src/base/json/string_escape_unittest.cc

   1 // Copyright (c) 2006-2008 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 #include "base/strings/utf_string_conversions.h"
   7 #include "testing/gtest/include/gtest/gtest.h"
   8
   9 namespace base {
  10
  11 namespace {
  12
  13 const struct json_narrow_test_data {
  14   const char* to_escape;
  15   const char* escaped;
  16 } json_narrow_cases[] = {
  17   {"\b\001aZ\"\\wee", "\\b\\u0001aZ\\\"\\\\wee"},
  18   {"a\b\f\n\r\t\v\1\\.\"z",
  19       "a\\b\\f\\n\\r\\t\\u000B\\u0001\\\\.\\\"z"},
  20   {"b\x0f\x7f\xf0\xff!", "b\\u000F\\u007F\\u00F0\\u00FF!"},
  21   {"c<>d", "c\\u003C\\u003Ed"},
  22 };
  23
  24 }  // namespace
  25
  26 TEST(StringEscapeTest, JsonDoubleQuoteNarrow) {
  27   for (size_t i = 0; i < arraysize(json_narrow_cases); ++i) {
  28     const char* in_ptr = json_narrow_cases[i].to_escape;
  29     std::string in_str = in_ptr;
  30     std::string out;
  31     JsonDoubleQuote(in_ptr, false, &out);
  32     EXPECT_EQ(std::string(json_narrow_cases[i].escaped), out);
  33     out.erase();
  34     JsonDoubleQuote(in_str, false, &out);
  35     EXPECT_EQ(std::string(json_narrow_cases[i].escaped), out);
  36   }
  37
  38   std::string in = json_narrow_cases[0].to_escape;
  39   std::string out;
  40   JsonDoubleQuote(in, false, &out);
  41
  42   // test quoting
  43   std::string out_quoted;
  44   JsonDoubleQuote(in, true, &out_quoted);
  45   EXPECT_EQ(out.length() + 2, out_quoted.length());
  46   EXPECT_EQ(out_quoted.find(out), 1U);
  47
  48   // now try with a NULL in the string
  49   std::string null_prepend = "test";
  50   null_prepend.push_back(0);
  51   in = null_prepend + in;
  52   std::string expected = "test\\u0000";
  53   expected += json_narrow_cases[0].escaped;
  54   out.clear();
  55   JsonDoubleQuote(in, false, &out);
  56   EXPECT_EQ(expected, out);
  57 }
  58
  59 namespace {
  60
  61 const struct json_wide_test_data {
  62   const wchar_t* to_escape;
  63   const char* escaped;
  64 } json_wide_cases[] = {
  65   {L"b\uffb1\u00ff", "b\\uFFB1\\u00FF"},
  66   {L"\b\001aZ\"\\wee", "\\b\\u0001aZ\\\"\\\\wee"},
  67   {L"a\b\f\n\r\t\v\1\\.\"z",
  68       "a\\b\\f\\n\\r\\t\\u000B\\u0001\\\\.\\\"z"},
  69   {L"b\x0f\x7f\xf0\xff!", "b\\u000F\\u007F\\u00F0\\u00FF!"},
  70   {L"c<>d", "c\\u003C\\u003Ed"},
  71 };
  72
  73 }  // namespace
  74
  75 TEST(StringEscapeTest, JsonDoubleQuoteWide) {
  76   for (size_t i = 0; i < arraysize(json_wide_cases); ++i) {
  77     std::string out;
  78     string16 in = WideToUTF16(json_wide_cases[i].to_escape);
  79     JsonDoubleQuote(in, false, &out);
  80     EXPECT_EQ(std::string(json_wide_cases[i].escaped), out);
  81   }
  82
  83   string16 in = WideToUTF16(json_wide_cases[0].to_escape);
  84   std::string out;
  85   JsonDoubleQuote(in, false, &out);
  86
  87   // test quoting
  88   std::string out_quoted;
  89   JsonDoubleQuote(in, true, &out_quoted);
  90   EXPECT_EQ(out.length() + 2, out_quoted.length());
  91   EXPECT_EQ(out_quoted.find(out), 1U);
  92
  93   // now try with a NULL in the string
  94   string16 null_prepend = WideToUTF16(L"test");
  95   null_prepend.push_back(0);
  96   in = null_prepend + in;
  97   std::string expected = "test\\u0000";
  98   expected += json_wide_cases[0].escaped;
  99   out.clear();
 100   JsonDoubleQuote(in, false, &out);
 101   EXPECT_EQ(expected, out);
 102 }
 103
 104 }  // namespace base