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 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
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 *
 *    http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.cayenne.di.spi;

import org.apache.cayenne.di.Binder;
import org.apache.cayenne.di.Module;
import org.apache.cayenne.di.mock.MockImplementation1_EventAnnotations;
import org.apache.cayenne.di.mock.MockInterface1;
import org.junit.Test;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

public class DefaultInjectorTest {

    @Test
    public void testConstructor_Empty() {
        new DefaultInjector();
        // no exceptions...
    }

    @Test
    public void testConstructor_SingleModule() {
        final boolean[] configureCalled = new boolean[1];

        Module module = new Module() {

            public void configure(Binder binder) {
                configureCalled[0] = true;
            }
        };

        new DefaultInjector(module);
        assertTrue(configureCalled[0]);
    }

    @Test
    public void testConstructor_MultiModule() {

        final boolean[] configureCalled = new boolean[2];

        Module module1 = new Module() {

            public void configure(Binder binder) {
                configureCalled[0] = true;
            }
        };

        Module module2 = new Module() {

            public void configure(Binder binder) {
                configureCalled[1] = true;
            }
        };

        new DefaultInjector(module1, module2);
        assertTrue(configureCalled[0]);
        assertTrue(configureCalled[1]);
    }

    @Test
    public void testShutdown() {

        MockImplementation1_EventAnnotations.reset();

        Module module = new Module() {

            public void configure(Binder binder) {
                binder.bind(MockInterface1.class).to(
                        MockImplementation1_EventAnnotations.class).inSingletonScope();
            }
        };

        DefaultInjector injector = new DefaultInjector(module);

        MockInterface1 instance1 = injector.getInstance(MockInterface1.class);
        assertEquals("XuI", instance1.getName());

        assertFalse(MockImplementation1_EventAnnotations.shutdown1);
        assertFalse(MockImplementation1_EventAnnotations.shutdown2);
        assertFalse(MockImplementation1_EventAnnotations.shutdown3);

        injector.shutdown();

        assertTrue(MockImplementation1_EventAnnotations.shutdown1);
        assertTrue(MockImplementation1_EventAnnotations.shutdown2);
        assertTrue(MockImplementation1_EventAnnotations.shutdown3);
    }

}