/*
* Copyright 2012-2015 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.data.convert;
import static org.assertj.core.api.Assertions.*;
import static org.mockito.Mockito.*;
import java.util.Collections;
import java.util.Map;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.junit.MockitoJUnitRunner;
import org.springframework.data.mapping.PersistentEntity;
/**
* Unit tests for {@link EntityInstantiators}.
*
* @author Oliver Gierke
*/
@RunWith(MockitoJUnitRunner.class)
public class EntityInstantiatorsUnitTests {
@Mock PersistentEntity<?, ?> entity;
@Mock EntityInstantiator customInstantiator;
@Test(expected = IllegalArgumentException.class)
public void rejectsNullFallbackInstantiator() {
new EntityInstantiators((EntityInstantiator) null);
}
@Test
public void usesReflectionEntityInstantiatorAsDefaultFallback() {
EntityInstantiators instantiators = new EntityInstantiators();
assertThat(instantiators.getInstantiatorFor(entity)).isInstanceOf(ClassGeneratingEntityInstantiator.class);
}
@Test
public void returnsCustomInstantiatorForTypeIfRegistered() {
doReturn(String.class).when(entity).getType();
Map<Class<?>, EntityInstantiator> customInstantiators = Collections
.singletonMap(String.class, customInstantiator);
EntityInstantiators instantiators = new EntityInstantiators(customInstantiators);
assertThat(instantiators.getInstantiatorFor(entity)).isEqualTo(customInstantiator);
}
@Test
public void usesCustomFallbackInstantiatorsIfConfigured() {
doReturn(Object.class).when(entity).getType();
Map<Class<?>, EntityInstantiator> customInstantiators = Collections
.singletonMap(String.class, ReflectionEntityInstantiator.INSTANCE);
EntityInstantiators instantiators = new EntityInstantiators(customInstantiator, customInstantiators);
instantiators.getInstantiatorFor(entity);
assertThat(instantiators.getInstantiatorFor(entity)).isEqualTo(customInstantiator);
doReturn(String.class).when(entity).getType();
assertThat(instantiators.getInstantiatorFor(entity))
.isEqualTo((EntityInstantiator) ReflectionEntityInstantiator.INSTANCE);
}
}