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LastAppliedTrackingStateMachineTest.java
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LastAppliedTrackingStateMachineTest.java
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/*
* Copyright (c) 2002-2016 "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.coreedge.raft.state;
import org.junit.Test;
import org.neo4j.coreedge.raft.ReplicatedInteger;
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.mock;
import static org.neo4j.coreedge.raft.state.LastAppliedTrackingStateMachine.NOTHING_APPLIED;
public class LastAppliedTrackingStateMachineTest
{
@Test
public void shouldInitiallyHaveNothingApplied() throws Exception
{
// given
LastAppliedTrackingStateMachine lastAppliedTrackingStateMachine = new LastAppliedTrackingStateMachine( mock( StateMachines.class ) );
// then
assertEquals( NOTHING_APPLIED, lastAppliedTrackingStateMachine.lastApplied() );
}
@Test
public void shouldKeepTrackOfTheLastAppliedIndex() throws Exception
{
// given
LastAppliedTrackingStateMachine lastAppliedTrackingStateMachine = new LastAppliedTrackingStateMachine( mock( StateMachines.class ) );
// when
lastAppliedTrackingStateMachine.applyCommand( ReplicatedInteger.valueOf( 1 ), 1 );
// then
assertEquals( 1, lastAppliedTrackingStateMachine.lastApplied() );
}
@Test
public void shouldKeepHighestIndexSeenSoFar() throws Exception
{
// given
LastAppliedTrackingStateMachine lastAppliedTrackingStateMachine = new LastAppliedTrackingStateMachine( mock( StateMachines.class ) );
// when
lastAppliedTrackingStateMachine.applyCommand( ReplicatedInteger.valueOf( 1 ), 9 );
lastAppliedTrackingStateMachine.applyCommand( ReplicatedInteger.valueOf( 1 ), 1 );
// then
assertEquals( 9, lastAppliedTrackingStateMachine.lastApplied() );
}
}