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Issue 243153003: HPACK optimal Huffman code instrumentation and UMA collection. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 8 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "net/spdy/hpack_encoder.h" 5 #include "net/spdy/hpack_encoder.h"
6 6
7 #include <map> 7 #include <map>
8 #include <string> 8 #include <string>
9 9
10 #include "testing/gmock/include/gmock/gmock.h" 10 #include "testing/gmock/include/gmock/gmock.h"
11 #include "testing/gtest/include/gtest/gtest.h" 11 #include "testing/gtest/include/gtest/gtest.h"
12 12
13 namespace net { 13 namespace net {
14 14
15 using base::StringPiece; 15 using base::StringPiece;
16 using std::string; 16 using std::string;
17 using testing::ElementsAre; 17 using testing::ElementsAre;
18 18
19 namespace test { 19 namespace test {
20 20
21 class HpackEncoderPeer { 21 class HpackEncoderPeer {
22 public: 22 public:
23 explicit HpackEncoderPeer(HpackEncoder* encoder) 23 explicit HpackEncoderPeer(HpackEncoder* encoder)
24 : encoder_(encoder) {} 24 : encoder_(encoder) {}
25 25
26 void UpdateCharacterCounts(StringPiece str) {
27 encoder_->UpdateCharacterCounts(str);
28 }
26 void set_max_string_literal_size(uint32 size) { 29 void set_max_string_literal_size(uint32 size) {
27 encoder_->max_string_literal_size_ = size; 30 encoder_->max_string_literal_size_ = size;
28 } 31 }
29 static void CookieToCrumbs(StringPiece cookie, 32 static void CookieToCrumbs(StringPiece cookie,
30 std::vector<StringPiece>* out) { 33 std::vector<StringPiece>* out) {
31 HpackEncoder::CookieToCrumbs(cookie, out); 34 HpackEncoder::CookieToCrumbs(cookie, out);
32 } 35 }
33 private: 36 private:
34 HpackEncoder* encoder_; 37 HpackEncoder* encoder_;
35 }; 38 };
(...skipping 69 matching lines...) Expand 10 before | Expand all | Expand 10 after
105 std::map<string, string> header_set; 108 std::map<string, string> header_set;
106 header_set["name1"] = "too-long value"; 109 header_set["name1"] = "too-long value";
107 header_set["name2"] = "value2"; 110 header_set["name2"] = "value2";
108 111
109 // TODO(akalin): Verify that the encoder did not attempt to encode 112 // TODO(akalin): Verify that the encoder did not attempt to encode
110 // the second header field. 113 // the second header field.
111 string encoded_header_set; 114 string encoded_header_set;
112 EXPECT_FALSE(encoder.EncodeHeaderSet(header_set, &encoded_header_set)); 115 EXPECT_FALSE(encoder.EncodeHeaderSet(header_set, &encoded_header_set));
113 } 116 }
114 117
118 TEST(HpackEncoderTest, UpdateCharacterCounts) {
119 HpackEncoder encoder;
120 test::HpackEncoderPeer peer(&encoder);
121
122 std::vector<size_t> counts(256, 0);
123 size_t total_counts = 0;
124 encoder.SetCharCountsStorage(&counts, &total_counts);
125
126 char kTestString[] = "foo\0\1\xff""boo";
127 peer.UpdateCharacterCounts(
128 StringPiece(kTestString, arraysize(kTestString) - 1));
129
130 std::vector<size_t> expect(256, 0);
131 expect[static_cast<uint8>('f')] = 1;
132 expect[static_cast<uint8>('o')] = 4;
133 expect[static_cast<uint8>('\0')] = 1;
134 expect[static_cast<uint8>('\1')] = 1;
135 expect[static_cast<uint8>('\xff')] = 1;
136 expect[static_cast<uint8>('b')] = 1;
137
138 EXPECT_EQ(expect, counts);
139 EXPECT_EQ(9u, total_counts);
140 }
141
115 } // namespace 142 } // namespace
116 143
117 } // namespace net 144 } // namespace net
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