public void ProbingCompleted_EmptyProbingResultList_DoNothing()
{
var options = Options.Create(new ConsecutiveFailuresHealthPolicyOptions {
DefaultThreshold = 2
});
var policy = new ConsecutiveFailuresHealthPolicy(options, new DestinationHealthUpdaterStub());
var cluster = GetClusterInfo("cluster0", destinationCount: 2);
var probingResults = new[] {
new DestinationProbingResult(cluster.Destinations.Values.First(), new HttpResponseMessage(HttpStatusCode.InternalServerError), null),
new DestinationProbingResult(cluster.Destinations.Values.Skip(1).First(), new HttpResponseMessage(HttpStatusCode.OK), null)
};
for (var i = 0; i < 2; i++)
{
policy.ProbingCompleted(cluster, probingResults);
}
Assert.Equal(DestinationHealth.Unhealthy, cluster.Destinations.Values.First().Health.Active);
Assert.Equal(DestinationHealth.Healthy, cluster.Destinations.Values.Skip(1).First().Health.Active);
policy.ProbingCompleted(cluster, new DestinationProbingResult[0]);
Assert.Equal(DestinationHealth.Unhealthy, cluster.Destinations.Values.First().Health.Active);
Assert.Equal(DestinationHealth.Healthy, cluster.Destinations.Values.Skip(1).First().Health.Active);
}
public void ProbingCompleted_SuccessfulResponse_MarkDestinationHealthy()
{
var options = Options.Create(new ConsecutiveFailuresHealthPolicyOptions {
DefaultThreshold = 2
});
var policy = new ConsecutiveFailuresHealthPolicy(options, new DestinationHealthUpdaterStub());
var cluster = GetClusterInfo("cluster0", destinationCount: 2);
var probingResults = new[] {
new DestinationProbingResult(cluster.DestinationManager.Items[0], new HttpResponseMessage(HttpStatusCode.InternalServerError), null),
new DestinationProbingResult(cluster.DestinationManager.Items[1], new HttpResponseMessage(HttpStatusCode.OK), null)
};
for (var i = 0; i < 2; i++)
{
policy.ProbingCompleted(cluster, probingResults);
}
Assert.Equal(DestinationHealth.Unhealthy, cluster.DestinationManager.Items[0].Health.Active);
Assert.Equal(DestinationHealth.Healthy, cluster.DestinationManager.Items[1].Health.Active);
policy.ProbingCompleted(cluster, new[] { new DestinationProbingResult(cluster.DestinationManager.Items[0], new HttpResponseMessage(HttpStatusCode.OK), null) });
Assert.Equal(DestinationHealth.Healthy, cluster.DestinationManager.Items[0].Health.Active);
Assert.Equal(DestinationHealth.Healthy, cluster.DestinationManager.Items[1].Health.Active);
Assert.All(cluster.DestinationManager.Items, d => Assert.Equal(DestinationHealth.Unknown, d.Health.Passive));
}
public void ProbingCompleted_FailureThresholdExceeded_MarkDestinationUnhealthy()
{
var options = Options.Create(new ConsecutiveFailuresHealthPolicyOptions {
DefaultThreshold = 2
});
var policy = new ConsecutiveFailuresHealthPolicy(options, new DestinationHealthUpdaterStub());
var cluster0 = GetClusterInfo("cluster0", destinationCount: 2);
var cluster1 = GetClusterInfo("cluster0", destinationCount: 2, failureThreshold: 3);
var probingResults0 = new[] {
new DestinationProbingResult(cluster0.Destinations.Values.First(), new HttpResponseMessage(HttpStatusCode.InternalServerError), null),
new DestinationProbingResult(cluster0.Destinations.Values.Skip(1).First(), new HttpResponseMessage(HttpStatusCode.OK), null)
};
var probingResults1 = new[] {
new DestinationProbingResult(cluster1.Destinations.Values.First(), new HttpResponseMessage(HttpStatusCode.OK), null),
new DestinationProbingResult(cluster1.Destinations.Values.Skip(1).First(), null, new InvalidOperationException())
};
Assert.Equal(HealthCheckConstants.ActivePolicy.ConsecutiveFailures, policy.Name);
// Initial state
Assert.All(cluster0.Destinations.Values, d => Assert.Equal(DestinationHealth.Unknown, d.Health.Active));
Assert.All(cluster1.Destinations.Values, d => Assert.Equal(DestinationHealth.Unknown, d.Health.Active));
// First probing attempt
policy.ProbingCompleted(cluster0, probingResults0);
Assert.All(cluster0.Destinations.Values, d => Assert.Equal(DestinationHealth.Healthy, d.Health.Active));
policy.ProbingCompleted(cluster1, probingResults1);
Assert.All(cluster1.Destinations.Values, d => Assert.Equal(DestinationHealth.Healthy, d.Health.Active));
// Second probing attempt
policy.ProbingCompleted(cluster0, probingResults0);
Assert.Equal(DestinationHealth.Unhealthy, cluster0.Destinations.Values.First().Health.Active);
Assert.Equal(DestinationHealth.Healthy, cluster0.Destinations.Values.Skip(1).First().Health.Active);
policy.ProbingCompleted(cluster1, probingResults1);
Assert.All(cluster1.Destinations.Values, d => Assert.Equal(DestinationHealth.Healthy, d.Health.Active));
// Third probing attempt
policy.ProbingCompleted(cluster0, probingResults0);
Assert.Equal(DestinationHealth.Unhealthy, cluster0.Destinations.Values.First().Health.Active);
Assert.Equal(DestinationHealth.Healthy, cluster0.Destinations.Values.Skip(1).First().Health.Active);
policy.ProbingCompleted(cluster1, probingResults1);
Assert.Equal(DestinationHealth.Healthy, cluster1.Destinations.Values.First().Health.Active);
Assert.Equal(DestinationHealth.Unhealthy, cluster1.Destinations.Values.Skip(1).First().Health.Active);
Assert.All(cluster0.Destinations.Values, d => Assert.Equal(DestinationHealth.Unknown, d.Health.Passive));
Assert.All(cluster1.Destinations.Values, d => Assert.Equal(DestinationHealth.Unknown, d.Health.Passive));
}