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ConstraintDescriptorFactoryTest.java
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ConstraintDescriptorFactoryTest.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 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.api.schema_new.constaints;
import org.junit.Test;
import org.neo4j.kernel.api.schema_new.SchemaDescriptorFactory;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import static org.neo4j.kernel.api.schema_new.SchemaTestUtil.assertEquality;
import static org.neo4j.kernel.api.schema_new.SchemaTestUtil.simpleNameLookup;
public class ConstraintDescriptorFactoryTest
{
private static final int LABEL_ID = 0;
private static final int REL_TYPE_ID = 0;
@Test
public void shouldCreateExistsConstraintDescriptors()
{
ConstraintDescriptor desc;
desc = ConstraintDescriptorFactory.existsForLabel( LABEL_ID, 1 );
assertThat( desc.type(), equalTo( ConstraintDescriptor.Type.EXISTS ) );
assertThat( desc.schema(), equalTo( SchemaDescriptorFactory.forLabel( LABEL_ID, 1 ) ) );
desc = ConstraintDescriptorFactory.existsForRelType( REL_TYPE_ID, 1 );
assertThat( desc.type(), equalTo( ConstraintDescriptor.Type.EXISTS ) );
assertThat( desc.schema(), equalTo( SchemaDescriptorFactory.forRelType( REL_TYPE_ID, 1 ) ) );
}
@Test
public void shouldCreateUniqueConstraintDescriptors()
{
ConstraintDescriptor desc;
desc = ConstraintDescriptorFactory.uniqueForLabel( LABEL_ID, 1 );
assertThat( desc.type(), equalTo( ConstraintDescriptor.Type.UNIQUE ) );
assertThat( desc.schema(), equalTo( SchemaDescriptorFactory.forLabel( LABEL_ID, 1 ) ) );
desc = ConstraintDescriptorFactory.uniqueForRelType( REL_TYPE_ID, 1 );
assertThat( desc.type(), equalTo( ConstraintDescriptor.Type.UNIQUE ) );
assertThat( desc.schema(), equalTo( SchemaDescriptorFactory.forRelType( REL_TYPE_ID, 1 ) ) );
}
@Test
public void shouldCreateConstraintDescriptorsFromSchema()
{
ConstraintDescriptor desc;
desc = ConstraintDescriptorFactory.uniqueForSchema( SchemaDescriptorFactory.forLabel( LABEL_ID, 1 ) );
assertThat( desc.type(), equalTo( ConstraintDescriptor.Type.UNIQUE ) );
assertThat( desc.schema(), equalTo( SchemaDescriptorFactory.forLabel( LABEL_ID, 1 ) ) );
desc = ConstraintDescriptorFactory.existsForSchema( SchemaDescriptorFactory.forRelType( REL_TYPE_ID, 1 ) );
assertThat( desc.type(), equalTo( ConstraintDescriptor.Type.EXISTS) );
assertThat( desc.schema(), equalTo( SchemaDescriptorFactory.forRelType( REL_TYPE_ID, 1 ) ) );
}
@Test
public void shouldCreateEqualDescriptors()
{
ConstraintDescriptor desc1;
ConstraintDescriptor desc2;
desc1 = ConstraintDescriptorFactory.uniqueForLabel( LABEL_ID, 1 );
desc2 = ConstraintDescriptorFactory.uniqueForLabel( LABEL_ID, 1 );
assertEquality( desc1, desc2 );
desc1 = ConstraintDescriptorFactory.existsForLabel( LABEL_ID, 1 );
desc2 = ConstraintDescriptorFactory.existsForLabel( LABEL_ID, 1 );
assertEquality( desc1, desc2 );
desc1 = ConstraintDescriptorFactory.uniqueForRelType( REL_TYPE_ID, 1 );
desc2 = ConstraintDescriptorFactory.uniqueForRelType( REL_TYPE_ID, 1 );
assertEquality( desc1, desc2 );
desc1 = ConstraintDescriptorFactory.existsForRelType( LABEL_ID, 1 );
desc2 = ConstraintDescriptorFactory.existsForRelType( LABEL_ID, 1 );
assertEquality( desc1, desc2 );
}
@Test
public void shouldGiveNiceUserDescriptions()
{
assertThat( ConstraintDescriptorFactory.existsForLabel( 1, 2 ).userDescription( simpleNameLookup ),
equalTo( "Constraint( EXISTS, :Label1(property2) )" ) );
assertThat( ConstraintDescriptorFactory.existsForRelType( 1, 3 ).userDescription( simpleNameLookup ),
equalTo( "Constraint( EXISTS, -[:RelType1(property3)]- )" ) );
assertThat( ConstraintDescriptorFactory.uniqueForLabel( 2, 4 ).userDescription( simpleNameLookup ),
equalTo( "Constraint( UNIQUE, :Label2(property4) )" ) );
assertThat( ConstraintDescriptorFactory.uniqueForRelType( 2, 5 ).userDescription( simpleNameLookup ),
equalTo( "Constraint( UNIQUE, -[:RelType2(property5)]- )" ) );
}
}