fakeReceptorClient.DesiredLRPsReturns(desiredLRPs, nil) err := appRunner.ScaleApp("app-not-running", 15) Expect(err).To(MatchError("app-not-running is not started.")) Expect(fakeReceptorClient.DesiredLRPsCallCount()).To(Equal(1)) }) Context("returning errors from the receptor", func() { It("returns desiring lrp errors", func() { desiredLRPs := []receptor.DesiredLRPResponse{ {ProcessGuid: "americano-app", Instances: 1}, } fakeReceptorClient.DesiredLRPsReturns(desiredLRPs, nil) receptorError := errors.New("error - Updating an LRP") fakeReceptorClient.UpdateDesiredLRPReturns(receptorError) err := appRunner.ScaleApp("americano-app", 17) Expect(err).To(MatchError(receptorError)) }) It("returns errors fetching the existing lrp count", func() { receptorError := errors.New("error - Existing Count") fakeReceptorClient.DesiredLRPsReturns([]receptor.DesiredLRPResponse{}, receptorError) err := appRunner.ScaleApp("nescafe-app", 2) Expect(err).To(MatchError(receptorError)) }) }) })