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

net/http2/decoder/payload_decoders/data_payload_decoder_test.cc

Index: net/http2/decoder/payload_decoders/data_payload_decoder_test.cc
diff --git a/net/http2/decoder/payload_decoders/data_payload_decoder_test.cc b/net/http2/decoder/payload_decoders/data_payload_decoder_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..bedb32f35b75559ad16c6bb9ba2fa5e0e00c053e
--- /dev/null
+++ b/net/http2/decoder/payload_decoders/data_payload_decoder_test.cc
@@ -0,0 +1,120 @@
+// 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/data_payload_decoder.h"
+
+#include <stddef.h>
+
+#include <string>
+
+#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.h"
+#include "net/http2/http2_structures_test_util.h"
+#include "net/http2/tools/failure.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 ::testing::AssertionResult;
+using std::string;
+
+namespace net {
+namespace test {
+
+// Provides friend access to an instance of the payload decoder, and also
+// provides info to aid in testing.
+class DataPayloadDecoderPeer {
+ public:
+  static constexpr Http2FrameType FrameType() { return Http2FrameType::DATA; }
+
+  // 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;
+  }
+
+  static void Randomize(DataPayloadDecoder* p, RandomBase* rng) {
+    VLOG(1) << "DataPayloadDecoderPeer::Randomize";
+    CorruptEnum(&p->payload_state_, rng);
+  }
+};
+
+namespace {
+
+struct Listener : public FramePartsCollector {
+  void OnDataStart(const Http2FrameHeader& header) override {
+    VLOG(1) << "OnDataStart: " << header;
+    StartFrame(header)->OnDataStart(header);
+  }
+
+  void OnDataPayload(const char* data, size_t len) override {
+    VLOG(1) << "OnDataPayload: len=" << len;
+    CurrentFrame()->OnDataPayload(data, len);
+  }
+
+  void OnDataEnd() override {
+    VLOG(1) << "OnDataEnd";
+    EndFrame()->OnDataEnd();
+  }
+
+  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;
+    EndFrame()->OnPaddingTooLong(header, missing_length);
+  }
+};
+
+class DataPayloadDecoderTest
+    : public AbstractPaddablePayloadDecoderTest<DataPayloadDecoder,
+                                                DataPayloadDecoderPeer,
+                                                Listener> {
+ protected:
+  AssertionResult CreateAndDecodeDataOfSize(size_t data_size) {
+    Reset();
+    uint8_t flags = RandFlags();
+
+    string data_payload = Random().RandString(data_size);
+    frame_builder_.Append(data_payload);
+    MaybeAppendTrailingPadding();
+
+    Http2FrameHeader frame_header(frame_builder_.size(), Http2FrameType::DATA,
+                                  flags, RandStreamId());
+    set_frame_header(frame_header);
+    ScrubFlagsOfHeader(&frame_header);
+    FrameParts expected(frame_header, data_payload, total_pad_length_);
+    VERIFY_AND_RETURN_SUCCESS(
+        DecodePayloadAndValidateSeveralWays(frame_builder_.buffer(), expected));
+  }
+};
+
+INSTANTIATE_TEST_CASE_P(VariousPadLengths,
+                        DataPayloadDecoderTest,
+                        ::testing::Values(0, 1, 2, 3, 4, 254, 255, 256));
+
+TEST_P(DataPayloadDecoderTest, VariousDataPayloadSizes) {
+  for (size_t data_size : {0, 1, 2, 3, 255, 256, 1024}) {
+    EXPECT_TRUE(CreateAndDecodeDataOfSize(data_size));
+  }
+}
+
+}  // namespace
+}  // namespace test
+}  // namespace net