| // Copyright (c) 2013 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 "base/json/string_escape.h" |
| |
| #include <gtest/gtest.h> |
| #include <stddef.h> |
| |
| #include "base/macros.h" |
| #include "base/strings/string_util.h" |
| #include "base/strings/utf_string_conversion_utils.h" |
| |
| namespace base { |
| |
| TEST(JSONStringEscapeTest, EscapeUTF8) { |
| const struct { |
| const char* to_escape; |
| const char* escaped; |
| } cases[] = { |
| {"\b\001aZ\"\\wee", "\\b\\u0001aZ\\\"\\\\wee"}, |
| {"a\b\f\n\r\t\v\1\\.\"z", |
| "a\\b\\f\\n\\r\\t\\u000B\\u0001\\\\.\\\"z"}, |
| {"b\x0f\x7f\xf0\xff!", // \xf0\xff is not a valid UTF-8 unit. |
| "b\\u000F\x7F\xEF\xBF\xBD\xEF\xBF\xBD!"}, |
| {"c<>d", "c\\u003C>d"}, |
| {"Hello\xe2\x80\xa8world", "Hello\\u2028world"}, |
| {"\xe2\x80\xa9purple", "\\u2029purple"}, |
| }; |
| |
| for (size_t i = 0; i < arraysize(cases); ++i) { |
| const char* in_ptr = cases[i].to_escape; |
| std::string in_str = in_ptr; |
| |
| std::string out; |
| EscapeJSONString(in_ptr, false, &out); |
| EXPECT_EQ(std::string(cases[i].escaped), out); |
| EXPECT_TRUE(IsStringUTF8(out)); |
| |
| out.erase(); |
| bool convert_ok = EscapeJSONString(in_str, false, &out); |
| EXPECT_EQ(std::string(cases[i].escaped), out); |
| EXPECT_TRUE(IsStringUTF8(out)); |
| |
| if (convert_ok) { |
| std::string fooout = GetQuotedJSONString(in_str); |
| EXPECT_EQ("\"" + std::string(cases[i].escaped) + "\"", fooout); |
| EXPECT_TRUE(IsStringUTF8(out)); |
| } |
| } |
| |
| std::string in = cases[0].to_escape; |
| std::string out; |
| EscapeJSONString(in, false, &out); |
| EXPECT_TRUE(IsStringUTF8(out)); |
| |
| // test quoting |
| std::string out_quoted; |
| EscapeJSONString(in, true, &out_quoted); |
| EXPECT_EQ(out.length() + 2, out_quoted.length()); |
| EXPECT_EQ(out_quoted.find(out), 1U); |
| EXPECT_TRUE(IsStringUTF8(out_quoted)); |
| |
| // now try with a NULL in the string |
| std::string null_prepend = "test"; |
| null_prepend.push_back(0); |
| in = null_prepend + in; |
| std::string expected = "test\\u0000"; |
| expected += cases[0].escaped; |
| out.clear(); |
| EscapeJSONString(in, false, &out); |
| EXPECT_EQ(expected, out); |
| EXPECT_TRUE(IsStringUTF8(out)); |
| } |
| |
| TEST(JSONStringEscapeTest, EscapeBytes) { |
| const struct { |
| const char* to_escape; |
| const char* escaped; |
| } cases[] = { |
| {"b\x0f\x7f\xf0\xff!", "b\\u000F\\u007F\\u00F0\\u00FF!"}, |
| {"\xe5\xc4\x4f\x05\xb6\xfd", "\\u00E5\\u00C4O\\u0005\\u00B6\\u00FD"}, |
| }; |
| |
| for (size_t i = 0; i < arraysize(cases); ++i) { |
| std::string in = std::string(cases[i].to_escape); |
| EXPECT_FALSE(IsStringUTF8(in)); |
| |
| EXPECT_EQ(std::string(cases[i].escaped), |
| EscapeBytesAsInvalidJSONString(in, false)); |
| EXPECT_EQ("\"" + std::string(cases[i].escaped) + "\"", |
| EscapeBytesAsInvalidJSONString(in, true)); |
| } |
| |
| const char kEmbedNull[] = { '\xab', '\x39', '\0', '\x9f', '\xab' }; |
| std::string in(kEmbedNull, arraysize(kEmbedNull)); |
| EXPECT_FALSE(IsStringUTF8(in)); |
| EXPECT_EQ(std::string("\\u00AB9\\u0000\\u009F\\u00AB"), |
| EscapeBytesAsInvalidJSONString(in, false)); |
| } |
| |
| } // namespace base |