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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/unknown_payload_decoder.h" |
| 6 |
| 7 #include <stddef.h> |
| 8 |
| 9 #include <string> |
| 10 #include <type_traits> |
| 11 |
| 12 #include "base/logging.h" |
| 13 #include "net/http2/decoder/frame_parts.h" |
| 14 #include "net/http2/decoder/frame_parts_collector.h" |
| 15 #include "net/http2/decoder/http2_frame_decoder_listener.h" |
| 16 #include "net/http2/decoder/payload_decoders/payload_decoder_base_test_util.h" |
| 17 #include "net/http2/http2_constants.h" |
| 18 #include "net/http2/http2_structures.h" |
| 19 #include "net/http2/tools/http2_random.h" |
| 20 #include "net/http2/tools/random_decoder_test.h" |
| 21 #include "testing/gtest/include/gtest/gtest.h" |
| 22 |
| 23 using std::string; |
| 24 |
| 25 namespace net { |
| 26 namespace test { |
| 27 namespace { |
| 28 Http2FrameType g_unknown_frame_type; |
| 29 } // namespace |
| 30 |
| 31 // Provides friend access to an instance of the payload decoder, and also |
| 32 // provides info to aid in testing. |
| 33 class UnknownPayloadDecoderPeer { |
| 34 public: |
| 35 static Http2FrameType FrameType() { return g_unknown_frame_type; } |
| 36 |
| 37 // Returns the mask of flags that affect the decoding of the payload (i.e. |
| 38 // flags that that indicate the presence of certain fields or padding). |
| 39 static constexpr uint8_t FlagsAffectingPayloadDecoding() { return 0; } |
| 40 |
| 41 static void Randomize(UnknownPayloadDecoder* p, RandomBase* rng) { |
| 42 // UnknownPayloadDecoder has no fields, so there is nothing to randomize. |
| 43 static_assert(std::is_empty<UnknownPayloadDecoder>::value, |
| 44 "Need to randomize fields of UnknownPayloadDecoder"); |
| 45 } |
| 46 }; |
| 47 |
| 48 namespace { |
| 49 |
| 50 struct Listener : public FramePartsCollector { |
| 51 void OnUnknownStart(const Http2FrameHeader& header) override { |
| 52 VLOG(1) << "OnUnknownStart: " << header; |
| 53 StartFrame(header)->OnUnknownStart(header); |
| 54 } |
| 55 |
| 56 void OnUnknownPayload(const char* data, size_t len) override { |
| 57 VLOG(1) << "OnUnknownPayload: len=" << len; |
| 58 CurrentFrame()->OnUnknownPayload(data, len); |
| 59 } |
| 60 |
| 61 void OnUnknownEnd() override { |
| 62 VLOG(1) << "OnUnknownEnd"; |
| 63 EndFrame()->OnUnknownEnd(); |
| 64 } |
| 65 }; |
| 66 |
| 67 constexpr bool SupportedFrameType = false; |
| 68 |
| 69 class UnknownPayloadDecoderTest |
| 70 : public AbstractPayloadDecoderTest<UnknownPayloadDecoder, |
| 71 UnknownPayloadDecoderPeer, |
| 72 Listener, |
| 73 SupportedFrameType>, |
| 74 public ::testing::WithParamInterface<uint32_t> { |
| 75 protected: |
| 76 UnknownPayloadDecoderTest() : length_(GetParam()) { |
| 77 VLOG(1) << "################ length_=" << length_ << " ################"; |
| 78 |
| 79 // Each test case will choose a random frame type that isn't supported. |
| 80 do { |
| 81 g_unknown_frame_type = static_cast<Http2FrameType>(Random().Rand8()); |
| 82 } while (IsSupportedHttp2FrameType(g_unknown_frame_type)); |
| 83 } |
| 84 |
| 85 const uint32_t length_; |
| 86 }; |
| 87 |
| 88 INSTANTIATE_TEST_CASE_P(VariousLengths, |
| 89 UnknownPayloadDecoderTest, |
| 90 ::testing::Values(0, 1, 2, 3, 255, 256)); |
| 91 |
| 92 TEST_P(UnknownPayloadDecoderTest, ValidLength) { |
| 93 string unknown_payload = Random().RandString(length_); |
| 94 Http2FrameHeader frame_header(length_, g_unknown_frame_type, Random().Rand8(), |
| 95 RandStreamId()); |
| 96 set_frame_header(frame_header); |
| 97 FrameParts expected(frame_header, unknown_payload); |
| 98 EXPECT_TRUE(DecodePayloadAndValidateSeveralWays(unknown_payload, expected)); |
| 99 // TODO(jamessynge): Check here (and in other such tests) that the fast |
| 100 // and slow decode counts are both non-zero. Perhaps also add some kind of |
| 101 // test for the listener having been called. That could simply be a test |
| 102 // that there is a single collected FrameParts instance, and that it matches |
| 103 // expected. |
| 104 } |
| 105 |
| 106 } // namespace |
| 107 } // namespace test |
| 108 } // namespace net |
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