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/*
 * Copyright (c) 2016 Cisco and/or its affiliates.
 *
 * 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 io.fd.hc2vpp.nat.read.ifc;

import static io.fd.hc2vpp.nat.read.ifc.InterfaceInboundNatCustomizerTest.getId;
import static org.junit.Assert.assertTrue;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import com.google.common.collect.Lists;
import io.fd.hc2vpp.common.test.read.ReaderCustomizerTest;
import io.fd.hc2vpp.common.translate.util.NamingContext;
import io.fd.honeycomb.translate.impl.read.GenericReader;
import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
import io.fd.honeycomb.translate.util.RWUtils;
import io.fd.jvpp.nat.dto.Nat44InterfaceDetails;
import io.fd.jvpp.nat.dto.Nat44InterfaceDetailsReplyDump;
import io.fd.jvpp.nat.dto.Nat44InterfaceOutputFeatureDetails;
import io.fd.jvpp.nat.dto.Nat44InterfaceOutputFeatureDetailsReplyDump;
import io.fd.jvpp.nat.dto.Nat64InterfaceDetailsReplyDump;
import io.fd.jvpp.nat.future.FutureJVppNatFacade;
import io.fd.jvpp.nat.types.InterfaceIndex;
import io.fd.jvpp.nat.types.NatConfigFlags;
import org.junit.Test;
import org.mockito.Mock;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang._interface.nat.rev190527._interface.nat.attributes.NatBuilder;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang._interface.nat.rev190527._interface.nat.attributes.nat.Outbound;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang._interface.nat.rev190527._interface.nat.attributes.nat.OutboundBuilder;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;

public class InterfaceOutboundNatCustomizerTest
        extends ReaderCustomizerTest<Outbound, OutboundBuilder> {

    private static final String IFC_NAME = "a";
    private static final int IFC_IDX = 0;
    private static final String CTX_NAME = "ifc";

    @Mock
    private FutureJVppNatFacade jvppNat;
    private NamingContext ifcContext = new NamingContext(CTX_NAME, CTX_NAME);
    private InstanceIdentifier<Outbound> id;

    public InterfaceOutboundNatCustomizerTest() {
        super(Outbound.class, NatBuilder.class);
    }

    @Override
    protected void setUp() throws Exception {
        id = getId(Outbound.class);
        defineMapping(mappingContext, IFC_NAME, IFC_IDX, CTX_NAME);
        when(jvppNat.nat44InterfaceDump(any())).thenReturn(future(new Nat44InterfaceDetailsReplyDump()));
        when(jvppNat.nat44InterfaceOutputFeatureDump(any()))
                .thenReturn(future(new Nat44InterfaceOutputFeatureDetailsReplyDump()));
        when(jvppNat.nat64InterfaceDump(any()))
                .thenReturn(future(new Nat64InterfaceDetailsReplyDump()));
    }

    private GenericReader<Outbound, OutboundBuilder> getReader() {
        return new GenericReader<>(RWUtils.makeIidWildcarded(id), customizer);
    }

    private void mockPostRoutingDump() {
        final Nat44InterfaceOutputFeatureDetailsReplyDump details = new Nat44InterfaceOutputFeatureDetailsReplyDump();
        final Nat44InterfaceOutputFeatureDetails detail = new Nat44InterfaceOutputFeatureDetails();
        detail.flags = new NatConfigFlags();
        detail.flags.add(NatConfigFlags.NatConfigFlagsOptions.NAT_IS_OUTSIDE);
        detail.swIfIndex = new InterfaceIndex();
        detail.swIfIndex.interfaceindex = IFC_IDX;
        details.nat44InterfaceOutputFeatureDetails = Lists.newArrayList(detail);
        when(jvppNat.nat44InterfaceOutputFeatureDump(any())).thenReturn(future(details));
    }

    @Test
    public void testPresencePreRouting() throws Exception {
        final Nat44InterfaceDetailsReplyDump details = new Nat44InterfaceDetailsReplyDump();
        final Nat44InterfaceDetails detail = new Nat44InterfaceDetails();
        detail.flags = new NatConfigFlags();
        detail.flags.add(NatConfigFlags.NatConfigFlagsOptions.NAT_IS_OUTSIDE);
        detail.swIfIndex = new InterfaceIndex();
        detail.swIfIndex.interfaceindex = IFC_IDX;
        details.nat44InterfaceDetails = Lists.newArrayList(detail);
        when(jvppNat.nat44InterfaceDump(any())).thenReturn(future(details));

        assertTrue(getReader().read(id, ctx).isPresent());
    }

    @Test
    public void testPresencePostRouting() throws Exception {
        mockPostRoutingDump();
        assertTrue(getReader().read(id, ctx).isPresent());
    }

    @Test
    public void testReadPostRouting() throws Exception {
        mockPostRoutingDump();
        final OutboundBuilder builder = mock(OutboundBuilder.class);
        customizer.readCurrentAttributes(id, builder, ctx);
        verify(builder).setPostRouting(true);
    }

    @Override
    protected ReaderCustomizer<Outbound, OutboundBuilder> initCustomizer() {
        return new InterfaceOutboundNatCustomizer(jvppNat, ifcContext);
    }
}