46 lines
1.4 KiB
JavaScript
46 lines
1.4 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/ */
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"use strict";
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/**
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* Tests that we can create a backup of the preferences state to
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* a file asynchronously.
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*/
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add_task(async function test_backupPrefFile() {
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// Create a backup of the preferences state to a file.
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Services.prefs.setBoolPref("test.backup", true);
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let backupFilePath = PathUtils.join(PathUtils.tempDir, "prefs-backup.js");
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let backupFile = await IOUtils.getFile(backupFilePath);
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await Services.prefs.backupPrefFile(backupFile);
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// Verify that the backup file was created and contains the expected content.
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let backupContent = await IOUtils.read(backupFilePath, { encoding: "utf-8" });
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let sawTestValue = false;
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// Now parse the backup file and verify that it contains the expected
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// preference value. We'll not worry about any of the other preferences.
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let observer = {
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onStringPref() {},
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onIntPref() {},
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onBoolPref(kind, name, value, _isSticky, _isLocked) {
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if (name == "test.backup" && value) {
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sawTestValue = true;
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}
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},
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onError(message) {
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Assert.ok(false, "Error while parsing backup file: " + message);
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},
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};
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Services.prefs.parsePrefsFromBuffer(backupContent, observer);
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Assert.ok(
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sawTestValue,
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"The backup file contains the expected preference value."
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);
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// Clean up the backup file.
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await IOUtils.remove(backupFilePath);
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});
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