390 lines
16 KiB
C++
390 lines
16 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include "ICUTestBase.h"
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#include "UnicodeUtils.h"
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#include <minikin/WordBreaker.h>
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#include <unicode/locid.h>
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#include <unicode/uclean.h>
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#include <unicode/udata.h>
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#define LOG_TAG "Minikin"
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#include <cutils/log.h>
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#ifndef NELEM
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#define NELEM(x) ((sizeof(x) / sizeof((x)[0])))
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#endif
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#define UTF16(codepoint) U16_LEAD(codepoint), U16_TRAIL(codepoint)
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using namespace android;
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typedef ICUTestBase WordBreakerTest;
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TEST_F(WordBreakerTest, basic) {
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uint16_t buf[] = {'h', 'e', 'l', 'l' ,'o', ' ', 'w', 'o', 'r', 'l', 'd'};
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ(6, breaker.next()); // after "hello "
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EXPECT_EQ(0, breaker.wordStart()); // "hello"
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EXPECT_EQ(5, breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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EXPECT_EQ(6, breaker.current());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
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EXPECT_EQ(6, breaker.wordStart()); // "world"
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EXPECT_EQ(11, breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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EXPECT_EQ(11, breaker.current());
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}
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TEST_F(WordBreakerTest, softHyphen) {
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uint16_t buf[] = {'h', 'e', 'l', 0x00AD, 'l' ,'o', ' ', 'w', 'o', 'r', 'l', 'd'};
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ(7, breaker.next()); // after "hel{SOFT HYPHEN}lo "
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EXPECT_EQ(0, breaker.wordStart()); // "hel{SOFT HYPHEN}lo"
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EXPECT_EQ(6, breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
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EXPECT_EQ(7, breaker.wordStart()); // "world"
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EXPECT_EQ(12, breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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}
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TEST_F(WordBreakerTest, postfixAndPrefix) {
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uint16_t buf[] = {'U', 'S', 0x00A2, ' ', 'J', 'P', 0x00A5}; // US¢ JP¥
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ(4, breaker.next()); // after CENT SIGN
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EXPECT_EQ(0, breaker.wordStart()); // "US¢"
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EXPECT_EQ(3, breaker.wordEnd());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end of string
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EXPECT_EQ(4, breaker.wordStart()); // "JP¥"
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.wordEnd());
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}
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TEST_F(WordBreakerTest, MyanmarKinzi) {
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uint16_t buf[] = {0x1004, 0x103A, 0x1039, 0x1000, 0x102C}; // NGA, ASAT, VIRAMA, KA, UU
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WordBreaker breaker;
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icu::Locale burmese("my");
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breaker.setLocale(burmese);
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end of string
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EXPECT_EQ(0, breaker.wordStart());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.wordEnd());
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}
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TEST_F(WordBreakerTest, zwjEmojiSequences) {
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uint16_t buf[] = {
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// man + zwj + heart + zwj + man
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UTF16(0x1F468), 0x200D, 0x2764, 0x200D, UTF16(0x1F468),
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// woman + zwj + heart + zwj + kiss mark + zwj + woman
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UTF16(0x1F469), 0x200D, 0x2764, 0x200D, UTF16(0x1F48B), 0x200D, UTF16(0x1F469),
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// eye + zwj + left speech bubble
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UTF16(0x1F441), 0x200D, UTF16(0x1F5E8),
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// CAT FACE + zwj + BUST IN SILHOUETTE
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UTF16(0x1F431), 0x200D, UTF16(0x1F464),
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};
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ(7, breaker.next()); // after man + zwj + heart + zwj + man
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EXPECT_EQ(0, breaker.wordStart());
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EXPECT_EQ(7, breaker.wordEnd());
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EXPECT_EQ(17, breaker.next()); // after woman + zwj + heart + zwj + woman
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EXPECT_EQ(7, breaker.wordStart());
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EXPECT_EQ(17, breaker.wordEnd());
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EXPECT_EQ(22, breaker.next()); // after eye + zwj + left speech bubble
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EXPECT_EQ(17, breaker.wordStart());
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EXPECT_EQ(22, breaker.wordEnd());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
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EXPECT_EQ(22, breaker.wordStart());
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EXPECT_EQ(27, breaker.wordEnd());
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}
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TEST_F(WordBreakerTest, emojiWithModifier) {
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uint16_t buf[] = {
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UTF16(0x1F466), UTF16(0x1F3FB), // boy + type 1-2 fitzpatrick modifier
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0x270C, 0xFE0F, UTF16(0x1F3FF) // victory hand + emoji style + type 6 fitzpatrick modifier
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};
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ(4, breaker.next()); // after man + type 6 fitzpatrick modifier
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EXPECT_EQ(0, breaker.wordStart());
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EXPECT_EQ(4, breaker.wordEnd());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
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EXPECT_EQ(4, breaker.wordStart());
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EXPECT_EQ(8, breaker.wordEnd());
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}
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TEST_F(WordBreakerTest, punct) {
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uint16_t buf[] = {0x00A1, 0x00A1, 'h', 'e', 'l', 'l' ,'o', ',', ' ', 'w', 'o', 'r', 'l', 'd',
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'!', '!'};
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ(9, breaker.next()); // after "¡¡hello, "
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EXPECT_EQ(2, breaker.wordStart()); // "hello"
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EXPECT_EQ(7, breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
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EXPECT_EQ(9, breaker.wordStart()); // "world"
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EXPECT_EQ(14, breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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}
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TEST_F(WordBreakerTest, email) {
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uint16_t buf[] = {'f', 'o', 'o', '@', 'e', 'x', 'a', 'm', 'p', 'l', 'e', '.', 'c', 'o', 'm',
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' ', 'x'};
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ(11, breaker.next()); // after "foo@example"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(16, breaker.next()); // after ".com "
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
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EXPECT_EQ(16, breaker.wordStart()); // "x"
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EXPECT_EQ(17, breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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}
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TEST_F(WordBreakerTest, mailto) {
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uint16_t buf[] = {'m', 'a', 'i', 'l', 't', 'o', ':', 'f', 'o', 'o', '@',
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'e', 'x', 'a', 'm', 'p', 'l', 'e', '.', 'c', 'o', 'm', ' ', 'x'};
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ(7, breaker.next()); // after "mailto:"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(18, breaker.next()); // after "foo@example"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(23, breaker.next()); // after ".com "
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
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EXPECT_EQ(23, breaker.wordStart()); // "x"
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EXPECT_EQ(24, breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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}
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// The current logic always places a line break after a detected email address or URL
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// and an immediately following non-ASCII character.
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TEST_F(WordBreakerTest, emailNonAscii) {
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uint16_t buf[] = {'f', 'o', 'o', '@', 'e', 'x', 'a', 'm', 'p', 'l', 'e', '.', 'c', 'o', 'm',
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0x4E00};
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ(11, breaker.next()); // after "foo@example"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(15, breaker.next()); // after ".com"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
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EXPECT_EQ(15, breaker.wordStart()); // "一"
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EXPECT_EQ(16, breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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}
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TEST_F(WordBreakerTest, emailCombining) {
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uint16_t buf[] = {'f', 'o', 'o', '@', 'e', 'x', 'a', 'm', 'p', 'l', 'e', '.', 'c', 'o', 'm',
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0x0303, ' ', 'x'};
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ(11, breaker.next()); // after "foo@example"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(17, breaker.next()); // after ".com̃ "
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
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EXPECT_EQ(17, breaker.wordStart()); // "x"
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EXPECT_EQ(18, breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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}
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TEST_F(WordBreakerTest, lonelyAt) {
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uint16_t buf[] = {'a', ' ', '@', ' ', 'b'};
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ(2, breaker.next()); // after "a "
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EXPECT_EQ(0, breaker.wordStart()); // "a"
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EXPECT_EQ(1, breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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EXPECT_EQ(4, breaker.next()); // after "@ "
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
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EXPECT_EQ(4, breaker.wordStart()); // "b"
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EXPECT_EQ(5, breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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}
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TEST_F(WordBreakerTest, url) {
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uint16_t buf[] = {'h', 't', 't', 'p', ':', '/', '/', 'e', 'x', 'a', 'm', 'p', 'l', 'e',
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'.', 'c', 'o', 'm', ' ', 'x'};
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ(5, breaker.next()); // after "http:"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(7, breaker.next()); // after "//"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(14, breaker.next()); // after "example"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(19, breaker.next()); // after ".com "
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
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EXPECT_EQ(19, breaker.wordStart()); // "x"
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EXPECT_EQ(20, breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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}
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// Breaks according to section 14.12 of Chicago Manual of Style, *URLs or DOIs and line breaks*
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TEST_F(WordBreakerTest, urlBreakChars) {
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uint16_t buf[] = {'h', 't', 't', 'p', ':', '/', '/', 'a', '.', 'b', '/', '~', 'c', ',', 'd',
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'-', 'e', '?', 'f', '=', 'g', '&', 'h', '#', 'i', '%', 'j', '_', 'k', '/', 'l'};
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ(5, breaker.next()); // after "http:"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(7, breaker.next()); // after "//"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(8, breaker.next()); // after "a"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(10, breaker.next()); // after ".b"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(11, breaker.next()); // after "/"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(13, breaker.next()); // after "~c"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(15, breaker.next()); // after ",d"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(17, breaker.next()); // after "-e"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(19, breaker.next()); // after "?f"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(20, breaker.next()); // after "="
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(21, breaker.next()); // after "g"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(22, breaker.next()); // after "&"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(23, breaker.next()); // after "h"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(25, breaker.next()); // after "#i"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(27, breaker.next()); // after "%j"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ(29, breaker.next()); // after "_k"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(1, breaker.breakBadness());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(0, breaker.breakBadness());
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}
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TEST_F(WordBreakerTest, urlNoHyphenBreak) {
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uint16_t buf[] = {'h', 't', 't', 'p', ':', '/', '/', 'a', '-', '/', 'b'};
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
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EXPECT_EQ(0, breaker.current());
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EXPECT_EQ(5, breaker.next()); // after "http:"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(7, breaker.next()); // after "//"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ(8, breaker.next()); // after "a"
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
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EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
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}
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TEST_F(WordBreakerTest, urlEndsWithSlash) {
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uint16_t buf[] = {'h', 't', 't', 'p', ':', '/', '/', 'a', '/'};
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WordBreaker breaker;
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breaker.setLocale(icu::Locale::getEnglish());
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breaker.setText(buf, NELEM(buf));
|
|
EXPECT_EQ(0, breaker.current());
|
|
EXPECT_EQ(5, breaker.next()); // after "http:"
|
|
EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
|
|
EXPECT_EQ(7, breaker.next()); // after "//"
|
|
EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
|
|
EXPECT_EQ(8, breaker.next()); // after "a"
|
|
EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
|
|
EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
|
|
EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
|
|
}
|
|
|
|
TEST_F(WordBreakerTest, emailStartsWithSlash) {
|
|
uint16_t buf[] = {'/', 'a', '@', 'b'};
|
|
WordBreaker breaker;
|
|
breaker.setLocale(icu::Locale::getEnglish());
|
|
breaker.setText(buf, NELEM(buf));
|
|
EXPECT_EQ(0, breaker.current());
|
|
EXPECT_EQ((ssize_t)NELEM(buf), breaker.next()); // end
|
|
EXPECT_TRUE(breaker.wordStart() >= breaker.wordEnd());
|
|
}
|