101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
// This file Copyright (C) 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 <cstdint> // int64_t
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#include <string_view>
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#include <fmt/core.h>
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#include <libtransmission/benc.h>
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#include <libtransmission/error.h>
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#include "gtest/gtest.h"
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using BencTest = ::testing::Test;
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using namespace std::literals;
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TEST_F(BencTest, MalformedBenc)
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{
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// malformed benc seen in the wild. "119" length is incorrect.
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auto constexpr Benc =
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"d14:failure reason119:The tracker was unable to process your request. It may be down, overloaded, under attack or it just does not like you.12:min intervali1800e8:intervali1800e5:peers0:ee\n"sv;
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auto constexpr MaxBencDepth = 8;
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using TestHandler = transmission::benc::BasicHandler<MaxBencDepth>;
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auto stack = transmission::benc::ParserStack<MaxBencDepth>{};
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auto handler = TestHandler{};
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auto error = tr_error{};
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EXPECT_FALSE(transmission::benc::parse(Benc, stack, handler, nullptr, &error));
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EXPECT_TRUE(error);
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EXPECT_NE(""sv, error.message());
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}
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TEST_F(BencTest, ContextTokenIsCorrect)
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{
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// clang-format off
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auto constexpr Benc =
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"d"
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"8:complete" "i3e"
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"10:downloaded" "i2e"
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"10:incomplete" "i0e"
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"8:interval" "i1803e"
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"12:min interval" "i1800e"
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"5:peers" "0:"
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"e"sv;
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// clang-format on
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auto constexpr MaxBencDepth = 32;
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struct ContextHandler final : public transmission::benc::BasicHandler<MaxBencDepth>
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{
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using BasicHandler = transmission::benc::BasicHandler<MaxBencDepth>;
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bool StartArray(Context const& context) override
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{
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BasicHandler::StartArray(context);
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EXPECT_EQ("l"sv, context.raw());
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return true;
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}
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bool EndArray(Context const& context) override
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{
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BasicHandler::EndArray(context);
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EXPECT_EQ("e"sv, context.raw());
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return true;
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}
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bool StartDict(Context const& context) override
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{
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BasicHandler::StartDict(context);
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EXPECT_EQ("d"sv, context.raw());
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return true;
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}
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bool EndDict(Context const& context) override
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{
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BasicHandler::EndDict(context);
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EXPECT_EQ("e"sv, context.raw());
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return true;
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}
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bool Int64(int64_t value, Context const& context) override
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{
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EXPECT_EQ(fmt::format(FMT_STRING("i{:d}e"), value), context.raw());
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return true;
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}
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bool String(std::string_view value, Context const& context) override
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{
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EXPECT_EQ(fmt::format(FMT_STRING("{:d}:{:s}"), std::size(value), value), context.raw());
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return true;
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}
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};
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auto stack = transmission::benc::ParserStack<MaxBencDepth>{};
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auto handler = ContextHandler{};
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auto error = tr_error{};
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transmission::benc::parse(Benc, stack, handler, nullptr, &error);
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EXPECT_FALSE(error);
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}
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