/**
* Copyright (C) 2012-2014 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 ninja;
import ninja.jpa.JpaInitializer;
import ninja.jpa.JpaModule;
import ninja.utils.NinjaMode;
import ninja.utils.NinjaModeHelper;
import ninja.utils.NinjaPropertiesImpl;
import org.junit.After;
import org.junit.Before;
import com.google.common.base.Optional;
import com.google.inject.Guice;
import com.google.inject.Injector;
/**
* Base class for testing JPA-based DAOs
*
* How to use: Extend the Class and call getInstace(Class<SomeDao>) method to
* get a real DAO. Then use JUnit assertions to test it (Example:
* assertEquals(0,someDao.getAll().size());)
*
* @author emiguelt
*
*/
public abstract class NinjaDaoTestBase {
/**
* Persistence Service initializer
*/
private JpaInitializer jpaInitializer;
/**
* Guice Injector to get DAOs
*/
private Injector injector;
private NinjaMode ninjaMode;
/**
* Constructor checks if NinjaMode was set in System properties, if not,
* NinjaMode.test is used as default
*/
public NinjaDaoTestBase() {
Optional<NinjaMode> mode = NinjaModeHelper
.determineModeFromSystemProperties();
ninjaMode = mode.isPresent() ? mode.get() : NinjaMode.test;
}
/**
* Constructor, receives the test mode to choose the database
*
* @param testMode
*/
public NinjaDaoTestBase(NinjaMode testMode) {
ninjaMode = testMode;
}
@Before
public final void initialize() {
NinjaPropertiesImpl ninjaProperties = new NinjaPropertiesImpl(ninjaMode);
injector = Guice.createInjector(new JpaModule(ninjaProperties));
jpaInitializer = injector.getInstance(JpaInitializer.class);
jpaInitializer.start();
}
@After
public final void stop() {
jpaInitializer.stop();
}
/**
* Get the DAO instances ready to use
*
* @param clazz
* @return DAO
*/
protected <T> T getInstance(Class<T> clazz) {
return injector.getInstance(clazz);
}
}