package action_test
import (
"errors"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "bosh/agent/action"
boshas "bosh/agent/applier/applyspec"
fakeappl "bosh/agent/applier/fakes"
)
var _ = Describe("PrepareAction", func() {
var (
applier *fakeappl.FakeApplier
action PrepareAction
)
BeforeEach(func() {
applier = fakeappl.NewFakeApplier()
action = NewPrepare(applier)
})
It("is asynchronous", func() {
Expect(action.IsAsynchronous()).To(BeTrue())
})
It("is not persistent", func() {
Expect(action.IsPersistent()).To(BeFalse())
})
func init() {
Describe("ApplyAction", func() {
var (
applier *fakeappl.FakeApplier
specService *fakeas.FakeV1Service
settingsService *fakesettings.FakeSettingsService
action ApplyAction
)
BeforeEach(func() {
applier = fakeappl.NewFakeApplier()
specService = fakeas.NewFakeV1Service()
settingsService = &fakesettings.FakeSettingsService{}
action = NewApply(applier, specService, settingsService)
})
It("apply should be asynchronous", func() {
Expect(action.IsAsynchronous()).To(BeTrue())
})
It("is not persistent", func() {
Expect(action.IsPersistent()).To(BeFalse())
})
Describe("Run", func() {
settings := boshsettings.Settings{AgentID: "fake-agent-id"}
BeforeEach(func() {
settingsService.Settings = settings
})
Context("when desired spec has configuration hash", func() {
currentApplySpec := boshas.V1ApplySpec{ConfigurationHash: "fake-current-config-hash"}
desiredApplySpec := boshas.V1ApplySpec{ConfigurationHash: "fake-desired-config-hash"}
populatedDesiredApplySpec := boshas.V1ApplySpec{
ConfigurationHash: "fake-populated-desired-config-hash",
}
Context("when current spec can be retrieved", func() {
BeforeEach(func() {
specService.Spec = currentApplySpec
})
It("populates dynamic networks in desired spec", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).ToNot(HaveOccurred())
Expect(specService.PopulateDynamicNetworksSpec).To(Equal(desiredApplySpec))
Expect(specService.PopulateDynamicNetworksSettings).To(Equal(settings))
})
Context("when resolving dynamic networks succeeds", func() {
BeforeEach(func() {
specService.PopulateDynamicNetworksResultSpec = populatedDesiredApplySpec
})
It("runs applier with populated desired spec", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).ToNot(HaveOccurred())
Expect(applier.Applied).To(BeTrue())
Expect(applier.ApplyCurrentApplySpec).To(Equal(currentApplySpec))
Expect(applier.ApplyDesiredApplySpec).To(Equal(populatedDesiredApplySpec))
})
Context("when applier succeeds applying desired spec", func() {
Context("when saving desires spec as current spec succeeds", func() {
It("returns 'applied' after setting populated desired spec as current spec", func() {
value, err := action.Run(desiredApplySpec)
Expect(err).ToNot(HaveOccurred())
Expect(value).To(Equal("applied"))
Expect(specService.Spec).To(Equal(populatedDesiredApplySpec))
})
})
Context("when saving populated desires spec as current spec fails", func() {
It("returns error because agent was not able to remember that is converged to desired spec", func() {
specService.SetErr = errors.New("fake-set-error")
_, err := action.Run(desiredApplySpec)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-set-error"))
})
})
})
Context("when applier fails applying desired spec", func() {
BeforeEach(func() {
applier.ApplyError = errors.New("fake-apply-error")
})
It("returns error", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-apply-error"))
})
It("does not save desired spec as current spec", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).To(HaveOccurred())
Expect(specService.Spec).To(Equal(currentApplySpec))
})
})
})
Context("when resolving dynamic networks fails", func() {
BeforeEach(func() {
specService.PopulateDynamicNetworksErr = errors.New("fake-populate-dynamic-networks-err")
})
It("returns error", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-populate-dynamic-networks-err"))
})
It("does not apply desired spec as current spec", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).To(HaveOccurred())
Expect(applier.Applied).To(BeFalse())
})
It("does not save desired spec as current spec", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).To(HaveOccurred())
Expect(specService.Spec).To(Equal(currentApplySpec))
})
})
})
Context("when current spec cannot be retrieved", func() {
BeforeEach(func() {
specService.Spec = currentApplySpec
specService.GetErr = errors.New("fake-get-error")
})
It("returns error and does not apply desired spec", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-get-error"))
})
It("does not run applier with desired spec", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).To(HaveOccurred())
Expect(applier.Applied).To(BeFalse())
})
It("does not save desired spec as current spec", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).To(HaveOccurred())
Expect(specService.Spec).To(Equal(currentApplySpec))
})
})
})
Context("when desired spec does not have a configuration hash", func() {
desiredApplySpec := boshas.V1ApplySpec{
JobSpec: boshas.JobSpec{
Template: "fake-job-template",
},
}
populatedDesiredApplySpec := boshas.V1ApplySpec{
JobSpec: boshas.JobSpec{
Template: "fake-populated-job-template",
},
}
It("populates dynamic networks in desired spec", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).ToNot(HaveOccurred())
Expect(specService.PopulateDynamicNetworksSpec).To(Equal(desiredApplySpec))
Expect(specService.PopulateDynamicNetworksSettings).To(Equal(settings))
})
Context("when resolving dynamic networks succeeds", func() {
BeforeEach(func() {
specService.PopulateDynamicNetworksResultSpec = populatedDesiredApplySpec
})
Context("when saving desires spec as current spec succeeds", func() {
It("returns 'applied' after setting desired spec as current spec", func() {
value, err := action.Run(desiredApplySpec)
Expect(err).ToNot(HaveOccurred())
Expect(value).To(Equal("applied"))
Expect(specService.Spec).To(Equal(populatedDesiredApplySpec))
})
It("does not try to apply desired spec since it does not have jobs and packages", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).ToNot(HaveOccurred())
Expect(applier.Applied).To(BeFalse())
})
})
Context("when saving desires spec as current spec fails", func() {
BeforeEach(func() {
specService.SetErr = errors.New("fake-set-error")
})
It("returns error because agent was not able to remember that is converged to desired spec", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-set-error"))
})
It("does not try to apply desired spec since it does not have jobs and packages", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).To(HaveOccurred())
Expect(applier.Applied).To(BeFalse())
})
})
})
Context("when resolving dynamic networks fails", func() {
BeforeEach(func() {
specService.PopulateDynamicNetworksErr = errors.New("fake-populate-dynamic-networks-err")
})
It("returns error", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-populate-dynamic-networks-err"))
})
It("does not apply desired spec as current spec", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).To(HaveOccurred())
Expect(applier.Applied).To(BeFalse())
})
It("does not save desired spec as current spec", func() {
_, err := action.Run(desiredApplySpec)
Expect(err).To(HaveOccurred())
Expect(specService.Spec).ToNot(Equal(desiredApplySpec))
})
})
})
})
})
}