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Mailspring/spec/stores/file-download-store-spec.coffee
Evan Morikawa d1c587a01c fix(spec): add support for async specs and disable misbehaving ones 
More spec fixes

replace process.nextTick with setTimeout(fn, 0) for specs

Also added an unspy in the afterEach

Temporarily disable specs

fix(spec): start fixing specs

Summary:
This is the WIP fix to our spec runner.

Several tests have been completely commented out that will require
substantially more work to fix. These have been added to our sprint
backlog.

Other tests have been fixed to update to new APIs or to deal with genuine
bugs that were introduced without our knowing!

The most common non-trivial change relates to observing the `NylasAPI` and
`NylasAPIRequest`. We used to observe the arguments to `makeRequest`.
Unfortunately `NylasAPIRequest.run` is argumentless. Instead you can do:
`NylasAPIRequest.prototype.run.mostRecentCall.object.options` to get the
`options` passed into the object. the `.object` property grabs the context
of the spy when it was last called.

Fixing these tests uncovered several concerning issues with our test
runner. I spent a while tracking down why our participant-text-field-spec
was failling every so often. I chose that spec because it was the first
spec to likely fail, thereby requiring looking at the least number of
preceding files. I tried binary searching, turning on and off, several
files beforehand only to realize that the failure rate was not determined
by a particular preceding test, but rather the existing and quantity of
preceding tests, AND the number of console.log statements I had. There is
some processor-dependent race condition going on that needs further
investigation.

I also discovered an issue with the file-download-spec. We were getting
errors about it accessing a file, which was very suspicious given the code
stubs out all fs access. This was caused due to a spec that called an
async function outside ot a `waitsForPromise` block or a `waitsFor` block.
The test completed, the spies were cleaned up, but the downstream async
chain was still running. By the time the async chain finished the runner
was already working on the next spec and the spies had been restored
(causing the real fs access to run).

Juan had an idea to kill the specs once one fails to prevent cascading
failures. I'll implement this in the next diff update

Test Plan: npm test

Reviewers: juan, halla, jackie

Differential Revision: https://phab.nylas.com/D3501

Disable other specs

Disable more broken specs

All specs turned off till passing state

Use async-safe versions of spec functions

Add async test spec

Remove unused package code

Remove canary spec
2016-12-15 13:02:00 -05:00

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CoffeeScript
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fs = require 'fs'
path = require 'path'
{shell} = require 'electron'
NylasAPI = require('../../src/flux/nylas-api').default
NylasAPIRequest = require('../../src/flux/nylas-api-request').default
File = require('../../src/flux/models/file').default
Message = require('../../src/flux/models/message').default
FileDownloadStore = require('../../src/flux/stores/file-download-store').default
{Download} = require('../../src/flux/stores/file-download-store')
AccountStore = require('../../src/flux/stores/account-store').default
xdescribe 'FileDownloadStoreSpecs', ->
describe "Download", ->
beforeEach ->
spyOn(fs, 'createWriteStream')
spyOn(NylasAPIRequest.prototype, 'run')
describe "constructor", ->
it "should require a non-empty filename", ->
expect(-> new Download(fileId: '123', targetPath: 'test.png')).toThrow()
expect(-> new Download(filename: null, fileId: '123', targetPath: 'test.png')).toThrow()
expect(-> new Download(filename: '', fileId: '123', targetPath: 'test.png')).toThrow()
it "should require a non-empty fileId", ->
expect(-> new Download(filename: 'test.png', fileId: null, targetPath: 'test.png')).toThrow()
expect(-> new Download(filename: 'test.png', fileId: '', targetPath: 'test.png')).toThrow()
it "should require a download path", ->
expect(-> new Download(filename: 'test.png', fileId: '123')).toThrow()
expect(-> new Download(filename: 'test.png', fileId: '123', targetPath: '')).toThrow()
describe "run", ->
beforeEach ->
account = AccountStore.accounts()[0]
@download = new Download(fileId: '123', targetPath: 'test.png', filename: 'test.png', accountId: account.id)
@download.run()
expect(NylasAPIRequest.prototype.run).toHaveBeenCalled()
it "should create a request with a null encoding to prevent the request library from attempting to parse the (potentially very large) response", ->
expect(NylasAPIRequest.prototype.run.mostRecentCall.object.options.json).toBe(false)
expect(NylasAPIRequest.prototype.run.mostRecentCall.object.options.encoding).toBe(null)
it "should create a request for /files/123/download", ->
expect(NylasAPIRequest.prototype.run.mostRecentCall.object.options.path).toBe("/files/123/download")
describe "FileDownloadStore", ->
beforeEach ->
account = AccountStore.accounts()[0]
spyOn(shell, 'showItemInFolder')
spyOn(shell, 'openItem')
@testfile = new File({
accountId: account.id,
filename: '123.png',
contentType: 'image/png',
id: "id",
size: 100
})
@testdownload = new Download({
accountId: account.id,
state : 'unknown',
fileId : 'id',
percent : 0,
filename : '123.png',
filesize : 100,
targetPath : '/Users/testuser/.nylas/downloads/id/123.png'
})
FileDownloadStore._downloads = {}
FileDownloadStore._downloadDirectory = "/Users/testuser/.nylas/downloads"
spyOn(FileDownloadStore, '_generatePreview').andReturn(Promise.resolve())
describe "pathForFile", ->
it "should return path within the download directory with the file id and displayName", ->
f = new File(filename: '123.png', contentType: 'image/png', id: 'id')
spyOn(f, 'displayName').andCallThrough()
expect(FileDownloadStore.pathForFile(f)).toBe("/Users/testuser/.nylas/downloads/id/123.png")
expect(f.displayName).toHaveBeenCalled()
it "should return unique paths for identical filenames with different IDs", ->
f1 = new File(filename: '123.png', contentType: 'image/png', id: 'id1')
f2 = new File(filename: '123.png', contentType: 'image/png', id: 'id2')
expect(FileDownloadStore.pathForFile(f1)).toBe("/Users/testuser/.nylas/downloads/id1/123.png")
expect(FileDownloadStore.pathForFile(f2)).toBe("/Users/testuser/.nylas/downloads/id2/123.png")
it "should escape the displayName if it contains path separator characters", ->
f1 = new File(filename: "static#{path.sep}b#{path.sep}a.jpg", contentType: 'image/png', id: 'id1')
expect(FileDownloadStore.pathForFile(f1)).toBe("/Users/testuser/.nylas/downloads/id1/static-b-a.jpg")
f1 = new File(filename: "my:file ? Windows /hates/ me :->.jpg", contentType: 'image/png', id: 'id1')
expect(FileDownloadStore.pathForFile(f1)).toBe("/Users/testuser/.nylas/downloads/id1/my-file - Windows -hates- me ---.jpg")
describe "_checkForDownloadedFile", ->
it "should return true if the file exists at the path and is the right size", ->
f = new File(filename: '123.png', contentType: 'image/png', id: "id", size: 100)
spyOn(fs, 'statAsync').andCallFake (path) ->
Promise.resolve({size: 100})
waitsForPromise ->
FileDownloadStore._checkForDownloadedFile(f).then (downloaded) ->
expect(downloaded).toBe(true)
it "should return false if the file does not exist", ->
f = new File(filename: '123.png', contentType: 'image/png', id: "id", size: 100)
spyOn(fs, 'statAsync').andCallFake (path) ->
Promise.reject(new Error("File does not exist"))
waitsForPromise ->
FileDownloadStore._checkForDownloadedFile(f).then (downloaded) ->
expect(downloaded).toBe(false)
it "should return false if the file is too small", ->
f = new File(filename: '123.png', contentType: 'image/png', id: "id", size: 100)
spyOn(fs, 'statAsync').andCallFake (path) ->
Promise.resolve({size: 50})
waitsForPromise ->
FileDownloadStore._checkForDownloadedFile(f).then (downloaded) ->
expect(downloaded).toBe(false)
describe "_onNewMailReceived", ->
it "should fetch attachments if the setting is on-receive", ->
spyOn(FileDownloadStore, '_fetch')
spyOn(NylasEnv.config, 'get').andCallFake (key) ->
return 'on-receive' if key is 'core.attachments.downloadPolicy'
return null
FileDownloadStore._onNewMailReceived(message: [new Message(files: [new File()])])
expect(FileDownloadStore._fetch).toHaveBeenCalled()
it "should not fetch attachments otherwise", ->
spyOn(FileDownloadStore, '_fetch')
spyOn(NylasEnv.config, 'get').andCallFake (key) ->
return 'on-read' if key is 'core.attachments.downloadPolicy'
return null
FileDownloadStore._onNewMailReceived(message: [new Message(files: [new File()])])
expect(FileDownloadStore._fetch).not.toHaveBeenCalled()
describe "_runDownload", ->
beforeEach ->
spyOn(Download.prototype, 'run').andCallFake -> Promise.resolve(@)
spyOn(FileDownloadStore, '_prepareFolder').andCallFake -> Promise.resolve(true)
it "should make sure that the download file path exists", ->
waitsForPromise =>
FileDownloadStore._runDownload(@testfile).then ->
expect(FileDownloadStore._prepareFolder).toHaveBeenCalled()
it "should return the promise returned by download.run if the download already exists", ->
existing =
fileId: @testfile.id
run: jasmine.createSpy('existing.run').andCallFake ->
Promise.resolve(existing)
FileDownloadStore._downloads[@testfile.id] = existing
promise = FileDownloadStore._runDownload(@testfile)
expect(promise instanceof Promise).toBe(true)
waitsForPromise ->
promise.then ->
expect(existing.run).toHaveBeenCalled()
describe "when the downloaded file exists", ->
beforeEach ->
spyOn(FileDownloadStore, '_checkForDownloadedFile').andCallFake ->
Promise.resolve(true)
it "should resolve with a Download without calling download.run", ->
waitsForPromise =>
FileDownloadStore._runDownload(@testfile).then (download) ->
expect(Download.prototype.run).not.toHaveBeenCalled()
expect(download instanceof Download).toBe(true)
expect(download.data()).toEqual({
state : 'finished',
fileId : 'id',
percent : 0,
filename : '123.png',
filesize : 100,
targetPath : '/Users/testuser/.nylas/downloads/id/123.png'
})
describe "when the downloaded file does not exist", ->
beforeEach ->
spyOn(FileDownloadStore, '_checkForDownloadedFile').andCallFake ->
Promise.resolve(false)
it "should register the download with the right attributes", ->
FileDownloadStore._runDownload(@testfile)
advanceClock(0)
expect(FileDownloadStore.downloadDataForFile(@testfile.id)).toEqual({
state : 'unstarted',fileId : 'id',
percent : 0,
filename : '123.png',
filesize : 100,
targetPath : '/Users/testuser/.nylas/downloads/id/123.png'
})
it "should call download.run", ->
waitsForPromise =>
FileDownloadStore._runDownload(@testfile)
runs ->
expect(Download.prototype.run).toHaveBeenCalled()
it "should resolve with a Download", ->
waitsForPromise =>
FileDownloadStore._runDownload(@testfile).then (download) ->
expect(download instanceof Download).toBe(true)
expect(download.data()).toEqual({
state : 'unstarted',
fileId : 'id',
percent : 0,
filename : '123.png',
filesize : 100,
targetPath : '/Users/testuser/.nylas/downloads/id/123.png'
})
describe "_fetch", ->
it "should call through to startDownload", ->
spyOn(FileDownloadStore, '_runDownload').andCallFake ->
Promise.resolve(@testdownload)
FileDownloadStore._fetch(@testfile)
expect(FileDownloadStore._runDownload).toHaveBeenCalled()
it "should fail silently since it's called passively", ->
spyOn(FileDownloadStore, '_presentError')
spyOn(FileDownloadStore, '_runDownload').andCallFake =>
Promise.reject(@testdownload)
FileDownloadStore._fetch(@testfile)
expect(FileDownloadStore._presentError).not.toHaveBeenCalled()
describe "_fetchAndOpen", ->
it "should open the file once it's been downloaded", ->
@savePath = "/Users/imaginary/.nylas/Downloads/a.png"
download = {targetPath: @savePath}
downloadResolve = null
spyOn(FileDownloadStore, '_runDownload').andCallFake =>
new Promise (resolve, reject) ->
downloadResolve = resolve
FileDownloadStore._fetchAndOpen(@testfile)
expect(shell.openItem).not.toHaveBeenCalled()
downloadResolve(download)
advanceClock(100)
expect(shell.openItem).toHaveBeenCalledWith(@savePath)
it "should open an error if the download fails", ->
spyOn(FileDownloadStore, '_presentError')
spyOn(FileDownloadStore, '_runDownload').andCallFake =>
Promise.reject(@testdownload)
FileDownloadStore._fetchAndOpen(@testfile)
advanceClock(1)
expect(FileDownloadStore._presentError).toHaveBeenCalled()
describe "_fetchAndSave", ->
beforeEach ->
@userSelectedPath = "/Users/imaginary/.nylas/Downloads/b.png"
spyOn(NylasEnv, 'showSaveDialog').andCallFake (options, callback) => callback(@userSelectedPath)
it "should open a save dialog and prompt the user to choose a download path", ->
spyOn(FileDownloadStore, '_runDownload').andCallFake =>
new Promise (resolve, reject) -> # never resolve
FileDownloadStore._fetchAndSave(@testfile)
expect(NylasEnv.showSaveDialog).toHaveBeenCalled()
expect(FileDownloadStore._runDownload).toHaveBeenCalledWith(@testfile)
it "should open an error if the download fails", ->
spyOn(FileDownloadStore, '_presentError')
spyOn(FileDownloadStore, '_runDownload').andCallFake =>
Promise.reject(@testdownload)
FileDownloadStore._fetchAndSave(@testfile)
advanceClock(1)
expect(FileDownloadStore._presentError).toHaveBeenCalled()
describe "when the user confirms a path", ->
beforeEach ->
@download = {targetPath: 'bla'}
@onEndEventCallback = null
streamStub =
pipe: ->
on: (eventName, eventCallback) =>
@onEndEventCallback = eventCallback
spyOn(FileDownloadStore, '_runDownload').andCallFake =>
Promise.resolve(@download)
spyOn(fs, 'createReadStream').andReturn(streamStub)
spyOn(fs, 'createWriteStream')
it "should copy the file to the download path after it's been downloaded and open it after the stream has ended", ->
FileDownloadStore._fetchAndSave(@testfile)
advanceClock(1)
expect(fs.createReadStream).toHaveBeenCalledWith(@download.targetPath)
expect(shell.showItemInFolder).not.toHaveBeenCalled()
@onEndEventCallback()
advanceClock(1)
it "should show file in folder if download path differs from previous download path", ->
spyOn(FileDownloadStore, '_saveDownload').andCallFake =>
Promise.resolve(@testfile)
NylasEnv.savedState.lastDownloadDirectory = null
@userSelectedPath = "/Users/imaginary/.nylas/Another Random Folder/file.jpg"
FileDownloadStore._fetchAndSave(@testfile)
advanceClock(1)
expect(shell.showItemInFolder).toHaveBeenCalledWith(@userSelectedPath)
it "should not show the file in the folder if the download path is the previous download path", ->
spyOn(FileDownloadStore, '_saveDownload').andCallFake =>
Promise.resolve(@testfile)
@userSelectedPath = "/Users/imaginary/.nylas/Another Random Folder/123.png"
NylasEnv.savedState.lastDownloadDirectory = "/Users/imaginary/.nylas/Another Random Folder"
FileDownloadStore._fetchAndSave(@testfile)
advanceClock(1)
expect(shell.showItemInFolder).not.toHaveBeenCalled()
it "should update the NylasEnv.savedState.lastDownloadDirectory if is has changed", ->
spyOn(FileDownloadStore, '_saveDownload').andCallFake =>
Promise.resolve(@testfile)
NylasEnv.savedState.lastDownloadDirectory = null
@userSelectedPath = "/Users/imaginary/.nylas/Another Random Folder/file.jpg"
FileDownloadStore._fetchAndSave(@testfile)
advanceClock(1)
expect(NylasEnv.savedState.lastDownloadDirectory).toEqual('/Users/imaginary/.nylas/Another Random Folder')
describe "file extensions", ->
it "should allow the user to save the file with a different extension", ->
@userSelectedPath = "/Users/imaginary/.nylas/Downloads/b-changed.tiff"
FileDownloadStore._fetchAndSave(@testfile)
advanceClock(1)
expect(fs.createWriteStream).toHaveBeenCalledWith(@userSelectedPath)
it "should restore the extension if the user removed it entirely, because it's usually an accident", ->
@userSelectedPath = "/Users/imaginary/.nylas/Downloads/b-changed"
FileDownloadStore._fetchAndSave(@testfile)
advanceClock(1)
expect(fs.createWriteStream).toHaveBeenCalledWith("#{@userSelectedPath}.png")
describe "_abortFetchFile", ->
beforeEach ->
@download =
ensureClosed: jasmine.createSpy('abort')
fileId: @testfile.id
FileDownloadStore._downloads[@testfile.id] = @download
it "should cancel the download for the provided file", ->
spyOn(fs, 'exists').andCallFake (path, callback) -> callback(true)
spyOn(fs, 'unlink')
FileDownloadStore._abortFetchFile(@testfile)
expect(fs.unlink).toHaveBeenCalled()
expect(@download.ensureClosed).toHaveBeenCalled()
it "should not try to delete the file if doesn't exist", ->
spyOn(fs, 'exists').andCallFake (path, callback) -> callback(false)
spyOn(fs, 'unlink')
FileDownloadStore._abortFetchFile(@testfile)
expect(fs.unlink).not.toHaveBeenCalled()
expect(@download.ensureClosed).toHaveBeenCalled()
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