Expect(count).To(Equal(2))
Expect(countFiles(fakeFs, "/path/to/delete/stuff/in/")).To(Equal(0))
Expect(countFiles(fakeFs, "/path/to/other/things/in/")).To(Equal(1))
})
It("returns an error when glob fails", func() {
fakeFs.GlobErr = errors.New("couldn't walk")
fakeFs.WriteFileString("/path/to/delete/stuff/in/delete_me_1.foo", "goodbye")
fakeFs.WriteFileString("/path/to/delete/stuff/in/delete_me_2.bar", "goodbye")
count, err := cert.DeleteFiles(fakeFs, "/path/to/delete/stuff/in/", "delete_me_")
Expect(err).To(HaveOccurred())
Expect(count).To(Equal(0))
})
It("returns an error when RemoveAll() fails", func() {
fakeFs.RemoveAllError = errors.New("couldn't delete")
fakeFs.WriteFileString("/path/to/delete/stuff/in/delete_me_1.foo", "goodbye")
fakeFs.WriteFileString("/path/to/delete/stuff/in/delete_me_2.bar", "goodbye")
fakeFs.SetGlob("/path/to/delete/stuff/in/delete_me_*", []string{
"/path/to/delete/stuff/in/delete_me_1.foo",
"/path/to/delete/stuff/in/delete_me_2.bar",
})
count, err := cert.DeleteFiles(fakeFs, "/path/to/delete/stuff/in/", "delete_me_")
Expect(err).To(HaveOccurred())
Expect(count).To(Equal(0))
})
})
Describe("cert.Manager implementations", func() {
var (
fakeFs *fakesys.FakeFileSystem
func init() {
Describe("settingsService", func() {
var (
fs *fakesys.FakeFileSystem
fakeDefaultNetworkResolver *fakenet.FakeDefaultNetworkResolver
fakeSettingsSource *fakes.FakeSettingsSource
)
BeforeEach(func() {
fs = fakesys.NewFakeFileSystem()
fakeDefaultNetworkResolver = &fakenet.FakeDefaultNetworkResolver{}
fakeSettingsSource = &fakes.FakeSettingsSource{}
})
buildService := func() (Service, *fakesys.FakeFileSystem) {
logger := boshlog.NewLogger(boshlog.LevelNone)
service := NewService(fs, "/setting/path.json", fakeSettingsSource, fakeDefaultNetworkResolver, logger)
return service, fs
}
Describe("LoadSettings", func() {
var (
fetchedSettings Settings
fetcherFuncErr error
service Service
)
BeforeEach(func() {
fetchedSettings = Settings{}
fetcherFuncErr = nil
})
JustBeforeEach(func() {
fakeSettingsSource.SettingsValue = fetchedSettings
fakeSettingsSource.SettingsErr = fetcherFuncErr
service, fs = buildService()
})
Context("when settings fetcher succeeds fetching settings", func() {
BeforeEach(func() {
fetchedSettings = Settings{AgentID: "some-new-agent-id"}
})
Context("when settings contain at most one dynamic network", func() {
BeforeEach(func() {
fetchedSettings.Networks = Networks{
"fake-net-1": Network{Type: NetworkTypeDynamic},
}
})
It("updates the service with settings from the fetcher", func() {
err := service.LoadSettings()
Expect(err).NotTo(HaveOccurred())
Expect(service.GetSettings().AgentID).To(Equal("some-new-agent-id"))
})
It("persists settings to the settings file", func() {
err := service.LoadSettings()
Expect(err).NotTo(HaveOccurred())
json, err := json.Marshal(fetchedSettings)
Expect(err).NotTo(HaveOccurred())
fileContent, err := fs.ReadFile("/setting/path.json")
Expect(err).NotTo(HaveOccurred())
Expect(fileContent).To(Equal(json))
})
It("returns any error from writing to the setting file", func() {
fs.WriteFileError = errors.New("fs-write-file-error")
err := service.LoadSettings()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fs-write-file-error"))
})
})
})
Context("when settings fetcher fails fetching settings", func() {
BeforeEach(func() {
fetcherFuncErr = errors.New("fake-fetch-error")
})
Context("when a settings file exists", func() {
Context("when settings contain at most one dynamic network", func() {
BeforeEach(func() {
fs.WriteFile("/setting/path.json", []byte(`{
"agent_id":"some-agent-id",
"networks": {"fake-net-1": {"type": "dynamic"}}
}`))
fakeDefaultNetworkResolver.GetDefaultNetworkNetwork = Network{
IP: "fake-resolved-ip",
Netmask: "fake-resolved-netmask",
Gateway: "fake-resolved-gateway",
}
})
It("returns settings from the settings file with resolved network", func() {
err := service.LoadSettings()
Expect(err).ToNot(HaveOccurred())
Expect(service.GetSettings()).To(Equal(Settings{
AgentID: "some-agent-id",
Networks: Networks{
"fake-net-1": Network{
Type: NetworkTypeDynamic,
IP: "fake-resolved-ip",
Netmask: "fake-resolved-netmask",
Gateway: "fake-resolved-gateway",
Resolved: true,
},
},
}))
})
})
})
Context("when non-unmarshallable settings file exists", func() {
It("returns any error from the fetcher", func() {
fs.WriteFile("/setting/path.json", []byte(`$%^&*(`))
err := service.LoadSettings()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-fetch-error"))
Expect(service.GetSettings()).To(Equal(Settings{}))
})
})
Context("when no settings file exists", func() {
It("returns any error from the fetcher", func() {
err := service.LoadSettings()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-fetch-error"))
Expect(service.GetSettings()).To(Equal(Settings{}))
})
})
})
})
Describe("InvalidateSettings", func() {
It("removes the settings file", func() {
fakeSettingsSource.SettingsValue = Settings{}
fakeSettingsSource.SettingsErr = nil
service, fs := buildService()
fs.WriteFile("/setting/path.json", []byte(`{}`))
err := service.InvalidateSettings()
Expect(err).ToNot(HaveOccurred())
Expect(fs.FileExists("/setting/path.json")).To(BeFalse())
})
It("returns err if removing settings file errored", func() {
fakeSettingsSource.SettingsValue = Settings{}
fakeSettingsSource.SettingsErr = nil
service, fs := buildService()
fs.RemoveAllError = errors.New("fs-remove-all-error")
err := service.InvalidateSettings()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fs-remove-all-error"))
})
})
Describe("GetSettings", func() {
var (
loadedSettings Settings
service Service
)
BeforeEach(func() {
loadedSettings = Settings{AgentID: "some-agent-id"}
})
JustBeforeEach(func() {
fakeSettingsSource.SettingsValue = loadedSettings
fakeSettingsSource.SettingsErr = nil
service, _ = buildService()
err := service.LoadSettings()
Expect(err).NotTo(HaveOccurred())
})
Context("when there is are no dynamic networks", func() {
It("returns settings without modifying any networks", func() {
Expect(service.GetSettings()).To(Equal(loadedSettings))
})
It("does not try to determine default network", func() {
_ = service.GetSettings()
Expect(fakeDefaultNetworkResolver.GetDefaultNetworkCalled).To(BeFalse())
})
})
Context("when there is network that needs to be resolved (ip, netmask, or mac are not set)", func() {
BeforeEach(func() {
loadedSettings = Settings{
Networks: map[string]Network{
"fake-net1": Network{
IP: "fake-net1-ip",
Netmask: "fake-net1-netmask",
Mac: "fake-net1-mac",
Gateway: "fake-net1-gateway",
},
"fake-net2": Network{
Gateway: "fake-net2-gateway",
DNS: []string{"fake-net2-dns"},
},
},
}
})
Context("when default network can be retrieved", func() {
BeforeEach(func() {
fakeDefaultNetworkResolver.GetDefaultNetworkNetwork = Network{
IP: "fake-resolved-ip",
Netmask: "fake-resolved-netmask",
Gateway: "fake-resolved-gateway",
}
})
It("returns settings with resolved dynamic network ip, netmask, gateway and keeping everything else the same", func() {
settings := service.GetSettings()
Expect(settings).To(Equal(Settings{
Networks: map[string]Network{
"fake-net1": Network{
IP: "fake-net1-ip",
Netmask: "fake-net1-netmask",
Mac: "fake-net1-mac",
Gateway: "fake-net1-gateway",
},
"fake-net2": Network{
IP: "fake-resolved-ip",
Netmask: "fake-resolved-netmask",
Gateway: "fake-resolved-gateway",
DNS: []string{"fake-net2-dns"},
Resolved: true,
},
},
}))
})
})
Context("when default network fails to be retrieved", func() {
BeforeEach(func() {
fakeDefaultNetworkResolver.GetDefaultNetworkErr = errors.New("fake-get-default-network-err")
})
It("returns error", func() {
settings := service.GetSettings()
Expect(settings).To(Equal(loadedSettings))
})
})
})
})
})
}
Describe("RunCommand", func() {
It("cleans logs directory", func() {
err := fs.MkdirAll("/fake-base-dir/fake-log-dir-name/", os.FileMode(0750))
Expect(err).ToNot(HaveOccurred())
err = fs.WriteFile("/fake-base-dir/fake-log-dir-name/old-file", []byte("test-data"))
Expect(err).ToNot(HaveOccurred())
_, err = runner.RunCommand("fake-log-dir-name", "fake-log-file-name", cmd)
Expect(err).ToNot(HaveOccurred())
Expect(fs.FileExists("/fake-base-dir/fake-log-dir-name/old-file")).To(BeFalse())
})
It("returns an error if it fails to remove previous logs directory", func() {
fs.RemoveAllError = errors.New("fake-remove-all-error")
_, err := runner.RunCommand("fake-log-dir-name", "fake-log-file-name", cmd)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-remove-all-error"))
})
It("returns an error if it fails to create logs directory", func() {
fs.MkdirAllError = errors.New("fake-mkdir-all-error")
_, err := runner.RunCommand("fake-log-dir-name", "fake-log-file-name", cmd)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-mkdir-all-error"))
})
It("executes given command", func() {
Describe("Delete", func() {
It("removes the blob from the blobstore", func() {
fs.WriteFileString("/fake-file.txt", "fake-file-contents")
blobID, _, err := blobstore.Create("/fake-file.txt")
Expect(err).ToNot(HaveOccurred())
_, err = blobstore.Get(blobID, "")
Expect(err).ToNot(HaveOccurred())
err = blobstore.Delete(blobID)
Expect(err).ToNot(HaveOccurred())
_, err = blobstore.Get(blobID, "")
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("doesn't exist"))
})
It("returns an error if removing the blob fails", func() {
fs.RemoveAllError = errors.New("failed to remove")
fs.WriteFileString("/fake-file.txt", "fake-file-contents")
blobID, _, err := blobstore.Create("/fake-file.txt")
Expect(err).ToNot(HaveOccurred())
err = blobstore.Delete(blobID)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("failed to remove"))
})
})
})
func init() {
Describe("prepareNetworkChange", func() {
var (
action PrepareNetworkChangeAction
fs *fakesys.FakeFileSystem
settingsService *fakesettings.FakeSettingsService
)
BeforeEach(func() {
fs = fakesys.NewFakeFileSystem()
settingsService = &fakesettings.FakeSettingsService{}
action = NewPrepareNetworkChange(fs, settingsService, fakeactions.NewFakeAgentKiller())
})
It("is synchronous", func() {
Expect(action.IsAsynchronous()).To(BeFalse())
})
It("is not persistent", func() {
Expect(action.IsPersistent()).To(BeFalse())
})
It("invalidates settings so that load settings cannot fall back on old settings", func() {
resp, err := action.Run()
Expect(err).NotTo(HaveOccurred())
Expect(resp).To(Equal("ok"))
Expect(settingsService.SettingsWereInvalidated).To(BeTrue())
})
Context("when settings invalidation succeeds", func() {
Context("when the network rules file can be removed", func() {
It("removes the network rules file", func() {
fs.WriteFile("/etc/udev/rules.d/70-persistent-net.rules", []byte{})
resp, err := action.Run()
Expect(err).NotTo(HaveOccurred())
Expect(resp).To(Equal("ok"))
Expect(fs.FileExists("/etc/udev/rules.d/70-persistent-net.rules")).To(BeFalse())
})
})
Context("when the network rules file cannot be removed", func() {
BeforeEach(func() {
fs.RemoveAllError = errors.New("fake-remove-all-error")
})
It("returns error from removing the network rules file", func() {
resp, err := action.Run()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-remove-all-error"))
Expect(resp).To(BeNil())
})
})
})
Context("when settings invalidation fails", func() {
BeforeEach(func() {
settingsService.InvalidateSettingsError = errors.New("fake-invalidate-error")
})
It("returns error early if settings err invalidating", func() {
resp, err := action.Run()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-invalidate-error"))
Expect(resp).To(BeNil())
})
It("does not remove the network rules file", func() {
fs.WriteFile("/etc/udev/rules.d/70-persistent-net.rules", []byte{})
action.Run()
Expect(fs.FileExists("/etc/udev/rules.d/70-persistent-net.rules")).To(BeTrue())
})
})
})
}