test_logFilePrefReset.js

Enable keyboard shortcuts

/* Any copyright is dedicated to the Public Domain.

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

const kLogFilePref = "logging.config.LOG_FILE";

const kModule = "logFilePrefReset";

add_task(async function test_clearing_log_file_pref_stops_logging_to_files() {

  const cwdLog = Services.dirsvc.get("CurWorkD", Ci.nsIFile);

  cwdLog.append(".moz_log");

  Assert.ok(!cwdLog.exists(), "No .moz_log in the working directory yet");

  const logger = console.createInstance({ prefix: kModule });

  Services.prefs.setStringPref(`logging.${kModule}`, "debug");

  // Flush each line, so the log file size can be checked right after logging.

  Services.prefs.setBoolPref("logging.config.sync", true);

  const profilePath = do_get_profile().path;

  Services.prefs.setStringPref(

    kLogFilePref,

    PathUtils.join(profilePath, "log")

);

  const logPath = PathUtils.join(

    profilePath,

    `log-main.${Services.appinfo.processID}.moz_log`

);

  Assert.ok(await IOUtils.exists(logPath), "The log file was created");

  logger.log("Logged to the file");

  Assert.greater(

    (await IOUtils.stat(logPath)).size,

0,

    "Something was logged to the file"

);

  Services.prefs.clearUserPref(kLogFilePref);

  Services.tm.spinEventLoopUntilEmpty();

  const { size } = await IOUtils.stat(logPath);

  logger.log("Logged to stderr");

  Assert.equal(

    (await IOUtils.stat(logPath)).size,

    size,

    "Nothing more was logged to the file after clearing the pref"

);

  Assert.ok(

    !cwdLog.exists(),

    "Clearing the log file pref doesn't create .moz_log in the working directory"

);

});