Revert of Add new HTTP/2 and HPACK decoder in net/http2/.

net/http2/decoder/payload_decoders/headers_payload_decoder_test.cc

-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "net/http2/decoder/payload_decoders/headers_payload_decoder.h"
-
-#include <stddef.h>
-
-#include <string>
-
-#include "base/bind.h"
-#include "base/logging.h"
-#include "net/http2/decoder/frame_parts.h"
-#include "net/http2/decoder/frame_parts_collector.h"
-#include "net/http2/decoder/http2_frame_decoder_listener.h"
-#include "net/http2/decoder/payload_decoders/payload_decoder_base_test_util.h"
-#include "net/http2/http2_constants.h"
-#include "net/http2/http2_structures_test_util.h"
-#include "net/http2/tools/http2_frame_builder.h"
-#include "net/http2/tools/http2_random.h"
-#include "net/http2/tools/random_decoder_test.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-using std::string;
-
-namespace net {
-namespace test {
-
-class HeadersPayloadDecoderPeer {
- public:
-  static constexpr Http2FrameType FrameType() {
-    return Http2FrameType::HEADERS;
-  }
-
-  // Returns the mask of flags that affect the decoding of the payload (i.e.
-  // flags that that indicate the presence of certain fields or padding).
-  static constexpr uint8_t FlagsAffectingPayloadDecoding() {
-    return Http2FrameFlag::FLAG_PADDED | Http2FrameFlag::FLAG_PRIORITY;
-  }
-
-  static void Randomize(HeadersPayloadDecoder* p, RandomBase* rng) {
-    CorruptEnum(&p->payload_state_, rng);
-    test::Randomize(&p->priority_fields_, rng);
-    VLOG(1) << "HeadersPayloadDecoderPeer::Randomize priority_fields_: "
-            << p->priority_fields_;
-  }
-};
-
-namespace {
-
-// Listener handles all On* methods that are expected to be called. If any other
-// On* methods of Http2FrameDecoderListener is called then the test fails; this
-// is achieved by way of FailingHttp2FrameDecoderListener, the base class of
-// FramePartsCollector.
-// These On* methods make use of StartFrame, EndFrame, etc. of the base class
-// to create and access to FrameParts instance(s) that will record the details.
-// After decoding, the test validation code can access the FramePart instance(s)
-// via the public methods of FramePartsCollector.
-struct Listener : public FramePartsCollector {
-  void OnHeadersStart(const Http2FrameHeader& header) override {
-    VLOG(1) << "OnHeadersStart: " << header;
-    StartFrame(header)->OnHeadersStart(header);
-  }
-
-  void OnHeadersPriority(const Http2PriorityFields& priority) override {
-    VLOG(1) << "OnHeadersPriority: " << priority;
-    CurrentFrame()->OnHeadersPriority(priority);
-  }
-
-  void OnHpackFragment(const char* data, size_t len) override {
-    VLOG(1) << "OnHpackFragment: len=" << len;
-    CurrentFrame()->OnHpackFragment(data, len);
-  }
-
-  void OnHeadersEnd() override {
-    VLOG(1) << "OnHeadersEnd";
-    EndFrame()->OnHeadersEnd();
-  }
-
-  void OnPadLength(size_t pad_length) override {
-    VLOG(1) << "OnPadLength: " << pad_length;
-    CurrentFrame()->OnPadLength(pad_length);
-  }
-
-  void OnPadding(const char* padding, size_t skipped_length) override {
-    VLOG(1) << "OnPadding: " << skipped_length;
-    CurrentFrame()->OnPadding(padding, skipped_length);
-  }
-
-  void OnPaddingTooLong(const Http2FrameHeader& header,
-                        size_t missing_length) override {
-    VLOG(1) << "OnPaddingTooLong: " << header
-            << "; missing_length: " << missing_length;
-    FrameError(header)->OnPaddingTooLong(header, missing_length);
-  }
-
-  void OnFrameSizeError(const Http2FrameHeader& header) override {
-    VLOG(1) << "OnFrameSizeError: " << header;
-    FrameError(header)->OnFrameSizeError(header);
-  }
-};
-
-class HeadersPayloadDecoderTest
-    : public AbstractPaddablePayloadDecoderTest<HeadersPayloadDecoder,
-                                                HeadersPayloadDecoderPeer,
-                                                Listener> {
- public:
-  static bool ApproveSizeForTruncated(size_t size) {
-    return size != Http2PriorityFields::EncodedSize();
-  }
-};
-
-INSTANTIATE_TEST_CASE_P(VariousPadLengths,
-                        HeadersPayloadDecoderTest,
-                        ::testing::Values(0, 1, 2, 3, 4, 254, 255, 256));
-
-// Decode various sizes of (fake) HPACK payload, both with and without the
-// PRIORITY flag set.
-TEST_P(HeadersPayloadDecoderTest, VariousHpackPayloadSizes) {
-  for (size_t hpack_size : {0, 1, 2, 3, 255, 256, 1024}) {
-    LOG(INFO) << "###########   hpack_size = " << hpack_size << "  ###########";
-    Http2PriorityFields priority(RandStreamId(), 1 + Random().Rand8(),
-                                 Random().OneIn(2));
-
-    for (bool has_priority : {false, true}) {
-      Reset();
-      ASSERT_EQ(IsPadded() ? 1u : 0u, frame_builder_.size());
-      uint8_t flags = RandFlags();
-      if (has_priority) {
-        flags |= Http2FrameFlag::FLAG_PRIORITY;
-        frame_builder_.Append(priority);
-      }
-
-      string hpack_payload = Random().RandString(hpack_size);
-      frame_builder_.Append(hpack_payload);
-
-      MaybeAppendTrailingPadding();
-      Http2FrameHeader frame_header(frame_builder_.size(),
-                                    Http2FrameType::HEADERS, flags,
-                                    RandStreamId());
-      set_frame_header(frame_header);
-      ScrubFlagsOfHeader(&frame_header);
-      FrameParts expected(frame_header, hpack_payload, total_pad_length_);
-      if (has_priority) {
-        expected.opt_priority = priority;
-      }
-      EXPECT_TRUE(DecodePayloadAndValidateSeveralWays(frame_builder_.buffer(),
-                                                      expected));
-    }
-  }
-}
-
-// Confirm we get an error if the PRIORITY flag is set but the payload is
-// not long enough, regardless of the amount of (valid) padding.
-TEST_P(HeadersPayloadDecoderTest, Truncated) {
-  Http2FrameBuilder fb;
-  fb.Append(Http2PriorityFields(RandStreamId(), 1 + Random().Rand8(),
-                                Random().OneIn(2)));
-  EXPECT_TRUE(VerifyDetectsMultipleFrameSizeErrors(
-      Http2FrameFlag::FLAG_PRIORITY, fb.buffer(),
-      base::Bind(&HeadersPayloadDecoderTest::ApproveSizeForTruncated),
-      total_pad_length_));
-}
-
-// Confirm we get an error if the PADDED flag is set but the payload is not
-// long enough to hold even the Pad Length amount of padding.
-TEST_P(HeadersPayloadDecoderTest, PaddingTooLong) {
-  EXPECT_TRUE(VerifyDetectsPaddingTooLong());
-}
-
-}  // namespace
-}  // namespace test
-}  // namespace net