/*
* Copyright 2002-2017 the original author or authors.
*
* 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 org.springframework.web.servlet.i18n;
import java.util.Arrays;
import java.util.Collections;
import java.util.Locale;
import javax.servlet.http.HttpServletRequest;
import org.junit.Test;
import org.springframework.mock.web.test.MockHttpServletRequest;
import static java.util.Locale.*;
import static org.junit.Assert.*;
/**
* Unit tests for {@link AcceptHeaderLocaleResolver}.
*
* @author Rossen Stoyanchev
* @author Juergen Hoeller
*/
public class AcceptHeaderLocaleResolverTests {
private AcceptHeaderLocaleResolver resolver = new AcceptHeaderLocaleResolver();
@Test
public void resolve() throws Exception {
assertEquals(CANADA, this.resolver.resolveLocale(request(CANADA)));
assertEquals(US, this.resolver.resolveLocale(request(US, CANADA)));
}
@Test
public void resolvePreferredSupported() throws Exception {
this.resolver.setSupportedLocales(Collections.singletonList(CANADA));
assertEquals(CANADA, this.resolver.resolveLocale(request(US, CANADA)));
}
@Test
public void resolvePreferredNotSupported() throws Exception {
this.resolver.setSupportedLocales(Collections.singletonList(CANADA));
assertEquals(US, this.resolver.resolveLocale(request(US, UK)));
}
@Test
public void resolvePreferredNotSupportedWithDefault() {
this.resolver.setSupportedLocales(Arrays.asList(US, JAPAN));
this.resolver.setDefaultLocale(Locale.JAPAN);
MockHttpServletRequest request = new MockHttpServletRequest();
request.addHeader("Accept-Language", KOREA.toLanguageTag());
request.setPreferredLocales(Collections.singletonList(KOREA));
assertEquals(Locale.JAPAN, this.resolver.resolveLocale(request));
}
@Test
public void defaultLocale() throws Exception {
this.resolver.setDefaultLocale(JAPANESE);
MockHttpServletRequest request = new MockHttpServletRequest();
assertEquals(JAPANESE, this.resolver.resolveLocale(request));
request.addHeader("Accept-Language", US.toLanguageTag());
request.setPreferredLocales(Collections.singletonList(US));
assertEquals(US, this.resolver.resolveLocale(request));
}
private HttpServletRequest request(Locale... locales) {
MockHttpServletRequest request = new MockHttpServletRequest();
request.setPreferredLocales(Arrays.asList(locales));
return request;
}
}