test_invalid_file.js

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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this file,

 * You can obtain one at http://mozilla.org/MPL/2.0/. */

/**

 * Test with sessionCheckpoints.json containing invalid data

*/

add_task(async function test_invalid_file() {

  // Write bogus data to checkpoint file

  let data = "1234";

  await IOUtils.writeUTF8(sessionCheckpointsPath, data, {

    tmpPath: sessionCheckpointsPath + ".tmp",

});

  // An invalid file will cause |init| to return null

  let status = await CrashMonitor.init();

  Assert.ok(!!(status === null));

  // and |previousCheckpoints| will be null

  let checkpoints = await CrashMonitor.previousCheckpoints;

  Assert.ok(!!(checkpoints === null));

});