1 // Copyright (c) 2009 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.
5 #include "base/json/json_writer.h"
6 #include "base/values.h"
7 #include "testing/gtest/include/gtest/gtest.h"
11 TEST(JSONWriterTest
, Writing
) {
13 Value
* root
= Value::CreateNullValue();
14 std::string output_js
;
15 JSONWriter::Write(root
, false, &output_js
);
16 ASSERT_EQ("null", output_js
);
20 root
= new DictionaryValue
;
21 JSONWriter::Write(root
, false, &output_js
);
22 ASSERT_EQ("{}", output_js
);
27 JSONWriter::Write(root
, false, &output_js
);
28 ASSERT_EQ("[]", output_js
);
31 // Test Real values should always have a decimal or an 'e'.
32 root
= Value::CreateRealValue(1.0);
33 JSONWriter::Write(root
, false, &output_js
);
34 ASSERT_EQ("1.0", output_js
);
37 // Test Real values in the the range (-1, 1) must have leading zeros
38 root
= Value::CreateRealValue(0.2);
39 JSONWriter::Write(root
, false, &output_js
);
40 ASSERT_EQ("0.2", output_js
);
43 // Test Real values in the the range (-1, 1) must have leading zeros
44 root
= Value::CreateRealValue(-0.8);
45 JSONWriter::Write(root
, false, &output_js
);
46 ASSERT_EQ("-0.8", output_js
);
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(L
"list", list
);
54 DictionaryValue
* inner_dict
= new DictionaryValue
;
55 list
->Append(inner_dict
);
56 inner_dict
->SetInteger(L
"inner int", 10);
57 ListValue
* inner_list
= new ListValue
;
58 list
->Append(inner_list
);
59 list
->Append(Value::CreateBooleanValue(true));
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
68 #define JSON_NEWLINE "\r\n"
70 #define JSON_NEWLINE "\n"
72 ASSERT_EQ("{" JSON_NEWLINE
73 " \"list\": [ {" JSON_NEWLINE
74 " \"inner int\": 10" JSON_NEWLINE
75 " }, [ ], true ]" JSON_NEWLINE
80 // Test keys with periods
81 DictionaryValue period_dict
;
82 period_dict
.SetWithoutPathExpansion(L
"a.b", Value::CreateIntegerValue(3));
83 period_dict
.SetWithoutPathExpansion(L
"c", Value::CreateIntegerValue(2));
84 DictionaryValue
* period_dict2
= new DictionaryValue
;
85 period_dict2
->SetWithoutPathExpansion(L
"g.h.i.j",
86 Value::CreateIntegerValue(1));
87 period_dict
.SetWithoutPathExpansion(L
"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
);
91 DictionaryValue period_dict3
;
92 period_dict3
.Set(L
"a.b", Value::CreateIntegerValue(2));
93 period_dict3
.SetWithoutPathExpansion(L
"a.b", Value::CreateIntegerValue(1));
94 JSONWriter::Write(&period_dict3
, false, &output_js
);
95 ASSERT_EQ("{\"a\":{\"b\":2},\"a.b\":1}", output_js
);