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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "TestCommon.h"
#include "gtest/gtest.h"
#include "Capsule.h"
#include "CapsuleEncoder.h"
#include "CapsuleParser.h"
using namespace mozilla;
using namespace mozilla::net;
TEST(TestCapsule, UnknownCapsule)
{
nsTArray<uint8_t> data({0x1, 0x2});
nsTArray<uint8_t> cloned(data.Clone());
Capsule capsule = Capsule::Unknown(0x1234, std::move(cloned));
CapsuleEncoder encoder;
encoder.EncodeCapsule(capsule);
auto buffer = encoder.GetBuffer();
RefPtr<CapsuleParserListener> listener = new CapsuleParserListener();
UniquePtr<CapsuleParser> parser = MakeUnique<CapsuleParser>(listener);
bool res = parser->ProcessCapsuleData(buffer.Elements(), buffer.Length());
ASSERT_TRUE(res);
Maybe<nsresult> error = listener->GetErrorResult();
ASSERT_TRUE(error.isNothing());
nsTArray<Capsule> parsed = listener->GetParsedCapsules();
ASSERT_EQ(parsed.Length(), 1u);
UnknownCapsule& unknown = parsed[0].GetUnknownCapsule();
ASSERT_EQ(unknown.mData, data);
ASSERT_TRUE(parser->IsBufferEmpty());
}
TEST(TestCapsule, CloseWebTransportSessionCapsule)
{
nsCString reason("test");
Capsule capsule = Capsule::CloseWebTransportSession(42, reason);
CapsuleEncoder encoder;
encoder.EncodeCapsule(capsule);
auto buffer = encoder.GetBuffer();
RefPtr<CapsuleParserListener> listener = new CapsuleParserListener();
UniquePtr<CapsuleParser> parser = MakeUnique<CapsuleParser>(listener);
bool res = parser->ProcessCapsuleData(buffer.Elements(), buffer.Length());
ASSERT_TRUE(res);
Maybe<nsresult> error = listener->GetErrorResult();
ASSERT_TRUE(error.isNothing());
nsTArray<Capsule> parsed = listener->GetParsedCapsules();
ASSERT_EQ(parsed.Length(), 1u);
CloseWebTransportSessionCapsule& parsedCapsule =
parsed[0].GetCloseWebTransportSessionCapsule();
ASSERT_EQ(parsedCapsule.mStatus, 42u);
ASSERT_EQ(parsedCapsule.mReason, reason);
ASSERT_TRUE(parser->IsBufferEmpty());
}
TEST(TestCapsule, CloseWebTransportSessionCapsuleWithReasonTooLong)
{
nsCString reason;
for (uint32_t i = 0; i < 1025; i++) {
reason.AppendLiteral("1");
}
Capsule capsule = Capsule::CloseWebTransportSession(42, reason);
CapsuleEncoder encoder;
encoder.EncodeCapsule(capsule);
auto buffer = encoder.GetBuffer();
RefPtr<CapsuleParserListener> listener = new CapsuleParserListener();
UniquePtr<CapsuleParser> parser = MakeUnique<CapsuleParser>(listener);
bool res = parser->ProcessCapsuleData(buffer.Elements(), buffer.Length());
ASSERT_FALSE(res);
Maybe<nsresult> error = listener->GetErrorResult();
ASSERT_TRUE(error.isSome());
ASSERT_EQ(*error, NS_ERROR_UNEXPECTED);
nsTArray<Capsule> parsed = listener->GetParsedCapsules();
ASSERT_EQ(parsed.Length(), 0u);
ASSERT_TRUE(parser->IsBufferEmpty());
}
TEST(TestCapsule, MultipleCapsules)
{
nsCString reason("test");
Capsule capsule1 = Capsule::CloseWebTransportSession(42, reason);
nsTArray<uint8_t> data({0x1, 0x2, 0x3, 0x4});
Capsule capsule2 = Capsule::WebTransportStreamData(0, true, std::move(data));
CapsuleEncoder encoder;
encoder.EncodeCapsule(capsule1);
encoder.EncodeCapsule(capsule2);
auto buffer = encoder.GetBuffer();
RefPtr<CapsuleParserListener> listener = new CapsuleParserListener();
UniquePtr<CapsuleParser> parser = MakeUnique<CapsuleParser>(listener);
bool res = parser->ProcessCapsuleData(buffer.Elements(), buffer.Length());
ASSERT_TRUE(res);
Maybe<nsresult> error = listener->GetErrorResult();
ASSERT_TRUE(error.isNothing());
nsTArray<Capsule> parsed = listener->GetParsedCapsules();
ASSERT_EQ(parsed.Length(), 2u);
CloseWebTransportSessionCapsule& parsedCapsule =
parsed[0].GetCloseWebTransportSessionCapsule();
ASSERT_EQ(parsedCapsule.mStatus, 42u);
ASSERT_EQ(parsedCapsule.mReason, reason);
WebTransportStreamDataCapsule& streamData =
parsed[1].GetWebTransportStreamDataCapsule();
ASSERT_EQ(streamData.mID, 0u);
ASSERT_EQ(streamData.mData.Length(), 4u);
ASSERT_TRUE(parser->IsBufferEmpty());
}
TEST(TestCapsule, WouldBlock)
{
nsCString reason("test");
Capsule capsule1 = Capsule::CloseWebTransportSession(42, reason);
nsTArray<uint8_t> data;
for (uint32_t i = 0; i < 4096; i++) {
data.AppendElement(0x2);
}
Capsule capsule2 = Capsule::WebTransportStreamData(0, true, std::move(data));
CapsuleEncoder encoder;
encoder.EncodeCapsule(capsule1);
encoder.EncodeCapsule(capsule2);
auto buffer = encoder.GetBuffer();
const uint8_t* buf1 = buffer.Elements();
uint32_t firstHalf = buffer.Length() / 2;
const uint8_t* buf2 = buffer.Elements() + firstHalf;
uint32_t secondHalf = buffer.Length() - firstHalf;
RefPtr<CapsuleParserListener> listener = new CapsuleParserListener();
UniquePtr<CapsuleParser> parser = MakeUnique<CapsuleParser>(listener);
bool res = parser->ProcessCapsuleData(buf1, firstHalf);
ASSERT_TRUE(res);
Maybe<nsresult> error = listener->GetErrorResult();
ASSERT_TRUE(error.isNothing());
nsTArray<Capsule> parsed = listener->GetParsedCapsules();
ASSERT_EQ(parsed.Length(), 1u);
CloseWebTransportSessionCapsule& parsedCapsule =
parsed[0].GetCloseWebTransportSessionCapsule();
ASSERT_EQ(parsedCapsule.mStatus, 42u);
ASSERT_EQ(parsedCapsule.mReason, reason);
ASSERT_FALSE(parser->IsBufferEmpty());
res = parser->ProcessCapsuleData(buf2, secondHalf);
parsed = listener->GetParsedCapsules();
ASSERT_EQ(parsed.Length(), 1u);
WebTransportStreamDataCapsule& streamData =
parsed[0].GetWebTransportStreamDataCapsule();
ASSERT_EQ(streamData.mID, 0u);
ASSERT_EQ(streamData.mData.Length(), 4096u);
ASSERT_TRUE(parser->IsBufferEmpty());
}
TEST(TestCapsule, WouldBlock1)
{
nsTArray<uint8_t> data;
for (uint32_t i = 0; i < 4096; i++) {
data.AppendElement(0x2);
}
Capsule capsule1 = Capsule::WebTransportStreamData(0, true, std::move(data));
nsCString reason("test");
Capsule capsule2 = Capsule::CloseWebTransportSession(42, reason);
CapsuleEncoder encoder;
encoder.EncodeCapsule(capsule1);
encoder.EncodeCapsule(capsule2);
auto buffer = encoder.GetBuffer();
const uint8_t* buf1 = buffer.Elements();
uint32_t firstHalf = buffer.Length() / 2;
const uint8_t* buf2 = buffer.Elements() + firstHalf;
uint32_t secondHalf = buffer.Length() - firstHalf;
RefPtr<CapsuleParserListener> listener = new CapsuleParserListener();
UniquePtr<CapsuleParser> parser = MakeUnique<CapsuleParser>(listener);
bool res = parser->ProcessCapsuleData(buf1, firstHalf);
ASSERT_TRUE(res);
Maybe<nsresult> error = listener->GetErrorResult();
ASSERT_TRUE(error.isNothing());
nsTArray<Capsule> parsed = listener->GetParsedCapsules();
ASSERT_EQ(parsed.Length(), 0u);
ASSERT_FALSE(parser->IsBufferEmpty());
res = parser->ProcessCapsuleData(buf2, secondHalf);
parsed = listener->GetParsedCapsules();
ASSERT_EQ(parsed.Length(), 2u);
error = listener->GetErrorResult();
ASSERT_TRUE(error.isNothing());
WebTransportStreamDataCapsule& streamData =
parsed[0].GetWebTransportStreamDataCapsule();
ASSERT_EQ(streamData.mID, 0u);
ASSERT_EQ(streamData.mData.Length(), 4096u);
CloseWebTransportSessionCapsule& parsedCapsule =
parsed[1].GetCloseWebTransportSessionCapsule();
ASSERT_EQ(parsedCapsule.mStatus, 42u);
ASSERT_EQ(parsedCapsule.mReason, reason);
ASSERT_TRUE(parser->IsBufferEmpty());
}
TEST(TestCapsule, WouldBlock2)
{
nsTArray<uint8_t> data;
for (uint32_t i = 0; i < 4096; i++) {
data.AppendElement(0x2);
}
Capsule capsule1 = Capsule::WebTransportStreamData(0, true, std::move(data));
nsCString reason("test");
Capsule capsule2 = Capsule::CloseWebTransportSession(42, reason);
CapsuleEncoder encoder;
encoder.EncodeCapsule(capsule1);
encoder.EncodeCapsule(capsule2);
auto buffer = encoder.GetBuffer();
uint32_t totalLength = buffer.Length();
// Split the buffer into three parts.
uint32_t part1Length = totalLength / 3;
uint32_t part2Length = totalLength / 3;
uint32_t part3Length = totalLength - part1Length - part2Length;
const uint8_t* buf1 = buffer.Elements();
const uint8_t* buf2 = buffer.Elements() + part1Length;
const uint8_t* buf3 = buffer.Elements() + part1Length + part2Length;
RefPtr<CapsuleParserListener> listener = new CapsuleParserListener();
UniquePtr<CapsuleParser> parser = MakeUnique<CapsuleParser>(listener);
// Process first part.
bool res = parser->ProcessCapsuleData(buf1, part1Length);
ASSERT_TRUE(res);
Maybe<nsresult> error = listener->GetErrorResult();
ASSERT_TRUE(error.isNothing());
nsTArray<Capsule> parsed = listener->GetParsedCapsules();
// At this stage, we might not have a complete capsule yet.
ASSERT_EQ(parsed.Length(), 0u);
// The parser's internal buffer should not be empty.
ASSERT_FALSE(parser->IsBufferEmpty());
// Process second part.
res = parser->ProcessCapsuleData(buf2, part2Length);
ASSERT_TRUE(res);
error = listener->GetErrorResult();
ASSERT_TRUE(error.isNothing());
// Still, we might be waiting for more data to form a complete capsule.
parsed = listener->GetParsedCapsules();
// It's possible that no complete capsule is parsed yet, depending on how the
// data splits. We won't assert parsed.Length() here since it may vary.
// Process third part.
res = parser->ProcessCapsuleData(buf3, part3Length);
ASSERT_TRUE(res);
parsed = listener->GetParsedCapsules();
// At the end, we should have parsed both capsules.
ASSERT_EQ(parsed.Length(), 2u);
error = listener->GetErrorResult();
ASSERT_TRUE(error.isNothing());
WebTransportStreamDataCapsule& streamData =
parsed[0].GetWebTransportStreamDataCapsule();
ASSERT_EQ(streamData.mID, 0u);
ASSERT_EQ(streamData.mData.Length(), 4096u);
CloseWebTransportSessionCapsule& parsedCapsule =
parsed[1].GetCloseWebTransportSessionCapsule();
ASSERT_EQ(parsedCapsule.mStatus, 42u);
ASSERT_EQ(parsedCapsule.mReason, reason);
ASSERT_TRUE(parser->IsBufferEmpty());
}
TEST(TestCapsule, WebTransportMaxDataCapsule)
{
Capsule capsule = Capsule::WebTransportMaxData(16384);
CapsuleEncoder encoder;
encoder.EncodeCapsule(capsule);
auto buffer = encoder.GetBuffer();
Capsule::LogBuffer(buffer.Elements(), buffer.Length());
RefPtr<CapsuleParserListener> listener = new CapsuleParserListener();
UniquePtr<CapsuleParser> parser = MakeUnique<CapsuleParser>(listener);
bool res = parser->ProcessCapsuleData(buffer.Elements(), buffer.Length());
ASSERT_TRUE(res);
Maybe<nsresult> error = listener->GetErrorResult();
ASSERT_TRUE(error.isNothing());
nsTArray<Capsule> parsed = listener->GetParsedCapsules();
ASSERT_EQ(parsed.Length(), 1u);
WebTransportMaxDataCapsule& parsedCapsule =
parsed[0].GetWebTransportMaxDataCapsule();
ASSERT_EQ(parsedCapsule.mMaxDataSize, 16384u);
ASSERT_TRUE(parser->IsBufferEmpty());
}
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