func init() {
Describe("concreteV1Service", func() {
var (
fs *fakesys.FakeFileSystem
platform *fakeplatform.FakePlatform
specPath = "/spec.json"
service V1Service
)
BeforeEach(func() {
fs = fakesys.NewFakeFileSystem()
platform = fakeplatform.NewFakePlatform()
service = NewConcreteV1Service(fs, platform, specPath)
})
Describe("Get", func() {
Context("when filesystem has a spec file", func() {
BeforeEach(func() {
fs.WriteFileString(specPath, `{"deployment":"fake-deployment-name"}`)
})
It("reads spec from filesystem", func() {
spec, err := service.Get()
Expect(err).ToNot(HaveOccurred())
Expect(spec).To(Equal(V1ApplySpec{Deployment: "fake-deployment-name"}))
})
It("returns error if reading spec from filesystem errs", func() {
fs.ReadFileError = errors.New("fake-read-error")
spec, err := service.Get()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-read-error"))
Expect(spec).To(Equal(V1ApplySpec{}))
})
})
Context("when filesystem does not have a spec file", func() {
It("reads spec from filesystem", func() {
spec, err := service.Get()
Expect(err).ToNot(HaveOccurred())
Expect(spec).To(Equal(V1ApplySpec{}))
})
})
})
Describe("Set", func() {
newSpec := V1ApplySpec{Deployment: "fake-deployment-name"}
It("writes spec to filesystem", func() {
err := service.Set(newSpec)
Expect(err).ToNot(HaveOccurred())
specPathStats := fs.GetFileTestStat(specPath)
Expect(specPathStats).ToNot(BeNil())
boshassert.MatchesJSONBytes(GinkgoT(), newSpec, specPathStats.Content)
})
It("returns error if writing spec to filesystem errs", func() {
fs.WriteToFileError = errors.New("fake-write-error")
err := service.Set(newSpec)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-write-error"))
})
})
Describe("ResolveDynamicNetworks", func() {
Context("when there is are no dynamic networks", func() {
unresolvedSpec := V1ApplySpec{
Deployment: "fake-deployment",
NetworkSpecs: map[string]NetworkSpec{
"fake-net": NetworkSpec{
Fields: map[string]interface{}{"ip": "fake-net-ip"},
},
},
}
It("returns spec without modifying any networks", func() {
spec, err := service.ResolveDynamicNetworks(unresolvedSpec)
Expect(err).ToNot(HaveOccurred())
Expect(spec).To(Equal(V1ApplySpec{
Deployment: "fake-deployment",
NetworkSpecs: map[string]NetworkSpec{
"fake-net": NetworkSpec{
Fields: map[string]interface{}{"ip": "fake-net-ip"},
},
},
}))
})
})
Context("when there is one dynamic network", func() {
unresolvedSpec := V1ApplySpec{
Deployment: "fake-deployment",
NetworkSpecs: map[string]NetworkSpec{
"fake-net1": NetworkSpec{
Fields: map[string]interface{}{
"ip": "fake-net1-ip",
"netmask": "fake-net1-netmask",
"gateway": "fake-net1-gateway",
},
},
"fake-net2": NetworkSpec{
Fields: map[string]interface{}{
"type": NetworkSpecTypeDynamic,
"ip": "fake-net2-ip",
"netmask": "fake-net2-netmask",
"gateway": "fake-net2-gateway",
},
},
},
}
Context("when default network can be retrieved", func() {
BeforeEach(func() {
platform.GetDefaultNetworkNetwork = boshsettings.Network{
IP: "fake-resolved-ip",
Netmask: "fake-resolved-netmask",
Gateway: "fake-resolved-gateway",
}
})
It("returns spec with modified dynamic network and keeping everything else the same", func() {
spec, err := service.ResolveDynamicNetworks(unresolvedSpec)
Expect(err).ToNot(HaveOccurred())
Expect(spec).To(Equal(V1ApplySpec{
Deployment: "fake-deployment",
NetworkSpecs: map[string]NetworkSpec{
"fake-net1": NetworkSpec{
Fields: map[string]interface{}{
"ip": "fake-net1-ip",
"netmask": "fake-net1-netmask",
"gateway": "fake-net1-gateway",
},
},
"fake-net2": NetworkSpec{
Fields: map[string]interface{}{
"type": NetworkSpecTypeDynamic,
"ip": "fake-resolved-ip",
"netmask": "fake-resolved-netmask",
"gateway": "fake-resolved-gateway",
},
},
},
}))
})
})
Context("when default network fails to be retrieved", func() {
BeforeEach(func() {
platform.GetDefaultNetworkErr = errors.New("fake-get-default-network-err")
})
It("returns error", func() {
spec, err := service.ResolveDynamicNetworks(unresolvedSpec)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-get-default-network-err"))
Expect(spec).To(Equal(V1ApplySpec{}))
})
})
})
Context("when there is are multiple dynamic networks", func() {
unresolvedSpec := V1ApplySpec{
NetworkSpecs: map[string]NetworkSpec{
"fake-net1": NetworkSpec{
Fields: map[string]interface{}{"type": NetworkSpecTypeDynamic},
},
"fake-net2": NetworkSpec{
Fields: map[string]interface{}{"type": NetworkSpecTypeDynamic},
},
},
}
It("returns error because multiple dynamic networks are not supported", func() {
spec, err := service.ResolveDynamicNetworks(unresolvedSpec)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("Multiple dynamic networks are not supported"))
Expect(spec).To(Equal(V1ApplySpec{}))
})
})
})
})
}
func init() {
Describe("concreteServiceProvider", func() {
var (
platform *fakeplatform.FakePlatform
)
Describe("NewService", func() {
It("returns service with settings.json as its settings path", func() {
// Cannot compare fetcher functions since function comparison is problematic
fs := fakesys.NewFakeFileSystem()
logger := boshlog.NewLogger(boshlog.LevelNone)
service := NewServiceProvider().NewService(fs, "/setting/path", nil, platform, logger)
Expect(service).To(Equal(NewService(fs, "/setting/path/settings.json", nil, platform, logger)))
})
})
})
Describe("concreteService", func() {
var (
fs *fakesys.FakeFileSystem
platform *fakeplatform.FakePlatform
)
BeforeEach(func() {
fs = fakesys.NewFakeFileSystem()
platform = fakeplatform.NewFakePlatform()
})
buildService := func(fetcher SettingsFetcher) (Service, *fakesys.FakeFileSystem) {
logger := boshlog.NewLogger(boshlog.LevelNone)
service := NewService(fs, "/setting/path", fetcher, platform, logger)
return service, fs
}
Describe("LoadSettings", func() {
var (
fetchedSettings Settings
fetcherFuncErr error
service Service
)
BeforeEach(func() {
fetchedSettings = Settings{}
fetcherFuncErr = nil
})
JustBeforeEach(func() {
fetcherFunc := func() (Settings, error) { return fetchedSettings, fetcherFuncErr }
service, fs = buildService(fetcherFunc)
})
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")
Expect(err).NotTo(HaveOccurred())
Expect(fileContent).To(Equal(json))
})
It("returns any error from writing to the setting file", func() {
fs.WriteToFileError = 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 contain multiple dynamic networks", func() {
BeforeEach(func() {
fetchedSettings.Networks = Networks{
"fake-net-1": Network{Type: NetworkTypeDynamic},
"fake-net-2": Network{Type: NetworkTypeDynamic},
}
})
It("returns error because multiple dynamic networks are not supported", func() {
err := service.LoadSettings()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("Multiple dynamic networks are not supported"))
})
})
})
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", []byte(`{
"agent_id":"some-agent-id",
"networks": {"fake-net-1": {"type": "dynamic"}}
}`))
})
It("returns settings from the settings file", 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},
},
}))
})
})
Context("when settings contain multiple dynamic networks", func() {
BeforeEach(func() {
fs.WriteFile("/setting/path", []byte(`{
"agent_id":"some-agent-id",
"networks": {
"fake-net-1": {"type": "dynamic"},
"fake-net-2": {"type": "dynamic"}
}
}`))
})
It("returns error because multiple dynamic networks are not supported", func() {
err := service.LoadSettings()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("Multiple dynamic networks are not supported"))
})
})
})
Context("when non-unmarshallable settings file exists", func() {
It("returns any error from the fetcher", func() {
fs.WriteFile("/setting/path", []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() {
service, fs := buildService(nil)
fs.WriteFile("/setting/path", []byte(`{}`))
err := service.InvalidateSettings()
Expect(err).ToNot(HaveOccurred())
Expect(fs.FileExists("/setting/path")).To(BeFalse())
})
It("returns err if removing settings file errored", func() {
service, fs := buildService(nil)
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() {
service, _ = buildService(func() (Settings, error) { return loadedSettings, nil })
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(platform.GetDefaultNetworkCalled).To(BeFalse())
})
})
Context("when there is one dynamic network", func() {
BeforeEach(func() {
loadedSettings = Settings{
Networks: map[string]Network{
"fake-net1": Network{
IP: "fake-net1-ip",
Netmask: "fake-net1-netmask",
Gateway: "fake-net1-gateway",
},
"fake-net2": Network{
Type: "dynamic",
IP: "fake-net2-ip",
Netmask: "fake-net2-netmask",
Gateway: "fake-net2-gateway",
DNS: []string{"fake-net2-dns"},
},
},
}
})
Context("when default network can be retrieved", func() {
BeforeEach(func() {
platform.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",
Gateway: "fake-net1-gateway",
},
"fake-net2": Network{
Type: "dynamic",
IP: "fake-resolved-ip",
Netmask: "fake-resolved-netmask",
Gateway: "fake-resolved-gateway",
DNS: []string{"fake-net2-dns"},
},
},
}))
})
})
Context("when default network fails to be retrieved", func() {
BeforeEach(func() {
platform.GetDefaultNetworkErr = errors.New("fake-get-default-network-err")
})
It("returns error", func() {
settings := service.GetSettings()
Expect(settings).To(Equal(loadedSettings))
})
})
})
})
})
}