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Test Info:
- Manifest: js/xpconnect/tests/unit/xpcshell.toml
/* 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
// nsIPrefBranch.{getCharPref,setCharPref} uses Latin-1 string, and
// nsIPrefBranch.{getStringPref,setStringPref} uses UTF-8 string.
//
// Mixing them results in unexpected string, but it should perform lossy
// conversion, and not throw.
const gPrefs = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefBranch);
const tests = [
// Latin-1 to Latin-1 and UTF-8 to UTF-8 should preserve the string.
// Latin-1 to UTF-8 should replace invalid character with REPLACEMENT
// CHARACTER.
// UTF-8 to Latin1 should return the raw UTF-8 code units.
// UTF-8 code units sequence without the last unit.
//
// input, Latin-1 to UTF-8, UTF-8 to Latin-1
["\xC2", "\uFFFD", "\xC3\x82"],
["\xDF", "\uFFFD", "\xC3\x9F"],
["\xE0\xA0", "\uFFFD", "\xC3\xA0\xC2\xA0"],
["\xF0\x90\x80", "\uFFFD", "\xC3\xB0\xC2\x90\xC2\x80"],
// UTF-8 code units sequence with malformed last unit.
//
// input, Latin-1 to UTF-8, UTF-8 to Latin-1
["\xC2 ", "\uFFFD ", "\xC3\x82 "],
["\xDF ", "\uFFFD ", "\xC3\x9F "],
["\xE0\xA0 ", "\uFFFD ", "\xC3\xA0\xC2\xA0 "],
["\xF0\x90\x80 ", "\uFFFD ", "\xC3\xB0\xC2\x90\xC2\x80 "],
// UTF-8 code units without the first unit.
//
// input, Latin-1 to UTF-8, UTF-8 to Latin-1
["\x80", "\uFFFD", "\xC2\x80"],
["\xBF", "\uFFFD", "\xC2\xBF"],
["\xA0\x80", "\uFFFD\uFFFD", "\xC2\xA0\xC2\x80"],
["\x8F\x80\x80", "\uFFFD\uFFFD\uFFFD", "\xC2\x8F\xC2\x80\xC2\x80"],
];
add_task(function testLatin1ToLatin1() {
for (const [input, ] of tests) {
gPrefs.setCharPref("test.malformed_utf8_data", input);
const result = gPrefs.getCharPref("test.malformed_utf8_data");
Assert.equal(result, input);
}
});
add_task(function testLatin1ToUTF8() {
for (const [input, expected] of tests) {
gPrefs.setCharPref("test.malformed_utf8_data", input);
const result = gPrefs.getStringPref("test.malformed_utf8_data");
Assert.equal(result, expected);
}
});
add_task(function testUTF8ToLatin1() {
for (const [input, , expected] of tests) {
gPrefs.setStringPref("test.malformed_utf8_data", input);
const result = gPrefs.getCharPref("test.malformed_utf8_data");
Assert.equal(result, expected);
}
});
add_task(function testUTF8ToUTF8() {
for (const [input, ] of tests) {
gPrefs.setStringPref("test.malformed_utf8_data", input);
const result = gPrefs.getStringPref("test.malformed_utf8_data");
Assert.equal(result, input);
}
});