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Bence Békybac04052022-04-07 15:44:29 -04001// Copyright (c) 2012 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 "quiche/spdy/core/spdy_protocol.h"
6
7#include <iostream>
8#include <limits>
9#include <memory>
10
11#include "quiche/common/platform/api/quiche_test.h"
12#include "quiche/common/platform/api/quiche_test_helpers.h"
13#include "quiche/spdy/core/spdy_bitmasks.h"
14#include "quiche/spdy/core/spdy_test_utils.h"
15
16namespace spdy {
17
18std::ostream& operator<<(std::ostream& os,
19 const SpdyStreamPrecedence precedence) {
20 if (precedence.is_spdy3_priority()) {
21 os << "SpdyStreamPrecedence[spdy3_priority=" << precedence.spdy3_priority()
22 << "]";
23 } else {
24 os << "SpdyStreamPrecedence[parent_id=" << precedence.parent_id()
25 << ", weight=" << precedence.weight()
26 << ", is_exclusive=" << precedence.is_exclusive() << "]";
27 }
28 return os;
29}
30
31namespace test {
32
33TEST(SpdyProtocolTest, ClampSpdy3Priority) {
34 EXPECT_QUICHE_BUG(EXPECT_EQ(7, ClampSpdy3Priority(8)), "Invalid priority: 8");
35 EXPECT_EQ(kV3LowestPriority, ClampSpdy3Priority(kV3LowestPriority));
36 EXPECT_EQ(kV3HighestPriority, ClampSpdy3Priority(kV3HighestPriority));
37}
38
39TEST(SpdyProtocolTest, ClampHttp2Weight) {
40 EXPECT_QUICHE_BUG(EXPECT_EQ(kHttp2MinStreamWeight, ClampHttp2Weight(0)),
41 "Invalid weight: 0");
42 EXPECT_QUICHE_BUG(EXPECT_EQ(kHttp2MaxStreamWeight, ClampHttp2Weight(300)),
43 "Invalid weight: 300");
44 EXPECT_EQ(kHttp2MinStreamWeight, ClampHttp2Weight(kHttp2MinStreamWeight));
45 EXPECT_EQ(kHttp2MaxStreamWeight, ClampHttp2Weight(kHttp2MaxStreamWeight));
46}
47
48TEST(SpdyProtocolTest, Spdy3PriorityToHttp2Weight) {
49 EXPECT_EQ(256, Spdy3PriorityToHttp2Weight(0));
50 EXPECT_EQ(220, Spdy3PriorityToHttp2Weight(1));
51 EXPECT_EQ(183, Spdy3PriorityToHttp2Weight(2));
52 EXPECT_EQ(147, Spdy3PriorityToHttp2Weight(3));
53 EXPECT_EQ(110, Spdy3PriorityToHttp2Weight(4));
54 EXPECT_EQ(74, Spdy3PriorityToHttp2Weight(5));
55 EXPECT_EQ(37, Spdy3PriorityToHttp2Weight(6));
56 EXPECT_EQ(1, Spdy3PriorityToHttp2Weight(7));
57}
58
59TEST(SpdyProtocolTest, Http2WeightToSpdy3Priority) {
60 EXPECT_EQ(0u, Http2WeightToSpdy3Priority(256));
61 EXPECT_EQ(0u, Http2WeightToSpdy3Priority(221));
62 EXPECT_EQ(1u, Http2WeightToSpdy3Priority(220));
63 EXPECT_EQ(1u, Http2WeightToSpdy3Priority(184));
64 EXPECT_EQ(2u, Http2WeightToSpdy3Priority(183));
65 EXPECT_EQ(2u, Http2WeightToSpdy3Priority(148));
66 EXPECT_EQ(3u, Http2WeightToSpdy3Priority(147));
67 EXPECT_EQ(3u, Http2WeightToSpdy3Priority(111));
68 EXPECT_EQ(4u, Http2WeightToSpdy3Priority(110));
69 EXPECT_EQ(4u, Http2WeightToSpdy3Priority(75));
70 EXPECT_EQ(5u, Http2WeightToSpdy3Priority(74));
71 EXPECT_EQ(5u, Http2WeightToSpdy3Priority(38));
72 EXPECT_EQ(6u, Http2WeightToSpdy3Priority(37));
73 EXPECT_EQ(6u, Http2WeightToSpdy3Priority(2));
74 EXPECT_EQ(7u, Http2WeightToSpdy3Priority(1));
75}
76
77TEST(SpdyProtocolTest, IsValidHTTP2FrameStreamId) {
78 // Stream-specific frames must have non-zero stream ids
79 EXPECT_TRUE(IsValidHTTP2FrameStreamId(1, SpdyFrameType::DATA));
80 EXPECT_FALSE(IsValidHTTP2FrameStreamId(0, SpdyFrameType::DATA));
81 EXPECT_TRUE(IsValidHTTP2FrameStreamId(1, SpdyFrameType::HEADERS));
82 EXPECT_FALSE(IsValidHTTP2FrameStreamId(0, SpdyFrameType::HEADERS));
83 EXPECT_TRUE(IsValidHTTP2FrameStreamId(1, SpdyFrameType::PRIORITY));
84 EXPECT_FALSE(IsValidHTTP2FrameStreamId(0, SpdyFrameType::PRIORITY));
85 EXPECT_TRUE(IsValidHTTP2FrameStreamId(1, SpdyFrameType::RST_STREAM));
86 EXPECT_FALSE(IsValidHTTP2FrameStreamId(0, SpdyFrameType::RST_STREAM));
87 EXPECT_TRUE(IsValidHTTP2FrameStreamId(1, SpdyFrameType::CONTINUATION));
88 EXPECT_FALSE(IsValidHTTP2FrameStreamId(0, SpdyFrameType::CONTINUATION));
89 EXPECT_TRUE(IsValidHTTP2FrameStreamId(1, SpdyFrameType::PUSH_PROMISE));
90 EXPECT_FALSE(IsValidHTTP2FrameStreamId(0, SpdyFrameType::PUSH_PROMISE));
91
92 // Connection-level frames must have zero stream ids
93 EXPECT_FALSE(IsValidHTTP2FrameStreamId(1, SpdyFrameType::GOAWAY));
94 EXPECT_TRUE(IsValidHTTP2FrameStreamId(0, SpdyFrameType::GOAWAY));
95 EXPECT_FALSE(IsValidHTTP2FrameStreamId(1, SpdyFrameType::SETTINGS));
96 EXPECT_TRUE(IsValidHTTP2FrameStreamId(0, SpdyFrameType::SETTINGS));
97 EXPECT_FALSE(IsValidHTTP2FrameStreamId(1, SpdyFrameType::PING));
98 EXPECT_TRUE(IsValidHTTP2FrameStreamId(0, SpdyFrameType::PING));
99
100 // Frames that are neither stream-specific nor connection-level
101 // should not have their stream id declared invalid
102 EXPECT_TRUE(IsValidHTTP2FrameStreamId(1, SpdyFrameType::WINDOW_UPDATE));
103 EXPECT_TRUE(IsValidHTTP2FrameStreamId(0, SpdyFrameType::WINDOW_UPDATE));
104}
105
106TEST(SpdyProtocolTest, ParseSettingsId) {
107 SpdyKnownSettingsId setting_id;
108 EXPECT_FALSE(ParseSettingsId(0, &setting_id));
109 EXPECT_TRUE(ParseSettingsId(1, &setting_id));
110 EXPECT_EQ(SETTINGS_HEADER_TABLE_SIZE, setting_id);
111 EXPECT_TRUE(ParseSettingsId(2, &setting_id));
112 EXPECT_EQ(SETTINGS_ENABLE_PUSH, setting_id);
113 EXPECT_TRUE(ParseSettingsId(3, &setting_id));
114 EXPECT_EQ(SETTINGS_MAX_CONCURRENT_STREAMS, setting_id);
115 EXPECT_TRUE(ParseSettingsId(4, &setting_id));
116 EXPECT_EQ(SETTINGS_INITIAL_WINDOW_SIZE, setting_id);
117 EXPECT_TRUE(ParseSettingsId(5, &setting_id));
118 EXPECT_EQ(SETTINGS_MAX_FRAME_SIZE, setting_id);
119 EXPECT_TRUE(ParseSettingsId(6, &setting_id));
120 EXPECT_EQ(SETTINGS_MAX_HEADER_LIST_SIZE, setting_id);
121 EXPECT_FALSE(ParseSettingsId(7, &setting_id));
122 EXPECT_TRUE(ParseSettingsId(8, &setting_id));
123 EXPECT_EQ(SETTINGS_ENABLE_CONNECT_PROTOCOL, setting_id);
124 EXPECT_TRUE(ParseSettingsId(9, &setting_id));
125 EXPECT_EQ(SETTINGS_DEPRECATE_HTTP2_PRIORITIES, setting_id);
126 EXPECT_FALSE(ParseSettingsId(10, &setting_id));
127 EXPECT_FALSE(ParseSettingsId(0xFF44, &setting_id));
128 EXPECT_TRUE(ParseSettingsId(0xFF45, &setting_id));
129 EXPECT_EQ(SETTINGS_EXPERIMENT_SCHEDULER, setting_id);
130 EXPECT_FALSE(ParseSettingsId(0xFF46, &setting_id));
131}
132
133TEST(SpdyProtocolTest, SettingsIdToString) {
134 struct {
135 SpdySettingsId setting_id;
136 const std::string expected_string;
137 } test_cases[] = {
138 {0, "SETTINGS_UNKNOWN_0"},
139 {SETTINGS_HEADER_TABLE_SIZE, "SETTINGS_HEADER_TABLE_SIZE"},
140 {SETTINGS_ENABLE_PUSH, "SETTINGS_ENABLE_PUSH"},
141 {SETTINGS_MAX_CONCURRENT_STREAMS, "SETTINGS_MAX_CONCURRENT_STREAMS"},
142 {SETTINGS_INITIAL_WINDOW_SIZE, "SETTINGS_INITIAL_WINDOW_SIZE"},
143 {SETTINGS_MAX_FRAME_SIZE, "SETTINGS_MAX_FRAME_SIZE"},
144 {SETTINGS_MAX_HEADER_LIST_SIZE, "SETTINGS_MAX_HEADER_LIST_SIZE"},
145 {7, "SETTINGS_UNKNOWN_7"},
146 {SETTINGS_ENABLE_CONNECT_PROTOCOL, "SETTINGS_ENABLE_CONNECT_PROTOCOL"},
147 {SETTINGS_DEPRECATE_HTTP2_PRIORITIES,
148 "SETTINGS_DEPRECATE_HTTP2_PRIORITIES"},
149 {0xa, "SETTINGS_UNKNOWN_a"},
150 {0xFF44, "SETTINGS_UNKNOWN_ff44"},
151 {0xFF45, "SETTINGS_EXPERIMENT_SCHEDULER"},
152 {0xFF46, "SETTINGS_UNKNOWN_ff46"}};
153 for (auto test_case : test_cases) {
154 EXPECT_EQ(test_case.expected_string,
155 SettingsIdToString(test_case.setting_id));
156 }
157}
158
159TEST(SpdyStreamPrecedenceTest, Basic) {
160 SpdyStreamPrecedence spdy3_prec(2);
161 EXPECT_TRUE(spdy3_prec.is_spdy3_priority());
162 EXPECT_EQ(2, spdy3_prec.spdy3_priority());
163 EXPECT_EQ(kHttp2RootStreamId, spdy3_prec.parent_id());
164 EXPECT_EQ(Spdy3PriorityToHttp2Weight(2), spdy3_prec.weight());
165 EXPECT_FALSE(spdy3_prec.is_exclusive());
166
167 for (bool is_exclusive : {true, false}) {
168 SpdyStreamPrecedence h2_prec(7, 123, is_exclusive);
169 EXPECT_FALSE(h2_prec.is_spdy3_priority());
170 EXPECT_EQ(Http2WeightToSpdy3Priority(123), h2_prec.spdy3_priority());
171 EXPECT_EQ(7u, h2_prec.parent_id());
172 EXPECT_EQ(123, h2_prec.weight());
173 EXPECT_EQ(is_exclusive, h2_prec.is_exclusive());
174 }
175}
176
177TEST(SpdyStreamPrecedenceTest, Clamping) {
178 EXPECT_QUICHE_BUG(EXPECT_EQ(7, SpdyStreamPrecedence(8).spdy3_priority()),
179 "Invalid priority: 8");
180 EXPECT_QUICHE_BUG(EXPECT_EQ(kHttp2MinStreamWeight,
181 SpdyStreamPrecedence(3, 0, false).weight()),
182 "Invalid weight: 0");
183 EXPECT_QUICHE_BUG(EXPECT_EQ(kHttp2MaxStreamWeight,
184 SpdyStreamPrecedence(3, 300, false).weight()),
185 "Invalid weight: 300");
186}
187
188TEST(SpdyStreamPrecedenceTest, Copying) {
189 SpdyStreamPrecedence prec1(3);
190 SpdyStreamPrecedence copy1(prec1);
191 EXPECT_TRUE(copy1.is_spdy3_priority());
192 EXPECT_EQ(3, copy1.spdy3_priority());
193
194 SpdyStreamPrecedence prec2(4, 5, true);
195 SpdyStreamPrecedence copy2(prec2);
196 EXPECT_FALSE(copy2.is_spdy3_priority());
197 EXPECT_EQ(4u, copy2.parent_id());
198 EXPECT_EQ(5, copy2.weight());
199 EXPECT_TRUE(copy2.is_exclusive());
200
201 copy1 = prec2;
202 EXPECT_FALSE(copy1.is_spdy3_priority());
203 EXPECT_EQ(4u, copy1.parent_id());
204 EXPECT_EQ(5, copy1.weight());
205 EXPECT_TRUE(copy1.is_exclusive());
206
207 copy2 = prec1;
208 EXPECT_TRUE(copy2.is_spdy3_priority());
209 EXPECT_EQ(3, copy2.spdy3_priority());
210}
211
212TEST(SpdyStreamPrecedenceTest, Equals) {
213 EXPECT_EQ(SpdyStreamPrecedence(3), SpdyStreamPrecedence(3));
214 EXPECT_NE(SpdyStreamPrecedence(3), SpdyStreamPrecedence(4));
215
216 EXPECT_EQ(SpdyStreamPrecedence(1, 2, false),
217 SpdyStreamPrecedence(1, 2, false));
218 EXPECT_NE(SpdyStreamPrecedence(1, 2, false),
219 SpdyStreamPrecedence(2, 2, false));
220 EXPECT_NE(SpdyStreamPrecedence(1, 2, false),
221 SpdyStreamPrecedence(1, 3, false));
222 EXPECT_NE(SpdyStreamPrecedence(1, 2, false),
223 SpdyStreamPrecedence(1, 2, true));
224
225 SpdyStreamPrecedence spdy3_prec(3);
226 SpdyStreamPrecedence h2_prec(spdy3_prec.parent_id(), spdy3_prec.weight(),
227 spdy3_prec.is_exclusive());
228 EXPECT_NE(spdy3_prec, h2_prec);
229}
230
231TEST(SpdyDataIRTest, Construct) {
232 // Confirm that it makes a string of zero length from a
233 // absl::string_view(nullptr).
234 absl::string_view s1;
235 SpdyDataIR d1(/* stream_id = */ 1, s1);
236 EXPECT_EQ(0u, d1.data_len());
237 EXPECT_NE(nullptr, d1.data());
238
239 // Confirms makes a copy of char array.
240 const char s2[] = "something";
241 SpdyDataIR d2(/* stream_id = */ 2, s2);
242 EXPECT_EQ(absl::string_view(d2.data(), d2.data_len()), s2);
243 EXPECT_NE(absl::string_view(d1.data(), d1.data_len()), s2);
244 EXPECT_EQ((int)d1.data_len(), d1.flow_control_window_consumed());
245
246 // Confirm copies a const string.
247 const std::string foo = "foo";
248 SpdyDataIR d3(/* stream_id = */ 3, foo);
249 EXPECT_EQ(foo, d3.data());
250 EXPECT_EQ((int)d3.data_len(), d3.flow_control_window_consumed());
251
252 // Confirm copies a non-const string.
253 std::string bar = "bar";
254 SpdyDataIR d4(/* stream_id = */ 4, bar);
255 EXPECT_EQ("bar", bar);
256 EXPECT_EQ("bar", absl::string_view(d4.data(), d4.data_len()));
257
258 // Confirm moves an rvalue reference. Note that the test string "baz" is too
259 // short to trigger the move optimization, and instead a copy occurs.
260 std::string baz = "the quick brown fox";
261 SpdyDataIR d5(/* stream_id = */ 5, std::move(baz));
262 EXPECT_EQ("", baz);
263 EXPECT_EQ(absl::string_view(d5.data(), d5.data_len()), "the quick brown fox");
264
265 // Confirms makes a copy of string literal.
266 SpdyDataIR d7(/* stream_id = */ 7, "something else");
267 EXPECT_EQ(absl::string_view(d7.data(), d7.data_len()), "something else");
268
269 SpdyDataIR d8(/* stream_id = */ 8, "shawarma");
270 d8.set_padding_len(20);
271 EXPECT_EQ(28, d8.flow_control_window_consumed());
272}
273
274} // namespace test
275} // namespace spdy