96 lines
2.9 KiB
C++
96 lines
2.9 KiB
C++
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//===---------- llvm/unittest/Support/DJBTest.cpp -------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/DJB.h"
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#include "llvm/ADT/Twine.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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TEST(DJBTest, caseFolding) {
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struct TestCase {
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StringLiteral One;
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StringLiteral Two;
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};
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static constexpr TestCase Tests[] = {
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{{"ASDF"}, {"asdf"}},
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{{"qWeR"}, {"QwEr"}},
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{{"qqqqqqqqqqqqqqqqqqqq"}, {"QQQQQQQQQQQQQQQQQQQQ"}},
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{{"I"}, {"i"}},
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// Latin Small Letter Dotless I
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{{u8"\u0130"}, {"i"}},
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// Latin Capital Letter I With Dot Above
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{{u8"\u0131"}, {"i"}},
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// Latin Capital Letter A With Grave
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{{u8"\u00c0"}, {u8"\u00e0"}},
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// Latin Capital Letter A With Macron
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{{u8"\u0100"}, {u8"\u0101"}},
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// Latin Capital Letter L With Acute
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{{u8"\u0139"}, {u8"\u013a"}},
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// Cyrillic Capital Letter Ie
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{{u8"\u0415"}, {u8"\u0435"}},
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// Latin Capital Letter A With Circumflex And Grave
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{{u8"\u1ea6"}, {u8"\u1ea7"}},
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// Kelvin Sign
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{{u8"\u212a"}, {u8"\u006b"}},
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// Glagolitic Capital Letter Chrivi
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{{u8"\u2c1d"}, {u8"\u2c4d"}},
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// Fullwidth Latin Capital Letter M
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{{u8"\uff2d"}, {u8"\uff4d"}},
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// Old Hungarian Capital Letter Ej
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{{u8"\U00010c92"}, {u8"\U00010cd2"}},
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};
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for (const TestCase &T : Tests) {
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SCOPED_TRACE("Comparing '" + T.One + "' and '" + T.Two + "'");
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EXPECT_EQ(caseFoldingDjbHash(T.One), caseFoldingDjbHash(T.Two));
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}
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}
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TEST(DJBTest, knownValuesLowerCase) {
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struct TestCase {
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StringLiteral Text;
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uint32_t Hash;
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};
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static constexpr TestCase Tests[] = {
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{{""}, 5381u},
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{{"f"}, 177675u},
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{{"fo"}, 5863386u},
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{{"foo"}, 193491849u},
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{{"foob"}, 2090263819u},
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{{"fooba"}, 259229388u},
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{{"foobar"}, 4259602622u},
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{{"pneumonoultramicroscopicsilicovolcanoconiosis"}, 3999417781u},
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};
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for (const TestCase &T : Tests) {
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SCOPED_TRACE("Text: '" + T.Text + "'");
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EXPECT_EQ(T.Hash, djbHash(T.Text));
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EXPECT_EQ(T.Hash, caseFoldingDjbHash(T.Text));
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EXPECT_EQ(T.Hash, caseFoldingDjbHash(T.Text.upper()));
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}
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}
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TEST(DJBTest, knownValuesUnicode) {
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EXPECT_EQ(5866553u, djbHash(u8"\u0130"));
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EXPECT_EQ(177678u, caseFoldingDjbHash(u8"\u0130"));
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EXPECT_EQ(
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1302161417u,
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djbHash(
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u8"\u0130\u0131\u00c0\u00e0\u0100\u0101\u0139\u013a\u0415\u0435\u1ea6"
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u8"\u1ea7\u212a\u006b\u2c1d\u2c4d\uff2d\uff4d\U00010c92\U00010cd2"));
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EXPECT_EQ(
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1145571043u,
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caseFoldingDjbHash(
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u8"\u0130\u0131\u00c0\u00e0\u0100\u0101\u0139\u013a\u0415\u0435\u1ea6"
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u8"\u1ea7\u212a\u006b\u2c1d\u2c4d\uff2d\uff4d\U00010c92\U00010cd2"));
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}
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