Files
RedBear-OS/recipes/archives/zstd/source/contrib/pzstd/utils/test/BufferTest.cpp
T
vasilito ff4ff35918 feat: track all source trees in git — full fork offline-first model
Red Bear OS is a full fork. All sources must be available from git clone
with zero network access. Removed gitignore rules that excluded fetched
source trees under recipes/*/source/, local/recipes/kde/*/source/,
local/recipes/qt/*/source/, and vendor source trees.

Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded.

127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt
frameworks, mesa, wayland, DRM drivers, and every other recipe source.
2026-05-14 10:55:53 +01:00

90 lines
1.9 KiB
C++

/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
* All rights reserved.
*
* This source code is licensed under both the BSD-style license (found in the
* LICENSE file in the root directory of this source tree) and the GPLv2 (found
* in the COPYING file in the root directory of this source tree).
*/
#include "utils/Buffer.h"
#include "utils/Range.h"
#include <gtest/gtest.h>
#include <memory>
using namespace pzstd;
namespace {
void deleter(const unsigned char* buf) {
delete[] buf;
}
}
TEST(Buffer, Constructors) {
Buffer empty;
EXPECT_TRUE(empty.empty());
EXPECT_EQ(0, empty.size());
Buffer sized(5);
EXPECT_FALSE(sized.empty());
EXPECT_EQ(5, sized.size());
Buffer moved(std::move(sized));
EXPECT_FALSE(sized.empty());
EXPECT_EQ(5, sized.size());
Buffer assigned;
assigned = std::move(moved);
EXPECT_FALSE(sized.empty());
EXPECT_EQ(5, sized.size());
}
TEST(Buffer, BufferManagement) {
std::shared_ptr<unsigned char> buf(new unsigned char[10], deleter);
{
Buffer acquired(buf, MutableByteRange(buf.get(), buf.get() + 10));
EXPECT_EQ(2, buf.use_count());
Buffer moved(std::move(acquired));
EXPECT_EQ(2, buf.use_count());
Buffer assigned;
assigned = std::move(moved);
EXPECT_EQ(2, buf.use_count());
Buffer split = assigned.splitAt(5);
EXPECT_EQ(3, buf.use_count());
split.advance(1);
assigned.subtract(1);
EXPECT_EQ(3, buf.use_count());
}
EXPECT_EQ(1, buf.use_count());
}
TEST(Buffer, Modifiers) {
Buffer buf(10);
{
unsigned char i = 0;
for (auto& byte : buf.range()) {
byte = i++;
}
}
auto prefix = buf.splitAt(2);
ASSERT_EQ(2, prefix.size());
EXPECT_EQ(0, *prefix.data());
ASSERT_EQ(8, buf.size());
EXPECT_EQ(2, *buf.data());
buf.advance(2);
EXPECT_EQ(4, *buf.data());
EXPECT_EQ(9, *(buf.range().end() - 1));
buf.subtract(2);
EXPECT_EQ(7, *(buf.range().end() - 1));
EXPECT_EQ(4, buf.size());
}