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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromeos/ash/components/string_matching/term_break_iterator.h"
#include "base/strings/utf_string_conversions.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ash::string_matching {
TEST(TermBreakIteratorTest, EmptyWord) {
std::u16string empty;
TermBreakIterator iter(empty);
EXPECT_FALSE(iter.Advance());
}
TEST(TermBreakIteratorTest, Simple) {
std::u16string word(u"simple");
TermBreakIterator iter(word);
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"simple", iter.GetCurrentTerm());
EXPECT_FALSE(iter.Advance()); // Test unexpected advance after end.
}
TEST(TermBreakIteratorTest, CamelCase) {
std::u16string word(u"CamelCase");
TermBreakIterator iter(word);
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"Camel", iter.GetCurrentTerm());
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"Case", iter.GetCurrentTerm());
EXPECT_FALSE(iter.Advance()); // Test unexpected advance after end.
}
TEST(TermBreakIteratorTest, LowerToUpper) {
std::u16string word(u"lowerToUpper");
TermBreakIterator iter(word);
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"lower", iter.GetCurrentTerm());
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"To", iter.GetCurrentTerm());
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"Upper", iter.GetCurrentTerm());
EXPECT_FALSE(iter.Advance()); // Test unexpected advance after end.
}
TEST(TermBreakIteratorTest, AlphaNumber) {
std::u16string word(u"Chromium26.0.0.0");
TermBreakIterator iter(word);
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"Chromium", iter.GetCurrentTerm());
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"26.0.0.0", iter.GetCurrentTerm());
EXPECT_FALSE(iter.Advance()); // Test unexpected advance after end.
}
TEST(TermBreakIteratorTest, StartsWithNumber) {
std::u16string word(u"123startWithNumber");
TermBreakIterator iter(word);
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"123", iter.GetCurrentTerm());
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"start", iter.GetCurrentTerm());
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"With", iter.GetCurrentTerm());
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"Number", iter.GetCurrentTerm());
EXPECT_FALSE(iter.Advance()); // Test unexpected advance after end.
}
TEST(TermBreakIteratorTest, CaseAndNoCase) {
// "English" + two Chinese chars U+4E2D U+6587 + "Word"
std::u16string word(u"English中文Word");
TermBreakIterator iter(word);
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"English", iter.GetCurrentTerm());
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"中文", iter.GetCurrentTerm());
EXPECT_TRUE(iter.Advance());
EXPECT_EQ(u"Word", iter.GetCurrentTerm());
EXPECT_FALSE(iter.Advance()); // Test unexpected advance after end.
}
} // namespace ash::string_matching
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