Mailspring/spec-nylas/stores/file-download-store-spec.coffee
Ben Gotow f8c5f7b967 refactor(db): change ID system to have clientIDs and serverIDs
Summary: Major ID refactor

Test Plan: edgehill --test

Reviewers: bengotow, dillon

Differential Revision: https://phab.nylas.com/D1946
2015-08-28 11:24:29 -07:00

237 lines
10 KiB
CoffeeScript

fs = require 'fs'
shell = require 'shell'
NylasAPI = require '../../src/flux/nylas-api'
File = require '../../src/flux/models/file'
FileDownloadStore = require '../../src/flux/stores/file-download-store'
Download = FileDownloadStore.Download
describe "FileDownloadStore.Download", ->
beforeEach ->
spyOn(fs, 'createWriteStream')
spyOn(NylasAPI, 'makeRequest')
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 ->
@download = new Download(fileId: '123', targetPath: 'test.png', filename: 'test.png')
@download.run()
expect(NylasAPI.makeRequest).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(NylasAPI.makeRequest.mostRecentCall.args[0].json).toBe(false)
expect(NylasAPI.makeRequest.mostRecentCall.args[0].encoding).toBe(null)
it "should create a request for /files/123/download", ->
expect(NylasAPI.makeRequest.mostRecentCall.args[0].path).toBe("/files/123/download")
describe "FileDownloadStore", ->
beforeEach ->
spyOn(shell, 'showItemInFolder')
spyOn(shell, 'openItem')
@testfile = new File(filename: '123.png', contentType: 'image/png', id: "id", size: 100)
FileDownloadStore._downloads = {}
FileDownloadStore._downloadDirectory = "/Users/testuser/.nylas/downloads"
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")
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, 'stat').andCallFake (path, callback) ->
callback(null, {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, 'stat').andCallFake (path, callback) ->
callback(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, 'stat').andCallFake (path, callback) ->
callback(null, {size: 50})
waitsForPromise ->
FileDownloadStore._checkForDownloadedFile(f).then (downloaded) ->
expect(downloaded).toBe(false)
describe "_startDownload", ->
beforeEach ->
spyOn(FileDownloadStore.Download.prototype, 'run').andCallFake -> Promise.resolve()
spyOn(FileDownloadStore, '_prepareFolder').andCallFake -> Promise.resolve(true)
spyOn(FileDownloadStore, '_cleanupDownload')
it "should make sure that the download file path exists", ->
FileDownloadStore._startDownload(@testfile)
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(true)
FileDownloadStore._downloads[@testfile.id] = existing
promise = FileDownloadStore._startDownload(@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._startDownload(@testfile).then (download) ->
expect(FileDownloadStore.Download.prototype.run).not.toHaveBeenCalled()
expect(download instanceof FileDownloadStore.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._startDownload(@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._startDownload(@testfile)
runs ->
expect(FileDownloadStore.Download.prototype.run).toHaveBeenCalled()
it "should resolve with a Download", ->
waitsForPromise =>
FileDownloadStore._startDownload(@testfile).then (download) ->
expect(download instanceof FileDownloadStore.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, '_startDownload')
FileDownloadStore._fetch(@testfile)
expect(FileDownloadStore._startDownload).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, '_startDownload').andCallFake =>
new Promise (resolve, reject) ->
downloadResolve = resolve
FileDownloadStore._fetchAndOpen(@testfile)
expect(shell.openItem).not.toHaveBeenCalled()
downloadResolve(download)
advanceClock(100)
expect(shell.openItem).toHaveBeenCalledWith(@savePath)
describe "_fetchAndSave", ->
beforeEach ->
@savePath = "/Users/imaginary/.nylas/Downloads/b.png"
spyOn(atom, 'showSaveDialog').andCallFake (options, callback) => callback(@savePath)
it "should open a save dialog and prompt the user to choose a download path", ->
spyOn(FileDownloadStore, '_startDownload').andCallFake =>
new Promise (resolve, reject) -> # never resolve
FileDownloadStore._fetchAndSave(@testfile)
expect(atom.showSaveDialog).toHaveBeenCalled()
expect(FileDownloadStore._startDownload).toHaveBeenCalledWith(@testfile)
it "should copy the file to the download path after it's been downloaded and open it after the stream has ended", ->
download = {targetPath: @savePath}
onEndEventCallback = null
streamStub =
pipe: ->
on: (eventName, eventCallback) =>
onEndEventCallback = eventCallback
spyOn(FileDownloadStore, '_startDownload').andCallFake =>
Promise.resolve(download)
spyOn(fs, 'createReadStream').andReturn(streamStub)
spyOn(fs, 'createWriteStream')
FileDownloadStore._fetchAndSave(@testfile)
advanceClock(1)
expect(fs.createReadStream).toHaveBeenCalledWith(download.targetPath)
expect(shell.showItemInFolder).not.toHaveBeenCalled()
onEndEventCallback()
advanceClock(1)
expect(shell.showItemInFolder).toHaveBeenCalledWith(download.targetPath)
describe "_abortFetchFile", ->
beforeEach ->
@download =
abort: 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.abort).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.abort).toHaveBeenCalled()