Vitaly Buka | cbed206 | 2015-08-17 12:54:05 -0700 | [diff] [blame] | 1 | // Copyright (c) 2012 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" |
Vitaly Buka | 8750b27 | 2015-08-18 18:39:08 -0700 | [diff] [blame] | 6 | |
| 7 | #include <gtest/gtest.h> |
| 8 | |
Vitaly Buka | cbed206 | 2015-08-17 12:54:05 -0700 | [diff] [blame] | 9 | #include "base/values.h" |
Vitaly Buka | cbed206 | 2015-08-17 12:54:05 -0700 | [diff] [blame] | 10 | |
| 11 | namespace base { |
| 12 | |
| 13 | TEST(JSONWriterTest, BasicTypes) { |
| 14 | std::string output_js; |
| 15 | |
| 16 | // Test null. |
| 17 | EXPECT_TRUE(JSONWriter::Write(*Value::CreateNullValue(), &output_js)); |
| 18 | EXPECT_EQ("null", output_js); |
| 19 | |
| 20 | // Test empty dict. |
| 21 | EXPECT_TRUE(JSONWriter::Write(DictionaryValue(), &output_js)); |
| 22 | EXPECT_EQ("{}", output_js); |
| 23 | |
| 24 | // Test empty list. |
| 25 | EXPECT_TRUE(JSONWriter::Write(ListValue(), &output_js)); |
| 26 | EXPECT_EQ("[]", output_js); |
| 27 | |
| 28 | // Test integer values. |
| 29 | EXPECT_TRUE(JSONWriter::Write(FundamentalValue(42), &output_js)); |
| 30 | EXPECT_EQ("42", output_js); |
| 31 | |
| 32 | // Test boolean values. |
| 33 | EXPECT_TRUE(JSONWriter::Write(FundamentalValue(true), &output_js)); |
| 34 | EXPECT_EQ("true", output_js); |
| 35 | |
| 36 | // Test Real values should always have a decimal or an 'e'. |
| 37 | EXPECT_TRUE(JSONWriter::Write(FundamentalValue(1.0), &output_js)); |
| 38 | EXPECT_EQ("1.0", output_js); |
| 39 | |
| 40 | // Test Real values in the the range (-1, 1) must have leading zeros |
| 41 | EXPECT_TRUE(JSONWriter::Write(FundamentalValue(0.2), &output_js)); |
| 42 | EXPECT_EQ("0.2", output_js); |
| 43 | |
| 44 | // Test Real values in the the range (-1, 1) must have leading zeros |
| 45 | EXPECT_TRUE(JSONWriter::Write(FundamentalValue(-0.8), &output_js)); |
| 46 | EXPECT_EQ("-0.8", output_js); |
| 47 | |
| 48 | // Test String values. |
| 49 | EXPECT_TRUE(JSONWriter::Write(StringValue("foo"), &output_js)); |
| 50 | EXPECT_EQ("\"foo\"", output_js); |
| 51 | } |
| 52 | |
| 53 | TEST(JSONWriterTest, NestedTypes) { |
| 54 | std::string output_js; |
| 55 | |
| 56 | // Writer unittests like empty list/dict nesting, |
| 57 | // list list nesting, etc. |
| 58 | DictionaryValue root_dict; |
| 59 | scoped_ptr<ListValue> list(new ListValue()); |
| 60 | scoped_ptr<DictionaryValue> inner_dict(new DictionaryValue()); |
| 61 | inner_dict->SetInteger("inner int", 10); |
| 62 | list->Append(inner_dict.Pass()); |
| 63 | list->Append(make_scoped_ptr(new ListValue())); |
| 64 | list->AppendBoolean(true); |
| 65 | root_dict.Set("list", list.Pass()); |
| 66 | |
| 67 | // Test the pretty-printer. |
| 68 | EXPECT_TRUE(JSONWriter::Write(root_dict, &output_js)); |
| 69 | EXPECT_EQ("{\"list\":[{\"inner int\":10},[],true]}", output_js); |
| 70 | EXPECT_TRUE(JSONWriter::WriteWithOptions( |
| 71 | root_dict, JSONWriter::OPTIONS_PRETTY_PRINT, &output_js)); |
| 72 | |
| 73 | // The pretty-printer uses a different newline style on Windows than on |
| 74 | // other platforms. |
| 75 | #if defined(OS_WIN) |
| 76 | #define JSON_NEWLINE "\r\n" |
| 77 | #else |
| 78 | #define JSON_NEWLINE "\n" |
| 79 | #endif |
| 80 | EXPECT_EQ("{" JSON_NEWLINE |
| 81 | " \"list\": [ {" JSON_NEWLINE |
| 82 | " \"inner int\": 10" JSON_NEWLINE |
| 83 | " }, [ ], true ]" JSON_NEWLINE |
| 84 | "}" JSON_NEWLINE, |
| 85 | output_js); |
| 86 | #undef JSON_NEWLINE |
| 87 | } |
| 88 | |
| 89 | TEST(JSONWriterTest, KeysWithPeriods) { |
| 90 | std::string output_js; |
| 91 | |
| 92 | DictionaryValue period_dict; |
| 93 | period_dict.SetIntegerWithoutPathExpansion("a.b", 3); |
| 94 | period_dict.SetIntegerWithoutPathExpansion("c", 2); |
| 95 | scoped_ptr<DictionaryValue> period_dict2(new DictionaryValue()); |
| 96 | period_dict2->SetIntegerWithoutPathExpansion("g.h.i.j", 1); |
| 97 | period_dict.SetWithoutPathExpansion("d.e.f", period_dict2.Pass()); |
| 98 | EXPECT_TRUE(JSONWriter::Write(period_dict, &output_js)); |
| 99 | EXPECT_EQ("{\"a.b\":3,\"c\":2,\"d.e.f\":{\"g.h.i.j\":1}}", output_js); |
| 100 | |
| 101 | DictionaryValue period_dict3; |
| 102 | period_dict3.SetInteger("a.b", 2); |
| 103 | period_dict3.SetIntegerWithoutPathExpansion("a.b", 1); |
| 104 | EXPECT_TRUE(JSONWriter::Write(period_dict3, &output_js)); |
| 105 | EXPECT_EQ("{\"a\":{\"b\":2},\"a.b\":1}", output_js); |
| 106 | } |
| 107 | |
| 108 | TEST(JSONWriterTest, BinaryValues) { |
| 109 | std::string output_js; |
| 110 | |
| 111 | // Binary values should return errors unless suppressed via the |
| 112 | // OPTIONS_OMIT_BINARY_VALUES flag. |
| 113 | scoped_ptr<Value> root(BinaryValue::CreateWithCopiedBuffer("asdf", 4)); |
| 114 | EXPECT_FALSE(JSONWriter::Write(*root, &output_js)); |
| 115 | EXPECT_TRUE(JSONWriter::WriteWithOptions( |
| 116 | *root, JSONWriter::OPTIONS_OMIT_BINARY_VALUES, &output_js)); |
| 117 | EXPECT_TRUE(output_js.empty()); |
| 118 | |
| 119 | ListValue binary_list; |
| 120 | binary_list.Append(BinaryValue::CreateWithCopiedBuffer("asdf", 4)); |
| 121 | binary_list.Append(make_scoped_ptr(new FundamentalValue(5))); |
| 122 | binary_list.Append(BinaryValue::CreateWithCopiedBuffer("asdf", 4)); |
| 123 | binary_list.Append(make_scoped_ptr(new FundamentalValue(2))); |
| 124 | binary_list.Append(BinaryValue::CreateWithCopiedBuffer("asdf", 4)); |
| 125 | EXPECT_FALSE(JSONWriter::Write(binary_list, &output_js)); |
| 126 | EXPECT_TRUE(JSONWriter::WriteWithOptions( |
| 127 | binary_list, JSONWriter::OPTIONS_OMIT_BINARY_VALUES, &output_js)); |
| 128 | EXPECT_EQ("[5,2]", output_js); |
| 129 | |
| 130 | DictionaryValue binary_dict; |
| 131 | binary_dict.Set( |
| 132 | "a", make_scoped_ptr(BinaryValue::CreateWithCopiedBuffer("asdf", 4))); |
| 133 | binary_dict.SetInteger("b", 5); |
| 134 | binary_dict.Set( |
| 135 | "c", make_scoped_ptr(BinaryValue::CreateWithCopiedBuffer("asdf", 4))); |
| 136 | binary_dict.SetInteger("d", 2); |
| 137 | binary_dict.Set( |
| 138 | "e", make_scoped_ptr(BinaryValue::CreateWithCopiedBuffer("asdf", 4))); |
| 139 | EXPECT_FALSE(JSONWriter::Write(binary_dict, &output_js)); |
| 140 | EXPECT_TRUE(JSONWriter::WriteWithOptions( |
| 141 | binary_dict, JSONWriter::OPTIONS_OMIT_BINARY_VALUES, &output_js)); |
| 142 | EXPECT_EQ("{\"b\":5,\"d\":2}", output_js); |
| 143 | } |
| 144 | |
| 145 | TEST(JSONWriterTest, DoublesAsInts) { |
| 146 | std::string output_js; |
| 147 | |
| 148 | // Test allowing a double with no fractional part to be written as an integer. |
| 149 | FundamentalValue double_value(1e10); |
| 150 | EXPECT_TRUE(JSONWriter::WriteWithOptions( |
| 151 | double_value, JSONWriter::OPTIONS_OMIT_DOUBLE_TYPE_PRESERVATION, |
| 152 | &output_js)); |
| 153 | EXPECT_EQ("10000000000", output_js); |
| 154 | } |
| 155 | |
| 156 | } // namespace base |