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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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