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disk_limits_test.go
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disk_limits_test.go
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package vizzini_test
import (
"code.cloudfoundry.org/bbs/models"
. "code.cloudfoundry.org/vizzini/matchers"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
)
var _ = Describe("DiskLimits", func() {
var lrp *models.DesiredLRP
BeforeEach(func() {
lrp = DesiredLRPWithGuid(guid)
})
Describe("with a preloaded rootfs, the disk limit is applied to the COW layer", func() {
BeforeEach(func() {
lrp.Setup = models.WrapAction(&models.DownloadAction{
From: config.GraceTarballURL,
To: ".",
CacheKey: "grace",
User: "vcap",
})
})
Context("when the disk limit exceeds the contents to be copied in", func() {
It("should not crash, but should start succesfully", func() {
lrp.DiskMb = 64
Expect(bbsClient.DesireLRP(logger, traceID, lrp)).To(Succeed())
Eventually(ActualGetter(logger, guid, 0)).Should(BeActualLRPWithState(guid, 0, models.ActualLRPStateRunning))
})
})
Context("when the disk limit is less than the contents to be copied in", func() {
It("should crash", func() {
lrp.DiskMb = 4
Expect(bbsClient.DesireLRP(logger, traceID, lrp)).To(Succeed())
Eventually(ActualGetter(logger, guid, 0)).Should(BeActualLRPThatHasCrashed(guid, 0))
//getting all the way helps ensure the tests don't spuriously fail
//when we delete the DesiredLRP if the application is in the middle of restarting it looks like we need to wiat for a convergence
//loop to eventually clean it up. This is likely a bug, though it's not crticial.
Eventually(ActualGetter(logger, guid, 0), ConvergerInterval).Should(BeActualLRPWithStateAndCrashCount(guid, 0, models.ActualLRPStateCrashed, 3))
})
})
})
Describe("{DOCKER} with a docker-image rootfs", func() {
BeforeEach(func() {
lrp.RootFs = config.GraceBusyboxImageURL
lrp.Setup = nil //note: we copy nothing in, the docker image on its own should cause this failure
lrp.Action = models.WrapAction(&models.RunAction{
Path: "/grace",
User: "root",
Env: []*models.EnvironmentVariable{{Name: "PORT", Value: "8080"}},
})
lrp.Monitor = nil
})
Context("when the disk limit exceeds the size of the docker image", func() {
It("should not crash, but should start succesfully", func() {
lrp.DiskMb = 64
Expect(bbsClient.DesireLRP(logger, traceID, lrp)).To(Succeed())
Eventually(ActualGetter(logger, guid, 0), dockerTimeout).Should(BeActualLRPWithState(guid, 0, models.ActualLRPStateRunning))
})
})
Context("when the disk limit is less than the size of the docker image", func() {
It("should crash", func() {
lrp.DiskMb = 4
Expect(bbsClient.DesireLRP(logger, traceID, lrp)).To(Succeed())
Eventually(ActualGetter(logger, guid, 0)).Should(BeActualLRPThatHasCrashed(guid, 0))
//getting all the way helps ensure the tests don't spuriously fail
//when we delete the DesiredLRP if the application is in the middle of restarting it looks like we need to wiat for a convergence
//loop to eventually clean it up. This is likely a bug, though it's not crticial.
Eventually(ActualGetter(logger, guid, 0), ConvergerInterval).Should(BeActualLRPWithStateAndCrashCount(guid, 0, models.ActualLRPStateCrashed, 3))
})
})
})
})