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// Copyright (c) 2013 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 "net/spdy/spdy_frame_builder.h"
#include "net/spdy/spdy_framer.h"
#include "net/spdy/spdy_protocol.h"
#include "testing/platform_test.h"
namespace net {
class SpdyFrameBuilderTest : public ::testing::TestWithParam<SpdyMajorVersion> {
protected:
void SetUp() override { spdy_version_ = GetParam(); }
// Major version of SPDY protocol to be used.
SpdyMajorVersion spdy_version_;
};
// All tests are run with three different SPDY versions: SPDY/2, SPDY/3 and
// HTTP/2.
INSTANTIATE_TEST_CASE_P(SpdyFrameBuilderTests,
SpdyFrameBuilderTest,
::testing::Values(SPDY2, SPDY3, HTTP2));
TEST_P(SpdyFrameBuilderTest, GetWritableBuffer) {
const size_t builder_size = 10;
SpdyFrameBuilder builder(builder_size, spdy_version_);
char* writable_buffer = builder.GetWritableBuffer(builder_size);
memset(writable_buffer, ~1, builder_size);
EXPECT_TRUE(builder.Seek(builder_size));
scoped_ptr<SpdyFrame> frame(builder.take());
char expected[builder_size];
memset(expected, ~1, builder_size);
EXPECT_EQ(base::StringPiece(expected, builder_size),
base::StringPiece(frame->data(), builder_size));
}
TEST_P(SpdyFrameBuilderTest, RewriteLength) {
// Create an empty SETTINGS frame both via framer and manually via builder.
// The one created via builder is initially given the incorrect length, but
// then is corrected via RewriteLength().
SpdyFramer framer(spdy_version_);
SpdySettingsIR settings_ir;
scoped_ptr<SpdyFrame> expected(framer.SerializeSettings(settings_ir));
SpdyFrameBuilder builder(expected->size() + 1, spdy_version_);
if (spdy_version_ <= SPDY3) {
builder.WriteControlFrameHeader(framer, SETTINGS, 0);
builder.WriteUInt32(0); // Write the number of settings.
} else {
builder.BeginNewFrame(framer, SETTINGS, 0, 0);
}
EXPECT_TRUE(builder.GetWritableBuffer(1) != NULL);
builder.RewriteLength(framer);
scoped_ptr<SpdyFrame> built(builder.take());
EXPECT_EQ(base::StringPiece(expected->data(), expected->size()),
base::StringPiece(built->data(), expected->size()));
}
TEST_P(SpdyFrameBuilderTest, OverwriteFlags) {
// Create a HEADERS frame both via framer and manually via builder with
// different flags set, then make them match using OverwriteFlags().
SpdyFramer framer(spdy_version_);
if (spdy_version_ <= SPDY3) {
return;
}
SpdyHeadersIR headers_ir(1);
scoped_ptr<SpdyFrame> expected(framer.SerializeHeaders(headers_ir));
SpdyFrameBuilder builder(expected->size(), spdy_version_);
builder.BeginNewFrame(framer, HEADERS, 0, 1);
builder.OverwriteFlags(framer, HEADERS_FLAG_END_HEADERS);
scoped_ptr<SpdyFrame> built(builder.take());
EXPECT_EQ(base::StringPiece(expected->data(), expected->size()),
base::StringPiece(built->data(), built->size()));
}
} // namespace net
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