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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/trace_event/traced_value.h"
#include <cmath>
#include <cstddef>
#include <utility>
#include "base/strings/string_util.h"
#include "base/values.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace trace_event {
TEST(TraceEventArgumentTest, InitializerListCreatedContainers) {
std::string json;
TracedValue::Build(
{
{"empty_array", TracedValue::Array({})},
{"empty_dictionary", TracedValue::Dictionary({})},
{"nested_array", TracedValue::Array({
TracedValue::Array({}),
TracedValue::Dictionary({}),
true,
})},
{"nested_dictionary", TracedValue::Dictionary({
{"d", TracedValue::Dictionary({})},
{"a", TracedValue::Array({})},
{"b", true},
})},
})
->AppendAsTraceFormat(&json);
EXPECT_EQ(
"{\"empty_array\":[],\"empty_dictionary\":{},"
"\"nested_array\":[[],{},true],"
"\"nested_dictionary\":{\"d\":{},\"a\":[],\"b\":true}}",
json);
}
TEST(TraceEventArgumentTest, InitializerListCreatedFlatDictionary) {
std::string json;
TracedValue::Build({{"bool_var", true},
{"double_var", 3.14},
{"int_var", 2020},
{"literal_var", "literal"}})
->AppendAsTraceFormat(&json);
EXPECT_EQ(
"{\"bool_var\":true,\"double_var\":3.14,\"int_var\":2020,\""
"literal_var\":\"literal\"}",
json);
}
TEST(TraceEventArgumentTest, ArrayAndDictionaryScope) {
std::unique_ptr<TracedValue> value(new TracedValue());
{
auto dictionary = value->BeginDictionaryScoped("dictionary_name");
value->SetInteger("my_int", 1);
}
{
auto array = value->BeginArrayScoped("array_name");
value->AppendInteger(2);
}
{
auto surround_dictionary =
value->BeginDictionaryScoped("outside_dictionary");
value->SetBoolean("my_bool", true);
{
auto inside_array = value->BeginArrayScoped("inside_array");
value->AppendBoolean(false);
}
{
auto inside_array = value->BeginDictionaryScoped("inside_dictionary");
value->SetBoolean("inner_bool", false);
}
}
{
auto surround_array = value->BeginArrayScoped("outside_array");
value->AppendBoolean(false);
{
auto inside_dictionary = value->AppendDictionaryScoped();
value->SetBoolean("my_bool", true);
}
{
auto inside_array = value->AppendArrayScoped();
value->AppendBoolean(false);
}
}
{
auto dictionary = value->BeginDictionaryScopedWithCopiedName(
std::string("wonderful_") + std::string("world"));
}
{
auto array = value->BeginArrayScopedWithCopiedName(
std::string("wonderful_") + std::string("array"));
}
std::string json;
value->AppendAsTraceFormat(&json);
EXPECT_EQ(
"{"
"\"dictionary_name\":{\"my_int\":1},"
"\"array_name\":[2],"
"\"outside_dictionary\":{\"my_bool\":true,\"inside_array\":[false],"
"\"inside_dictionary\":{\"inner_bool\":false}},"
"\"outside_array\":[false,{\"my_bool\":true},[false]],"
"\"wonderful_world\":{},"
"\"wonderful_array\":[]"
"}",
json);
}
std::string SayHello() {
// Create a string by concatenating two strings, so that there is no literal
// corresponding to the result.
return std::string("hello ") + std::string("world");
}
TEST(TraceEventArgumentTest, StringAndPointerConstructors) {
std::string json;
const char* const_char_ptr_var = "const char* value";
TracedValue::Build(
{
{"literal_var", "literal"},
{"std_string_var", std::string("std::string value")},
{"string_from_function", SayHello()},
{"string_from_lambda", []() { return std::string("hello"); }()},
{"base_string_piece_var",
base::StringPiece("base::StringPiece value")},
{"const_char_ptr_var", const_char_ptr_var},
{"void_nullptr", static_cast<void*>(nullptr)},
{"int_nullptr", static_cast<int*>(nullptr)},
{"void_1234ptr", reinterpret_cast<void*>(0x1234)},
})
->AppendAsTraceFormat(&json);
EXPECT_EQ(
"{\"literal_var\":\"literal\","
"\"std_string_var\":\"std::string value\","
"\"string_from_function\":\"hello world\","
"\"string_from_lambda\":\"hello\","
"\"base_string_piece_var\":\"base::StringPiece value\","
"\"const_char_ptr_var\":\"const char* value\","
"\"void_nullptr\":\"0x0\","
"\"int_nullptr\":\"0x0\","
"\"void_1234ptr\":\"0x1234\"}",
json);
}
TEST(TraceEventArgumentTest, FlatDictionary) {
std::unique_ptr<TracedValue> value(new TracedValue());
value->SetBoolean("bool", true);
value->SetDouble("double", 0.0);
value->SetInteger("int", 2014);
value->SetString("string", "string");
value->SetPointer("ptr", reinterpret_cast<void*>(0x1234));
std::string json = "PREFIX";
value->AppendAsTraceFormat(&json);
EXPECT_EQ(
"PREFIX{\"bool\":true,\"double\":0.0,\"int\":2014,\"string\":\"string\","
"\"ptr\":\"0x1234\"}",
json);
}
TEST(TraceEventArgumentTest, NoDotPathExpansion) {
std::unique_ptr<TracedValue> value(new TracedValue());
value->SetBoolean("bo.ol", true);
value->SetDouble("doub.le", 0.0);
value->SetInteger("in.t", 2014);
value->SetString("str.ing", "str.ing");
std::string json;
value->AppendAsTraceFormat(&json);
EXPECT_EQ(
"{\"bo.ol\":true,\"doub.le\":0.0,\"in.t\":2014,\"str.ing\":\"str.ing\"}",
json);
}
TEST(TraceEventArgumentTest, Hierarchy) {
std::unique_ptr<TracedValue> value(new TracedValue());
value->BeginArray("a1");
value->AppendInteger(1);
value->AppendBoolean(true);
value->BeginDictionary();
value->SetInteger("i2", 3);
value->EndDictionary();
value->EndArray();
value->SetBoolean("b0", true);
value->SetDouble("d0", 0.0);
value->BeginDictionary("dict1");
value->BeginDictionary("dict2");
value->SetBoolean("b2", false);
value->EndDictionary();
value->SetInteger("i1", 2014);
value->SetString("s1", "foo");
value->EndDictionary();
value->SetInteger("i0", 2014);
value->SetString("s0", "foo");
std::string json;
value->AppendAsTraceFormat(&json);
EXPECT_EQ(
"{\"a1\":[1,true,{\"i2\":3}],\"b0\":true,\"d0\":0.0,\"dict1\":{\"dict2\":"
"{\"b2\":false},\"i1\":2014,\"s1\":\"foo\"},\"i0\":2014,\"s0\":"
"\"foo\"}",
json);
}
TEST(TraceEventArgumentTest, LongStrings) {
std::string kLongString = "supercalifragilisticexpialidocious";
std::string kLongString2 = "0123456789012345678901234567890123456789";
char kLongString3[4096];
for (size_t i = 0; i < sizeof(kLongString3); ++i)
kLongString3[i] = 'a' + (i % 25);
kLongString3[sizeof(kLongString3) - 1] = '\0';
std::unique_ptr<TracedValue> value(new TracedValue());
value->SetString("a", "short");
value->SetString("b", kLongString);
value->BeginArray("c");
value->AppendString(kLongString2);
value->AppendString("");
value->BeginDictionary();
value->SetString("a", kLongString3);
value->EndDictionary();
value->EndArray();
std::string json;
value->AppendAsTraceFormat(&json);
EXPECT_EQ("{\"a\":\"short\",\"b\":\"" + kLongString + "\",\"c\":[\"" +
kLongString2 + "\",\"\",{\"a\":\"" + kLongString3 + "\"}]}",
json);
}
TEST(TraceEventArgumentTest, PassTracedValue) {
auto dict_value = std::make_unique<TracedValue>();
dict_value->SetInteger("a", 1);
auto nested_dict_value = std::make_unique<TracedValue>();
nested_dict_value->SetInteger("b", 2);
nested_dict_value->BeginArray("c");
nested_dict_value->AppendString("foo");
nested_dict_value->EndArray();
dict_value->SetValue("e", nested_dict_value.get());
// Check the merged result.
std::string json;
dict_value->AppendAsTraceFormat(&json);
EXPECT_EQ("{\"a\":1,\"e\":{\"b\":2,\"c\":[\"foo\"]}}", json);
// Check that the passed nestd dict was left unouthced.
json = "";
nested_dict_value->AppendAsTraceFormat(&json);
EXPECT_EQ("{\"b\":2,\"c\":[\"foo\"]}", json);
// And that it is still usable.
nested_dict_value->SetInteger("f", 3);
nested_dict_value->BeginDictionary("g");
nested_dict_value->EndDictionary();
json = "";
nested_dict_value->AppendAsTraceFormat(&json);
EXPECT_EQ("{\"b\":2,\"c\":[\"foo\"],\"f\":3,\"g\":{}}", json);
}
TEST(TraceEventArgumentTest, NanAndInfinityJSON) {
TracedValueJSON value;
value.SetDouble("nan", std::nan(""));
value.SetDouble("infinity", INFINITY);
value.SetDouble("negInfinity", -INFINITY);
std::string json;
value.AppendAsTraceFormat(&json);
EXPECT_EQ(
"{\"nan\":\"NaN\",\"infinity\":\"Infinity\","
"\"negInfinity\":\"-Infinity\"}",
json);
std::string formatted_json = value.ToFormattedJSON();
// Remove CR and LF to make the result platform-independent.
ReplaceChars(formatted_json, "\n\r", "", &formatted_json);
EXPECT_EQ(
"{"
" \"infinity\": \"Infinity\","
" \"nan\": \"NaN\","
" \"negInfinity\": \"-Infinity\""
"}",
formatted_json);
}
} // namespace trace_event
} // namespace base
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