overleaf/services/clsi/test/acceptance/coffee/ExampleDocumentTests.coffee
2014-04-02 16:58:07 -04:00

83 lines
3 KiB
CoffeeScript

Client = require "./helpers/Client"
request = require "request"
require("chai").should()
fs = require "fs"
ChildProcess = require "child_process"
fixturePath = (path) -> __dirname + "/../fixtures/" + path
try
fs.mkdirSync(fixturePath("tmp"))
catch e
convertToPng = (pdfPath, pngPath, callback = (error) ->) ->
convert = ChildProcess.exec "convert #{fixturePath(pdfPath)} #{fixturePath(pngPath)}"
convert.on "exit", () ->
callback()
compare = (originalPath, generatedPath, callback = (error, same) ->) ->
proc = ChildProcess.exec "compare -metric mae #{fixturePath(originalPath)} #{fixturePath(generatedPath)} #{fixturePath("tmp/diff.png")}"
stderr = ""
proc.stderr.on "data", (chunk) -> stderr += chunk
proc.on "exit", () ->
if stderr.trim() == "0 (0)"
callback null, true
else
console.log stderr
callback null, false
compareMultiplePages = (project_id, callback = (error) ->) ->
compareNext = (page_no, callback) ->
path = "tmp/#{project_id}-source-#{page_no}.png"
fs.stat fixturePath(path), (error, stat) ->
if error?
callback()
else
compare "tmp/#{project_id}-source-#{page_no}.png", "tmp/#{project_id}-generated-#{page_no}.png", (error, same) =>
throw error if error?
same.should.equal true
compareNext page_no + 1, callback
compareNext 0, callback
downloadAndComparePdf = (project_id, example_dir, url, callback = (error) ->) ->
writeStream = fs.createWriteStream(fixturePath("tmp/#{project_id}.pdf"))
request.get(url).pipe(writeStream)
writeStream.on "close", () =>
convertToPng "tmp/#{project_id}.pdf", "tmp/#{project_id}-generated.png", (error) =>
throw error if error?
convertToPng "examples/#{example_dir}/output.pdf", "tmp/#{project_id}-source.png", (error) =>
throw error if error?
fs.stat fixturePath("tmp/#{project_id}-source-0.png"), (error, stat) =>
if error?
compare "tmp/#{project_id}-source.png", "tmp/#{project_id}-generated.png", (error, same) =>
throw error if error?
same.should.equal true
callback()
else
compareMultiplePages project_id, (error) ->
throw error if error?
callback()
Client.runServer(4242, fixturePath("examples"))
describe "Example Documents", ->
before (done) ->
ChildProcess.exec("rm test/acceptance/fixtures/tmp/*").on "exit", () -> done()
for example_dir in fs.readdirSync fixturePath("examples")
do (example_dir) ->
describe example_dir, ->
before ->
@project_id = Client.randomId()
it "should generate the correct pdf", (done) ->
Client.compileDirectory @project_id, fixturePath("examples"), example_dir, 4242, (error, res, body) =>
pdf = Client.getOutputFile body, "pdf"
downloadAndComparePdf(@project_id, example_dir, pdf.url, done)
it "should generate the correct pdf on the second run as well", (done) ->
Client.compileDirectory @project_id, fixturePath("examples"), example_dir, 4242, (error, res, body) =>
pdf = Client.getOutputFile body, "pdf"
downloadAndComparePdf(@project_id, example_dir, pdf.url, done)