core/runtime/src/test/java/org/qi4j/runtime/sideeffects/ModuleSideEffectTest.java

/*
 * Copyright (c) 2009, Rickard Öberg. All Rights Reserved.
 *
 * 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.qi4j.runtime.sideeffects;

import java.lang.reflect.Method;
import java.util.Arrays;
import org.hamcrest.CoreMatchers;
import org.junit.Assert;
import org.junit.Test;
import org.qi4j.api.composite.TransientComposite;
import org.qi4j.api.mixin.Mixins;
import org.qi4j.api.sideeffect.GenericSideEffect;
import org.qi4j.bootstrap.AssemblyException;
import org.qi4j.bootstrap.ModuleAssembly;
import org.qi4j.test.AbstractQi4jTest;

/**
 * Test of declaring sideeffect in assembly
 */
public class ModuleSideEffectTest
    extends AbstractQi4jTest
{
    public static boolean ok = false;

    public void assemble( ModuleAssembly module )
        throws AssemblyException
    {
        module.transients( FooComposite.class ).withSideEffects( TraceSideEffect.class );
    }

    @Test
    public void testModuleSideEffect()
    {
        module.newTransient( Foo.class ).test( "Foo", 42 );
        Assert.assertThat( "SideEffect has been called", ok, CoreMatchers.equalTo( true ) );
    }

    @Mixins( FooMixin.class )
    public interface FooComposite
        extends TransientComposite, Foo
    {
    }

    public interface Foo
    {
        String test( String foo, int bar );
    }

    public static class FooMixin
        implements Foo
    {
        public String test( String foo, int bar )
        {
            return foo + " " + bar;
        }
    }

    public static class TraceSideEffect
        extends GenericSideEffect
    {
        public Object invoke( Object proxy, Method method, Object[] args )
            throws Throwable
        {
            ok = true;
            Object result = this.result.invoke( proxy, method, args );
            String str = method.getName() + Arrays.asList( args );
            System.out.println( str );
            return result;
        }
    }
}