ImplicitContextPassingIntegrationTest

/*
 * EL4J, the Extension Library for the J2EE, adds incremental enhancements to
 * the spring framework, http://el4j.sf.net
 * Copyright (C) 2006 by ELCA Informatique SA, Av. de la Harpe 22-24,
 * 1000 Lausanne, Switzerland, http://www.elca.ch
 *
 * EL4J is published under the GNU Lesser General Public License (LGPL)
 * Version 2.1. See http://www.gnu.org/licenses/
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * For alternative licensing, please contact info@elca.ch
 */

package ch.elca.el4j.tests.core.implicitcontextpassing;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.fail;

import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;

import ch.elca.el4j.core.context.ModuleApplicationContext;
import ch.elca.el4j.core.contextpassing.ImplicitContextPassingRegistry;
import ch.elca.el4j.tests.remoting.service.Calculator;

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/**
 * This integration test checks correctness of the Implicit context passer.
 *
 * @svnLink $Revision: 3875 $;$Date: 2009-08-04 14:35:53 +0200 (Di, 04. Aug 2009) $;$Author: swismer $;$URL: https://el4j.svn.sourceforge.net/svnroot/el4j/branches/el4j_3_1/el4j/framework/tests/core/core_implicit_context_passing_test/src/test/java/ch/elca/el4j/tests/core/implicitcontextpassing/ImplicitContextPassingIntegrationTest.java $
 *
 * @author David Stefan (DST)
 */

public class ImplicitContextPassingIntegrationTest {

	/**
	 * Location where config files can be found.
	 * The order of the config files is crucial. If the client is started before
	 * the server, it obviously won't work.
	 */
	private static final String[] CONFIG_LOCATION
		= new String[]{
			"classpath:scenarios/implicitcontextpassing/rmi-server-config.xml",
			"classpath:scenarios/implicitcontextpassing/rmi-client-config.xml"
		};

	/**
	 * ApplicationContext object.
	 */
	private ApplicationContext m_appContext;

	/**
	 * ImplicitContextPassingRegistry for client.
	 */
	private ImplicitContextPassingRegistry m_clientRegistry;

	/**
	 * ImplicitContextPassingRegistry for server.
	 */
	private ImplicitContextPassingRegistry m_serverRegistry;

	/**
	 * Implicit context passer for client.
	 */
	private ImplicitContextPassTester m_clientPasserA;

	/**
	 * Implicit context passer for server.
	 */
	private ImplicitContextPassTester m_serverPasserA;

	/**
	 * Inteface of service provided by server.
	 */
	private Calculator m_calc;

	/**
	 * {@inheritDoc}
	 */
	@Before
	public void setUp() {

		m_appContext = new ModuleApplicationContext(CONFIG_LOCATION, true);
		m_clientRegistry = (ImplicitContextPassingRegistry) m_appContext
			.getBean("clientImplicitContextPassingRegistry");

		m_serverRegistry = (ImplicitContextPassingRegistry) m_appContext
			.getBean("serverImplicitContextPassingRegistry");

		m_serverPasserA = (ImplicitContextPassTester) m_appContext
			.getBean("serverPasserA");

		m_clientPasserA = (ImplicitContextPassTester) m_appContext
			.getBean("clientPasserA");

		m_calc = (Calculator) m_appContext.getBean("calculator");
	}

	/**
	 * This test simulates registration with contextPasser of client beeing
	 * null.
	 */
	@Test
	public void testClientContextPasserIsNull() {
		try {
			m_clientRegistry.registerImplicitContextPasser(null);
			fail("Passing null should raise an exception");
		} catch (NullPointerException e) {
			// should raise a nullpointer exception
		}
	}

	/**
	 * This test simulates registration with contextPasser of server beeing
	 * null.
	 */
	@Test
	public void testServerContextPasserIsNull() {
		try {
			m_serverRegistry.registerImplicitContextPasser(null);
			fail("Passing null should raise an exception");
		} catch (NullPointerException e) {
			// should raise a nullpointer exception
		}
	}

	/**
	 * This test simulates assignment to passer of a registry beeing null .
	 */
	@Test
	public void testRegistryIsNull() {
		ImplicitContextPasserImplA passerA = new ImplicitContextPasserImplA();
		try {
			passerA.setImplicitContextPassingRegistry(null);
			fail("Passing null should raise an exception");
		} catch (RuntimeException e) {
			// should raise a runtime exception
		}
	}

	/**
	 * This tests simulates context passing with one passer on each side,
	 * passing an integer.
	 */
	@Test
	public void testOnePasserIntegerData() {
		m_clientPasserA.setDataToUse(ImplicitContextPasserImplA.INT_TEST);
		m_calc.getArea(0.65, 0.78);
		assertEquals(m_clientPasserA.getTestData(),
			m_serverPasserA.getReceivedData());
		// Reset data for next test
		m_serverPasserA.setDataToUse(ImplicitContextPasserImplA.RESET);
	}

	/**
	 * This tests simulates context passing with one passer on each side,
	 * passing a float.
	 */
	@Test
	public void testOnePasserFloatData() {
		m_clientPasserA.setDataToUse(ImplicitContextPasserImplA.FLOAT_TEST);
		m_calc.getArea(0.65, 0.78);
		assertEquals(m_clientPasserA.getTestData(),
			m_serverPasserA.getReceivedData());
		// Reset data for next test
		m_serverPasserA.setDataToUse(ImplicitContextPasserImplA.RESET);

	}

	/**
	 * This tests simulates context passing with one passer on each side,
	 * passing an double.
	 */
	@Test
	public void testOnePasserDoubleData() {
		m_clientPasserA.setDataToUse(ImplicitContextPasserImplA.DOUBLE_TEST);
		m_calc.getArea(0.65, 0.78);
		assertEquals(m_clientPasserA.getTestData(),
			m_serverPasserA.getReceivedData());
		// Reset data for next test
		m_serverPasserA.setDataToUse(ImplicitContextPasserImplA.RESET);

	}

	/**
	 * This tests simulates context passing with one passer on each side,
	 * passing a list.
	 */
	@Test
	public void testOnePasserListData() {
		m_clientPasserA.setDataToUse(ImplicitContextPasserImplA.LIST_TEST);
		m_calc.getArea(0.65, 0.78);
		assertEquals(m_clientPasserA.getTestData(),
			m_serverPasserA.getReceivedData());
		// Reset data for next test
		m_serverPasserA.setDataToUse(ImplicitContextPasserImplA.RESET);
	}

	/**
	 * This tests simulates context passing with one passer on each side,
	 * passing an empty list.
	 */
	@Test
	public void testOnePasserEmptyListData() {
		m_clientPasserA.setDataToUse(ImplicitContextPasserImplA.NULL_LIST_TEST);
		m_calc.getArea(0.65, 0.78);
		assertEquals(m_clientPasserA.getTestData(),
			m_serverPasserA.getReceivedData());
		// Reset data for next test
		m_serverPasserA.setDataToUse(ImplicitContextPasserImplA.RESET);
	}

	/**
	* This test checks if context is NOT passed if service method isn't called.
	*/
	@Test
	public void testServiceNotCalled() {
		m_clientPasserA.setDataToUse(ImplicitContextPasserImplA.RESET);
		m_clientPasserA.setDataToUse(ImplicitContextPasserImplA.DOUBLE_TEST);
		assertNull(m_serverPasserA.getReceivedData());
		// Reset data for next test
		m_clientPasserA.setDataToUse(ImplicitContextPasserImplA.RESET);
	}

	/**
	 * This tests simulates context passing with two passers on each side,
	 * passing a double and a list.
	 */
	@Test
	public void testTwoPasser() {

		ImplicitContextPasserImplB serverPasserB = (ImplicitContextPasserImplB)
			m_appContext.getBean("serverPasserB");

		ImplicitContextPasserImplB clientPasserB = (ImplicitContextPasserImplB)
			m_appContext.getBean("clientPasserB");

		m_clientPasserA.setDataToUse(ImplicitContextPasserImplA.DOUBLE_TEST);
		clientPasserB.setDataToUse(ImplicitContextPassTester.LIST_TEST);
		m_calc.getArea(0.65, 0.78);
		assertEquals(m_clientPasserA.getTestData(), m_serverPasserA
			.getReceivedData());
		assertEquals(clientPasserB.getTestData(), serverPasserB
			.getReceivedData());
	}

	/**
	 * This tests simulates context passing with two passers on client side
	 * and one on server side, passing a double and a list.
	 */
	@Test
	public void testTwoAndOnePasser() {

		ImplicitContextPasserImplB clientPasserB = (ImplicitContextPasserImplB)
			m_appContext.getBean("clientPasserB");

		m_clientPasserA.setDataToUse(ImplicitContextPasserImplA.DOUBLE_TEST);
		clientPasserB.setDataToUse(ImplicitContextPassTester.DOUBLE_TEST);
		m_calc.getArea(0.65, 0.78);
		assertEquals(m_clientPasserA.getTestData(), m_serverPasserA
			.getReceivedData());
		assertNotSame(clientPasserB.getTestData(), m_serverPasserA
			.getReceivedData());
	}

}
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