public void Should_detect_active_endpoints_that_has_not_sent_heartbeats_within_the_grace_period()
{
var now = DateTime.UtcNow;
var gracePeriod = TimeSpan.FromSeconds(40);
var currentHeartbeatStatus = new HeartbeatStatusProvider
{
GracePeriod = gracePeriod
};
var hostId = Guid.NewGuid();
//unknown
currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails { Host = "Machine", HostId = hostId, Name = "InactiveEndpoint" });
//endpoint that has already failed
currentHeartbeatStatus.RegisterHeartbeatingEndpoint(new EndpointDetails { Host = "Machine", HostId = hostId, Name = "AlreadyFailedEndpoint" }, now);
currentHeartbeatStatus.RegisterEndpointThatFailedToHeartbeat(new EndpointDetails { Host = "Machine", HostId = hostId, Name = "AlreadyFailedEndpoint" });
//our failing one
currentHeartbeatStatus.RegisterHeartbeatingEndpoint(new EndpointDetails { Host = "Machine", HostId = hostId, Name = "FailingEndpoint" }, now);
//one that is outside the grace
currentHeartbeatStatus.RegisterHeartbeatingEndpoint(new EndpointDetails { Host = "Machine", HostId = hostId, Name = "NewEndpoint2" }, now + gracePeriod);
var endpoints = currentHeartbeatStatus.GetPotentiallyFailedEndpoints(DateTime.UtcNow.Add(gracePeriod));
var endpoint = endpoints.SingleOrDefault();
Assert.NotNull(endpoint);
Assert.AreEqual("FailingEndpoint", endpoint.Details.Name);
Assert.AreEqual(now, endpoint.LastHeartbeatAt);
}
public void When_A_New_Endpoint_Is_Detected_Should_List_As_Inactive()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var hostId = Guid.NewGuid();
VerifyHeartbeatStats(currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails{ Host = "Machine", HostId = hostId, Name = "NewEndpoint1" }), 0, 1);
VerifyHeartbeatStats(currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails{ Host = "Machine", HostId = hostId, Name = "NewEndpoint2" }), 0, 2);
}
public void When_A_New_Endpoint_Is_Detected_Should_not_override_if_endpoint_already_exists()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var hostId = Guid.NewGuid();
VerifyHeartbeatStats(currentHeartbeatStatus.RegisterHeartbeatingEndpoint(new EndpointDetails { Host = "Machine", HostId = hostId, Name = "NewEndpoint1" },DateTime.UtcNow), 1, 0);
VerifyHeartbeatStats(currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails { Host = "Machine", HostId = hostId, Name = "NewEndpoint1" }), 1, 0);
}
public void When_A_New_Endpoint_without_a_hostid_Is_Detected_Should_List_As_Inactive()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var stats = currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails { Host = "Machine", Name = "NewEndpoint" });
VerifyHeartbeatStats(stats, 0, 1);
//make sure to handles duplicates as well
stats = currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails { Host = "Machine", Name = "NewEndpoint" });
VerifyHeartbeatStats(stats, 0, 1);
}
public void When_A_New_Endpoint_Is_Detected_Should_List_As_Inactive()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var hostId = Guid.NewGuid();
VerifyHeartbeatStats(currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "NewEndpoint1"
}), 0, 1);
VerifyHeartbeatStats(currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "NewEndpoint2"
}), 0, 2);
}
public void When_A_New_Endpoint_Is_Detected_Should_not_override_if_endpoint_already_exists()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var hostId = Guid.NewGuid();
VerifyHeartbeatStats(currentHeartbeatStatus.RegisterHeartbeatingEndpoint(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "NewEndpoint1"
}, DateTime.UtcNow), 1, 0);
VerifyHeartbeatStats(currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "NewEndpoint1"
}), 1, 0);
}
public void When_heartbeats_are_enabled_should_update_existing_endpoint_host_id_if_needed()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var hostId = Guid.NewGuid();
VerifyHeartbeatStats(currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails { Host = "Machine", Name = "NewEndpoint1" }), 0, 1);
VerifyHeartbeatStats(currentHeartbeatStatus.RegisterHeartbeatingEndpoint(new EndpointDetails { Host = "Machine", HostId = hostId, Name = "NewEndpoint1" }, DateTime.UtcNow), 1, 0);
var endpoint = currentHeartbeatStatus.GetPotentiallyFailedEndpoints(DateTime.UtcNow.AddDays(1)).SingleOrDefault();
Assert.AreEqual(hostId,endpoint.Details.HostId);
}
public void When_Heartbeating_Endpoint_Is_Detected_That_Is_Already_Known()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var hostId = Guid.NewGuid();
currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "NewEndpoint"
});
var stats = currentHeartbeatStatus.RegisterHeartbeatingEndpoint(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "NewEndpoint"
}, DateTime.UtcNow);
VerifyHeartbeatStats(stats, 1, 0);
}
public void When_Heartbeating_Endpoint_No_Longer_Sends_Heartbeats()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var hostId = Guid.NewGuid();
currentHeartbeatStatus.RegisterHeartbeatingEndpoint(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "NewEndpoint"
}, DateTime.UtcNow);
var stats = currentHeartbeatStatus.RegisterEndpointThatFailedToHeartbeat(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "NewEndpoint"
});
VerifyHeartbeatStats(stats, 0, 1);
}
public void When_Endpoint_Heartbeats_Is_Restored()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var hostId = Guid.NewGuid();
currentHeartbeatStatus.RegisterEndpointThatFailedToHeartbeat(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "NewEndpoint"
});
var stats = currentHeartbeatStatus.RegisterEndpointWhoseHeartbeatIsRestored(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "NewEndpoint"
}, DateTime.UtcNow);
VerifyHeartbeatStats(stats, 1, 0);
}
public void When_A_New_Endpoint_without_a_hostid_Is_Detected_Should_List_As_Inactive()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var stats = currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails {
Host = "Machine", Name = "NewEndpoint"
});
VerifyHeartbeatStats(stats, 0, 1);
//make sure to handles duplicates as well
stats = currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails {
Host = "Machine", Name = "NewEndpoint"
});
VerifyHeartbeatStats(stats, 0, 1);
}
public void When_heartbeats_are_enabled_should_update_existing_endpoint_host_id_if_needed()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var hostId = Guid.NewGuid();
VerifyHeartbeatStats(currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails {
Host = "Machine", Name = "NewEndpoint1"
}), 0, 1);
VerifyHeartbeatStats(currentHeartbeatStatus.RegisterHeartbeatingEndpoint(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "NewEndpoint1"
}, DateTime.UtcNow), 1, 0);
var endpoint = currentHeartbeatStatus.GetPotentiallyFailedEndpoints(DateTime.UtcNow.AddDays(1)).SingleOrDefault();
Assert.AreEqual(hostId, endpoint.Details.HostId);
}
public void Should_detect_active_endpoints_that_has_not_sent_heartbeats_within_the_grace_period()
{
var now = DateTime.UtcNow;
var gracePeriod = TimeSpan.FromSeconds(40);
var currentHeartbeatStatus = new HeartbeatStatusProvider
{
GracePeriod = gracePeriod
};
var hostId = Guid.NewGuid();
//unknown
currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "InactiveEndpoint"
});
//endpoint that has already failed
currentHeartbeatStatus.RegisterHeartbeatingEndpoint(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "AlreadyFailedEndpoint"
}, now);
currentHeartbeatStatus.RegisterEndpointThatFailedToHeartbeat(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "AlreadyFailedEndpoint"
});
//our failing one
currentHeartbeatStatus.RegisterHeartbeatingEndpoint(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "FailingEndpoint"
}, now);
//one that is outside the grace
currentHeartbeatStatus.RegisterHeartbeatingEndpoint(new EndpointDetails {
Host = "Machine", HostId = hostId, Name = "NewEndpoint2"
}, now + gracePeriod);
var endpoints = currentHeartbeatStatus.GetPotentiallyFailedEndpoints(DateTime.UtcNow.Add(gracePeriod));
var endpoint = endpoints.SingleOrDefault();
Assert.NotNull(endpoint);
Assert.AreEqual("FailingEndpoint", endpoint.Details.Name);
Assert.AreEqual(now, endpoint.LastHeartbeatAt);
}
public void When_endpoint_is_disabled_should_not_count()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var endpoint = new EndpointDetails
{
Host = "Machine",
HostId = Guid.NewGuid(),
Name = "NewEndpoint"
};
currentHeartbeatStatus.RegisterNewEndpoint(endpoint);
var stats = currentHeartbeatStatus.DisableMonitoring(endpoint);
VerifyHeartbeatStats(stats, 0, 0);
//enable and make sure it counts again
stats = currentHeartbeatStatus.EnableMonitoring(endpoint);
VerifyHeartbeatStats(stats, 0, 1);
}
public void When_Heartbeating_Endpoint_Is_Detected_For_A_Known_Endpoint_That_Has_No_Prior_HostId()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var hostId = Guid.NewGuid();
var endpointWithNoHostId = new EndpointDetails
{
Host = "Machine",
Name = "NewEndpoint"
};
currentHeartbeatStatus.RegisterNewEndpoint(endpointWithNoHostId);
var endpointWithHostId = new EndpointDetails
{
Host = "Machine",
HostId = hostId,
Name = "NewEndpoint"
};
var stats = currentHeartbeatStatus.RegisterHeartbeatingEndpoint(endpointWithHostId, DateTime.UtcNow);
VerifyHeartbeatStats(stats, 1, 0);
}
public void When_endpoint_is_disabled_should_not_count()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var endpoint = new EndpointDetails()
{
Host = "Machine",
HostId = Guid.NewGuid(),
Name = "NewEndpoint"
};
currentHeartbeatStatus.RegisterNewEndpoint(endpoint);
var stats = currentHeartbeatStatus.DisableMonitoring(endpoint);
VerifyHeartbeatStats(stats, 0, 0);
//enable and make sure it counts again
stats = currentHeartbeatStatus.EnableMonitoring(endpoint);
VerifyHeartbeatStats(stats, 0, 1);
}
public void When_Heartbeating_Endpoint_Is_Detected_For_A_Known_Endpoint_That_Has_No_Prior_HostId()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var hostId = Guid.NewGuid();
var endpointWithNoHostId = new EndpointDetails
{
Host = "Machine",
Name = "NewEndpoint"
};
currentHeartbeatStatus.RegisterNewEndpoint(endpointWithNoHostId);
var endpointWithHostId = new EndpointDetails
{
Host = "Machine",
HostId = hostId,
Name = "NewEndpoint"
};
var stats = currentHeartbeatStatus.RegisterHeartbeatingEndpoint(endpointWithHostId, DateTime.UtcNow);
VerifyHeartbeatStats(stats, 1, 0);
}
public void When_Heartbeating_Endpoint_Is_Detected_That_Is_Already_Known()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var hostId = Guid.NewGuid();
currentHeartbeatStatus.RegisterNewEndpoint(new EndpointDetails { Host = "Machine", HostId = hostId, Name = "NewEndpoint" });
var stats = currentHeartbeatStatus.RegisterHeartbeatingEndpoint(new EndpointDetails { Host = "Machine", HostId = hostId, Name = "NewEndpoint" }, DateTime.UtcNow);
VerifyHeartbeatStats(stats, 1, 0);
}
public void When_Endpoint_Heartbeats_Is_Restored()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var hostId = Guid.NewGuid();
currentHeartbeatStatus.RegisterEndpointThatFailedToHeartbeat(new EndpointDetails { Host = "Machine", HostId = hostId, Name = "NewEndpoint" });
var stats = currentHeartbeatStatus.RegisterEndpointWhoseHeartbeatIsRestored(new EndpointDetails { Host = "Machine", HostId = hostId, Name = "NewEndpoint" },DateTime.UtcNow);
VerifyHeartbeatStats(stats, 1, 0);
}
public void When_Heartbeating_Endpoint_No_Longer_Sends_Heartbeats()
{
var currentHeartbeatStatus = new HeartbeatStatusProvider();
var hostId = Guid.NewGuid();
currentHeartbeatStatus.RegisterHeartbeatingEndpoint(new EndpointDetails { Host = "Machine", HostId = hostId, Name = "NewEndpoint" },DateTime.UtcNow);
var stats = currentHeartbeatStatus.RegisterEndpointThatFailedToHeartbeat(new EndpointDetails { Host = "Machine", HostId = hostId, Name = "NewEndpoint" });
VerifyHeartbeatStats(stats, 0, 1);
}
