Mailspring/spec/tasks/send-draft-spec.coffee
Evan Morikawa 531118ac5c fix(tasks): don't continue if dependent task fails
Summary:
Fixes T4291

If I made a final edit to a pre-existing draft and sent, we'd queue a
`SyncbackDraftTask` before a `SendDraftTask`. This is important because
since we have a valid draft `server_id`, the `SendDraftTask` will send by
server_id, not by POSTing the whole body.

If the `SyncbackDraftTask` fails, then we had a very serious issue whereby
the `SendDraftTask` would keep on sending. Unfortunately the server never
got the latest changes and sent the wrong version of the draft. This
incorrect version would show up later when the `/send` endpoint returned
the message that got actually sent.

The solution was to make any queued `SendDraftTask` fail if a dependent
`SyncbackDraftTask` failed.

This meant we needed to make the requirements for `shouldWaitForTask`
stricter, and block if tasks failed.

Unfortunatley there was no infrastructure in place to do this.

The first change was to change `shouldWaitForTask` to `isDependentTask`.
If we're going to fail when a dependent task fails, I wanted the method
name to reflect this.

Now, if a dependent task fails, we recursively check the dependency tree
(and check for cycles) and `dequeue` anything that needed that to succeed.

I chose `dequeue` as the default action because it seemed as though all
current uses of `shouldWaitForTask` really should bail if their
dependencies fail. It's possible you don't want your task dequeued in this
dependency case. You can return the special `Task.DO_NOT_DEQUEUE_ME`
constant from the `onDependentTaskError` method.

When a task gets dequeued because of the reason above, the
`onDependentTaskError` callback gets fired. This gives tasks like the
`SendDraftTask` a chance to notify the user that it bailed. Not all tasks
need to notify.

The next big issue was a better way to determine if a task truely errored
to the point that we need to dequeue dependencies. In the Developer Status
area we were showing tasks that had errored as "Green" because we caught
the error and resolved with `Task.Status.Finished`. This used to be fine
since nothing life-or-death cared if a task errored or not. Now that it
might cause abortions down the line, we needed a more robust method then
this.

For one I changed `Task.Status.Finished` to a variety of finish types
including `Task.Status.Success`. The way you "error" out is to `throw` or
`Promise.reject` an `Error` object from the `performRemote` method. This
allows us to propagate API errors up, and acts as a safety net that can
catch any malformed code or unexpected responses.

The developer bar now shows a much richer set of statuses instead of a
binary one, which was REALLY helpful in debugging this. We also record
when a Task got dequeued because of the conditions introduced here.

Once all this was working we still had an issue of sending old drafts.

If after a `SyncbackDraftTask` failed, now we'd block the send and notify
the users as such. However, if we tried to send again, there was a
separate issue whereby we wouldn't queue another `SyncbackDraftTask` to
update the server with the latest information. Since our changes were
persisted to the DB, we thought we had no changes, and therefore didn't
need to queue a `SyncbackDraftTask`.

The fix to this is to always force the creation of a `SyncbackDraftTask`
before send regardless of the state of the `DraftStoreProxy`.

Test Plan: new tests. Lots of manual testing

Reviewers: bengotow

Reviewed By: bengotow

Subscribers: mg

Maniphest Tasks: T4291

Differential Revision: https://phab.nylas.com/D2156
2015-10-21 10:33:43 -07:00

296 lines
11 KiB
CoffeeScript

NylasAPI = require '../../src/flux/nylas-api'
Actions = require '../../src/flux/actions'
SyncbackDraftTask = require '../../src/flux/tasks/syncback-draft'
FileUploadTask = require '../../src/flux/tasks/file-upload-task'
SendDraftTask = require '../../src/flux/tasks/send-draft'
DatabaseStore = require '../../src/flux/stores/database-store'
{APIError} = require '../../src/flux/errors'
Message = require '../../src/flux/models/message'
TaskQueue = require '../../src/flux/stores/task-queue'
SoundRegistry = require '../../src/sound-registry'
_ = require 'underscore'
describe "SendDraftTask", ->
describe "isDependentTask", ->
it "should return true if there are SyncbackDraftTasks for the same draft", ->
@draftA = new Message
version: '1'
id: '1233123AEDF1'
accountId: 'A12ADE'
subject: 'New Draft'
draft: true
to:
name: 'Dummy'
email: 'dummy@nylas.com'
@draftB = new Message
version: '1'
id: '1233OTHERDRAFT'
accountId: 'A12ADE'
subject: 'New Draft'
draft: true
to:
name: 'Dummy'
email: 'dummy@nylas.com'
@saveA = new SyncbackDraftTask('localid-A')
@saveB = new SyncbackDraftTask('localid-B')
@sendA = new SendDraftTask('localid-A')
expect(@sendA.isDependentTask(@saveA)).toBe(true)
describe "performLocal", ->
it "should throw an exception if the first parameter is not a clientId", ->
badTasks = [new SendDraftTask()]
goodTasks = [new SendDraftTask('localid-a')]
caught = []
succeeded = []
runs ->
[].concat(badTasks, goodTasks).forEach (task) ->
task.performLocal()
.then -> succeeded.push(task)
.catch (err) -> caught.push(task)
waitsFor ->
succeeded.length + caught.length == badTasks.length + goodTasks.length
runs ->
expect(caught).toEqual(badTasks)
expect(succeeded).toEqual(goodTasks)
describe "performRemote", ->
beforeEach ->
@draftClientId = "local-123"
@serverMessageId = '1233123AEDF1'
@draft = new Message
version: 1
clientId: @draftClientId
accountId: 'A12ADE'
subject: 'New Draft'
draft: true
body: 'hello world'
to:
name: 'Dummy'
email: 'dummy@nylas.com'
response =
version: 2
id: @serverMessageId
account_id: 'A12ADE'
subject: 'New Draft'
body: 'hello world'
to:
name: 'Dummy'
email: 'dummy@nylas.com'
@task = new SendDraftTask(@draftClientId)
spyOn(NylasAPI, 'makeRequest').andCallFake (options) =>
options.success?(response)
Promise.resolve(response)
spyOn(DatabaseStore, 'run').andCallFake (klass, id) =>
Promise.resolve(@draft)
spyOn(DatabaseStore, 'unpersistModel').andCallFake (draft) ->
Promise.resolve()
spyOn(DatabaseStore, 'persistModel').andCallFake (draft) ->
Promise.resolve()
spyOn(SoundRegistry, "playSound")
spyOn(Actions, "postNotification")
spyOn(Actions, "sendDraftSuccess")
it "should notify the draft was sent", ->
waitsForPromise => @task.performRemote().then =>
args = Actions.sendDraftSuccess.calls[0].args[0]
expect(args.draftClientId).toBe @draftClientId
it "get an object back on success", ->
waitsForPromise => @task.performRemote().then =>
args = Actions.sendDraftSuccess.calls[0].args[0]
expect(args.newMessage.id).toBe @serverMessageId
it "should play a sound", ->
spyOn(atom.config, "get").andReturn true
waitsForPromise => @task.performRemote().then ->
expect(atom.config.get).toHaveBeenCalledWith("core.sending.sounds")
expect(SoundRegistry.playSound).toHaveBeenCalledWith("send")
it "shouldn't play a sound if the config is disabled", ->
spyOn(atom.config, "get").andReturn false
waitsForPromise => @task.performRemote().then ->
expect(atom.config.get).toHaveBeenCalledWith("core.sending.sounds")
expect(SoundRegistry.playSound).not.toHaveBeenCalled()
it "should start an API request to /send", ->
waitsForPromise =>
@task.performRemote().then =>
expect(NylasAPI.makeRequest.calls.length).toBe(1)
options = NylasAPI.makeRequest.mostRecentCall.args[0]
expect(options.path).toBe("/send")
expect(options.accountId).toBe(@draft.accountId)
expect(options.method).toBe('POST')
it "should locally convert the draft to a message on send", ->
expect(@draft.clientId).toBe @draftClientId
expect(@draft.serverId).toBeUndefined()
waitsForPromise =>
@task.performRemote().then =>
expect(DatabaseStore.persistModel).toHaveBeenCalled()
model = DatabaseStore.persistModel.calls[0].args[0]
expect(model.clientId).toBe @draftClientId
expect(model.serverId).toBe @serverMessageId
expect(model.draft).toBe false
describe "when the draft has been saved", ->
it "should send the draft ID and version", ->
waitsForPromise =>
@task.performRemote().then =>
expect(NylasAPI.makeRequest.calls.length).toBe(1)
options = NylasAPI.makeRequest.mostRecentCall.args[0]
expect(options.body.version/1).toBe(1)
expect(options.body.draft_id).toBe(@draft.serverId)
describe "when the draft has not been saved", ->
beforeEach ->
@draft = new Message
serverId: null
clientId: @draftClientId
accountId: 'A12ADE'
subject: 'New Draft'
draft: true
body: 'hello world'
to:
name: 'Dummy'
email: 'dummy@nylas.com'
@task = new SendDraftTask(@draftClientId)
it "should send the draft JSON", ->
waitsForPromise =>
expectedJSON = @draft.toJSON()
@task.performRemote().then =>
expect(NylasAPI.makeRequest.calls.length).toBe(1)
options = NylasAPI.makeRequest.mostRecentCall.args[0]
expect(options.body).toEqual(expectedJSON)
it "should always send the draft body in the request body (joined attribute check)", ->
waitsForPromise =>
@task.performRemote().then =>
expect(NylasAPI.makeRequest.calls.length).toBe(1)
options = NylasAPI.makeRequest.mostRecentCall.args[0]
expect(options.body.body).toBe('hello world')
it "should pass returnsModel:false", ->
waitsForPromise =>
@task.performRemote().then ->
expect(NylasAPI.makeRequest.calls.length).toBe(1)
options = NylasAPI.makeRequest.mostRecentCall.args[0]
expect(options.returnsModel).toBe(false)
it "should write the saved message to the database with the same client ID", ->
waitsForPromise =>
@task.performRemote().then =>
expect(DatabaseStore.persistModel).toHaveBeenCalled()
expect(DatabaseStore.persistModel.mostRecentCall.args[0].clientId).toEqual(@draftClientId)
expect(DatabaseStore.persistModel.mostRecentCall.args[0].serverId).toEqual('1233123AEDF1')
expect(DatabaseStore.persistModel.mostRecentCall.args[0].draft).toEqual(false)
describe "failing performRemote", ->
beforeEach ->
@draft = new Message
version: '1'
clientId: @draftClientId
accountId: 'A12ADE'
threadId: 'threadId'
replyToMessageId: 'replyToMessageId'
subject: 'New Draft'
body: 'body'
draft: true
to:
name: 'Dummy'
email: 'dummy@nylas.com'
@task = new SendDraftTask("local-1234")
spyOn(Actions, "dequeueTask")
spyOn(DatabaseStore, 'unpersistModel').andCallFake (draft) ->
Promise.resolve()
spyOn(DatabaseStore, 'persistModel').andCallFake (draft) ->
Promise.resolve()
describe "when the server responds with `Invalid message public ID`", ->
it "should resend the draft without the reply_to_message_id key set", ->
spyOn(DatabaseStore, 'run').andCallFake =>
Promise.resolve(@draft)
spyOn(NylasAPI, 'makeRequest').andCallFake ({body, success, error}) =>
if body.reply_to_message_id
err = new APIError(body: "Invalid message public id", statusCode: 400)
error?(err)
return Promise.reject(err)
else
success?(body)
return Promise.resolve(body)
waitsForPromise =>
@task.performRemote().then =>
expect(NylasAPI.makeRequest.calls.length).toBe(2)
expect(NylasAPI.makeRequest.calls[1].args[0].body.thread_id).toBe('threadId')
expect(NylasAPI.makeRequest.calls[1].args[0].body.reply_to_message_id).toBe(null)
describe "when the server responds with `Invalid thread ID`", ->
it "should resend the draft without the thread_id or reply_to_message_id keys set", ->
spyOn(DatabaseStore, 'run').andCallFake => Promise.resolve(@draft)
spyOn(NylasAPI, 'makeRequest').andCallFake ({body, success, error}) =>
new Promise (resolve, reject) =>
if body.thread_id
err = new APIError(body: "Invalid thread public id", statusCode: 400)
error?(err)
reject(err)
else
success?(body)
resolve(body)
waitsForPromise =>
@task.performRemote().then =>
expect(NylasAPI.makeRequest.calls.length).toBe(2)
expect(NylasAPI.makeRequest.calls[1].args[0].body.thread_id).toBe(null)
expect(NylasAPI.makeRequest.calls[1].args[0].body.reply_to_message_id).toBe(null)
.catch (err) =>
console.log(err.trace)
it "throws an error if the draft can't be found", ->
spyOn(DatabaseStore, 'run').andCallFake (klass, clientId) ->
Promise.resolve()
waitsForPromise =>
@task.performRemote().catch (error) ->
expect(error.message).toBeDefined()
it "throws an error if the draft isn't saved", ->
spyOn(DatabaseStore, 'run').andCallFake (klass, clientId) ->
Promise.resolve(serverId: null)
waitsForPromise =>
@task.performRemote().catch (error) ->
expect(error.message).toBeDefined()
it "throws an error if the DB store has issues", ->
spyOn(DatabaseStore, 'run').andCallFake (klass, clientId) ->
Promise.reject("DB error")
waitsForPromise =>
@task.performRemote().catch (error) ->
expect(error).toBe "DB error"
describe "failing dependent task", ->
it "notifies the user that the required draft save failed", ->
task = new SendDraftTask("local-1234")
syncback = new SyncbackDraftTask('local-1234')
spyOn(task, "_notifyUserOfError")
task.onDependentTaskError(syncback, new Error("Oh no"))
expect(task._notifyUserOfError).toHaveBeenCalled()
expect(task._notifyUserOfError.calls.length).toBe 1
it "notifies the user that the required file upload failed", ->
task = new SendDraftTask("local-1234")
fileUploadTask = new FileUploadTask('/dev/null', 'local-1234')
spyOn(task, "_notifyUserOfError")
task.onDependentTaskError(fileUploadTask, new Error("Oh no"))
expect(task._notifyUserOfError).toHaveBeenCalled()
expect(task._notifyUserOfError.calls.length).toBe 1