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   virtual void SetUp() {
  16     spdy_version_ = GetParam();
  17   }
  18
  19   // Major version of SPDY protocol to be used.
  20   SpdyMajorVersion spdy_version_;
  21 };
  22
  23 // All tests are run with two different SPDY versions: SPDY/2 and SPDY/3.
  24 INSTANTIATE_TEST_CASE_P(SpdyFrameBuilderTests,
  25                         SpdyFrameBuilderTest,
  26                         ::testing::Values(SPDY2, SPDY3, SPDY4));
  27
  28 TEST_P(SpdyFrameBuilderTest, GetWritableBuffer) {
  29   const size_t builder_size = 10;
  30   SpdyFrameBuilder builder(builder_size, spdy_version_);
  31   char* writable_buffer = builder.GetWritableBuffer(builder_size);
  32   memset(writable_buffer, ~1, builder_size);
  33   EXPECT_TRUE(builder.Seek(builder_size));
  34   scoped_ptr<SpdyFrame> frame(builder.take());
  35   char expected[builder_size];
  36   memset(expected, ~1, builder_size);
  37   EXPECT_EQ(base::StringPiece(expected, builder_size),
  38             base::StringPiece(frame->data(), builder_size));
  39 }
  40
  41 TEST_P(SpdyFrameBuilderTest, RewriteLength) {
  42   // Create an empty SETTINGS frame both via framer and manually via builder.
  43   // The one created via builder is initially given the incorrect length, but
  44   // then is corrected via RewriteLength().
  45   SpdyFramer framer(spdy_version_);
  46   SpdySettingsIR settings_ir;
  47   scoped_ptr<SpdyFrame> expected(framer.SerializeSettings(settings_ir));
  48   SpdyFrameBuilder builder(expected->size() + 1, spdy_version_);
  49   if (spdy_version_ <= SPDY3) {
  50     builder.WriteControlFrameHeader(framer, SETTINGS, 0);
  51     builder.WriteUInt32(0);  // Write the number of settings.
  52   } else {
  53     builder.BeginNewFrame(framer, SETTINGS, 0, 0);
  54   }
  55   EXPECT_TRUE(builder.GetWritableBuffer(1) != NULL);
  56   builder.RewriteLength(framer);
  57   scoped_ptr<SpdyFrame> built(builder.take());
  58   EXPECT_EQ(base::StringPiece(expected->data(), expected->size()),
  59             base::StringPiece(built->data(), expected->size()));
  60 }
  61
  62 TEST_P(SpdyFrameBuilderTest, OverwriteFlags) {
  63   // Create a HEADERS frame both via framer and manually via builder with
  64   // different flags set, then make them match using OverwriteFlags().
  65   SpdyFramer framer(spdy_version_);
  66   if (spdy_version_ <= SPDY3) {
  67     return;
  68   }
  69   SpdyHeadersIR headers_ir(1);
  70   scoped_ptr<SpdyFrame> expected(framer.SerializeHeaders(headers_ir));
  71   SpdyFrameBuilder builder(expected->size(), spdy_version_);
  72   builder.BeginNewFrame(framer, HEADERS, 0, 1);
  73   builder.OverwriteFlags(framer, HEADERS_FLAG_END_HEADERS);
  74   scoped_ptr<SpdyFrame> built(builder.take());
  75   EXPECT_EQ(base::StringPiece(expected->data(), expected->size()),
  76             base::StringPiece(built->data(), built->size()));
  77 }
  78
  79 }  // namespace net