1 files changed, 87 insertions, 0 deletions
diff --git a/intl/uconv/tests/unit/test_bug715319.gb2312.js b/intl/uconv/tests/unit/test_bug715319.gb2312.js
new file mode 100644
index 0000000000..f780ab81d1
--- /dev/null
+++ b/intl/uconv/tests/unit/test_bug715319.gb2312.js
@@ -0,0 +1,87 @@
+const charset = "GB2312";
+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;
+  for (var pos = 1; pos < 3; ++pos) {
+    let outPos = outLen - (9 - pos);
+    if (outPos < 0) {
+      outPos = 0;
+    }
+    let c0 = inString.charCodeAt(0);
+    let c1 = inString.charCodeAt(1);
+    let c2 = inString.charCodeAt(2);
+    let c3 = inString.charCodeAt(3);
+    if (
+      IsASCII(inString.charCodeAt(pos)) &&
+      !(
+        outString.charCodeAt(outPos) == inString.charCodeAt(pos) ||
+        outString.charCodeAt(outPos) != 0xfffd ||
+        // legal 4 byte range
+        (0x81 <= c0 &&
+          c0 <= 0xfe &&
+          0x30 <= c1 &&
+          c1 <= 0x39 &&
+          0x81 <= c2 &&
+          c2 <= 0xfe &&
+          0x30 <= c3 &&
+          c3 <= 0x39)
+      )
+    ) {
+      dump("pos = " + pos + "; outPos = " + outPos + "\n");
+      error(inString, outString, "ASCII input eaten");
+    }
+  }
+}
+
+function run_test() {
+  gConverter = new ScriptableUnicodeConverter();
+  gConverter.charset = charset;
+
+  var byte1, byte2, byte3, byte4;
+
+  // 2-byte
+  for (byte1 = 1; byte1 < 0x100; ++byte1) {
+    for (byte2 = 1; byte2 < 0x100; ++byte2) {
+      test(String.fromCharCode(byte1, byte2) + "    foo");
+    }
+  }
+  // 4-byte (limited)
+  for (byte1 = 0x80; byte1 < 0x90; ++byte1) {
+    for (byte2 = 0x20; byte2 < 0x40; ++byte2) {
+      for (byte3 = 0x80; byte3 < 0x90; ++byte3) {
+        for (byte4 = 0x20; byte4 < 0x40; ++byte4) {
+          test(String.fromCharCode(byte1, byte2, byte3, byte4) + "  foo");
+        }
+      }
+    }
+  }
+}