1 files changed, 107 insertions, 0 deletions
diff --git a/modules/libpref/test/unit/test_parser.js b/modules/libpref/test/unit/test_parser.js
new file mode 100644
index 0000000000..27a5c86905
--- /dev/null
+++ b/modules/libpref/test/unit/test_parser.js
@@ -0,0 +1,107 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/  */
+
+function run_test() {
+  const ps = Services.prefs;
+
+  ps.resetPrefs();
+  ps.readDefaultPrefsFromFile(do_get_file("data/testParser.js"));
+
+  Assert.equal(ps.getBoolPref("comment1"), true);
+  Assert.equal(ps.getBoolPref("comment2"), true);
+  Assert.equal(ps.getBoolPref("spaced-out"), true);
+
+  Assert.equal(ps.getBoolPref("pref"), true);
+  Assert.equal(ps.getBoolPref("sticky_pref"), true);
+  Assert.equal(ps.getBoolPref("user_pref"), true);
+  Assert.equal(ps.getBoolPref("sticky_pref2"), true);
+  Assert.equal(ps.getBoolPref("locked_pref"), true);
+  Assert.equal(ps.getBoolPref("locked_sticky_pref"), true);
+  Assert.equal(ps.prefIsLocked("locked_pref"), true);
+  Assert.equal(ps.prefIsLocked("locked_sticky_pref"), true);
+
+  Assert.equal(ps.getBoolPref("bool.true"), true);
+  Assert.equal(ps.getBoolPref("bool.false"), false);
+
+  Assert.equal(ps.getIntPref("int.0"), 0);
+  Assert.equal(ps.getIntPref("int.1"), 1);
+  Assert.equal(ps.getIntPref("int.123"), 123);
+  Assert.equal(ps.getIntPref("int.+234"), 234);
+  Assert.equal(ps.getIntPref("int.+  345"), 345);
+  Assert.equal(ps.getIntPref("int.-0"), -0);
+  Assert.equal(ps.getIntPref("int.-1"), -1);
+  Assert.equal(ps.getIntPref("int.- /* hmm */\t456"), -456);
+  Assert.equal(ps.getIntPref("int.-\n567"), -567);
+  Assert.equal(ps.getIntPref("int.INT_MAX-1"), 2147483646);
+  Assert.equal(ps.getIntPref("int.INT_MAX"), 2147483647);
+  Assert.equal(ps.getIntPref("int.INT_MIN+2"), -2147483646);
+  Assert.equal(ps.getIntPref("int.INT_MIN+1"), -2147483647);
+  Assert.equal(ps.getIntPref("int.INT_MIN"), -2147483648);
+
+  Assert.equal(ps.getCharPref("string.empty"), "");
+  Assert.equal(ps.getCharPref("string.abc"), "abc");
+  Assert.equal(
+    ps.getCharPref("string.long"),
+    "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+  );
+  Assert.equal(ps.getCharPref("string.single-quotes"), '"abc"');
+  Assert.equal(ps.getCharPref("string.double-quotes"), "'abc'");
+  Assert.equal(
+    ps.getCharPref("string.weird-chars"),
+    "\x0d \x09 \x0b \x0c \x06 \x16"
+  );
+  Assert.equal(ps.getCharPref("string.escapes"), "\" ' \\ \n \r");
+
+  // This one is ASCII, so we can use getCharPref() and getStringPref
+  // interchangeably.
+  Assert.equal(
+    ps.getCharPref("string.x-escapes1"),
+    "Mozilla0\x4d\x6F\x7a\x69\x6c\x6C\x610"
+  );
+  Assert.equal(ps.getStringPref("string.x-escapes1"), "Mozilla0Mozilla0");
+
+  // This one has chars with value > 127, so it's not valid UTF8, so we can't
+  // use getStringPref on it.
+  Assert.equal(
+    ps.getCharPref("string.x-escapes2"),
+    "AA A_umlaut\xc4 y_umlaut\xff"
+  );
+
+  // The following strings use \uNNNN escapes, which are UTF16 code points.
+  // libpref stores them internally as UTF8 byte sequences. In each case we get
+  // the string in two ways:
+  // - getStringPref() interprets it as UTF8, which is then converted to UTF16
+  //   in JS. I.e. code points that are multiple bytes in UTF8 become a single
+  //   16-bit char in JS (except for the non-BMP chars, which become a 16-bit
+  //   surrogate pair).
+  // - getCharPref() interprets it as Latin1, which is then converted to UTF16
+  //   in JS. I.e. code points that are multiple bytes in UTF8 become multiple
+  //   16-bit chars in JS.
+
+  Assert.equal(
+    ps.getStringPref("string.u-escapes1"),
+    "A\u0041 A_umlaut\u00c4 y_umlaut\u00ff0"
+  );
+  Assert.equal(
+    ps.getCharPref("string.u-escapes1"),
+    "A\x41 A_umlaut\xc3\x84 y_umlaut\xc3\xbf0"
+  );
+
+  Assert.equal(
+    ps.getStringPref("string.u-escapes2"),
+    "S_acute\u015a y_grave\u1Ef3"
+  );
+  Assert.equal(
+    ps.getCharPref("string.u-escapes2"),
+    "S_acute\xc5\x9a y_grave\xe1\xbb\xb3"
+  );
+
+  Assert.equal(
+    ps.getStringPref("string.u-surrogates"),
+    "cyclone\uD83C\uDF00 grinning_face\uD83D\uDE00"
+  );
+  Assert.equal(
+    ps.getCharPref("string.u-surrogates"),
+    "cyclone\xF0\x9F\x8C\x80 grinning_face\xF0\x9F\x98\x80"
+  );
+}