base/json_writer_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 "testing/gtest/include/gtest/gtest.h"
   6 #include "base/json_writer.h"
   7 #include "base/values.h"
   8
   9 TEST(JSONWriterTest, Writing) {
  10   // Test null
  11   Value* root = Value::CreateNullValue();
  12   std::string output_js;
  13   JSONWriter::Write(root, false, &output_js);
  14   ASSERT_EQ("null", output_js);
  15   delete root;
  16
  17   // Test empty dict
  18   root = new DictionaryValue;
  19   JSONWriter::Write(root, false, &output_js);
  20   ASSERT_EQ("{}", output_js);
  21   delete root;
  22
  23   // Test empty list
  24   root = new ListValue;
  25   JSONWriter::Write(root, false, &output_js);
  26   ASSERT_EQ("[]", output_js);
  27   delete root;
  28
  29   // Test Real values should always have a decimal or an 'e'.
  30   root = Value::CreateRealValue(1.0);
  31   JSONWriter::Write(root, false, &output_js);
  32   ASSERT_EQ("1.0", output_js);
  33   delete root;
  34
  35   // Writer unittests like empty list/dict nesting,
  36   // list list nesting, etc.
  37   DictionaryValue root_dict;
  38   ListValue* list = new ListValue;
  39   root_dict.Set(L"list", list);
  40   DictionaryValue* inner_dict = new DictionaryValue;
  41   list->Append(inner_dict);
  42   inner_dict->SetInteger(L"inner int", 10);
  43   ListValue* inner_list = new ListValue;
  44   list->Append(inner_list);
  45   list->Append(Value::CreateBooleanValue(true));
  46
  47   JSONWriter::Write(&root_dict, false, &output_js);
  48   ASSERT_EQ("{\"list\":[{\"inner int\":10},[],true]}", output_js);
  49   JSONWriter::Write(&root_dict, true, &output_js);
  50   ASSERT_EQ("{\r\n"
  51             "   \"list\": [ {\r\n"
  52             "      \"inner int\": 10\r\n"
  53             "   }, [  ], true ]\r\n"
  54             "}\r\n",
  55             output_js);
  56 }
  57
  58