1 files changed, 56 insertions, 0 deletions
diff --git a/intl/uconv/tests/unit/test_bug715319.dbcs.js b/intl/uconv/tests/unit/test_bug715319.dbcs.js
new file mode 100644
index 0000000000..3ba405a925
--- /dev/null
+++ b/intl/uconv/tests/unit/test_bug715319.dbcs.js
@@ -0,0 +1,56 @@
+// 2-byte charsets:
+const charsets = ["Big5", "EUC-KR"];
+const ScriptableUnicodeConverter = Components.Constructor(
+  "@mozilla.org/intl/scriptableunicodeconverter",
+  "nsIScriptableUnicodeConverter"
+);
+var gConverter;
+
+function error(inString, outString, msg) {
+  var dispIn = "";
+  var dispOut = "";
+  var i;
+  for (i = 0; i < inString.length; ++i) {
+    dispIn += " x" + inString.charCodeAt(i).toString(16);
+  }
+  if (!outString.length) {
+    dispOut = "<empty>";
+  } else {
+    for (i = 0; i < outString.length; ++i) {
+      dispOut += " x" + outString.charCodeAt(i).toString(16);
+    }
+  }
+  dump('"' + dispIn + '" ==> "' + dispOut + '"\n');
+  do_throw("security risk: " + msg);
+}
+
+function IsASCII(charCode) {
+  return charCode <= 0x7e;
+}
+
+function test(inString) {
+  var outString = gConverter.ConvertToUnicode(inString) + gConverter.Finish();
+
+  var outLen = outString.length;
+
+  if (
+    IsASCII(inString.charCodeAt(1)) &&
+    (outLen < 4 || outString.charCodeAt(outLen - 4) == 0xfffd)
+  ) {
+    error(inString, outString, "ASCII input eaten in " + gConverter.charset);
+  }
+}
+
+function run_test() {
+  gConverter = new ScriptableUnicodeConverter();
+  for (var i = 0; i < charsets.length; ++i) {
+    gConverter.charset = charsets[i];
+
+    var byte1, byte2;
+    for (byte1 = 1; byte1 < 0x100; ++byte1) {
+      for (byte2 = 1; byte2 < 0x100; ++byte2) {
+        test(String.fromCharCode(byte1, byte2) + "foo");
+      }
+    }
+  }
+}