Do not truncate message strings.

test/cctest/test-api.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 7535 matching lines @@
   CHECK_EQ(2, message->GetLineNumber());
   CHECK_EQ(9, message->GetStartColumn());
 
   // Should be empty stack trace.
   stackTrace = message->GetStackTrace();
   CHECK(stackTrace.IsEmpty());
   CHECK(v8::Exception::GetStackTrace(error).IsEmpty());
 }
 
 
+THREADED_TEST(ExceptionCreateMessageLength) {
+  LocalContext context;
+  v8::HandleScope scope(context->GetIsolate());
+
+  // Test that the message is not truncated.
+  TryCatch try_catch(context->GetIsolate());
+  CompileRun(
+      "var message = 'm';"
+      "while (message.length < 1000) message += message;"
+      "throw message;");
+  CHECK(try_catch.HasCaught());
+
+  CHECK_LT(1000, try_catch.Message()->Get()->Length());
+}
+
+
 static void YGetter(Local<String> name,
                     const v8::PropertyCallbackInfo<v8::Value>& info) {
   ApiTestFuzzer::Fuzz();
   info.GetReturnValue().Set(v8_num(10));
 }
 
 
 static void YSetter(Local<String> name,
                     Local<Value> value,
                     const v8::PropertyCallbackInfo<void>& info) {
@@ skipping 14172 matching lines @@
   CHECK(set->Has(env.local(), set).FromJust());
 
   CHECK(set->Delete(env.local(), set).FromJust());
   CHECK_EQ(2U, set->Size());
   CHECK(!set->Has(env.local(), set).FromJust());
   CHECK(!set->Delete(env.local(), set).FromJust());
 
   set->Clear();
   CHECK_EQ(0U, set->Size());
 }