Bug 1507893 - Fetch() should consume DOM Files on the target thread only - test, r=twisniewski

2018-11-20 18:08:34 +01:00 · 2018-11-20 18:08:34 +01:00 · 7194843a04
--- a/dom/file/tests/mochitest.ini
+++ b/dom/file/tests/mochitest.ini
@ -43,3 +43,5 @@ skip-if = (toolkit == 'android') # Android: Bug 775227
 skip-if = (toolkit == 'android') # Android: Bug 775227
 [test_mozfiledataurl.html]
 skip-if = toolkit == 'android' #TIMED_OUT
 [test_bug1507893.html]
 support-files = worker_bug1507893.js
--- a/dom/file/tests/test_bug1507893.html
+++ b/dom/file/tests/test_bug1507893.html
@ -0,0 +1,63 @@
 <!DOCTYPE HTML>
 <html>
 <head>
  <meta charset="utf-8">
  <title>Blob URLs fetched in workers</title>
  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
 </head>
 <body>
  <script>
 SimpleTest.waitForExplicitFinish();
 // Let's be positive.
 Promise.resolve()
 // Create a file.
 .then(_ => {
  return new Promise(resolve => {
    let openerURL = SimpleTest.getTestFileURL("fileapi_chromeScript.js");
    let opener = SpecialPowers.loadChromeScript(openerURL);
    opener.addMessageListener("files.opened", files => {
      resolve(files[0]);
    });
    opener.sendAsyncMessage("files.open", [ "I am the blob content" ]);
  })
 })
 // Just a couple of checks
 .then(file => {
  ok(file instanceof File, "We want a file");
  ok(file.size > 0, "We have content");
  return file;
 })
 // Let's create a blobURL
 .then(file => URL.createObjectURL(file))
 // Let's send it to a worker.
 .then(url => {
  return new Promise(resolve => {
    let w = new Worker('worker_bug1507893.js');
    w.onmessage = e => {
     resolve(e.data);
    };
    w.postMessage(url);
  });
 })
 // Let's check the worker's output
 .then(blob => {
  ok(blob instanceof File, "The worker sends us a blob");
  ok(blob.size > 0, "We have data");
 })
 // All done.
 .then(SimpleTest.finish);
  </script>
 </body>
 </html>
--- a/dom/file/tests/worker_bug1507893.js
+++ b/dom/file/tests/worker_bug1507893.js
@ -0,0 +1,5 @@
 onmessage = e => {
  fetch(e.data)
  .then(r => r.blob())
  .then(blob => postMessage(blob));
 }