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PropertyContainerStateImplTest.java
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PropertyContainerStateImplTest.java
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/*
* Copyright (c) 2002-2018 "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 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.kernel.impl.api.state;
import org.junit.Test;
import java.util.Iterator;
import org.neo4j.helpers.collection.Iterators;
import org.neo4j.kernel.api.properties.PropertyKeyValue;
import org.neo4j.storageengine.api.StorageProperty;
import org.neo4j.values.storable.Values;
import static java.util.Arrays.asList;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;
public class PropertyContainerStateImplTest
{
@Test
public void shouldListAddedProperties()
{
// Given
PropertyContainerStateImpl state = new PropertyContainerStateImpl( 1 );
state.addProperty( 1, Values.of( "Hello" ) );
state.addProperty( 2, Values.of( "Hello" ) );
state.removeProperty( 1 );
// When
Iterator<StorageProperty> added = state.addedProperties();
// Then
assertThat( Iterators.asList( added ),
equalTo( asList( new PropertyKeyValue( 2, Values.of( "Hello" ) ) ) ) );
}
@Test
public void shouldListAddedPropertiesEvenIfPropertiesHaveBeenReplaced()
{
// Given
PropertyContainerStateImpl state = new PropertyContainerStateImpl( 1 );
state.addProperty( 1, Values.of( "Hello" ) );
state.addProperty( 1, Values.of( "WAT" ) );
state.addProperty( 2, Values.of( "Hello" ) );
// When
Iterator<StorageProperty> added = state.addedProperties();
// Then
assertThat( Iterators.asList( added ),
equalTo( asList(
new PropertyKeyValue( 1, Values.of( "WAT" ) ),
new PropertyKeyValue( 2, Values.of( "Hello" ) ) )
) );
}
@Test
public void shouldConvertAddRemoveToChange()
{
// Given
PropertyContainerStateImpl state = new PropertyContainerStateImpl( 1 );
// When
state.removeProperty( 4 );
state.addProperty( 4, Values.of( "another value" ) );
// Then
assertThat( Iterators.asList( state.changedProperties() ),
equalTo( asList( new PropertyKeyValue( 4, Values.of( "another value" ) ) ) ) );
assertFalse( state.addedProperties().hasNext() );
assertFalse( state.removedProperties().hasNext() );
}
}