IsStringUTF8 unittest and enforcing UTF-8 in JSON deserialization

base/json_reader_unittest.cc

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "base/json_reader.h"
 #include "base/values.h"
 #include "build/build_config.h"
 
 TEST(JSONReaderTest, Reading) {
@@ skipping 463 matching lines @@
   root = NULL;
   ASSERT_TRUE(JSONReader::JsonToValue("\"\xe7\xbd\x91\xe9\xa1\xb5\"", &root,
                                       false, false));
   ASSERT_TRUE(root);
   ASSERT_TRUE(root->IsType(Value::TYPE_STRING));
   str_val.clear();
   ASSERT_TRUE(root->GetAsString(&str_val));
   ASSERT_EQ(L"\x7f51\x9875", str_val);
   delete root;
 
+  // Test invalid utf8 encoded input
+  root = NULL;
+  ASSERT_FALSE(JSONReader::JsonToValue("\"345\xb0\xa1\xb0\xa2\"", &root,
+                                       false, false));
+  ASSERT_FALSE(JSONReader::JsonToValue("\"123\xc0\x81\"", &root,
+                                       false, false));
+
   // Test invalid root objects.
   root = NULL;
   ASSERT_FALSE(JSONReader::Read("null", &root, false));
   ASSERT_FALSE(JSONReader::Read("true", &root, false));
   ASSERT_FALSE(JSONReader::Read("10", &root, false));
   ASSERT_FALSE(JSONReader::Read("\"root\"", &root, false));
 }