fs.WriteFileString("/fake-file.txt", "fake-file-contents")
uuidGen.GeneratedUuid = "some-uuid"
blobID, fingerprint, err := blobstore.Create("/fake-file.txt")
Expect(err).ToNot(HaveOccurred())
Expect(blobID).To(Equal("some-uuid"))
Expect(fingerprint).To(BeEmpty())
writtenFileStats := fs.GetFileTestStat(fakeBlobstorePath + "/some-uuid")
Expect(writtenFileStats).ToNot(BeNil())
Expect("fake-file-contents").To(Equal(writtenFileStats.StringContents()))
})
It("local create errs when generating blob id errs", func() {
uuidGen.GenerateError = errors.New("some-unfortunate-error")
_, _, err := blobstore.Create("some/file")
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("some-unfortunate-error"))
})
It("local create errs when copy file errs", func() {
fs.WriteFileString("/fake-file.txt", "fake-file-contents")
uuidGen.GeneratedUuid = "some-uuid"
fs.CopyFileError = errors.New("fake-copy-file-error")
_, _, err := blobstore.Create("/fake-file.txt")
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-copy-file-error"))
func init() {
Describe("asyncTaskService", func() {
var (
uuidGen *fakeuuid.FakeGenerator
service Service
)
BeforeEach(func() {
uuidGen = &fakeuuid.FakeGenerator{}
service = NewAsyncTaskService(uuidGen, boshlog.NewLogger(boshlog.LEVEL_NONE))
})
Describe("StartTask", func() {
startAndWaitForTaskCompletion := func(task Task) Task {
service.StartTask(task)
for task.State == TaskStateRunning {
time.Sleep(time.Nanosecond)
task, _ = service.FindTaskWithId(task.Id)
}
return task
}
It("sets return value on a successful task", func() {
runFunc := func() (interface{}, error) { return 123, nil }
task, err := service.CreateTask(runFunc, nil)
Expect(err).ToNot(HaveOccurred())
task = startAndWaitForTaskCompletion(task)
Expect(task.State).To(BeEquivalentTo(TaskStateDone))
Expect(task.Value).To(Equal(123))
Expect(task.Error).To(BeNil())
})
It("sets task error on a failing task", func() {
err := errors.New("fake-error")
runFunc := func() (interface{}, error) { return nil, err }
task, createErr := service.CreateTask(runFunc, nil)
Expect(createErr).ToNot(HaveOccurred())
task = startAndWaitForTaskCompletion(task)
Expect(task.State).To(BeEquivalentTo(TaskStateFailed))
Expect(task.Value).To(BeNil())
Expect(task.Error).To(Equal(err))
})
Describe("CreateTask", func() {
It("can run task created with CreateTask which does not have end func", func() {
ranFunc := false
runFunc := func() (interface{}, error) { ranFunc = true; return nil, nil }
task, err := service.CreateTask(runFunc, nil)
Expect(err).ToNot(HaveOccurred())
startAndWaitForTaskCompletion(task)
Expect(ranFunc).To(BeTrue())
})
It("can run task created with CreateTask which has end func", func() {
ranFunc := false
runFunc := func() (interface{}, error) { ranFunc = true; return nil, nil }
ranEndFunc := false
endFunc := func(Task) { ranEndFunc = true }
task, err := service.CreateTask(runFunc, endFunc)
Expect(err).ToNot(HaveOccurred())
startAndWaitForTaskCompletion(task)
Expect(ranFunc).To(BeTrue())
Expect(ranEndFunc).To(BeTrue())
})
It("returns an error if generate uuid fails", func() {
uuidGen.GenerateError = errors.New("fake-generate-uuid-error")
_, err := service.CreateTask(nil, nil)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-generate-uuid-error"))
})
})
Describe("CreateTaskWithId", func() {
It("can run task created with CreateTaskWithId which does not have end func", func() {
ranFunc := false
runFunc := func() (interface{}, error) { ranFunc = true; return nil, nil }
task := service.CreateTaskWithId("fake-task-id", runFunc, nil)
startAndWaitForTaskCompletion(task)
Expect(ranFunc).To(BeTrue())
})
It("can run task created with CreateTaskWithId which has end func", func() {
ranFunc := false
runFunc := func() (interface{}, error) { ranFunc = true; return nil, nil }
ranEndFunc := false
endFunc := func(Task) { ranEndFunc = true }
task := service.CreateTaskWithId("fake-task-id", runFunc, endFunc)
startAndWaitForTaskCompletion(task)
Expect(ranFunc).To(BeTrue())
Expect(ranEndFunc).To(BeTrue())
})
})
It("can process many tasks simultaneously", func() {
taskFunc := func() (interface{}, error) {
time.Sleep(10 * time.Millisecond)
return nil, nil
}
ids := []string{}
for id := 1; id < 200; id++ {
idStr := fmt.Sprintf("%d", id)
uuidGen.GeneratedUuid = idStr
ids = append(ids, idStr)
task, err := service.CreateTask(taskFunc, nil)
Expect(err).ToNot(HaveOccurred())
go service.StartTask(task)
}
for {
allDone := true
for _, id := range ids {
task, _ := service.FindTaskWithId(id)
if task.State != TaskStateDone {
allDone = false
break
}
}
if allDone {
break
}
time.Sleep(200 * time.Millisecond)
}
})
})
Describe("CreateTask", func() {
It("creates a task with auto-assigned id", func() {
uuidGen.GeneratedUuid = "fake-uuid"
runFunc := func() (interface{}, error) { return nil, nil }
endFunc := func(Task) {}
task, err := service.CreateTask(runFunc, endFunc)
Expect(err).ToNot(HaveOccurred())
Expect(task.Id).To(Equal("fake-uuid"))
Expect(task.State).To(Equal(TaskStateRunning))
})
})
Describe("CreateTaskWithId", func() {
It("creates a task with given id", func() {
runFunc := func() (interface{}, error) { return nil, nil }
endFunc := func(Task) {}
task := service.CreateTaskWithId("fake-task-id", runFunc, endFunc)
Expect(task.Id).To(Equal("fake-task-id"))
Expect(task.State).To(Equal(TaskStateRunning))
})
})
})
}
expectedHMRequest := fakembus.HMRequest{
Topic: "alert",
Payload: boshalert.Alert{
ID: "fake-uuid",
Severity: boshalert.SeverityWarning,
Title: "SSH Login",
Summary: "Accepted publickey for tests",
CreatedAt: presetNow.Unix(),
},
}
Expect(handler.HMRequests()).To(Equal([]fakembus.HMRequest{expectedHMRequest}))
})
It("returns error if generating uuid fails", func() {
uuidGenerator.GenerateError = errors.New("fake-generate-err")
err := alertSender.SendSSHAlert(msg)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-generate-err"))
})
It("returns error if sending alert to health manager fails", func() {
handler.SendToHealthManagerErr = errors.New("fake-send-to-hm-err")
err := alertSender.SendSSHAlert(msg)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-send-to-hm-err"))
})
})