/******************************************************************************
* Copyright (c) 2016 Oracle
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Konstantin Komissarchik - initial implementation and ongoing maintenance
******************************************************************************/
package org.eclipse.sapphire.tests.services.t0012;
import java.util.List;
import org.eclipse.sapphire.PossibleValuesService;
import org.eclipse.sapphire.Property;
import org.eclipse.sapphire.tests.SapphireTestCase;
import org.junit.Test;
/**
* Tests instantiation of services to ensure that only one instance of a particular service implementation is
* created in a particular context.
*
* @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a>
*/
public final class TestServices0012 extends SapphireTestCase
{
@Test
public void test() throws Exception
{
final TestElement element = TestElement.TYPE.instantiate();
final Property property = element.property( TestElement.PROP_VALUE );
final List<PossibleValuesService> xl = property.services( PossibleValuesService.class );
final List<TestPossibleValuesService> yl = property.services( TestPossibleValuesService.class );
assertEquals( 1, xl.size() );
assertEquals( 1, yl.size() );
assertSame( xl.get( 0 ), yl.get( 0 ) );
final PossibleValuesService x = property.service( PossibleValuesService.class );
final TestPossibleValuesService y = property.service( TestPossibleValuesService.class );
assertNotNull( x );
assertSame( x, y );
}
}