1 // Copyright (c) 2010 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/json_writer.h" 6 #include "base/values.h" 7 #include "testing/gtest/include/gtest/gtest.h" 8 9 namespace base { 10 11 TEST(JSONWriterTest, Writing) { 12 // Test null 13 Value* root = Value::CreateNullValue(); 14 std::string output_js; 15 JSONWriter::Write(root, false, &output_js); 16 ASSERT_EQ("null", output_js); 17 delete root; 18 19 // Test empty dict 20 root = new DictionaryValue; 21 JSONWriter::Write(root, false, &output_js); 22 ASSERT_EQ("{}", output_js); 23 delete root; 24 25 // Test empty list 26 root = new ListValue; 27 JSONWriter::Write(root, false, &output_js); 28 ASSERT_EQ("[]", output_js); 29 delete root; 30 31 // Test Real values should always have a decimal or an 'e'. 32 root = Value::CreateDoubleValue(1.0); 33 JSONWriter::Write(root, false, &output_js); 34 ASSERT_EQ("1.0", output_js); 35 delete root; 36 37 // Test Real values in the the range (-1, 1) must have leading zeros 38 root = Value::CreateDoubleValue(0.2); 39 JSONWriter::Write(root, false, &output_js); 40 ASSERT_EQ("0.2", output_js); 41 delete root; 42 43 // Test Real values in the the range (-1, 1) must have leading zeros 44 root = Value::CreateDoubleValue(-0.8); 45 JSONWriter::Write(root, false, &output_js); 46 ASSERT_EQ("-0.8", output_js); 47 delete root; 48 49 // Writer unittests like empty list/dict nesting, 50 // list list nesting, etc. 51 DictionaryValue root_dict; 52 ListValue* list = new ListValue; 53 root_dict.Set("list", list); 54 DictionaryValue* inner_dict = new DictionaryValue; 55 list->Append(inner_dict); 56 inner_dict->SetInteger("inner int", 10); 57 ListValue* inner_list = new ListValue; 58 list->Append(inner_list); 59 list->Append(Value::CreateBooleanValue(true)); 60 61 // Test the pretty-printer. 62 JSONWriter::Write(&root_dict, false, &output_js); 63 ASSERT_EQ("{\"list\":[{\"inner int\":10},[],true]}", output_js); 64 JSONWriter::Write(&root_dict, true, &output_js); 65 // The pretty-printer uses a different newline style on Windows than on 66 // other platforms. 67 #if defined(OS_WIN) 68 #define JSON_NEWLINE "\r\n" 69 #else 70 #define JSON_NEWLINE "\n" 71 #endif 72 ASSERT_EQ("{" JSON_NEWLINE 73 " \"list\": [ {" JSON_NEWLINE 74 " \"inner int\": 10" JSON_NEWLINE 75 " }, [ ], true ]" JSON_NEWLINE 76 "}" JSON_NEWLINE, 77 output_js); 78 #undef JSON_NEWLINE 79 80 // Test keys with periods 81 DictionaryValue period_dict; 82 period_dict.SetWithoutPathExpansion("a.b", Value::CreateIntegerValue(3)); 83 period_dict.SetWithoutPathExpansion("c", Value::CreateIntegerValue(2)); 84 DictionaryValue* period_dict2 = new DictionaryValue; 85 period_dict2->SetWithoutPathExpansion("g.h.i.j", 86 Value::CreateIntegerValue(1)); 87 period_dict.SetWithoutPathExpansion("d.e.f", period_dict2); 88 JSONWriter::Write(&period_dict, false, &output_js); 89 ASSERT_EQ("{\"a.b\":3,\"c\":2,\"d.e.f\":{\"g.h.i.j\":1}}", output_js); 90 91 DictionaryValue period_dict3; 92 period_dict3.Set("a.b", Value::CreateIntegerValue(2)); 93 period_dict3.SetWithoutPathExpansion("a.b", Value::CreateIntegerValue(1)); 94 JSONWriter::Write(&period_dict3, false, &output_js); 95 ASSERT_EQ("{\"a\":{\"b\":2},\"a.b\":1}", output_js); 96 } 97 98 } // namespace base 99
