/*
 * Copyright (c) 2015 Cisco Systems, Inc. and others.  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
 */
package org.opendaylight.mdsal.binding.dom.adapter;

import static org.hamcrest.CoreMatchers.instanceOf;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;

import org.junit.Test;
import org.opendaylight.mdsal.binding.dom.adapter.ContextReferenceExtractor.Direct;
import org.opendaylight.mdsal.binding.dom.adapter.ContextReferenceExtractor.GetValue;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.test.bi.ba.rpcservice.rev140701.RockTheHouseInput;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.test.rpc.routing.rev140701.EncapsulatedRoute;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.test.rpc.routing.rev140701.EncapsulatedRouteInGrouping;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.test.rpc.routing.rev140701.RoutedSimpleRouteInput;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.test.rpc.routing.rev140701.RoutedSimpleRouteInputBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.mdsal.test.binding.rev140701.Top;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;

public final class ContextExtractorTest {

    public interface Transitive extends EncapsulatedRouteInGrouping {

    }

    private static final InstanceIdentifier<?> TEST_ROUTE = InstanceIdentifier.create(Top.class);
    private static final Transitive TEST_GROUPING = new Transitive() {
        @Override
        public Class<? extends Transitive> implementedInterface() {
            return Transitive.class;
        }

        @Override
        public EncapsulatedRoute getRoute() {
            return new EncapsulatedRoute(TEST_ROUTE);
        }
    };

    @Test
    public void testNonRoutedExtraction() {
        assertNull(ContextReferenceExtractor.of(RockTheHouseInput.class));
    }

    @Test
    public void testRoutedSimpleExtraction() {
        final var extractor = ContextReferenceExtractor.of(RoutedSimpleRouteInput.class);
        assertNotNull(extractor);
        assertThat(extractor, instanceOf(Direct.class));
        assertSame(TEST_ROUTE, extractor.extract(new RoutedSimpleRouteInputBuilder().setRoute(TEST_ROUTE).build()));
    }

    @Test
    public void testRoutedEncapsulatedExtraction() {
        final var extractor = ContextReferenceExtractor.of(EncapsulatedRouteInGrouping.class);
        assertNotNull(extractor);
        assertThat(extractor, instanceOf(GetValue.class));
        assertSame(TEST_ROUTE, extractor.extract(TEST_GROUPING));
    }

    @Test
    public void testRoutedEncapsulatedTransitiveExtraction() {
        final var extractor = ContextReferenceExtractor.of(Transitive.class);
        assertNotNull(extractor);
        assertThat(extractor, instanceOf(GetValue.class));
        assertSame(TEST_ROUTE, extractor.extract(TEST_GROUPING));
    }
}