/**
* 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.utils.NinjaTestServer;
import org.junit.runners.BlockJUnit4ClassRunner;
import org.junit.runners.model.InitializationError;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.inject.Injector;
/**
* <p>
* NinjaRunner makes it easy to test DAOs and service objects.
* Service objects are generally the place where business logic executed.
* Each service object may be injected a lot of DAOs.
* </p>
*
* <p>
* Suppose you have some service objects ,
* without NinjaRunner , the only way to test service objects is to getInstance() of these DAOs
* from Guice's injector and manually constructor-injecting to the service object
* in NinjaTest's {@code @Before} method.
* </p>
*
* <p>
* With NinjaRunner , you just add {@code @RunWith(NinjaRunner.class)} to your test class ,
* and declare {@code @Inject private ServiceObj serviceObj;} and you'll get an
* injected serviceObj. No more {@code @Before} methods.
* </p>
*
* <p>
* Code Example :
* </p>
*
* <pre>
* {@code @RunWith(NinjaRunner.class)
* public class DataServiceTest {
* @Inject private ServiceObj serviceObj;
*
* @Test
* public void testDataService() {
* assert (serviceObj != null);
* }
* }
* }
* </pre>
*/
public class NinjaRunner extends BlockJUnit4ClassRunner {
private Logger logger = LoggerFactory.getLogger(getClass());
private Injector injector = null;
public NinjaRunner(Class<?> klass) throws InitializationError {
super(klass);
NinjaTestServer ninjaTestServer = new NinjaTestServer();
injector = ninjaTestServer.getInjector();
}
@Override
protected Object createTest() throws Exception {
Object testObj = super.createTest();
injector.injectMembers(testObj);
return testObj;
}
}