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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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