net/spdy/spdy_frame_builder_test.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "net/spdy/spdy_frame_builder.h"
   6
   7 #include "net/spdy/spdy_framer.h"
   8 #include "net/spdy/spdy_protocol.h"
   9 #include "testing/platform_test.h"
  10
  11 namespace net {
  12
  13 class SpdyFrameBuilderTest : public ::testing::TestWithParam<SpdyMajorVersion> {
  14  protected:
  15   void SetUp() override { spdy_version_ = GetParam(); }
  16
  17   // Major version of SPDY protocol to be used.
  18   SpdyMajorVersion spdy_version_;
  19 };
  20
  21 // All tests are run with two different SPDY versions: SPDY/2 and SPDY/3.
  22 INSTANTIATE_TEST_CASE_P(SpdyFrameBuilderTests,
  23                         SpdyFrameBuilderTest,
  24                         ::testing::Values(SPDY2, SPDY3, SPDY4));
  25
  26 TEST_P(SpdyFrameBuilderTest, GetWritableBuffer) {
  27   const size_t builder_size = 10;
  28   SpdyFrameBuilder builder(builder_size, spdy_version_);
  29   char* writable_buffer = builder.GetWritableBuffer(builder_size);
  30   memset(writable_buffer, ~1, builder_size);
  31   EXPECT_TRUE(builder.Seek(builder_size));
  32   scoped_ptr<SpdyFrame> frame(builder.take());
  33   char expected[builder_size];
  34   memset(expected, ~1, builder_size);
  35   EXPECT_EQ(base::StringPiece(expected, builder_size),
  36             base::StringPiece(frame->data(), builder_size));
  37 }
  38
  39 TEST_P(SpdyFrameBuilderTest, RewriteLength) {
  40   // Create an empty SETTINGS frame both via framer and manually via builder.
  41   // The one created via builder is initially given the incorrect length, but
  42   // then is corrected via RewriteLength().
  43   SpdyFramer framer(spdy_version_);
  44   SpdySettingsIR settings_ir;
  45   scoped_ptr<SpdyFrame> expected(framer.SerializeSettings(settings_ir));
  46   SpdyFrameBuilder builder(expected->size() + 1, spdy_version_);
  47   if (spdy_version_ <= SPDY3) {
  48     builder.WriteControlFrameHeader(framer, SETTINGS, 0);
  49     builder.WriteUInt32(0);  // Write the number of settings.
  50   } else {
  51     builder.BeginNewFrame(framer, SETTINGS, 0, 0);
  52   }
  53   EXPECT_TRUE(builder.GetWritableBuffer(1) != NULL);
  54   builder.RewriteLength(framer);
  55   scoped_ptr<SpdyFrame> built(builder.take());
  56   EXPECT_EQ(base::StringPiece(expected->data(), expected->size()),
  57             base::StringPiece(built->data(), expected->size()));
  58 }
  59
  60 TEST_P(SpdyFrameBuilderTest, OverwriteFlags) {
  61   // Create a HEADERS frame both via framer and manually via builder with
  62   // different flags set, then make them match using OverwriteFlags().
  63   SpdyFramer framer(spdy_version_);
  64   if (spdy_version_ <= SPDY3) {
  65     return;
  66   }
  67   SpdyHeadersIR headers_ir(1);
  68   scoped_ptr<SpdyFrame> expected(framer.SerializeHeaders(headers_ir));
  69   SpdyFrameBuilder builder(expected->size(), spdy_version_);
  70   builder.BeginNewFrame(framer, HEADERS, 0, 1);
  71   builder.OverwriteFlags(framer, HEADERS_FLAG_END_HEADERS);
  72   scoped_ptr<SpdyFrame> built(builder.take());
  73   EXPECT_EQ(base::StringPiece(expected->data(), expected->size()),
  74             base::StringPiece(built->data(), built->size()));
  75 }
  76
  77 }  // namespace net