1 //===---------- llvm/unittest/Support/DJBTest.cpp -------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "llvm/Support/DJB.h" 11 #include "llvm/ADT/Twine.h" 12 #include "gtest/gtest.h" 13 14 using namespace llvm; 15 16 TEST(DJBTest, caseFolding) { 17 struct TestCase { 18 StringLiteral One; 19 StringLiteral Two; 20 }; 21 22 static constexpr TestCase Tests[] = { 23 {"ASDF", "asdf"}, 24 {"qWeR", "QwEr"}, 25 {"qqqqqqqqqqqqqqqqqqqq", "QQQQQQQQQQQQQQQQQQQQ"}, 26 27 {"I", "i"}, 28 // Latin Small Letter Dotless I 29 {u8"\u0130", "i"}, 30 // Latin Capital Letter I With Dot Above 31 {u8"\u0131", "i"}, 32 33 // Latin Capital Letter A With Grave 34 {u8"\u00c0", u8"\u00e0"}, 35 // Latin Capital Letter A With Macron 36 {u8"\u0100", u8"\u0101"}, 37 // Latin Capital Letter L With Acute 38 {u8"\u0139", u8"\u013a"}, 39 // Cyrillic Capital Letter Ie 40 {u8"\u0415", u8"\u0435"}, 41 // Latin Capital Letter A With Circumflex And Grave 42 {u8"\u1ea6", u8"\u1ea7"}, 43 // Kelvin Sign 44 {u8"\u212a", u8"\u006b"}, 45 // Glagolitic Capital Letter Chrivi 46 {u8"\u2c1d", u8"\u2c4d"}, 47 // Fullwidth Latin Capital Letter M 48 {u8"\uff2d", u8"\uff4d"}, 49 // Old Hungarian Capital Letter Ej 50 {u8"\U00010c92", u8"\U00010cd2"}, 51 }; 52 53 for (const TestCase &T : Tests) { 54 SCOPED_TRACE("Comparing '" + T.One + "' and '" + T.Two + "'"); 55 EXPECT_EQ(caseFoldingDjbHash(T.One), caseFoldingDjbHash(T.Two)); 56 } 57 } 58 59 TEST(DJBTest, knownValuesLowerCase) { 60 struct TestCase { 61 StringLiteral Text; 62 uint32_t Hash; 63 }; 64 static constexpr TestCase Tests[] = { 65 {"", 5381u}, 66 {"f", 177675u}, 67 {"fo", 5863386u}, 68 {"foo", 193491849u}, 69 {"foob", 2090263819u}, 70 {"fooba", 259229388u}, 71 {"foobar", 4259602622u}, 72 {"pneumonoultramicroscopicsilicovolcanoconiosis", 3999417781u}, 73 }; 74 75 for (const TestCase &T : Tests) { 76 SCOPED_TRACE("Text: '" + T.Text + "'"); 77 EXPECT_EQ(T.Hash, djbHash(T.Text)); 78 EXPECT_EQ(T.Hash, caseFoldingDjbHash(T.Text)); 79 EXPECT_EQ(T.Hash, caseFoldingDjbHash(T.Text.upper())); 80 } 81 } 82 83 TEST(DJBTest, knownValuesUnicode) { 84 EXPECT_EQ( 85 2326183139u, 86 caseFoldingDjbHash( 87 u8"\u0130\u0131\u00c0\u00e0\u0100\u0101\u0139\u013a\u0415\u0435\u1ea6" 88 u8"\u1ea7\u212a\u006b\u2c1d\u2c4d\uff2d\uff4d\U00010c92\U00010cd2")); 89 } 90