Vitaly Buka | cbed206 | 2015-08-17 12:54:05 -0700 | [diff] [blame] | 1 | // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "base/json/string_escape.h" |
| 6 | |
Vitaly Buka | 8750b27 | 2015-08-18 18:39:08 -0700 | [diff] [blame] | 7 | #include <gtest/gtest.h> |
Alex Vakulenko | 674f0eb | 2016-01-20 08:10:48 -0800 | [diff] [blame] | 8 | #include <stddef.h> |
Vitaly Buka | 8750b27 | 2015-08-18 18:39:08 -0700 | [diff] [blame] | 9 | |
Alex Vakulenko | 674f0eb | 2016-01-20 08:10:48 -0800 | [diff] [blame] | 10 | #include "base/macros.h" |
Vitaly Buka | cbed206 | 2015-08-17 12:54:05 -0700 | [diff] [blame] | 11 | #include "base/strings/string_util.h" |
Vitaly Buka | 8750b27 | 2015-08-18 18:39:08 -0700 | [diff] [blame] | 12 | #include "base/strings/utf_string_conversion_utils.h" |
Vitaly Buka | cbed206 | 2015-08-17 12:54:05 -0700 | [diff] [blame] | 13 | |
| 14 | namespace base { |
| 15 | |
| 16 | TEST(JSONStringEscapeTest, EscapeUTF8) { |
| 17 | const struct { |
| 18 | const char* to_escape; |
| 19 | const char* escaped; |
| 20 | } cases[] = { |
| 21 | {"\b\001aZ\"\\wee", "\\b\\u0001aZ\\\"\\\\wee"}, |
| 22 | {"a\b\f\n\r\t\v\1\\.\"z", |
| 23 | "a\\b\\f\\n\\r\\t\\u000B\\u0001\\\\.\\\"z"}, |
| 24 | {"b\x0f\x7f\xf0\xff!", // \xf0\xff is not a valid UTF-8 unit. |
| 25 | "b\\u000F\x7F\xEF\xBF\xBD\xEF\xBF\xBD!"}, |
| 26 | {"c<>d", "c\\u003C>d"}, |
Alex Vakulenko | 674f0eb | 2016-01-20 08:10:48 -0800 | [diff] [blame] | 27 | {"Hello\xe2\x80\xa8world", "Hello\\u2028world"}, |
| 28 | {"\xe2\x80\xa9purple", "\\u2029purple"}, |
Vitaly Buka | cbed206 | 2015-08-17 12:54:05 -0700 | [diff] [blame] | 29 | }; |
| 30 | |
| 31 | for (size_t i = 0; i < arraysize(cases); ++i) { |
| 32 | const char* in_ptr = cases[i].to_escape; |
| 33 | std::string in_str = in_ptr; |
| 34 | |
| 35 | std::string out; |
| 36 | EscapeJSONString(in_ptr, false, &out); |
| 37 | EXPECT_EQ(std::string(cases[i].escaped), out); |
| 38 | EXPECT_TRUE(IsStringUTF8(out)); |
| 39 | |
| 40 | out.erase(); |
| 41 | bool convert_ok = EscapeJSONString(in_str, false, &out); |
| 42 | EXPECT_EQ(std::string(cases[i].escaped), out); |
| 43 | EXPECT_TRUE(IsStringUTF8(out)); |
| 44 | |
| 45 | if (convert_ok) { |
| 46 | std::string fooout = GetQuotedJSONString(in_str); |
| 47 | EXPECT_EQ("\"" + std::string(cases[i].escaped) + "\"", fooout); |
| 48 | EXPECT_TRUE(IsStringUTF8(out)); |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | std::string in = cases[0].to_escape; |
| 53 | std::string out; |
| 54 | EscapeJSONString(in, false, &out); |
| 55 | EXPECT_TRUE(IsStringUTF8(out)); |
| 56 | |
| 57 | // test quoting |
| 58 | std::string out_quoted; |
| 59 | EscapeJSONString(in, true, &out_quoted); |
| 60 | EXPECT_EQ(out.length() + 2, out_quoted.length()); |
| 61 | EXPECT_EQ(out_quoted.find(out), 1U); |
| 62 | EXPECT_TRUE(IsStringUTF8(out_quoted)); |
| 63 | |
| 64 | // now try with a NULL in the string |
| 65 | std::string null_prepend = "test"; |
| 66 | null_prepend.push_back(0); |
| 67 | in = null_prepend + in; |
| 68 | std::string expected = "test\\u0000"; |
| 69 | expected += cases[0].escaped; |
| 70 | out.clear(); |
| 71 | EscapeJSONString(in, false, &out); |
| 72 | EXPECT_EQ(expected, out); |
| 73 | EXPECT_TRUE(IsStringUTF8(out)); |
| 74 | } |
| 75 | |
Vitaly Buka | cbed206 | 2015-08-17 12:54:05 -0700 | [diff] [blame] | 76 | TEST(JSONStringEscapeTest, EscapeBytes) { |
| 77 | const struct { |
| 78 | const char* to_escape; |
| 79 | const char* escaped; |
| 80 | } cases[] = { |
| 81 | {"b\x0f\x7f\xf0\xff!", "b\\u000F\\u007F\\u00F0\\u00FF!"}, |
| 82 | {"\xe5\xc4\x4f\x05\xb6\xfd", "\\u00E5\\u00C4O\\u0005\\u00B6\\u00FD"}, |
| 83 | }; |
| 84 | |
| 85 | for (size_t i = 0; i < arraysize(cases); ++i) { |
| 86 | std::string in = std::string(cases[i].to_escape); |
| 87 | EXPECT_FALSE(IsStringUTF8(in)); |
| 88 | |
| 89 | EXPECT_EQ(std::string(cases[i].escaped), |
| 90 | EscapeBytesAsInvalidJSONString(in, false)); |
| 91 | EXPECT_EQ("\"" + std::string(cases[i].escaped) + "\"", |
| 92 | EscapeBytesAsInvalidJSONString(in, true)); |
| 93 | } |
| 94 | |
| 95 | const char kEmbedNull[] = { '\xab', '\x39', '\0', '\x9f', '\xab' }; |
| 96 | std::string in(kEmbedNull, arraysize(kEmbedNull)); |
| 97 | EXPECT_FALSE(IsStringUTF8(in)); |
| 98 | EXPECT_EQ(std::string("\\u00AB9\\u0000\\u009F\\u00AB"), |
| 99 | EscapeBytesAsInvalidJSONString(in, false)); |
| 100 | } |
| 101 | |
| 102 | } // namespace base |