JustBeforeEach(func() {
request := newTestRequest(requestBody)
handler.DesiredLRPByProcessGuid(logger, responseRecorder, request)
})
Context("when reading desired lrp from DB succeeds", func() {
var desiredLRP *models.DesiredLRP
BeforeEach(func() {
desiredLRP = &models.DesiredLRP{ProcessGuid: processGuid}
fakeDesiredLRPDB.DesiredLRPByProcessGuidReturns(desiredLRP, nil)
})
It("fetches desired lrp by process guid", func() {
Expect(fakeDesiredLRPDB.DesiredLRPByProcessGuidCallCount()).To(Equal(1))
_, actualProcessGuid := fakeDesiredLRPDB.DesiredLRPByProcessGuidArgsForCall(0)
Expect(actualProcessGuid).To(Equal(processGuid))
Expect(responseRecorder.Code).To(Equal(http.StatusOK))
response := models.DesiredLRPResponse{}
err := response.Unmarshal(responseRecorder.Body.Bytes())
Expect(err).NotTo(HaveOccurred())
Expect(response.Error).To(BeNil())
Expect(response.DesiredLrp).To(Equal(desiredLRP))
})
})
Context("when the DB returns no desired lrp", func() {
BeforeEach(func() {
fakeDesiredLRPDB.DesiredLRPByProcessGuidReturns(nil, models.ErrResourceNotFound)
})
It("unclaims the actual lrp instance and requests an auction", func() {
response := models.EvacuationResponse{}
err := response.Unmarshal(responseRecorder.Body.Bytes())
Expect(err).NotTo(HaveOccurred())
Expect(response.KeepContainer).To(BeFalse())
Expect(response.Error).To(BeNil())
Expect(fakeActualLRPDB.UnclaimActualLRPCallCount()).To(Equal(1))
_, lrpKey := fakeActualLRPDB.UnclaimActualLRPArgsForCall(0)
Expect(lrpKey.ProcessGuid).To(Equal("process-guid"))
Expect(lrpKey.Index).To(BeEquivalentTo(1))
Expect(fakeDesiredLRPDB.DesiredLRPByProcessGuidCallCount()).To(Equal(1))
_, guid := fakeDesiredLRPDB.DesiredLRPByProcessGuidArgsForCall(0)
Expect(guid).To(Equal("process-guid"))
expectedStartRequest := auctioneer.NewLRPStartRequestFromModel(desiredLRP, int(actual.Index))
Expect(fakeAuctioneerClient.RequestLRPAuctionsCallCount()).To(Equal(1))
_, startRequests := fakeAuctioneerClient.RequestLRPAuctionsArgsForCall(0)
Expect(startRequests).To(Equal([]*auctioneer.LRPStartRequest{&expectedStartRequest}))
})
Context("when the DB returns an unrecoverable error", func() {
BeforeEach(func() {
fakeEvacuationDB.RemoveEvacuatingActualLRPReturns(models.NewUnrecoverableError(nil))
})
It("logs and writes to the exit channel", func() {
Eventually(logger).Should(gbytes.Say("unrecoverable-error"))