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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/db/fts/unicode/codepoints.h"
#include "mongo/unittest/unittest.h"
namespace mongo {
namespace unicode {
const char32_t maxCP = 0x1FFFFF; // Highest valid codepoint.
/**
* Above most of the arrays in this class are the UTF-32 character literals that correspond to the
* codepoints in the array.
*/
TEST(UnicodeCodepoints, Diacritics) {
// There are no character literals for combining marks.
const char32_t marks[] = {'^', '`', 0x0301, 0x0339, 0x1AB4, 0x1DC5, 0xA69D};
// const char32_t not_marks[] = {U'-', U'.', U'\'', U'*', U'm'};
const char32_t not_marks[] = {0x2D, 0x2E, 0x27, 0x2A, 0x6D};
for (auto cp : marks) {
ASSERT(codepointIsDiacritic(cp));
ASSERT_EQ(codepointRemoveDiacritics(cp), char32_t(0));
}
for (auto cp : not_marks) {
ASSERT(!codepointIsDiacritic(cp));
ASSERT_NE(codepointRemoveDiacritics(cp), char32_t(0));
}
}
TEST(UnicodeCodepoints, Delimiters) {
// const char32_t delimiters[] = {U'-', U'.', U'"', U'¿', U'«'};
const char32_t delimiters[] = {0x2D, 0x2E, 0x22, 0xBF, 0xAB};
// const char32_t not_delimiters[] = {U'a', U'ê', U'π', U'Ω', U'å'};
const char32_t not_delimiters[] = {0x61, 0xEA, 0x3C0, 0x3A9, 0xE5};
for (auto i = 0; i < 5; ++i) {
ASSERT(codepointIsDelimiter(delimiters[i], DelimiterListLanguage::kEnglish));
ASSERT(codepointIsDelimiter(delimiters[i], DelimiterListLanguage::kNotEnglish));
ASSERT_FALSE(codepointIsDelimiter(not_delimiters[i], DelimiterListLanguage::kEnglish));
ASSERT_FALSE(codepointIsDelimiter(not_delimiters[i], DelimiterListLanguage::kNotEnglish));
}
// Special case for English.
ASSERT(codepointIsDelimiter(0x27, DelimiterListLanguage::kNotEnglish));
ASSERT_FALSE(codepointIsDelimiter(0x27, DelimiterListLanguage::kEnglish));
}
TEST(UnicodeCodepoints, RemoveDiacritics) {
// const char32_t originals[] = {U'á', U'ê', U'ñ', U'å', U'ç'};
const char32_t originals[] = {0xE1, 0xEA, 0xF1, 0xE5, 0xE7};
// const char32_t clean[] = {U'a', U'e', U'n', U'a', U'c'};
const char32_t clean[] = {0x61, 0x65, 0x6E, 0x61, 0x63};
for (auto i = 0; i < 5; ++i) {
ASSERT_EQUALS(clean[i], codepointRemoveDiacritics(originals[i]));
}
for (char32_t cp = 0; cp <= maxCP; cp++) {
ASSERT_EQ(codepointRemoveDiacritics(cp) == 0, cp == 0 || codepointIsDiacritic(cp));
}
}
TEST(UnicodeCodepoints, ToLower) {
// const char32_t upper[] = {U'Á', U'Ê', U'Ñ', U'Å', U'Ç'};
const char32_t upper[] = {0xC1, 0xCA, 0xD1, 0xC5, 0xC7};
// const char32_t lower[] = {U'á', U'ê', U'ñ', U'å', U'ç'};
const char32_t lower[] = {0xE1, 0xEA, 0xF1, 0xE5, 0xE7};
for (auto i = 0; i < 5; ++i) {
ASSERT_EQUALS(lower[i], codepointToLower(upper[i]));
}
}
TEST(UnicodeCodepoints, ToLowerIsFixedPoint) {
for (char32_t cp = 0; cp <= maxCP; cp++) {
ASSERT_EQ(codepointToLower(cp), codepointToLower(codepointToLower(cp)));
}
}
TEST(UnicodeCodepoints, RemoveDiacriticsIsFixedPoint) {
for (char32_t cp = 0; cp <= maxCP; cp++) {
ASSERT_EQ(codepointRemoveDiacritics(cp),
codepointRemoveDiacritics(codepointRemoveDiacritics(cp)));
}
}
} // namespace unicode
} // namespace mongo
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