test_blob_channelname.js

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/* Any copyright is dedicated to the Public Domain.

   http://creativecommons.org/publicdomain/zero/1.0/ */

add_task(async function channelname() {

  var file = new File(

    [new Blob(["test"], { type: "text/plain" })],

    "test-name"

);

  var url = URL.createObjectURL(file);

  var channel = NetUtil.newChannel({

    uri: url,

    loadUsingSystemPrincipal: true,

});

  let inputStream = channel.open();

  ok(inputStream, "Should be able to open channel");

ok(

    inputStream.QueryInterface(Ci.nsIAsyncInputStream),

    "Stream should support async operations"

);

  await new Promise(resolve => {

    inputStream.asyncWait(

      () => {

        let available = inputStream.available();

        ok(available, "There should be data to read");

        Assert.equal(

          channel.contentDispositionFilename,

          "test-name",

          "filename matches"

);

        resolve();

},

0,

0,

      Services.tm.mainThread

);

});

  inputStream.close();

  channel.cancel(Cr.NS_ERROR_FAILURE);

});