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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stddef.h>
#include <string>
#include <vector>
#include "base/i18n/break_iterator.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "components/omnibox/browser/tailored_word_break_iterator.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
struct Piece {
std::u16string string;
bool is_word;
};
void VerifyBreaks(std::u16string str, std::vector<Piece> expected_pieces) {
TailoredWordBreakIterator iter(str);
ASSERT_TRUE(iter.Init());
for (size_t i = 0; i < expected_pieces.size(); ++i) {
ASSERT_TRUE(iter.Advance()) << base::StringPrintf(
"Expected %zu pieces; found %zu pieces.\n", expected_pieces.size(), i);
EXPECT_TRUE(iter.IsWord() == expected_pieces[i].is_word &&
iter.GetString() == expected_pieces[i].string)
<< base::StringPrintf(
"Expected {%s, %d}; found {%s, %d}.\n",
base::UTF16ToUTF8(expected_pieces[i].string).c_str(),
expected_pieces[i].is_word,
base::UTF16ToUTF8(iter.GetString()).c_str(), iter.IsWord());
}
iter.Advance();
ASSERT_EQ(iter.pos(), base::i18n::BreakIterator::npos) << base::StringPrintf(
"Expected %zu pieces; found more pieces; found {%s, %d}.\n",
expected_pieces.size(), base::UTF16ToUTF8(iter.GetString()).c_str(),
iter.IsWord());
EXPECT_FALSE(iter.IsWord());
EXPECT_FALSE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
}
} // namespace
TEST(TailoredWordBreakIterator, BreakWord) {
VerifyBreaks(u"_foo_bar!_\npouet_boom", {
{u"_", false},
{u"foo", true},
{u"_", false},
{u"bar", true},
{u"!", false},
{u"_", false},
{u"\n", false},
{u"pouet", true},
{u"_", false},
{u"boom", true},
});
}
TEST(TailoredWordBreakIterator, TrailingUnderscore) {
VerifyBreaks(u"_foo_bar_", {
{u"_", false},
{u"foo", true},
{u"_", false},
{u"bar", true},
{u"_", false},
});
}
TEST(TailoredWordBreakIterator, RepeatingUnderscore) {
VerifyBreaks(u"Viktor...Ambartsumian", {
{u"Viktor", true},
{u".", false},
{u".", false},
{u".", false},
{u"Ambartsumian", true},
});
VerifyBreaks(u"Viktor___Ambartsumian", {
{u"Viktor", true},
{u"_", false},
{u"_", false},
{u"_", false},
{u"Ambartsumian", true},
});
VerifyBreaks(u"Viktor_..///.__Ambartsumian", {
{u"Viktor", true},
{u"_", false},
{u".", false},
{u".", false},
{u"/", false},
{u"/", false},
{u"/", false},
{u".", false},
{u"_", false},
{u"_", false},
{u"Ambartsumian", true},
});
}
TEST(TailoredWordBreakIterator, Numerics) {
VerifyBreaks(u"chr0m3 15 aw350m3", {
{u"chr", true},
{u"0", true},
{u"m", true},
{u"3", true},
{u" ", false},
{u"15", true},
{u" ", false},
{u"aw", true},
{u"350", true},
{u"m", true},
{u"3", true},
});
}
TEST(TailoredWordBreakIterator, NumericsAndUnderscores) {
VerifyBreaks(u"chr0m3__15__aw350m3", {
{u"chr", true},
{u"0", true},
{u"m", true},
{u"3", true},
{u"_", false},
{u"_", false},
{u"15", true},
{u"_", false},
{u"_", false},
{u"aw", true},
{u"350", true},
{u"m", true},
{u"3", true},
});
VerifyBreaks(u"Viktor Ambartsumian_is__anAwesome99_99Astrophysicist!!",
{
{u"Viktor", true},
{u" ", false},
{u"Ambartsumian", true},
{u"_", false},
{u"is", true},
{u"_", false},
{u"_", false},
{u"anAwesome", true},
{u"99", true},
{u"_", false},
{u"99", true},
{u"Astrophysicist", true},
{u"!", false},
{u"!", false},
});
}
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