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