// Copyright (c) 2012 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.

#ifndef NET_SPDY_SPDY_TEST_UTILS_H_
#define NET_SPDY_SPDY_TEST_UTILS_H_

#include <stddef.h>
#include <stdint.h>

#include <string>

#include "base/strings/string_piece.h"
#include "net/spdy/server_push_delegate.h"
#include "net/spdy/spdy_bug_tracker.h"
#include "net/spdy/spdy_header_block.h"
#include "net/spdy/spdy_headers_handler_interface.h"
#include "net/spdy/spdy_protocol.h"
#include "net/test/gtest_util.h"

#define EXPECT_SPDY_BUG EXPECT_DFATAL

namespace net {

class HashValue;
class TransportSecurityState;

inline bool operator==(base::StringPiece x,
                       const SpdyHeaderBlock::ValueProxy& y) {
  return x == y.as_string();
}

namespace test {

std::string HexDumpWithMarks(const unsigned char* data, int length,
                             const bool* marks, int mark_length);

void CompareCharArraysWithHexError(
    const std::string& description,
    const unsigned char* actual,
    const int actual_len,
    const unsigned char* expected,
    const int expected_len);

void SetFrameFlags(SpdySerializedFrame* frame,
                   uint8_t flags,
                   SpdyMajorVersion spdy_version);

void SetFrameLength(SpdySerializedFrame* frame,
                    size_t length,
                    SpdyMajorVersion spdy_version);

std::string a2b_hex(const char* hex_data);

// Returns a SHA1 HashValue in which each byte has the value |label|.
HashValue GetTestHashValue(uint8_t label);

// Returns SHA1 pinning header for the of the base64 encoding of
// GetTestHashValue(|label|).
std::string GetTestPin(uint8_t label);

// Adds a pin for |host| to |state|.
void AddPin(TransportSecurityState* state,
            const std::string& host,
            uint8_t primary_label,
            uint8_t backup_label);

// A test implementation of SpdyHeadersHandlerInterface that correctly
// reconstructs multiple header values for the same name.
class TestHeadersHandler : public SpdyHeadersHandlerInterface {
 public:
  TestHeadersHandler() : header_bytes_parsed_(0) {}

  void OnHeaderBlockStart() override;

  void OnHeader(base::StringPiece name, base::StringPiece value) override;

  void OnHeaderBlockEnd(size_t header_bytes_parsed) override;

  void OnHeaderBlockEnd(size_t header_bytes_parsed,
                        size_t /* compressed_header_bytes_parsed */) override;

  const SpdyHeaderBlock& decoded_block() const { return block_; }
  size_t header_bytes_parsed() { return header_bytes_parsed_; }

 private:
  SpdyHeaderBlock block_;
  size_t header_bytes_parsed_;

  DISALLOW_COPY_AND_ASSIGN(TestHeadersHandler);
};

// A test implementation of ServerPushDelegate that caches all the pushed
// request and provides a interface to cancel the push given url.
class TestServerPushDelegate : public ServerPushDelegate {
 public:
  explicit TestServerPushDelegate();
  ~TestServerPushDelegate() override;

  void OnPush(std::unique_ptr<ServerPushHelper> push_helper) override;

  bool CancelPush(GURL url);

 private:
  std::map<GURL, std::unique_ptr<ServerPushHelper>> push_helpers;
};

}  // namespace test
}  // namespace net

#endif  // NET_SPDY_SPDY_TEST_UTILS_H_