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| 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_buffer.h" | |
| 6 | |
| 7 #include <cstddef> | |
| 8 #include <cstring> | |
| 9 #include <string> | |
| 10 | |
| 11 #include "base/basictypes.h" | |
| 12 #include "base/bind.h" | |
| 13 #include "base/memory/ref_counted.h" | |
| 14 #include "base/memory/scoped_ptr.h" | |
| 15 #include "net/base/io_buffer.h" | |
| 16 #include "net/spdy/spdy_protocol.h" | |
| 17 #include "testing/gtest/include/gtest/gtest.h" | |
| 18 | |
| 19 namespace net { | |
| 20 | |
| 21 namespace { | |
| 22 | |
| 23 const char kData[] = "hello!\0hi."; | |
| 24 const size_t kDataSize = arraysize(kData); | |
| 25 | |
| 26 class SpdyBufferTest : public ::testing::Test {}; | |
| 27 | |
| 28 // Make a string from the data remaining in |buffer|. | |
| 29 std::string BufferToString(const SpdyBuffer& buffer) { | |
| 30 return std::string(buffer.GetRemainingData(), buffer.GetRemainingSize()); | |
| 31 } | |
| 32 | |
| 33 // Construct a SpdyBuffer from a SpdyFrame and make sure its data | |
| 34 // points to the frame's underlying data. | |
| 35 TEST_F(SpdyBufferTest, FrameConstructor) { | |
| 36 SpdyBuffer buffer( | |
| 37 scoped_ptr<SpdyFrame>( | |
| 38 new SpdyFrame(const_cast<char*>(kData), kDataSize, | |
| 39 false /* owns_buffer */))); | |
| 40 | |
| 41 EXPECT_EQ(kData, buffer.GetRemainingData()); | |
| 42 EXPECT_EQ(kDataSize, buffer.GetRemainingSize()); | |
| 43 } | |
| 44 | |
| 45 // Construct a SpdyBuffer from a const char*/size_t pair and make sure | |
| 46 // it makes a copy of the data. | |
| 47 TEST_F(SpdyBufferTest, DataConstructor) { | |
| 48 std::string data(kData, kDataSize); | |
| 49 SpdyBuffer buffer(data.data(), data.size()); | |
| 50 // This mutation shouldn't affect |buffer|'s data. | |
| 51 data[0] = 'H'; | |
| 52 | |
| 53 EXPECT_NE(kData, buffer.GetRemainingData()); | |
| 54 EXPECT_EQ(kDataSize, buffer.GetRemainingSize()); | |
| 55 EXPECT_EQ(std::string(kData, kDataSize), BufferToString(buffer)); | |
| 56 } | |
| 57 | |
| 58 void IncrementBy(size_t* x, | |
| 59 SpdyBuffer::ConsumeSource expected_consume_source, | |
| 60 size_t delta, | |
| 61 SpdyBuffer::ConsumeSource consume_source) { | |
| 62 EXPECT_EQ(expected_consume_source, consume_source); | |
| 63 *x += delta; | |
| 64 } | |
| 65 | |
| 66 // Construct a SpdyBuffer and call Consume() on it, which should | |
| 67 // update the remaining data pointer and size appropriately, as well | |
| 68 // as calling the consume callbacks. | |
| 69 TEST_F(SpdyBufferTest, Consume) { | |
| 70 SpdyBuffer buffer(kData, kDataSize); | |
| 71 | |
| 72 size_t x1 = 0; | |
| 73 size_t x2 = 0; | |
| 74 buffer.AddConsumeCallback( | |
| 75 base::Bind(&IncrementBy, &x1, SpdyBuffer::CONSUME)); | |
| 76 buffer.AddConsumeCallback( | |
| 77 base::Bind(&IncrementBy, &x2, SpdyBuffer::CONSUME)); | |
| 78 | |
| 79 EXPECT_EQ(std::string(kData, kDataSize), BufferToString(buffer)); | |
| 80 | |
| 81 buffer.Consume(5); | |
| 82 EXPECT_EQ(std::string(kData + 5, kDataSize - 5), BufferToString(buffer)); | |
| 83 EXPECT_EQ(5u, x1); | |
| 84 EXPECT_EQ(5u, x2); | |
| 85 | |
| 86 buffer.Consume(kDataSize - 5); | |
| 87 EXPECT_EQ(0u, buffer.GetRemainingSize()); | |
| 88 EXPECT_EQ(kDataSize, x1); | |
| 89 EXPECT_EQ(kDataSize, x2); | |
| 90 } | |
| 91 | |
| 92 // Construct a SpdyBuffer and attach a ConsumeCallback to it. The | |
| 93 // callback should be called when the SpdyBuffer is destroyed. | |
| 94 TEST_F(SpdyBufferTest, ConsumeOnDestruction) { | |
| 95 size_t x = 0; | |
| 96 | |
| 97 { | |
| 98 SpdyBuffer buffer(kData, kDataSize); | |
| 99 buffer.AddConsumeCallback( | |
| 100 base::Bind(&IncrementBy, &x, SpdyBuffer::DISCARD)); | |
| 101 } | |
| 102 | |
| 103 EXPECT_EQ(kDataSize, x); | |
| 104 } | |
| 105 | |
| 106 // Make sure the IOBuffer returned by GetIOBufferForRemainingData() | |
| 107 // points to the buffer's remaining data and isn't updated by | |
| 108 // Consume(). | |
| 109 TEST_F(SpdyBufferTest, GetIOBufferForRemainingData) { | |
| 110 SpdyBuffer buffer(kData, kDataSize); | |
| 111 | |
| 112 buffer.Consume(5); | |
| 113 scoped_refptr<IOBuffer> io_buffer = buffer.GetIOBufferForRemainingData(); | |
| 114 size_t io_buffer_size = buffer.GetRemainingSize(); | |
| 115 const std::string expectedData(kData + 5, kDataSize - 5); | |
| 116 EXPECT_EQ(expectedData, std::string(io_buffer->data(), io_buffer_size)); | |
| 117 | |
| 118 buffer.Consume(kDataSize - 5); | |
| 119 EXPECT_EQ(expectedData, std::string(io_buffer->data(), io_buffer_size)); | |
| 120 } | |
| 121 | |
| 122 // Make sure the IOBuffer returned by GetIOBufferForRemainingData() | |
| 123 // outlives the buffer itself. | |
| 124 TEST_F(SpdyBufferTest, IOBufferForRemainingDataOutlivesBuffer) { | |
| 125 scoped_ptr<SpdyBuffer> buffer(new SpdyBuffer(kData, kDataSize)); | |
| 126 | |
| 127 scoped_refptr<IOBuffer> io_buffer = buffer->GetIOBufferForRemainingData(); | |
| 128 buffer.reset(); | |
| 129 | |
| 130 // This will cause a use-after-free error if |io_buffer| doesn't | |
| 131 // outlive |buffer|. | |
| 132 std::memcpy(io_buffer->data(), kData, kDataSize); | |
| 133 } | |
| 134 | |
| 135 } // namespace | |
| 136 | |
| 137 } // namespace net | |
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