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// Copyright 2021 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_support.h"
#include "base/memory/ref_counted.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
#include "third_party/perfetto/include/perfetto/test/traced_value_test_support.h"
namespace base {
namespace trace_event {
namespace {
struct RefCountedData : RefCounted<RefCountedData> {
public:
explicit RefCountedData(std::string data) : data_(data) {}
void WriteIntoTrace(perfetto::TracedValue context) const {
std::move(context).WriteString(data_);
}
private:
~RefCountedData() = default;
friend class RefCounted<RefCountedData>;
std::string data_;
};
struct WeakData {
public:
explicit WeakData(std::string data) : data_(data) {}
void WriteIntoTrace(perfetto::TracedValue context) const {
std::move(context).WriteString(data_);
}
base::WeakPtr<const WeakData> GetWeakPtr() const {
return weak_ptr_factory_.GetWeakPtr();
}
private:
std::string data_;
base::WeakPtrFactory<WeakData> weak_ptr_factory_{this};
};
} // namespace
TEST(TracedValueSupportTest, ScopedRefPtr) {
EXPECT_EQ(
perfetto::TracedValueToString(scoped_refptr<RefCountedData>(nullptr)),
"0x0");
scoped_refptr<RefCountedData> data =
base::MakeRefCounted<RefCountedData>("refcounted");
EXPECT_EQ(perfetto::TracedValueToString(data), "refcounted");
}
TEST(TracedValueSupportTest, Optional) {
EXPECT_EQ(perfetto::TracedValueToString(absl::optional<int>()), "0x0");
EXPECT_EQ(perfetto::TracedValueToString(absl::optional<const int>(42)), "42");
}
TEST(TracedValueSupportTest, WeakPtr) {
std::unique_ptr<WeakData> data = std::make_unique<WeakData>("weak");
base::WeakPtr<const WeakData> weak_ptr = data->GetWeakPtr();
EXPECT_EQ(perfetto::TracedValueToString(weak_ptr), "weak");
data.reset();
EXPECT_EQ(perfetto::TracedValueToString(weak_ptr), "0x0");
}
TEST(TracedValueSupportTest, Time) {
EXPECT_EQ(perfetto::TracedValueToString(base::Microseconds(42)), "42");
EXPECT_EQ(
perfetto::TracedValueToString(base::Time() + base::Microseconds(42)),
"42");
EXPECT_EQ(
perfetto::TracedValueToString(base::TimeTicks() + base::Microseconds(42)),
"42");
}
TEST(TracedValueSupportTest, UnguessableToken) {
auto token = UnguessableToken::Create();
EXPECT_EQ(perfetto::TracedValueToString(token), token.ToString());
}
TEST(TracedValueSupportTest, UTF16String) {
EXPECT_EQ(perfetto::TracedValueToString(u"utf-16"), "utf-16");
EXPECT_EQ(
perfetto::TracedValueToString(static_cast<const char16_t*>(u"utf-16")),
"utf-16");
EXPECT_EQ(perfetto::TracedValueToString(std::u16string(u"utf-16")), "utf-16");
}
TEST(TracedValueSupportTest, WideString) {
EXPECT_EQ(perfetto::TracedValueToString(L"wide"), "wide");
EXPECT_EQ(perfetto::TracedValueToString(static_cast<const wchar_t*>(L"wide")),
"wide");
EXPECT_EQ(perfetto::TracedValueToString(std::wstring(L"wide")), "wide");
}
TEST(TracedValueSupportTest, StringPiece) {
EXPECT_EQ(perfetto::TracedValueToString(base::StringPiece("string")),
"string");
EXPECT_EQ(perfetto::TracedValueToString(base::StringPiece16(u"utf-16")),
"utf-16");
EXPECT_EQ(perfetto::TracedValueToString(base::WStringPiece(L"wide")), "wide");
}
TEST(TracedValueSupportTest, RawPtr) {
// Serialise nullptr.
EXPECT_EQ(perfetto::TracedValueToString(raw_ptr<int>()), "0x0");
{
// If the pointer is non-null, its dereferenced value will be serialised.
int value = 42;
raw_ptr<int> value_simple(&value);
raw_ptr<int, AllowPtrArithmetic> value_with_traits(&value);
EXPECT_EQ(perfetto::TracedValueToString(value), "42");
EXPECT_EQ(perfetto::TracedValueToString(value_with_traits), "42");
}
struct WithTraceSupport {
void WriteIntoTrace(perfetto::TracedValue ctx) const {
std::move(ctx).WriteString("result");
}
};
{
WithTraceSupport value;
raw_ptr<WithTraceSupport> value_simple(&value);
raw_ptr<WithTraceSupport, AllowPtrArithmetic> value_with_traits(&value);
EXPECT_EQ(perfetto::TracedValueToString(value_simple), "result");
EXPECT_EQ(perfetto::TracedValueToString(value_with_traits), "result");
}
}
TEST(TracedValueSupportTest, RawRef) {
{
int value = 42;
raw_ref<int> value_simple(value);
raw_ref<int, AllowPtrArithmetic> value_with_traits(value);
EXPECT_EQ(perfetto::TracedValueToString(value), "42");
EXPECT_EQ(perfetto::TracedValueToString(value_with_traits), "42");
}
struct WithTraceSupport {
void WriteIntoTrace(perfetto::TracedValue ctx) const {
std::move(ctx).WriteString("result");
}
};
{
WithTraceSupport value;
raw_ref<WithTraceSupport> value_simple(value);
raw_ref<WithTraceSupport, AllowPtrArithmetic> value_with_traits(value);
EXPECT_EQ(perfetto::TracedValueToString(value_simple), "result");
EXPECT_EQ(perfetto::TracedValueToString(value_with_traits), "result");
}
}
} // namespace trace_event
} // namespace base
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