| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // Author: sligocki@google.com (Shawn Ligocki) |
| |
| #include "pagespeed/kernel/base/hasher.h" |
| |
| #include "base/logging.h" |
| #include "pagespeed/kernel/base/gtest.h" |
| |
| namespace net_instaweb { |
| |
| namespace { |
| |
| // Hasher implementation with a trivial RawHash function. |
| class DummyHasher : public Hasher { |
| public: |
| DummyHasher() : Hasher(10) {} |
| virtual ~DummyHasher() {} |
| |
| // Arbitrary number of bytes to return (> 8). |
| virtual int RawHashSizeInBytes() const { |
| return 16; |
| } |
| |
| virtual GoogleString RawHash(const StringPiece& content) const { |
| GoogleString result = content.as_string(); |
| result.resize(RawHashSizeInBytes()); |
| CHECK_EQ(RawHashSizeInBytes(), result.size()); |
| return result; |
| } |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(DummyHasher); |
| }; |
| |
| TEST(HasherTest, HashToUint64) { |
| const DummyHasher hasher; |
| EXPECT_EQ(0x0000000000000000ull, |
| hasher.HashToUint64("\x00\x00\x00\x00\x00\x00\x00\x00")); |
| EXPECT_EQ(0xFFFFFFFFFFFFFFFFull, |
| hasher.HashToUint64("\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF")); |
| EXPECT_EQ(0x0123456789ABCDEFull, |
| hasher.HashToUint64("\x01\x23\x45\x67\x89\xAB\xCD\xEF")); |
| EXPECT_EQ(0xDEADBEEF00000000ull, |
| hasher.HashToUint64("\xDE\xAD\xBE\xEF")); |
| EXPECT_EQ(0x3133703133703133ull, |
| hasher.HashToUint64("\x31\x33\x70\x31\x33\x70" |
| "\x31\x33\x70\x31\x33\x70")); |
| } |
| |
| } // namespace |
| |
| } // namespace net_instaweb |