/*
 * Copyright (c) 2016 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.protocol.bgp.parser.spi;

import java.util.Optional;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
import org.opendaylight.protocol.bgp.parser.BgpTableTypeImpl;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.BgpTableType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.Ipv4AddressFamily;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.UnicastSubsequentAddressFamily;

public class MultiPathSupportUtilTest {

    private static final BgpTableType AFI_SAFI = new BgpTableTypeImpl(Ipv4AddressFamily.class, UnicastSubsequentAddressFamily.class);

    @Mock
    private PeerSpecificParserConstraint constraints;

    @Mock
    private MultiPathSupport mpSupport;

    @Before
    public void setUp() {
        MockitoAnnotations.initMocks(this);
    }

    @Test
    public void testIsTableTypeSupportedPossitive() {
        Mockito.doReturn(Optional.of(this.mpSupport)).when(this.constraints).getPeerConstraint(Mockito.any());
        Mockito.doReturn(true).when(this.mpSupport).isTableTypeSupported(Mockito.any());
        Assert.assertTrue(MultiPathSupportUtil.isTableTypeSupported(this.constraints, AFI_SAFI));
    }

    @Test
    public void testIsTableTypeSupportedNegativeTableTypeNotSupported() {
        Mockito.doReturn(Optional.of(this.mpSupport)).when(this.constraints).getPeerConstraint(Mockito.any());
        Mockito.doReturn(false).when(this.mpSupport).isTableTypeSupported(Mockito.any());
        Assert.assertFalse(MultiPathSupportUtil.isTableTypeSupported(this.constraints, AFI_SAFI));
    }

    @Test
    public void testIsTableTypeSupportedNegativeMpSupportAbsent() {
        Mockito.doReturn(Optional.empty()).when(this.constraints).getPeerConstraint(Mockito.any());
        Assert.assertFalse(MultiPathSupportUtil.isTableTypeSupported(this.constraints, AFI_SAFI));
    }

    @Test
    public void testIsTableTypeSupportedNegativeNull() {
        Assert.assertFalse(MultiPathSupportUtil.isTableTypeSupported(null, AFI_SAFI));
    }

    @Test(expected=NullPointerException.class)
    public void testIsTableTypeSupportedNPE() {
        MultiPathSupportUtil.isTableTypeSupported(null, null);
    }

}