transmission/tests/libtransmission/buffer-test.cc

144 lines
4.0 KiB
C++

// This file Copyright (C) 2013-2022 Mnemosyne LLC.
// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
// or any future license endorsed by Mnemosyne LLC.
// License text can be found in the licenses/ folder.
#include <libtransmission/transmission.h>
#include <libtransmission/tr-buffer.h>
#include "test-fixtures.h"
using BufferTest = ::testing::Test;
using namespace std::literals;
using Buffer = libtransmission::Buffer;
TEST_F(BufferTest, startsWithInSingleSegment)
{
auto constexpr Hello = "Hello, "sv;
auto constexpr World = "World"sv;
auto constexpr Bang = "!"sv;
auto buf = Buffer{};
buf.add(Hello);
EXPECT_TRUE(buf.starts_with(Hello));
buf.add(World);
EXPECT_TRUE(buf.starts_with(Hello));
EXPECT_TRUE(buf.starts_with("Hello, Worl"sv));
EXPECT_TRUE(buf.starts_with("Hello, World"sv));
EXPECT_FALSE(buf.starts_with("Hello, World!"sv));
EXPECT_FALSE(buf.starts_with("Hello!"sv));
buf.add(Bang);
EXPECT_FALSE(buf.starts_with("Hello!"));
EXPECT_TRUE(buf.starts_with(Hello));
EXPECT_TRUE(buf.starts_with("Hello, Worl"sv));
EXPECT_TRUE(buf.starts_with("Hello, World"sv));
EXPECT_TRUE(buf.starts_with("Hello, World!"sv));
}
TEST_F(BufferTest, startsWithInMultiSegment)
{
auto constexpr Hello = "Hello, "sv;
auto constexpr World = "World"sv;
auto constexpr Bang = "!"sv;
auto buf = std::make_unique<Buffer>();
buf->add(Buffer{ Hello });
EXPECT_TRUE(buf->starts_with(Hello));
buf->add(Buffer{ World });
EXPECT_TRUE(buf->starts_with(Hello));
EXPECT_TRUE(buf->starts_with("Hello, Worl"sv));
EXPECT_TRUE(buf->starts_with("Hello, World"sv));
EXPECT_FALSE(buf->starts_with("Hello, World!"sv));
EXPECT_FALSE(buf->starts_with("Hello!"sv));
buf->add(Buffer{ Bang });
EXPECT_FALSE(buf->starts_with("Hello!"));
EXPECT_TRUE(buf->starts_with(Hello));
EXPECT_TRUE(buf->starts_with("Hello, Worl"sv));
EXPECT_TRUE(buf->starts_with("Hello, World"sv));
EXPECT_TRUE(buf->starts_with("Hello, World!"sv));
}
TEST_F(BufferTest, Move)
{
auto constexpr TwoChars = "12"sv;
auto constexpr SixChars = "123456"sv;
auto constexpr TenChars = "1234567890"sv;
auto a = Buffer{ TwoChars };
auto b = Buffer{ SixChars };
auto c = Buffer{ TenChars };
auto lens = std::array<size_t, 3>{ std::size(TwoChars), std::size(SixChars), std::size(TenChars) };
EXPECT_EQ(lens[0], std::size(a));
EXPECT_EQ(lens[1], std::size(b));
EXPECT_EQ(lens[2], std::size(c));
std::swap(a, b);
EXPECT_EQ(lens[0], std::size(b));
EXPECT_EQ(lens[1], std::size(a));
EXPECT_EQ(lens[2], std::size(c));
std::swap(a, c);
EXPECT_EQ(lens[0], std::size(b));
EXPECT_EQ(lens[1], std::size(c));
EXPECT_EQ(lens[2], std::size(a));
std::swap(b, c);
EXPECT_EQ(lens[0], std::size(c));
EXPECT_EQ(lens[1], std::size(b));
EXPECT_EQ(lens[2], std::size(a));
a.add(std::data(TwoChars), std::size(TwoChars));
{
auto constexpr OneChar = "1"sv;
auto d = Buffer{ OneChar };
std::swap(a, d);
EXPECT_EQ(1U, std::size(a));
}
EXPECT_EQ(1U, std::size(a));
a.add(std::data(TwoChars), std::size(TwoChars));
EXPECT_EQ(3U, std::size(a));
}
TEST_F(BufferTest, NonBufferWriter)
{
auto constexpr Hello = "Hello, "sv;
auto constexpr World = "World"sv;
auto constexpr Bang = "!"sv;
auto out1 = Buffer{};
auto out2_vec = std::vector<std::byte>{};
auto out2 = libtransmission::BufferWriter<std::vector<std::byte>, std::byte>{ &out2_vec };
out1.add_uint8(1);
out2.add_uint8(1);
out1.add_uint16(1);
out2.add_uint16(1);
out1.add_uint32(1);
out2.add_uint32(1);
out1.add(Hello);
out2.add(Hello);
out1.add(World);
out2.add(World);
out1.add(Bang);
out2.add(Bang);
auto const result1 = out1.pullup_sv();
auto const result2 = std::string_view{ reinterpret_cast<char const*>(std::data(out2_vec)), std::size(out2_vec) };
EXPECT_EQ(result1, result2);
}