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CoordinatingPortProviderTest.java
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CoordinatingPortProviderTest.java
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/*
* Copyright (c) 2002-2017 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.build.portauthority;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.not;
import static org.junit.Assert.assertThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import org.junit.Test;
public class CoordinatingPortProviderTest
{
@Test
public void shouldProvideUniquePorts() throws Exception
{
PortRepository portRepository = mock( PortRepository.class );
PortProvider portProvider = new CoordinatingPortProvider( portRepository, port -> false );
when( portRepository.reserveNextPort( "foo" ) ).thenReturn( 40, 41 );
int port1 = portProvider.getNextFreePort( "foo" );
int port2 = portProvider.getNextFreePort( "foo" );
assertThat( port1, is( not( equalTo( port2 ) ) ) );
}
@Test
public void shouldSkipReservedPorts() throws Exception
{
PortRepository portRepository = mock( PortRepository.class );
PortProvider portProvider = new CoordinatingPortProvider( portRepository, port -> false );
when( portRepository.reserveNextPort( "foo" ) ).thenReturn( 40, 41, 43 );
assertThat( portProvider.getNextFreePort( "foo" ), is( 40 ) );
assertThat( portProvider.getNextFreePort( "foo" ), is( 41 ) );
assertThat( portProvider.getNextFreePort( "foo" ), is( 43 ) );
}
@Test
public void shouldSkipOccupiedPorts() throws Exception
{
PortRepository portRepository = mock( PortRepository.class );
PortProbe portProbe = mock( PortProbe.class );
PortProvider portProvider = new CoordinatingPortProvider( portRepository, portProbe );
when( portRepository.reserveNextPort( "foo" ) ).thenReturn( 40, 41, 42, 43 );
when( portProbe.isOccupied( 40 ) ).thenReturn( false );
when( portProbe.isOccupied( 41 ) ).thenReturn( false );
when( portProbe.isOccupied( 42 ) ).thenReturn( true );
when( portProbe.isOccupied( 43 ) ).thenReturn( false );
assertThat( portProvider.getNextFreePort( "foo" ), is( 40 ) );
assertThat( portProvider.getNextFreePort( "foo" ), is( 41 ) );
assertThat( portProvider.getNextFreePort( "foo" ), is( 43 ) );
}
}