/*
* Copyright 2015-2017 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.data.rest.webmvc.json;
import static org.assertj.core.api.Assertions.*;
import java.util.Locale;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.context.support.MessageSourceAccessor;
import org.springframework.context.support.StaticMessageSource;
/**
* Unit tests for {@link EnumTranslator}.
*
* @author Oliver Gierke
*/
public class EnumTranslatorUnitTests {
StaticMessageSource messageSource;
EnumTranslator configuration;
@Before
public void setUp() {
LocaleContextHolder.setLocale(Locale.US);
this.messageSource = new StaticMessageSource();
this.messageSource.addMessage(MyEnum.class.getName().concat(".").concat(MyEnum.FIRST_VALUE.name()), Locale.US,
"Translated");
this.configuration = new EnumTranslator(new MessageSourceAccessor(messageSource));
}
@Test(expected = IllegalArgumentException.class) // DATAREST-654
public void rejectsNullMessageSourceAccessor() {
new EnumTranslator(null);
}
@Test // DATAREST-654
public void parsesNullForNullSource() {
assertThat(configuration.fromText(MyEnum.class, null)).isNull();
}
@Test // DATAREST-654
public void parsesNullForEmptySource() {
assertThat(configuration.fromText(MyEnum.class, null)).isNull();
}
@Test // DATAREST-654
public void parsesNullForUnknownValue() {
assertThat(configuration.fromText(MyEnum.class, "Foobar")).isNull();
}
@Test // DATAREST-654
public void returnsEnumNameIfDefaultTranslationIsDisabled() {
configuration.setEnableDefaultTranslation(false);
assertThat(configuration.asText(MyEnum.SECOND_VALUE)).isEqualTo(MyEnum.SECOND_VALUE.name());
}
@Test // DATAREST-654
public void returnsDefaultTranslationByDefault() {
assertThat(configuration.asText(MyEnum.SECOND_VALUE)).isEqualTo("Second value");
}
@Test // DATAREST-654
public void parsesEnumNameIfDefaultTranslationIsDisabled() {
configuration.setEnableDefaultTranslation(false);
assertThat(configuration.fromText(MyEnum.class, "FIRST_VALUE")).isEqualTo(MyEnum.FIRST_VALUE);
}
@Test // DATAREST-654
public void parsesStandardTranslationAndEnumNameByDefault() {
assertThat(configuration.fromText(MyEnum.class, "FIRST_VALUE")).isEqualTo(MyEnum.FIRST_VALUE);
assertThat(configuration.fromText(MyEnum.class, "Second value")).isEqualTo(MyEnum.SECOND_VALUE);
}
@Test // DATAREST-654
public void translatesEnumName() {
LocaleContextHolder.setLocale(Locale.US);
messageSource.addMessage(MyEnum.class.getName().concat(".").concat(MyEnum.FIRST_VALUE.name()), Locale.US,
"Translated");
assertThat(configuration.asText(MyEnum.FIRST_VALUE)).isEqualTo("Translated");
}
@Test // DATAREST-654
public void parsesEnumNameByDefaultEvenIfMessageDefined() {
// Parses resolved message and enum name
assertThat(configuration.fromText(MyEnum.class, "Translated")).isEqualTo(MyEnum.FIRST_VALUE);
assertThat(configuration.fromText(MyEnum.class, "FIRST_VALUE")).isEqualTo(MyEnum.FIRST_VALUE);
// Does not parse default translation as explicit translation is available
assertThat(configuration.fromText(MyEnum.class, "First value")).isNull();
// Parses default translation as no explicit translation is available
assertThat(configuration.fromText(MyEnum.class, "Second value")).isEqualTo(MyEnum.SECOND_VALUE);
assertThat(configuration.fromText(MyEnum.class, "SECOND_VALUE")).isEqualTo(MyEnum.SECOND_VALUE);
}
@Test // DATAREST-654
public void parsesEnumWithDefaultTranslationDisabled() {
configuration.setEnableDefaultTranslation(false);
// Parses default translation as no explicit translation is available
assertThat(configuration.fromText(MyEnum.class, "Second value")).isNull();
assertThat(configuration.fromText(MyEnum.class, "SECOND_VALUE")).isEqualTo(MyEnum.SECOND_VALUE);
}
@Test
public void doesNotResolveEnumNameAsFallbackIfConfigured() {
configuration.setParseEnumNameAsFallback(false);
// Parses resolved message and enum name
assertThat(configuration.fromText(MyEnum.class, "Translated")).isEqualTo(MyEnum.FIRST_VALUE);
assertThat(configuration.fromText(MyEnum.class, "FIRST_VALUE")).isNull();
// Parses default translation as no explicit translation is available
assertThat(configuration.fromText(MyEnum.class, "Second value")).isEqualTo(MyEnum.SECOND_VALUE);
assertThat(configuration.fromText(MyEnum.class, "SECOND_VALUE")).isNull();
}
static enum MyEnum {
FIRST_VALUE, SECOND_VALUE;
}
}