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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "flip_protocol.h"
#include "base/scoped_ptr.h"
#include "flip_bitmasks.h" // shared with server.
#include "flip_framer.h"
#ifdef _WIN32
#include "testing/platform_test.h"
#else
#include "testing/base/public/gunit.h"
#endif
using flip::FlipDataFrame;
using flip::FlipFrame;
using flip::FlipControlFrame;
using flip::FlipSynStreamControlFrame;
using flip::FlipSynReplyControlFrame;
using flip::FlipFinStreamControlFrame;
using flip::FlipFramer;
using flip::FlipHeaderBlock;
using flip::FlagsAndLength;
using flip::kLengthMask;
using flip::kStreamIdMask;
using flip::kFlipProtocolVersion;
using flip::SYN_STREAM;
using flip::SYN_REPLY;
using flip::FIN_STREAM;
using flip::CONTROL_FLAG_FIN;
using flip::CONTROL_FLAG_NONE;
namespace {
// Test our protocol constants
TEST(FlipProtocolTest, ProtocolConstants) {
EXPECT_EQ(8u, FlipFrame::size());
EXPECT_EQ(8u, FlipDataFrame::size());
EXPECT_EQ(12u, FlipControlFrame::size());
EXPECT_EQ(14u, FlipSynStreamControlFrame::size());
EXPECT_EQ(14u, FlipSynReplyControlFrame::size());
EXPECT_EQ(16u, FlipFinStreamControlFrame::size());
EXPECT_EQ(4u, sizeof(FlagsAndLength));
EXPECT_EQ(1, SYN_STREAM);
EXPECT_EQ(2, SYN_REPLY);
EXPECT_EQ(3, FIN_STREAM);
}
// Test some of the protocol helper functions
TEST(FlipProtocolTest, FrameStructs) {
FlipFrame frame(FlipFrame::size());
frame.set_length(12345);
frame.set_flags(10);
EXPECT_EQ(12345u, frame.length());
EXPECT_EQ(10u, frame.flags());
EXPECT_EQ(false, frame.is_control_frame());
frame.set_length(0);
frame.set_flags(10);
EXPECT_EQ(0u, frame.length());
EXPECT_EQ(10u, frame.flags());
EXPECT_EQ(false, frame.is_control_frame());
}
TEST(FlipProtocolTest, DataFrameStructs) {
FlipDataFrame data_frame;
data_frame.set_stream_id(12345);
EXPECT_EQ(12345u, data_frame.stream_id());
}
TEST(FlipProtocolTest, ControlFrameStructs) {
FlipFramer framer;
FlipHeaderBlock headers;
scoped_ptr<FlipSynStreamControlFrame> syn_frame(
framer.CreateSynStream(123, 2, CONTROL_FLAG_FIN, false, &headers));
EXPECT_EQ(kFlipProtocolVersion, syn_frame->version());
EXPECT_EQ(true, syn_frame->is_control_frame());
EXPECT_EQ(SYN_STREAM, syn_frame->type());
EXPECT_EQ(123u, syn_frame->stream_id());
EXPECT_EQ(2u, syn_frame->priority());
EXPECT_EQ(2, syn_frame->header_block_len());
EXPECT_EQ(1u, syn_frame->flags());
scoped_ptr<FlipSynReplyControlFrame> syn_reply(
framer.CreateSynReply(123, CONTROL_FLAG_NONE, false, &headers));
EXPECT_EQ(kFlipProtocolVersion, syn_reply->version());
EXPECT_EQ(true, syn_reply->is_control_frame());
EXPECT_EQ(SYN_REPLY, syn_reply->type());
EXPECT_EQ(123u, syn_reply->stream_id());
EXPECT_EQ(2, syn_reply->header_block_len());
EXPECT_EQ(0, syn_reply->flags());
scoped_ptr<FlipFinStreamControlFrame> fin_frame(
framer.CreateFinStream(123, 444));
EXPECT_EQ(kFlipProtocolVersion, fin_frame->version());
EXPECT_EQ(true, fin_frame->is_control_frame());
EXPECT_EQ(FIN_STREAM, fin_frame->type());
EXPECT_EQ(123u, fin_frame->stream_id());
EXPECT_EQ(444u, fin_frame->status());
fin_frame->set_status(555);
EXPECT_EQ(555u, fin_frame->status());
EXPECT_EQ(0, fin_frame->flags());
}
TEST(FlipProtocolTest, TestDataFrame) {
FlipDataFrame frame;
// Set the stream ID to various values.
frame.set_stream_id(0);
EXPECT_EQ(0, frame.stream_id());
EXPECT_FALSE(frame.is_control_frame());
frame.set_stream_id(~0 & kStreamIdMask);
EXPECT_EQ(~0 & kStreamIdMask, frame.stream_id());
EXPECT_FALSE(frame.is_control_frame());
// Set length to various values. Make sure that when you set_length(x),
// length() == x. Also make sure the flags are unaltered.
memset(frame.data(), '1', FlipDataFrame::size());
int8 flags = frame.flags();
frame.set_length(0);
EXPECT_EQ(0, frame.length());
EXPECT_EQ(flags, frame.flags());
frame.set_length(kLengthMask);
EXPECT_EQ(kLengthMask, frame.length());
EXPECT_EQ(flags, frame.flags());
frame.set_length(5);
EXPECT_EQ(5, frame.length());
EXPECT_EQ(flags, frame.flags());
// Set flags to various values. Make sure that when you set_flags(x),
// flags() == x. Also make sure the length is unaltered.
memset(frame.data(), '1', FlipDataFrame::size());
uint32 length = frame.length();
frame.set_flags(0);
EXPECT_EQ(0, frame.flags());
EXPECT_EQ(length, frame.length());
int8 all_flags = ~0;
frame.set_flags(all_flags);
flags = frame.flags();
EXPECT_EQ(all_flags, flags);
EXPECT_EQ(length, frame.length());
frame.set_flags(5);
EXPECT_EQ(5, frame.flags());
EXPECT_EQ(length, frame.length());
}
// Make sure that overflows both die in debug mode, and do not cause problems
// in opt mode. Note: Chrome doesn't die on DCHECK failures, so the
// EXPECT_DEBUG_DEATH doesn't work.
TEST(FlipProtocolDeathTest, TestDataFrame) {
FlipDataFrame frame;
frame.set_stream_id(0);
#ifndef WIN32
EXPECT_DEBUG_DEATH(frame.set_stream_id(~0), "");
#endif
EXPECT_FALSE(frame.is_control_frame());
frame.set_flags(0);
#ifndef WIN32
EXPECT_DEBUG_DEATH(frame.set_length(~0), "");
#endif
EXPECT_EQ(0, frame.flags());
}
TEST(FlipProtocolDeathTest, TestFlipControlFrame) {
FlipControlFrame frame(FlipControlFrame::size());
memset(frame.data(), '1', FlipControlFrame::size());
// Set the stream ID to various values.
frame.set_stream_id(0);
EXPECT_EQ(0, frame.stream_id());
EXPECT_FALSE(frame.is_control_frame());
frame.set_stream_id(~0 & kStreamIdMask);
EXPECT_EQ(~0 & kStreamIdMask, frame.stream_id());
EXPECT_FALSE(frame.is_control_frame());
}
} // namespace
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