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1 // Copyright 2016 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/http2/decoder/payload_decoders/window_update_payload_decoder.h" | |
6 | |
7 #include <stddef.h> | |
8 | |
9 #include "base/bind.h" | |
10 #include "base/logging.h" | |
11 #include "net/http2/decoder/frame_parts.h" | |
12 #include "net/http2/decoder/frame_parts_collector.h" | |
13 #include "net/http2/decoder/http2_frame_decoder_listener.h" | |
14 #include "net/http2/decoder/payload_decoders/payload_decoder_base_test_util.h" | |
15 #include "net/http2/http2_constants.h" | |
16 #include "net/http2/http2_structures_test_util.h" | |
17 #include "net/http2/tools/http2_frame_builder.h" | |
18 #include "net/http2/tools/http2_random.h" | |
19 #include "net/http2/tools/random_decoder_test.h" | |
20 #include "testing/gtest/include/gtest/gtest.h" | |
21 | |
22 namespace net { | |
23 namespace test { | |
24 | |
25 class WindowUpdatePayloadDecoderPeer { | |
26 public: | |
27 static constexpr Http2FrameType FrameType() { | |
28 return Http2FrameType::WINDOW_UPDATE; | |
29 } | |
30 | |
31 // Returns the mask of flags that affect the decoding of the payload (i.e. | |
32 // flags that that indicate the presence of certain fields or padding). | |
33 static constexpr uint8_t FlagsAffectingPayloadDecoding() { return 0; } | |
34 | |
35 static void Randomize(WindowUpdatePayloadDecoder* p, RandomBase* rng) { | |
36 test::Randomize(&p->window_update_fields_, rng); | |
37 VLOG(1) << "WindowUpdatePayloadDecoderPeer::Randomize " | |
38 << "window_update_fields_: " << p->window_update_fields_; | |
39 } | |
40 }; | |
41 | |
42 namespace { | |
43 | |
44 struct Listener : public FramePartsCollector { | |
45 void OnWindowUpdate(const Http2FrameHeader& header, | |
46 uint32_t window_size_increment) override { | |
47 VLOG(1) << "OnWindowUpdate: " << header | |
48 << "; window_size_increment=" << window_size_increment; | |
49 EXPECT_EQ(Http2FrameType::WINDOW_UPDATE, header.type); | |
50 StartAndEndFrame(header)->OnWindowUpdate(header, window_size_increment); | |
51 } | |
52 | |
53 void OnFrameSizeError(const Http2FrameHeader& header) override { | |
54 VLOG(1) << "OnFrameSizeError: " << header; | |
55 FrameError(header)->OnFrameSizeError(header); | |
56 } | |
57 }; | |
58 | |
59 class WindowUpdatePayloadDecoderTest | |
60 : public AbstractPayloadDecoderTest<WindowUpdatePayloadDecoder, | |
61 WindowUpdatePayloadDecoderPeer, | |
62 Listener> { | |
63 public: | |
64 static bool ApproveSizeForWrongSize(size_t size) { | |
65 return size != Http2WindowUpdateFields::EncodedSize(); | |
66 } | |
67 | |
68 protected: | |
69 Http2WindowUpdateFields RandWindowUpdateFields() { | |
70 Http2WindowUpdateFields fields; | |
71 test::Randomize(&fields, RandomPtr()); | |
72 VLOG(3) << "RandWindowUpdateFields: " << fields; | |
73 return fields; | |
74 } | |
75 }; | |
76 | |
77 // Confirm we get an error if the payload is not the correct size to hold | |
78 // exactly one Http2WindowUpdateFields. | |
79 TEST_F(WindowUpdatePayloadDecoderTest, WrongSize) { | |
80 Http2FrameBuilder fb; | |
81 fb.Append(RandWindowUpdateFields()); | |
82 fb.Append(RandWindowUpdateFields()); | |
83 fb.Append(RandWindowUpdateFields()); | |
84 EXPECT_TRUE(VerifyDetectsFrameSizeError( | |
85 0, fb.buffer(), | |
86 base::Bind(&WindowUpdatePayloadDecoderTest::ApproveSizeForWrongSize))); | |
87 } | |
88 | |
89 TEST_F(WindowUpdatePayloadDecoderTest, VariousPayloads) { | |
90 for (int n = 0; n < 100; ++n) { | |
91 uint32_t stream_id = n == 0 ? 0 : RandStreamId(); | |
92 Http2WindowUpdateFields fields = RandWindowUpdateFields(); | |
93 Http2FrameBuilder fb; | |
94 fb.Append(fields); | |
95 Http2FrameHeader header(fb.size(), Http2FrameType::WINDOW_UPDATE, | |
96 RandFlags(), stream_id); | |
97 set_frame_header(header); | |
98 FrameParts expected(header); | |
99 expected.opt_window_update_increment = fields.window_size_increment; | |
100 EXPECT_TRUE(DecodePayloadAndValidateSeveralWays(fb.buffer(), expected)); | |
101 } | |
102 } | |
103 | |
104 } // namespace | |
105 } // namespace test | |
106 } // namespace net | |
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