forked from vmware-archive/gate
/
heartbeater_test.go
163 lines (131 loc) · 3.68 KB
/
heartbeater_test.go
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package gate_test
import (
"encoding/json"
"net/http"
"time"
"github.com/cloudfoundry-incubator/garden"
gfakes "github.com/cloudfoundry-incubator/garden/fakes"
"github.com/concourse/atc"
. "github.com/concourse/gate"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/onsi/gomega/ghttp"
"github.com/pivotal-golang/lager"
"github.com/pivotal-golang/lager/lagertest"
"github.com/tedsuo/ifrit"
"github.com/tedsuo/ifrit/ginkgomon"
"github.com/tedsuo/rata"
)
var _ = Describe("Heartbeater", func() {
type registration struct {
worker atc.Worker
ttl time.Duration
}
var (
logger lager.Logger
addrToRegister string
interval time.Duration
resourceTypes []atc.WorkerResourceType
expectedWorker atc.Worker
fakeGardenClient *gfakes.FakeClient
fakeATC *ghttp.Server
heartbeater ifrit.Process
registrations <-chan registration
)
BeforeEach(func() {
logger = lagertest.NewTestLogger("test")
addrToRegister = "1.2.3.4:7777"
interval = time.Second
resourceTypes = []atc.WorkerResourceType{
{
Type: "git",
Image: "docker:///concourse/git-resource",
},
}
expectedWorker = atc.Worker{
Addr: addrToRegister,
ActiveContainers: 2,
ResourceTypes: resourceTypes,
Platform: "some-platform",
Tags: []string{"some", "tags"},
}
fakeATC = ghttp.NewServer()
registerRoute, found := atc.Routes.FindRouteByName(atc.RegisterWorker)
Ω(found).Should(BeTrue())
registered := make(chan registration, 100)
registrations = registered
fakeATC.RouteToHandler(registerRoute.Method, registerRoute.Path, func(w http.ResponseWriter, r *http.Request) {
var worker atc.Worker
err := json.NewDecoder(r.Body).Decode(&worker)
Ω(err).ShouldNot(HaveOccurred())
ttl, err := time.ParseDuration(r.URL.Query().Get("ttl"))
Ω(err).ShouldNot(HaveOccurred())
registered <- registration{worker, ttl}
})
fakeGardenClient = new(gfakes.FakeClient)
})
JustBeforeEach(func() {
atcEndpoint := rata.NewRequestGenerator(fakeATC.URL(), atc.Routes)
heartbeater = ifrit.Invoke(
NewHeartbeater(
logger,
interval,
fakeGardenClient,
atcEndpoint,
atc.Worker{
Addr: addrToRegister,
ResourceTypes: resourceTypes,
Platform: "some-platform",
Tags: []string{"some", "tags"},
},
),
)
})
AfterEach(func() {
ginkgomon.Interrupt(heartbeater)
})
Context("when Garden returns containers", func() {
var returnedContainers chan<- []garden.Container
BeforeEach(func() {
containers := make(chan []garden.Container, 2)
returnedContainers = containers
containers <- []garden.Container{
new(gfakes.FakeContainer),
new(gfakes.FakeContainer),
}
containers <- []garden.Container{
new(gfakes.FakeContainer),
new(gfakes.FakeContainer),
new(gfakes.FakeContainer),
new(gfakes.FakeContainer),
new(gfakes.FakeContainer),
}
close(containers)
fakeGardenClient.ContainersStub = func(garden.Properties) ([]garden.Container, error) {
return <-containers, nil
}
})
It("immediately registers", func() {
Ω(registrations).Should(Receive(Equal(registration{
worker: expectedWorker,
ttl: 2 * interval,
})))
})
Context("when the interval passes after the initial registration", func() {
JustBeforeEach(func() {
Ω(registrations).Should(Receive(Equal(registration{
worker: expectedWorker,
ttl: 2 * interval,
})))
time.Sleep(interval)
})
It("heartbeats", func() {
expectedWorker.ActiveContainers = 5
Eventually(registrations).Should(Receive(Equal(registration{
worker: expectedWorker,
ttl: 2 * interval,
})))
})
})
})
})