public void Watch_BookmarkInterrupted_ShouldRewatchWithBookmarkResourceVersion()
{
var kubernetes = Substitute.For <IKubernetes>();
kubernetes.ListWithHttpMessagesAsync <V1Pod>(cancellationToken: Arg.Any <CancellationToken>())
.Returns(_ => TestData.ListPodEmpty.ToHttpOperationResponse <V1PodList, V1Pod>());
kubernetes.ListWithHttpMessagesAsync <V1Pod>(
watch: true,
resourceVersion: TestData.ListPodEmpty.Metadata.ResourceVersion,
allowWatchBookmarks: true,
cancellationToken: Arg.Any <CancellationToken>(),
timeoutSeconds: int.MaxValue)
.Returns(
_ => new V1Pod()
{
Kind = V1Pod.KubeKind,
ApiVersion = V1Pod.KubeApiVersion,
Metadata = new V1ObjectMeta()
{
ResourceVersion = TestData.ListPodOneItem.Metadata.ResourceVersion
}
}
.ToWatchEvent(WatchEventType.Bookmark)
.ToHttpOperationResponse());
kubernetes.ListWithHttpMessagesAsync <V1Pod>(
watch: true,
allowWatchBookmarks: true,
resourceVersion: TestData.ListPodOneItem.Metadata.ResourceVersion,
cancellationToken: Arg.Any <CancellationToken>(),
timeoutSeconds: int.MaxValue)
.Throws <TestCompleteException>();
var sut = new KubernetesInformer <V1Pod>(kubernetes, RetryPolicy.None, () => true);
Func <Task> act = async() => await sut.GetResource(ResourceStreamType.ListWatch).ToList().TimeoutIfNotDebugging();
act.Should().Throw <TestCompleteException>();
Received.InOrder(() =>
{
// initial list
kubernetes.ListWithHttpMessagesAsync <V1Pod>(cancellationToken: Arg.Any <CancellationToken>());
// watch after list with same version as returned by list - receive bookmark with new version
kubernetes.ListWithHttpMessagesAsync <V1Pod>(
resourceVersion: TestData.ListPodEmpty.Metadata.ResourceVersion,
cancellationToken: Arg.Any <CancellationToken>(),
watch: true,
allowWatchBookmarks: true,
timeoutSeconds: int.MaxValue);
// resume watch with bookmark version
kubernetes.ListWithHttpMessagesAsync <V1Pod>(
resourceVersion: TestData.ListPodOneItem.Metadata.ResourceVersion,
cancellationToken: Arg.Any <CancellationToken>(),
watch: true,
allowWatchBookmarks: true,
timeoutSeconds: int.MaxValue);
});
}
public async Task Watch()
{
_server.Given(Request.Create().WithParam("watch", MatchBehaviour.AcceptOnMatch, "true").UsingGet())
.RespondWith(Response.Create().WithBodyAsJson(TestData.TestPod1ResourceVersion2.ToWatchEvent(WatchEventType.Added)));
var sut = new KubernetesInformer <V1Pod>(_kubernetes, null, () => false);
var result = await sut.GetResource(ResourceStreamType.Watch).ToList().TimeoutIfNotDebugging();
result.Should().HaveCount(1);
result[0].EventFlags.Should().HaveFlag(EventTypeFlags.Add);
result[0].Value.Should().BeEquivalentTo(TestData.TestPod1ResourceVersion2);
}
public async Task WatchWithRetryPolicy_WhenApiCallThrowsTransient_ShouldRetry()
{
var kubernetes = Substitute.For <IKubernetes>();
kubernetes.ListWithHttpMessagesAsync <V1Pod>().ThrowsForAnyArgs(info => new HttpRequestException());
var sut = new KubernetesInformer <V1Pod>(kubernetes, new RetryPolicy((e, i) => i < 2, i => TimeSpan.Zero), () => false);
Func <Task> act = async() => await sut.GetResource(ResourceStreamType.ListWatch).ToList().TimeoutIfNotDebugging();
act.Should().Throw <HttpRequestException>();
await kubernetes.ReceivedWithAnyArgs(2).ListWithHttpMessagesAsync <V1Pod>();
await kubernetes.Received().ListWithHttpMessagesAsync <V1Pod>(cancellationToken: Arg.Any <CancellationToken>());
}
public void Watch_InterruptedWatchAndGoneResourceVersion_ShouldReList()
{
var kubernetes = Substitute.For <IKubernetes>();
kubernetes.ListWithHttpMessagesAsync <V1Pod>(cancellationToken: Arg.Any <CancellationToken>())
.Returns(
_ => TestData.ListPodEmpty.ToHttpOperationResponse <V1PodList, V1Pod>(),
_ => throw new TestCompleteException());
kubernetes.ListWithHttpMessagesAsync <V1Pod>(
cancellationToken: Arg.Any <CancellationToken>(),
watch: true,
allowWatchBookmarks: true,
resourceVersion: TestData.ListPodEmpty.Metadata.ResourceVersion,
timeoutSeconds: int.MaxValue)
.Returns(
_ => TestData.TestPod1ResourceVersion1.ToWatchEvent(WatchEventType.Added).ToHttpOperationResponse(),
_ => new HttpOperationResponse <KubernetesList <V1Pod> >()
{
Response = new HttpResponseMessage()
{
StatusCode = HttpStatusCode.Gone
}
});
var sut = new KubernetesInformer <V1Pod>(kubernetes, RetryPolicy.None, () => true);
Func <Task> act = async() => await sut.GetResource(ResourceStreamType.ListWatch).ToList().TimeoutIfNotDebugging();
act.Should().Throw <TestCompleteException>();
Received.InOrder(() =>
{
// initial list
kubernetes.ListWithHttpMessagesAsync <V1Pod>(cancellationToken: Arg.Any <CancellationToken>());
// watch after list
kubernetes.ListWithHttpMessagesAsync <V1Pod>(
cancellationToken: Arg.Any <CancellationToken>(),
watch: true,
allowWatchBookmarks: true,
resourceVersion: TestData.ListPodEmpty.Metadata.ResourceVersion,
timeoutSeconds: int.MaxValue);
// resume watch with same resource version - server responded with gone
kubernetes.ListWithHttpMessagesAsync <V1Pod>(
cancellationToken: Arg.Any <CancellationToken>(),
watch: true,
allowWatchBookmarks: true,
resourceVersion: TestData.ListPodEmpty.Metadata.ResourceVersion,
timeoutSeconds: int.MaxValue);
// restart the whole thing with list without version
kubernetes.ListWithHttpMessagesAsync <V1Pod>(cancellationToken: Arg.Any <CancellationToken>());
});
}
public async Task List()
{
_server.Given(Request.Create().WithParam("watch", MatchBehaviour.RejectOnMatch, "true").UsingGet())
.RespondWith(Response.Create().WithBodyAsJson(TestData.ListPodsTwoItems));
var sut = new KubernetesInformer <V1Pod>(_kubernetes);
var result = await sut.GetResource(ResourceStreamType.List).ToList().TimeoutIfNotDebugging();;
result.Should().HaveCount(2);
result[0].EventFlags.Should().HaveFlag(EventTypeFlags.ResetStart);
result[1].EventFlags.Should().HaveFlag(EventTypeFlags.ResetEnd);
result[0].Value.Should().BeEquivalentTo(TestData.ListPodsTwoItems.Items[0]);
result[1].Value.Should().BeEquivalentTo(TestData.ListPodsTwoItems.Items[1]);
}
public async Task ListWatch()
{
_server.Given(Request.Create().UsingGet()).AtPriority(100)
.RespondWith(Response.Create().WithBodyAsJson(TestData.ListPodsTwoItems));
_server.Given(Request.Create().WithParam("watch", MatchBehaviour.AcceptOnMatch, "true").UsingGet())
.RespondWith(Response.Create().WithBodyAsJson(TestData.TestPod1ResourceVersion2.ToWatchEvent(WatchEventType.Modified)));
var sut = new KubernetesInformer <V1Pod>(_kubernetes, new RetryPolicy((e, i) => false, i => TimeSpan.Zero), () => false);
var result = await sut.GetResource(ResourceStreamType.ListWatch).ToList().TimeoutIfNotDebugging();
result.Should().HaveCount(3);
result[0].EventFlags.Should().HaveFlag(EventTypeFlags.ResetStart);
result[0].Value.Should().BeEquivalentTo(TestData.TestPod1ResourceVersion1);
result[1].EventFlags.Should().HaveFlag(EventTypeFlags.ResetEnd);
result[1].Value.Should().BeEquivalentTo(TestData.TestPod2ResourceVersion1);
result[2].EventFlags.Should().HaveFlag(EventTypeFlags.Modify);
result[2].Value.Should().BeEquivalentTo(TestData.TestPod1ResourceVersion2);
}
