Land Recent QUIC changes

net/quic/crypto/cert_compressor_test.cc

+// Copyright (c) 2013 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/quic/crypto/cert_compressor.h"
+
+#include "base/strings/string_number_conversions.h"
+#include "net/quic/quic_utils.h"
+#include "net/quic/test_tools/crypto_test_utils.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using base::StringPiece;
+using std::string;
+using std::vector;
+
+namespace net {
+namespace test {
+
+TEST(CertCompressor, EmptyChain) {
+  vector<string> chain;
+  const string compressed =
+      CertCompressor::CompressChain(chain, StringPiece(), StringPiece(), NULL);
+  EXPECT_EQ("00", base::HexEncode(compressed.data(), compressed.size()));
+
+  vector<string> chain2, cached_certs;
+  ASSERT_TRUE(CertCompressor::DecompressChain(
+      compressed, cached_certs, NULL, &chain2));
+  EXPECT_EQ(chain.size(), chain2.size());
+}
+
+TEST(CertCompressor, Compressed) {
+  vector<string> chain;
+  chain.push_back("testcert");
+  const string compressed =
+      CertCompressor::CompressChain(chain, StringPiece(), StringPiece(), NULL);
+  ASSERT_GE(compressed.size(), 2u);
+  EXPECT_EQ("0100", base::HexEncode(compressed.substr(0, 2).data(), 2));
+
+  vector<string> chain2, cached_certs;
+  ASSERT_TRUE(CertCompressor::DecompressChain(
+      compressed, cached_certs, NULL, &chain2));
+  EXPECT_EQ(chain.size(), chain2.size());
+  EXPECT_EQ(chain[0], chain2[0]);
+}
+
+TEST(CertCompressor, Common) {
+  vector<string> chain;
+  chain.push_back("testcert");
+  static const uint64 set_hash = 42;
+  scoped_ptr<CommonCertSet> common_set(
+      CryptoTestUtils::MockCommonCertSet(chain[0], set_hash, 1));
+  const string compressed = CertCompressor::CompressChain(
+      chain, StringPiece(reinterpret_cast<const char*>(&set_hash),
+                         sizeof(set_hash)),
+      StringPiece(), common_set.get());
+  const string common("03" /* common */
+                      "2A00000000000000" /* set hash 42 */
+                      "01000000" /* index 1 */
+                      "00" /* end of list */);
+  EXPECT_EQ(common.data(),
+            base::HexEncode(compressed.data(), compressed.size()));
+
+  vector<string> chain2, cached_certs;
+  ASSERT_TRUE(CertCompressor::DecompressChain(
+      compressed, cached_certs, common_set.get(), &chain2));
+  EXPECT_EQ(chain.size(), chain2.size());
+  EXPECT_EQ(chain[0], chain2[0]);
+}
+
+TEST(CertCompressor, Cached) {
+  vector<string> chain;
+  chain.push_back("testcert");
+  uint64 hash = QuicUtils::FNV1a_64_Hash(chain[0].data(), chain[0].size());
+  StringPiece hash_bytes(reinterpret_cast<char*>(&hash), sizeof(hash));
+  const string compressed =
+      CertCompressor::CompressChain(chain, StringPiece(), hash_bytes, NULL);
+
+  EXPECT_EQ("02" /* cached */ +
+            base::HexEncode(hash_bytes.data(), hash_bytes.size()) +
+            "00" /* end of list */,
+            base::HexEncode(compressed.data(), compressed.size()));
+
+  vector<string> cached_certs, chain2;
+  cached_certs.push_back(chain[0]);
+  ASSERT_TRUE(CertCompressor::DecompressChain(
+      compressed, cached_certs, NULL, &chain2));
+  EXPECT_EQ(chain.size(), chain2.size());
+  EXPECT_EQ(chain[0], chain2[0]);
+}
+
+TEST(CertCompressor, BadInputs) {
+  vector<string> cached_certs, chain;
+
+  /* bad entry type */
+  const string bad_entry("04");
+  EXPECT_FALSE(CertCompressor::DecompressChain(
+      base::HexEncode(bad_entry.data(), bad_entry.size()),
+      cached_certs, NULL, &chain));
+
+  /* no terminator */
+  const string no_terminator("01");
+  EXPECT_FALSE(CertCompressor::DecompressChain(
+      base::HexEncode(no_terminator.data(), no_terminator.size()),
+      cached_certs, NULL, &chain));
+
+  /* hash truncated */
+  const string hash_truncated("0200");
+  EXPECT_FALSE(CertCompressor::DecompressChain(
+      base::HexEncode(hash_truncated.data(), hash_truncated.size()),
+      cached_certs, NULL, &chain));
+
+  /* hash and index truncated */
+  const string hash_and_index_truncated("0300");
+  EXPECT_FALSE(CertCompressor::DecompressChain(
+      base::HexEncode(hash_and_index_truncated.data(),
+                      hash_and_index_truncated.size()),
+      cached_certs, NULL, &chain));
+
+  /* without a CommonCertSet */
+  const string without_a_common_cert_set(
+      "03" "0000000000000000" "00000000");
+  EXPECT_FALSE(CertCompressor::DecompressChain(
+      base::HexEncode(without_a_common_cert_set.data(),
+                      without_a_common_cert_set.size()),
+      cached_certs, NULL, &chain));
+
+  scoped_ptr<CommonCertSet> common_set(
+      CryptoTestUtils::MockCommonCertSet("foo", 42, 1));
+
+  /* incorrect hash and index */
+  const string incorrect_hash_and_index(
+      "03" "a200000000000000" "00000000");
+  EXPECT_FALSE(CertCompressor::DecompressChain(
+      base::HexEncode(incorrect_hash_and_index.data(),
+                      incorrect_hash_and_index.size()),
+      cached_certs, NULL, &chain));
+}
+
+}  // namespace test
+}  // namespace net