mirror of
https://github.com/kubernetes/client-go.git
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Merge pull request #85272 from mm4tt/pager_fix
pager.go: don't set ResourceVersion on subsequent List calls Kubernetes-commit: 452c8c9ad303933123ad1f0b208bc935315e8a67
This commit is contained in:
commit
050872ffe7
4
Godeps/Godeps.json
generated
4
Godeps/Godeps.json
generated
@ -348,11 +348,11 @@
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},
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{
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"ImportPath": "k8s.io/api",
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"Rev": "6cd33094d465"
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"Rev": "bbc9463b57e5"
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},
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{
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"ImportPath": "k8s.io/apimachinery",
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"Rev": "67a48e0c9266"
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"Rev": "3c7067801da2"
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},
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{
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"ImportPath": "k8s.io/gengo",
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8
go.mod
8
go.mod
@ -28,8 +28,8 @@ require (
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golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
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golang.org/x/time v0.0.0-20190308202827-9d24e82272b4
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google.golang.org/appengine v1.5.0 // indirect
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k8s.io/api v0.0.0-20191114215726-6cd33094d465
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k8s.io/apimachinery v0.0.0-20191114215425-67a48e0c9266
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k8s.io/api v0.0.0-20191115135540-bbc9463b57e5
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k8s.io/apimachinery v0.0.0-20191115015347-3c7067801da2
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k8s.io/klog v1.0.0
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k8s.io/utils v0.0.0-20191030222137-2b95a09bc58d
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sigs.k8s.io/yaml v1.1.0
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@ -38,6 +38,6 @@ require (
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replace (
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golang.org/x/sys => golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a // pinned to release-branch.go1.13
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golang.org/x/tools => golang.org/x/tools v0.0.0-20190821162956-65e3620a7ae7 // pinned to release-branch.go1.13
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k8s.io/api => k8s.io/api v0.0.0-20191114215726-6cd33094d465
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k8s.io/apimachinery => k8s.io/apimachinery v0.0.0-20191114215425-67a48e0c9266
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k8s.io/api => k8s.io/api v0.0.0-20191115135540-bbc9463b57e5
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k8s.io/apimachinery => k8s.io/apimachinery v0.0.0-20191115015347-3c7067801da2
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)
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4
go.sum
4
go.sum
@ -191,8 +191,8 @@ gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
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gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
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honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
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k8s.io/api v0.0.0-20191114215726-6cd33094d465/go.mod h1:TnwOuwwOmtUq5BythlhmbJs+lwQGEsSJ6N4S4ODl2m8=
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k8s.io/apimachinery v0.0.0-20191114215425-67a48e0c9266/go.mod h1:dXFS2zaQR8fyzuvRdJDHw2Aerij/yVGJSre0bZQSVJA=
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k8s.io/api v0.0.0-20191115135540-bbc9463b57e5/go.mod h1:iA/8arsvelvo4IDqIhX4IbjTEKBGgvsf2OraTuRtLFU=
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k8s.io/apimachinery v0.0.0-20191115015347-3c7067801da2/go.mod h1:dXFS2zaQR8fyzuvRdJDHw2Aerij/yVGJSre0bZQSVJA=
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k8s.io/gengo v0.0.0-20190128074634-0689ccc1d7d6/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
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k8s.io/klog v0.0.0-20181102134211-b9b56d5dfc92/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
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k8s.io/klog v0.3.0/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
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51
tools/cache/reflector_test.go
vendored
51
tools/cache/reflector_test.go
vendored
@ -572,27 +572,26 @@ func TestReflectorFullListIfExpired(t *testing.T) {
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for i := 0; i < 8; i++ {
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pods[i] = v1.Pod{ObjectMeta: metav1.ObjectMeta{Name: fmt.Sprintf("pod-%d", i), ResourceVersion: fmt.Sprintf("%d", i)}}
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}
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switch options.ResourceVersion {
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case "0":
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rvContinueLimit := func(rv, c string, l int64) metav1.ListOptions {
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return metav1.ListOptions{ResourceVersion: rv, Continue: c, Limit: l}
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}
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switch rvContinueLimit(options.ResourceVersion, options.Continue, options.Limit) {
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// initial limited list
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case rvContinueLimit("0", "", 4):
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return &v1.PodList{ListMeta: metav1.ListMeta{ResourceVersion: "10"}, Items: pods[0:4]}, nil
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case "10":
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switch options.Limit {
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case 4:
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switch options.Continue {
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case "":
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return &v1.PodList{ListMeta: metav1.ListMeta{Continue: "C1", ResourceVersion: "11"}, Items: pods[0:4]}, nil
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case "C1":
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return nil, apierrs.NewResourceExpired("The resourceVersion for the provided watch is too old.")
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default:
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t.Fatalf("Unrecognized Continue: %s", options.Continue)
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}
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case 0:
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return &v1.PodList{ListMeta: metav1.ListMeta{ResourceVersion: "11"}, Items: pods[0:8]}, nil
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default:
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t.Fatalf("Unrecognized Limit: %d", options.Limit)
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}
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// first page of the rv=10 list
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case rvContinueLimit("10", "", 4):
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return &v1.PodList{ListMeta: metav1.ListMeta{Continue: "C1", ResourceVersion: "11"}, Items: pods[0:4]}, nil
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// second page of the above list
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case rvContinueLimit("", "C1", 4):
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return nil, apierrs.NewResourceExpired("The resourceVersion for the provided watch is too old.")
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// rv=10 unlimited list
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case rvContinueLimit("10", "", 0):
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return &v1.PodList{ListMeta: metav1.ListMeta{ResourceVersion: "11"}, Items: pods[0:8]}, nil
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default:
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t.Fatalf("Unrecognized ResourceVersion: %s", options.ResourceVersion)
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err := fmt.Errorf("unexpected list options: %#v", options)
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t.Error(err)
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return nil, err
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}
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return nil, nil
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},
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@ -601,25 +600,29 @@ func TestReflectorFullListIfExpired(t *testing.T) {
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r.WatchListPageSize = 4
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// Initial list should use RV=0
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r.ListAndWatch(stopCh)
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if err := r.ListAndWatch(stopCh); err != nil {
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t.Fatal(err)
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}
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results := s.List()
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if len(results) != 4 {
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t.Errorf("Expected 4 results, got %d", len(results))
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}
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// relist should use lastSyncResourceVersions (RV=10) and since second page of RV=10 is expired, it should full list with RV=10
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// relist should use lastSyncResourceVersions (RV=10) and since second page of that expired, it should full list with RV=10
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stopCh = make(chan struct{})
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r.ListAndWatch(stopCh)
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if err := r.ListAndWatch(stopCh); err != nil {
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t.Fatal(err)
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}
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results = s.List()
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if len(results) != 8 {
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t.Errorf("Expected 8 results, got %d", len(results))
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}
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expectedRVs := []string{"0", "10", "10", "10"}
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expectedRVs := []string{"0", "10", "", "10"}
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if !reflect.DeepEqual(listCallRVs, expectedRVs) {
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t.Errorf("Expected series of list calls with resource versiosn of %v but got: %v", expectedRVs, listCallRVs)
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t.Errorf("Expected series of list calls with resource versiosn of %#v but got: %#v", expectedRVs, listCallRVs)
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}
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}
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@ -77,6 +77,7 @@ func (p *ListPager) List(ctx context.Context, options metav1.ListOptions) (runti
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if options.Limit == 0 {
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options.Limit = p.PageSize
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}
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requestedResourceVersion := options.ResourceVersion
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var list *metainternalversion.List
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for {
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select {
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@ -94,9 +95,11 @@ func (p *ListPager) List(ctx context.Context, options metav1.ListOptions) (runti
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if !errors.IsResourceExpired(err) || !p.FullListIfExpired || options.Continue == "" {
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return nil, err
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}
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// the list expired while we were processing, fall back to a full list
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// the list expired while we were processing, fall back to a full list at
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// the requested ResourceVersion.
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options.Limit = 0
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options.Continue = ""
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options.ResourceVersion = requestedResourceVersion
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return p.PageFn(ctx, options)
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}
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m, err := meta.ListAccessor(obj)
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@ -129,6 +132,10 @@ func (p *ListPager) List(ctx context.Context, options metav1.ListOptions) (runti
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// set the next loop up
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options.Continue = m.GetContinue()
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// Clear the ResourceVersion on the subsequent List calls to avoid the
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// `specifying resource version is not allowed when using continue` error.
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// See https://github.com/kubernetes/kubernetes/issues/85221#issuecomment-553748143.
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options.ResourceVersion = ""
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}
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}
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@ -72,6 +72,10 @@ func (p *testPager) PagedList(ctx context.Context, options metav1.ListOptions) (
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p.t.Errorf("invariant violated, expected limit %d and continue %s, got %#v", p.expectPage, expectedContinue, options)
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return nil, fmt.Errorf("invariant violated")
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}
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if options.Continue != "" && options.ResourceVersion != "" {
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p.t.Errorf("invariant violated, specifying resource version (%s) is not allowed when using continue (%s).", options.ResourceVersion, options.Continue)
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return nil, fmt.Errorf("invariant violated")
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}
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var list metainternalversion.List
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total := options.Limit
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if total == 0 {
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@ -181,6 +185,12 @@ func TestListPager_List(t *testing.T) {
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args: args{},
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want: list(21, "rv:20"),
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},
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{
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name: "two pages with resourceVersion",
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fields: fields{PageSize: 10, PageFn: (&testPager{t: t, expectPage: 10, remaining: 11, rv: "rv:20"}).PagedList},
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args: args{options: metav1.ListOptions{ResourceVersion: "rv:10"}},
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want: list(11, "rv:20"),
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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