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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/i18n/message_formatter.h"
#include <memory>
#include "base/i18n/rtl.h"
#include "base/i18n/unicodestring.h"
#include "base/strings/string_piece.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "base/time/time.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/icu/source/common/unicode/unistr.h"
#include "third_party/icu/source/i18n/unicode/datefmt.h"
#include "third_party/icu/source/i18n/unicode/msgfmt.h"
typedef testing::Test MessageFormatterTest;
namespace base {
namespace i18n {
class MessageFormatterTest : public testing::Test {
protected:
MessageFormatterTest() {
original_locale_ = GetConfiguredLocale();
SetICUDefaultLocale("en-US");
}
~MessageFormatterTest() override {
SetICUDefaultLocale(original_locale_);
}
private:
std::string original_locale_;
};
namespace {
void AppendFormattedDateTime(const std::unique_ptr<icu::DateFormat>& df,
const Time& now,
std::u16string* result) {
icu::UnicodeString formatted;
result->append(UnicodeStringToString16(df->format(
static_cast<UDate>(now.InMillisecondsFSinceUnixEpoch()), formatted)));
}
} // namespace
TEST_F(MessageFormatterTest, PluralNamedArgs) {
const std::u16string pattern =
u"{num_people, plural, "
u"=0 {I met nobody in {place}.}"
u"=1 {I met a person in {place}.}"
u"other {I met # people in {place}.}}";
std::u16string result = MessageFormatter::FormatWithNamedArgs(
pattern, "num_people", 0, "place", "Paris");
EXPECT_EQ(u"I met nobody in Paris.", result);
result = MessageFormatter::FormatWithNamedArgs(pattern, "num_people", 1,
"place", "Paris");
EXPECT_EQ(u"I met a person in Paris.", result);
result = MessageFormatter::FormatWithNamedArgs(pattern, "num_people", 5,
"place", "Paris");
EXPECT_EQ(u"I met 5 people in Paris.", result);
}
TEST_F(MessageFormatterTest, PluralNamedArgsWithOffset) {
const std::u16string pattern =
u"{num_people, plural, offset:1 "
u"=0 {I met nobody in {place}.}"
u"=1 {I met {person} in {place}.}"
u"=2 {I met {person} and one other person in {place}.}"
u"=13 {I met {person} and a dozen other people in {place}.}"
u"other {I met {person} and # other people in {place}.}}";
std::u16string result = MessageFormatter::FormatWithNamedArgs(
pattern, "num_people", 0, "place", "Paris");
EXPECT_EQ(u"I met nobody in Paris.", result);
// {person} is ignored if {num_people} is 0.
result = MessageFormatter::FormatWithNamedArgs(
pattern, "num_people", 0, "place", "Paris", "person", "Peter");
EXPECT_EQ(u"I met nobody in Paris.", result);
result = MessageFormatter::FormatWithNamedArgs(
pattern, "num_people", 1, "place", "Paris", "person", "Peter");
EXPECT_EQ(u"I met Peter in Paris.", result);
result = MessageFormatter::FormatWithNamedArgs(
pattern, "num_people", 2, "place", "Paris", "person", "Peter");
EXPECT_EQ(u"I met Peter and one other person in Paris.", result);
result = MessageFormatter::FormatWithNamedArgs(
pattern, "num_people", 13, "place", "Paris", "person", "Peter");
EXPECT_EQ(u"I met Peter and a dozen other people in Paris.", result);
result = MessageFormatter::FormatWithNamedArgs(
pattern, "num_people", 50, "place", "Paris", "person", "Peter");
EXPECT_EQ(u"I met Peter and 49 other people in Paris.", result);
}
TEST_F(MessageFormatterTest, PluralNumberedArgs) {
const std::u16string pattern =
u"{1, plural, "
u"=1 {The cert for {0} expired yesterday.}"
u"=7 {The cert for {0} expired a week ago.}"
u"other {The cert for {0} expired # days ago.}}";
std::u16string result =
MessageFormatter::FormatWithNumberedArgs(pattern, "example.com", 1);
EXPECT_EQ(u"The cert for example.com expired yesterday.", result);
result = MessageFormatter::FormatWithNumberedArgs(pattern, "example.com", 7);
EXPECT_EQ(u"The cert for example.com expired a week ago.", result);
result = MessageFormatter::FormatWithNumberedArgs(pattern, "example.com", 15);
EXPECT_EQ(u"The cert for example.com expired 15 days ago.", result);
}
TEST_F(MessageFormatterTest, PluralNumberedArgsWithDate) {
const std::u16string pattern =
u"{1, plural, "
u"=1 {The cert for {0} expired yesterday. Today is {2,date,full}}"
u"other {The cert for {0} expired # days ago. Today is {2,date,full}}}";
base::Time now = base::Time::Now();
using icu::DateFormat;
std::unique_ptr<DateFormat> df(
DateFormat::createDateInstance(DateFormat::FULL));
std::u16string second_sentence = u" Today is ";
AppendFormattedDateTime(df, now, &second_sentence);
std::u16string result =
MessageFormatter::FormatWithNumberedArgs(pattern, "example.com", 1, now);
EXPECT_EQ(u"The cert for example.com expired yesterday." + second_sentence,
result);
result =
MessageFormatter::FormatWithNumberedArgs(pattern, "example.com", 15, now);
EXPECT_EQ(u"The cert for example.com expired 15 days ago." + second_sentence,
result);
}
TEST_F(MessageFormatterTest, DateTimeAndNumber) {
// Note that using 'mph' for all locales is not a good i18n practice.
const std::u16string pattern =
u"At {0,time, short} on {0,date, medium}, "
u"there was {1} at building {2,number,integer}. "
u"The speed of the wind was {3,number,###.#} mph.";
using icu::DateFormat;
std::unique_ptr<DateFormat> tf(
DateFormat::createTimeInstance(DateFormat::SHORT));
std::unique_ptr<DateFormat> df(
DateFormat::createDateInstance(DateFormat::MEDIUM));
base::Time now = base::Time::Now();
std::u16string expected = u"At ";
AppendFormattedDateTime(tf, now, &expected);
expected.append(u" on ");
AppendFormattedDateTime(df, now, &expected);
expected.append(
u", there was an explosion at building 3. "
"The speed of the wind was 37.4 mph.");
EXPECT_EQ(expected, MessageFormatter::FormatWithNumberedArgs(
pattern, now, "an explosion", 3, 37.413));
}
TEST_F(MessageFormatterTest, SelectorSingleOrMultiple) {
const std::u16string pattern =
u"{0, select,"
u"single {Select a file to upload.}"
u"multiple {Select files to upload.}"
u"other {UNUSED}}";
std::u16string result =
MessageFormatter::FormatWithNumberedArgs(pattern, "single");
EXPECT_EQ(u"Select a file to upload.", result);
result = MessageFormatter::FormatWithNumberedArgs(pattern, "multiple");
EXPECT_EQ(u"Select files to upload.", result);
// fallback if a parameter is not selectors specified in the message pattern.
result = MessageFormatter::FormatWithNumberedArgs(pattern, "foobar");
EXPECT_EQ(u"UNUSED", result);
}
} // namespace i18n
} // namespace base
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