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