/*
* Copyright (c) 2002-2012 Alibaba Group Holding Limited.
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.alibaba.citrus.util.i18n;
import static com.alibaba.citrus.test.TestUtil.*;
import static org.junit.Assert.*;
import java.nio.charset.Charset;
import java.nio.charset.IllegalCharsetNameException;
import java.nio.charset.UnsupportedCharsetException;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import com.alibaba.citrus.util.i18n.LocaleUtil.Notifier;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
/**
* 测试<code>LocaleUtil</code>。
*
* @author Michael Zhou
*/
public class LocaleUtilTests {
private Locale systemLocale;
private String systemCharset;
@Before
public void init() {
systemLocale = Locale.getDefault();
systemCharset = Charset.defaultCharset().name();
}
@After
public void destroy() {
LocaleUtil.resetDefault();
LocaleUtil.resetContext();
}
@Test
public void isLocaleSupported() {
assertTrue(LocaleUtil.isLocaleSupported(LocaleUtil.parseLocale("zh")));
assertTrue(LocaleUtil.isLocaleSupported(LocaleUtil.parseLocale("zh_CN")));
assertTrue(LocaleUtil.isLocaleSupported(LocaleUtil.parseLocale("zh_CN_aa")));
assertFalse(LocaleUtil.isLocaleSupported(LocaleUtil.parseLocale("aa")));
assertFalse(LocaleUtil.isLocaleSupported(LocaleUtil.parseLocale("aa_bb")));
assertFalse(LocaleUtil.isLocaleSupported(LocaleUtil.parseLocale("aa_bb_cc")));
}
@Test
public void isCharsetSupported() {
assertTrue(LocaleUtil.isCharsetSupported("GBK"));
assertTrue(LocaleUtil.isCharsetSupported("8859_1"));
assertTrue(LocaleUtil.isCharsetSupported("iso8859_1"));
assertTrue(LocaleUtil.isCharsetSupported("iso-8859-1"));
assertFalse(LocaleUtil.isCharsetSupported(null));
assertFalse(LocaleUtil.isCharsetSupported("hello"));
}
@Test
public void parseLocale() {
assertNull(LocaleUtil.parseLocale(null));
assertNull(LocaleUtil.parseLocale(""));
assertNull(LocaleUtil.parseLocale(" "));
assertEquals(new Locale("zh"), LocaleUtil.parseLocale(" zh "));
assertEquals(new Locale("zh", "CN"), LocaleUtil.parseLocale(" zh _CN"));
assertEquals(new Locale("zh", "CN", "var"), LocaleUtil.parseLocale(" zh _CN_var"));
assertEquals(new Locale("zh", "CN", "var_xxx"), LocaleUtil.parseLocale(" zh _CN_var_xxx"));
assertEquals(new Locale("zh", "", "CN_var_xxx"), LocaleUtil.parseLocale(" zh__CN_var_xxx"));
}
@Test
public void getCanonicalCharset() {
assertEquals("ISO-8859-1", LocaleUtil.getCanonicalCharset("8859_1"));
assertEquals("ISO-8859-1", LocaleUtil.getCanonicalCharset("ISO8859_1"));
try {
LocaleUtil.getCanonicalCharset("aaaabbbbcccc"); // UnsupportedCharsetException
fail("Expected UnsupportedCharsetException");
} catch (UnsupportedCharsetException e) {
}
try {
LocaleUtil.getCanonicalCharset("aaaa<bbbb>cccc"); // IllegalCharsetNameException
fail("Expected IllegalCharsetNameException");
} catch (IllegalCharsetNameException e) {
}
}
@Test
public void calculateBundleNames() {
// 空baseName
assertBundleNames("", null, null, null, LocaleUtil.calculateBundleNames("", null));
assertBundleNames("", null, null, null, LocaleUtil.calculateBundleNames("", new Locale("")));
assertBundleNames("", "zh", null, null, LocaleUtil.calculateBundleNames("", new Locale("zh")));
assertBundleNames("", "zh", "zh_CN", null, LocaleUtil.calculateBundleNames("", new Locale("zh", "CN")));
assertBundleNames("", "zh", "zh_CN", "zh_CN_variant",
LocaleUtil.calculateBundleNames("", new Locale("zh", "CN", "variant")));
// hello.jsp
assertBundleNames("hello.jsp", null, null, null, LocaleUtil.calculateBundleNames("hello.jsp", null));
assertBundleNames("hello.jsp", null, null, null, LocaleUtil.calculateBundleNames("hello.jsp", new Locale("")));
assertBundleNames("hello.jsp", "hello_zh.jsp", null, null,
LocaleUtil.calculateBundleNames("hello.jsp", new Locale("zh")));
assertBundleNames("hello.jsp", "hello_zh.jsp", "hello_zh_CN.jsp", null,
LocaleUtil.calculateBundleNames("hello.jsp", new Locale("zh", "CN")));
assertBundleNames("hello.jsp", "hello_zh.jsp", "hello_zh_CN.jsp", "hello_zh_CN_variant.jsp",
LocaleUtil.calculateBundleNames("hello.jsp", new Locale("zh", "CN", "variant")));
// hello.
assertBundleNames("hello", null, null, null, LocaleUtil.calculateBundleNames("hello.", null));
assertBundleNames("hello", null, null, null, LocaleUtil.calculateBundleNames("hello.", new Locale("")));
assertBundleNames("hello", "hello_zh", null, null, LocaleUtil.calculateBundleNames("hello.", new Locale("zh")));
assertBundleNames("hello", "hello_zh", "hello_zh_CN", null,
LocaleUtil.calculateBundleNames("hello.", new Locale("zh", "CN")));
assertBundleNames("hello", "hello_zh", "hello_zh_CN", "hello_zh_CN_variant",
LocaleUtil.calculateBundleNames("hello.", new Locale("zh", "CN", "variant")));
// hello.world
assertBundleNames("hello.world", null, null, null, LocaleUtil.calculateBundleNames("hello.world", null));
assertBundleNames("hello.world", null, null, null,
LocaleUtil.calculateBundleNames("hello.world", new Locale(""), true));
assertBundleNames("hello.world", "hello.world_zh", null, null,
LocaleUtil.calculateBundleNames("hello.world", new Locale("zh"), true));
assertBundleNames("hello.world", "hello.world_zh", "hello.world_zh_CN", null,
LocaleUtil.calculateBundleNames("hello.world", new Locale("zh", "CN"), true));
assertBundleNames("hello.world", "hello.world_zh", "hello.world_zh_CN", "hello.world_zh_CN_variant",
LocaleUtil.calculateBundleNames("hello.world", new Locale("zh", "CN", "variant"), true));
}
private void assertBundleNames(String name1, String name2, String name3, String name4, List<String> names) {
Collections.reverse(names);
int length = names.size();
if (name2 == null && name3 == null && name4 == null) {
assertTrue(length == 1);
} else if (name3 == null && name4 == null) {
assertTrue(length == 2);
} else if (name4 == null) {
assertTrue(length == 3);
} else {
assertTrue(length == 4);
}
if (length > 0) {
assertEquals(name1, names.get(0));
}
if (length > 1) {
assertEquals(name2, names.get(1));
}
if (length > 2) {
assertEquals(name3, names.get(2));
}
if (length > 3) {
assertEquals(name4, names.get(3));
}
}
@Test
public void systemLocale() {
assertLocaleInfo(systemLocale, systemCharset, LocaleUtil.getSystem());
}
@Test
public void defaultLocale() {
// 未设置
assertLocaleInfo(systemLocale, systemCharset, LocaleUtil.getDefault());
// 设置
assertLocaleInfo(systemLocale, systemCharset, LocaleUtil.setDefault(new LocaleInfo(Locale.CHINA, "GBK")));
assertLocaleInfo(Locale.CHINA, "GBK", LocaleUtil.getDefault());
assertLocaleInfo(Locale.CHINA, "GBK", LocaleUtil.setDefault(Locale.CHINA));
assertLocaleInfo(Locale.CHINA, "UTF-8", LocaleUtil.getDefault());
assertLocaleInfo(Locale.CHINA, "UTF-8", LocaleUtil.setDefault(Locale.CHINA, "GB2312"));
assertLocaleInfo(Locale.CHINA, "GB2312", LocaleUtil.getDefault());
try {
LocaleUtil.setDefault(Locale.CHINA, "invalid");
fail();
} catch (UnsupportedCharsetException e) {
assertEquals("invalid", e.getCharsetName());
}
// 复位
LocaleUtil.resetDefault();
assertLocaleInfo(systemLocale, systemCharset, LocaleUtil.getDefault());
}
@Test
public void contextLocale() {
LocaleUtil.setDefault(Locale.US, "ISO-8859-1");
// 未设置
assertLocaleInfo(Locale.US, "ISO-8859-1", LocaleUtil.getContext());
// 修改default，context默认值也被修改
LocaleUtil.setDefault(Locale.CANADA, "UTF-8");
assertLocaleInfo(Locale.CANADA, "UTF-8", LocaleUtil.getContext());
LocaleUtil.setDefault(Locale.US, "ISO-8859-1");
// 设置
assertLocaleInfo(Locale.US, "ISO-8859-1", LocaleUtil.setContext(new LocaleInfo(Locale.CHINA, "GBK")));
assertLocaleInfo(Locale.CHINA, "GBK", LocaleUtil.getContext());
assertLocaleInfo(Locale.CHINA, "GBK", LocaleUtil.setContext(Locale.CHINA));
assertLocaleInfo(Locale.CHINA, "UTF-8", LocaleUtil.getContext());
assertLocaleInfo(Locale.CHINA, "UTF-8", LocaleUtil.setContext(Locale.CHINA, "GB2312"));
assertLocaleInfo(Locale.CHINA, "GB2312", LocaleUtil.getContext());
try {
LocaleUtil.setContext(Locale.CHINA, "invalid");
fail();
} catch (UnsupportedCharsetException e) {
assertEquals("invalid", e.getCharsetName());
}
// 复位
LocaleUtil.resetContext();
assertLocaleInfo(Locale.US, "ISO-8859-1", LocaleUtil.getContext());
// 修改default，context默认值也被修改
LocaleUtil.setDefault(Locale.CANADA, "UTF-8");
assertLocaleInfo(Locale.CANADA, "UTF-8", LocaleUtil.getContext());
LocaleUtil.setDefault(Locale.US, "ISO-8859-1");
}
private void assertLocaleInfo(Locale locale, String charset, LocaleInfo localeInfo) {
assertEquals(locale, localeInfo.getLocale());
assertEquals(Charset.forName(charset), localeInfo.getCharset());
}
@Test
public void notifiers() {
Notifier[] notifiers = getFieldValue(new LocaleUtil(), "notifiers", Notifier[].class);
assertEquals(2, notifiers.length);
N1 n1 = (N1) notifiers[0];
N2 n2 = (N2) notifiers[1];
// set default
assertNull(n1.defaultValue);
assertNull(n2.defaultValue);
LocaleUtil.setDefault(Locale.US, "ISO-8859-1");
assertEquals(new LocaleInfo(Locale.US, "ISO-8859-1"), n1.defaultValue);
assertEquals(new LocaleInfo(Locale.US, "ISO-8859-1"), n2.defaultValue);
// reset default
LocaleUtil.resetDefault();
assertNull(n1.defaultValue);
assertNull(n2.defaultValue);
// set context
assertNull(n1.contextValue);
assertNull(n2.contextValue);
LocaleUtil.setContext(Locale.US, "ISO-8859-1");
assertEquals(new LocaleInfo(Locale.US, "ISO-8859-1"), n1.contextValue);
assertEquals(new LocaleInfo(Locale.US, "ISO-8859-1"), n2.contextValue);
// reset context
LocaleUtil.resetContext();
assertNull(n1.contextValue);
assertNull(n2.contextValue);
}
public static class N1 implements Notifier {
LocaleInfo defaultValue;
LocaleInfo contextValue;
public void defaultChanged(LocaleInfo newValue) {
defaultValue = newValue;
}
public void defaultReset() {
defaultValue = null;
}
public void contextChanged(LocaleInfo newValue) {
contextValue = newValue;
}
public void contextReset() {
contextValue = null;
}
}
public static class N2 extends N1 {
}
}