Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
- Manifest: modules/libpref/test/unit/xpcshell.toml
/* Any copyright is dedicated to the Public Domain.
"use strict";
// // This undoes some of the configuration from
// Services.dirsvc
// .QueryInterface(Ci.nsIDirectoryService)
// .unregisterProvider(provider);
class PrefObserver {
constructor() {
this.events = [];
}
onStringPref(...args) {
// // What happens with an exception here?
// throw new Error(`foo ${args[1]}`);
this.events.push(["string", ...args]);
}
onIntPref(...args) {
this.events.push(["int", ...args]);
}
onBoolPref(...args) {
this.events.push(["bool", ...args]);
}
onError(message) {
this.events.push(["error", message]);
}
}
const TESTS = {
"data/testPrefSticky.js": [
["bool", "Default", "testPref.unsticky.bool", true, false, false],
["bool", "Default", "testPref.sticky.bool", false, true, false],
],
"data/testPrefStickyUser.js": [
["bool", "User", "testPref.sticky.bool", false, false, false],
],
"data/testPrefLocked.js": [
["int", "Default", "testPref.unlocked.int", 333, false, false],
["int", "Default", "testPref.locked.int", 444, false, true],
],
// data/testPrefLockedUser is ASCII.
"data/testPrefLockedUser.js": [
["int", "User", "testPref.locked.int", 555, false, false],
],
// data/testPref is ISO-8859.
"data/testPref.js": [
["bool", "User", "testPref.bool1", true, false, false],
["bool", "User", "testPref.bool2", false, false, false],
["int", "User", "testPref.int1", 23, false, false],
["int", "User", "testPref.int2", -1236, false, false],
["string", "User", "testPref.char1", "_testPref", false, false],
["string", "User", "testPref.char2", "älskar", false, false],
],
// data/testParsePrefs is data/testPref.js as UTF-8.
"data/testPrefUTF8.js": [
["bool", "User", "testPref.bool1", true, false, false],
["bool", "User", "testPref.bool2", false, false, false],
["int", "User", "testPref.int1", 23, false, false],
["int", "User", "testPref.int2", -1236, false, false],
["string", "User", "testPref.char1", "_testPref", false, false],
// Observe that this is the ISO-8859/Latin-1 encoding of the UTF-8 bytes.
// (Note that this source file is encoded as UTF-8.) This appears to just
// be how libpref handles this case. This test serves as documentation of
// this infelicity.
["string", "User", "testPref.char2", "älskar", false, false],
],
};
add_task(async function test_success() {
for (let [path, expected] of Object.entries(TESTS)) {
let prefObserver = new PrefObserver();
let prefsFile = do_get_file(path);
let data = await IOUtils.read(prefsFile.path);
Services.prefs.parsePrefsFromBuffer(data, prefObserver, path);
Assert.deepEqual(
prefObserver.events,
expected,
`Observations from ${path} are as expected`
);
}
});
add_task(async function test_exceptions() {
const { AddonTestUtils } = ChromeUtils.importESModule(
);
let s = `user_pref("testPref.bool1", true);
user_pref("testPref.bool2", false);
user_pref("testPref.int1", 23);
user_pref("testPref.int2", -1236);
`;
let onErrorCount = 0;
let addPrefCount = 0;
let marker = "2fc599a1-433b-4de7-bd63-3e69c3bbad5b";
let addPref = (...args) => {
addPrefCount += 1;
throw new Error(`${marker}${JSON.stringify(args)}${marker}`);
};
let { messages } = await AddonTestUtils.promiseConsoleOutput(() => {
Services.prefs.parsePrefsFromBuffer(new TextEncoder().encode(s), {
onStringPref: addPref,
onIntPref: addPref,
onBoolPref: addPref,
onError(message) {
onErrorCount += 1;
console.error(message);
},
});
});
Assert.equal(addPrefCount, 4);
Assert.equal(onErrorCount, 0);
// This is fragile but mercifully simple.
Assert.deepEqual(
messages.map(m => JSON.parse(m.message.split(marker)[1])),
[
["User", "testPref.bool1", true, false, false],
["User", "testPref.bool2", false, false, false],
["User", "testPref.int1", 23, false, false],
["User", "testPref.int2", -1236, false, false],
]
);
});