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| 1 /* | 1 /* |
| 2 * Copyright (C) 2013 Apple Inc. All rights reserved. | 2 * Copyright (C) 2013 Apple Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
| 11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
| 12 * | 12 * |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' | 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS | 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| 23 * THE POSSIBILITY OF SUCH DAMAGE. | 23 * THE POSSIBILITY OF SUCH DAMAGE. |
| 24 */ | 24 */ |
| 25 | 25 |
| 26 #include "config.h" | 26 #include "config.h" |
| 27 #include "wtf/StringHasher.h" |
| 27 | 28 |
| 28 #include "wtf/StringHasher.h" | |
| 29 #include <gtest/gtest.h> | 29 #include <gtest/gtest.h> |
| 30 | 30 |
| 31 namespace WTF { |
| 32 |
| 31 namespace { | 33 namespace { |
| 32 | 34 |
| 33 static const LChar nullLChars[2] = { 0, 0 }; | 35 const LChar nullLChars[2] = { 0, 0 }; |
| 34 static const UChar nullUChars[2] = { 0, 0 }; | 36 const UChar nullUChars[2] = { 0, 0 }; |
| 35 | 37 |
| 36 static const unsigned emptyStringHash = 0x4EC889EU; | 38 const unsigned emptyStringHash = 0x4EC889EU; |
| 37 static const unsigned singleNullCharacterHash = 0x3D3ABF44U; | 39 const unsigned singleNullCharacterHash = 0x3D3ABF44U; |
| 38 | 40 |
| 39 static const LChar testALChars[6] = { 0x41, 0x95, 0xFF, 0x50, 0x01, 0 }; | 41 const LChar testALChars[6] = { 0x41, 0x95, 0xFF, 0x50, 0x01, 0 }; |
| 40 static const UChar testAUChars[6] = { 0x41, 0x95, 0xFF, 0x50, 0x01, 0 }; | 42 const UChar testAUChars[6] = { 0x41, 0x95, 0xFF, 0x50, 0x01, 0 }; |
| 41 static const UChar testBUChars[6] = { 0x41, 0x95, 0xFFFF, 0x1080, 0x01, 0 }; | 43 const UChar testBUChars[6] = { 0x41, 0x95, 0xFFFF, 0x1080, 0x01, 0 }; |
| 42 | 44 |
| 43 static const unsigned testAHash1 = 0xEA32B004; | 45 const unsigned testAHash1 = 0xEA32B004; |
| 44 static const unsigned testAHash2 = 0x93F0F71E; | 46 const unsigned testAHash2 = 0x93F0F71E; |
| 45 static const unsigned testAHash3 = 0xCB609EB1; | 47 const unsigned testAHash3 = 0xCB609EB1; |
| 46 static const unsigned testAHash4 = 0x7984A706; | 48 const unsigned testAHash4 = 0x7984A706; |
| 47 static const unsigned testAHash5 = 0x0427561F; | 49 const unsigned testAHash5 = 0x0427561F; |
| 48 | 50 |
| 49 static const unsigned testBHash1 = 0xEA32B004; | 51 const unsigned testBHash1 = 0xEA32B004; |
| 50 static const unsigned testBHash2 = 0x93F0F71E; | 52 const unsigned testBHash2 = 0x93F0F71E; |
| 51 static const unsigned testBHash3 = 0x59EB1B2C; | 53 const unsigned testBHash3 = 0x59EB1B2C; |
| 52 static const unsigned testBHash4 = 0xA7BCCC0A; | 54 const unsigned testBHash4 = 0xA7BCCC0A; |
| 53 static const unsigned testBHash5 = 0x79201649; | 55 const unsigned testBHash5 = 0x79201649; |
| 56 |
| 57 } // anonymous namespace |
| 54 | 58 |
| 55 TEST(StringHasherTest, StringHasher) | 59 TEST(StringHasherTest, StringHasher) |
| 56 { | 60 { |
| 57 StringHasher hasher; | 61 StringHasher hasher; |
| 58 | 62 |
| 59 // The initial state of the hasher. | 63 // The initial state of the hasher. |
| 60 EXPECT_EQ(emptyStringHash, hasher.hash()); | 64 EXPECT_EQ(emptyStringHash, hasher.hash()); |
| 61 EXPECT_EQ(emptyStringHash & 0xFFFFFF, hasher.hashWithTop8BitsMasked()); | 65 EXPECT_EQ(emptyStringHash & 0xFFFFFF, hasher.hashWithTop8BitsMasked()); |
| 62 } | 66 } |
| 63 | 67 |
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| 399 | 403 |
| 400 EXPECT_EQ(singleNullCharacterHash & 0xFFFFFF, StringHasher::hashMemory(nullU
Chars, 2)); | 404 EXPECT_EQ(singleNullCharacterHash & 0xFFFFFF, StringHasher::hashMemory(nullU
Chars, 2)); |
| 401 EXPECT_EQ(singleNullCharacterHash & 0xFFFFFF, StringHasher::hashMemory<2>(nu
llUChars)); | 405 EXPECT_EQ(singleNullCharacterHash & 0xFFFFFF, StringHasher::hashMemory<2>(nu
llUChars)); |
| 402 | 406 |
| 403 EXPECT_EQ(testAHash5 & 0xFFFFFF, StringHasher::hashMemory(testAUChars, 10)); | 407 EXPECT_EQ(testAHash5 & 0xFFFFFF, StringHasher::hashMemory(testAUChars, 10)); |
| 404 EXPECT_EQ(testAHash5 & 0xFFFFFF, StringHasher::hashMemory<10>(testAUChars)); | 408 EXPECT_EQ(testAHash5 & 0xFFFFFF, StringHasher::hashMemory<10>(testAUChars)); |
| 405 EXPECT_EQ(testBHash5 & 0xFFFFFF, StringHasher::hashMemory(testBUChars, 10)); | 409 EXPECT_EQ(testBHash5 & 0xFFFFFF, StringHasher::hashMemory(testBUChars, 10)); |
| 406 EXPECT_EQ(testBHash5 & 0xFFFFFF, StringHasher::hashMemory<10>(testBUChars)); | 410 EXPECT_EQ(testBHash5 & 0xFFFFFF, StringHasher::hashMemory<10>(testBUChars)); |
| 407 } | 411 } |
| 408 | 412 |
| 409 } // namespace | 413 } // namespace WTF |
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