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

net/http2/decoder/payload_decoders/settings_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/settings_payload_decoder.h"
-
-#include <stddef.h>
-
-#include <vector>
-
-#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_constants_test_util.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"
-
-namespace net {
-namespace test {
-
-class SettingsPayloadDecoderPeer {
- public:
-  static constexpr Http2FrameType FrameType() {
-    return Http2FrameType::SETTINGS;
-  }
-
-  // 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_ACK;
-  }
-
-  static void Randomize(SettingsPayloadDecoder* p, RandomBase* rng) {
-    VLOG(1) << "SettingsPayloadDecoderPeer::Randomize";
-    test::Randomize(&p->setting_fields_, rng);
-  }
-};
-
-namespace {
-
-struct Listener : public FramePartsCollector {
-  void OnSettingsStart(const Http2FrameHeader& header) override {
-    VLOG(1) << "OnSettingsStart: " << header;
-    EXPECT_EQ(Http2FrameType::SETTINGS, header.type) << header;
-    EXPECT_EQ(Http2FrameFlag(), header.flags) << header;
-    StartFrame(header)->OnSettingsStart(header);
-  }
-
-  void OnSetting(const Http2SettingFields& setting_fields) override {
-    VLOG(1) << "Http2SettingFields: setting_fields=" << setting_fields;
-    CurrentFrame()->OnSetting(setting_fields);
-  }
-
-  void OnSettingsEnd() override {
-    VLOG(1) << "OnSettingsEnd";
-    EndFrame()->OnSettingsEnd();
-  }
-
-  void OnSettingsAck(const Http2FrameHeader& header) override {
-    VLOG(1) << "OnSettingsAck: " << header;
-    StartAndEndFrame(header)->OnSettingsAck(header);
-  }
-
-  void OnFrameSizeError(const Http2FrameHeader& header) override {
-    VLOG(1) << "OnFrameSizeError: " << header;
-    FrameError(header)->OnFrameSizeError(header);
-  }
-};
-
-class SettingsPayloadDecoderTest
-    : public AbstractPayloadDecoderTest<SettingsPayloadDecoder,
-                                        SettingsPayloadDecoderPeer,
-                                        Listener> {
- public:
-  static bool ApproveSizeForSettingsWrongSize(size_t size) {
-    // Should get an error if size is not an integral multiple of the size
-    // of one setting.
-    return 0 != (size % Http2SettingFields::EncodedSize());
-  }
-
-  static bool ApproveSizeForSettingsAkcWrongSize(size_t size) {
-    return size != 0;
-  }
-
- protected:
-  Http2SettingFields RandSettingsFields() {
-    Http2SettingFields fields;
-    test::Randomize(&fields, RandomPtr());
-    return fields;
-  }
-};
-
-// Confirm we get an error if the SETTINGS payload is not the correct size
-// to hold exactly zero or more whole Http2SettingFields.
-TEST_F(SettingsPayloadDecoderTest, SettingsWrongSize) {
-  Http2FrameBuilder fb;
-  fb.Append(RandSettingsFields());
-  fb.Append(RandSettingsFields());
-  fb.Append(RandSettingsFields());
-  EXPECT_TRUE(VerifyDetectsFrameSizeError(
-      0, fb.buffer(),
-      base::Bind(
-          &SettingsPayloadDecoderTest::ApproveSizeForSettingsWrongSize)));
-}
-
-// Confirm we get an error if the SETTINGS ACK payload is not empty.
-TEST_F(SettingsPayloadDecoderTest, SettingsAkcWrongSize) {
-  Http2FrameBuilder fb;
-  fb.Append(RandSettingsFields());
-  fb.Append(RandSettingsFields());
-  fb.Append(RandSettingsFields());
-  EXPECT_TRUE(VerifyDetectsFrameSizeError(
-      Http2FrameFlag::FLAG_ACK, fb.buffer(),
-      base::Bind(
-          &SettingsPayloadDecoderTest::ApproveSizeForSettingsAkcWrongSize)));
-}
-
-// SETTINGS must have stream_id==0, but the payload decoder doesn't check that.
-TEST_F(SettingsPayloadDecoderTest, SettingsAck) {
-  for (int stream_id = 0; stream_id < 3; ++stream_id) {
-    Http2FrameHeader header(0, Http2FrameType::SETTINGS,
-                            RandFlags() | Http2FrameFlag::FLAG_ACK, stream_id);
-    set_frame_header(header);
-    FrameParts expected(header);
-    EXPECT_TRUE(DecodePayloadAndValidateSeveralWays("", expected));
-  }
-}
-
-// Try several values of each known SETTINGS parameter.
-TEST_F(SettingsPayloadDecoderTest, OneRealSetting) {
-  std::vector<uint32_t> values = {0, 1, 0xffffffff, Random().Rand32()};
-  for (auto param : AllHttp2SettingsParameters()) {
-    for (uint32_t value : values) {
-      Http2SettingFields fields(param, value);
-      Http2FrameBuilder fb;
-      fb.Append(fields);
-      Http2FrameHeader header(fb.size(), Http2FrameType::SETTINGS, RandFlags(),
-                              RandStreamId());
-      set_frame_header(header);
-      FrameParts expected(header);
-      expected.settings.push_back(fields);
-      EXPECT_TRUE(DecodePayloadAndValidateSeveralWays(fb.buffer(), expected));
-    }
-  }
-}
-
-// Decode a SETTINGS frame with lots of fields.
-TEST_F(SettingsPayloadDecoderTest, ManySettings) {
-  const uint32_t num_settings = 100;
-  const uint32_t size = Http2SettingFields::EncodedSize() * num_settings;
-  Http2FrameHeader header(size, Http2FrameType::SETTINGS,
-                          RandFlags(),  // & ~Http2FrameFlag::FLAG_ACK,
-                          RandStreamId());
-  set_frame_header(header);
-  FrameParts expected(header);
-  Http2FrameBuilder fb;
-  for (size_t n = 0; n < num_settings; ++n) {
-    Http2SettingFields fields(static_cast<Http2SettingsParameter>(n),
-                              Random().Rand32());
-    fb.Append(fields);
-    expected.settings.push_back(fields);
-  }
-  ASSERT_EQ(size, fb.size());
-  EXPECT_TRUE(DecodePayloadAndValidateSeveralWays(fb.buffer(), expected));
-}
-
-}  // namespace
-}  // namespace test
-}  // namespace net