fakeBBS.DesiredLRPByProcessGuidReturns(&models.DesiredLRP{}, models.ErrResourceNotFound)
buildpackBuilder.BuildReturns(newlyDesiredLRP, nil)
})
It("logs the incoming and outgoing request", func() {
Eventually(logger.TestSink.Buffer).Should(gbytes.Say("request-from-cc"))
Eventually(logger.TestSink.Buffer).Should(gbytes.Say("creating-desired-lrp"))
})
It("creates the desired LRP", func() {
Expect(fakeBBS.DesireLRPCallCount()).To(Equal(1))
Expect(fakeBBS.DesiredLRPByProcessGuidCallCount()).To(Equal(1))
Expect(fakeBBS.DesireLRPArgsForCall(0)).To(Equal(newlyDesiredLRP))
Expect(buildpackBuilder.BuildArgsForCall(0)).To(Equal(&desireAppRequest))
})
It("responds with 202 Accepted", func() {
Expect(responseRecorder.Code).To(Equal(http.StatusAccepted))
})
It("increments the desired LRPs counter", func() {
Expect(metricSender.GetCounter("LRPsDesired")).To(Equal(uint64(1)))
})
Context("when the bbs fails", func() {
BeforeEach(func() {
fakeBBS.DesireLRPReturns(errors.New("oh no"))
})
Expect(bbsClient.RemoveDesiredLRPArgsForCall(0)).To(Equal("excess-process-guid"))
})
})
Context("and the differ discovers missing apps", func() {
It("uses the recipe builder to construct the create LRP request", func() {
Eventually(buildpackRecipeBuilder.BuildCallCount).Should(Equal(1))
Consistently(buildpackRecipeBuilder.BuildCallCount).Should(Equal(1))
expectedRoutingInfo, err := cc_messages.CCHTTPRoutes{
{Hostname: "host-new-process-guid"},
}.CCRouteInfo()
Expect(err).NotTo(HaveOccurred())
Eventually(buildpackRecipeBuilder.BuildArgsForCall(0)).Should(Equal(
&cc_messages.DesireAppRequestFromCC{
ProcessGuid: "new-process-guid",
ETag: "new-etag",
RoutingInfo: expectedRoutingInfo,
}))
})
It("creates a desired LRP for the missing app", func() {
Eventually(bbsClient.DesireLRPCallCount).Should(Equal(1))
Consistently(bbsClient.DesireLRPCallCount).Should(Equal(1))
Expect(bbsClient.DesireLRPArgsForCall(0).ProcessGuid).To(Equal("new-process-guid"))
})
Context("when fetching desire app requests from the CC fails", func() {
BeforeEach(func() {