.io/abc"
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