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GraphDatabaseFacadeFactoryTest.java
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GraphDatabaseFacadeFactoryTest.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 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;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.mockito.Mockito;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import java.io.File;
import java.util.Collections;
import java.util.Map;
import org.neo4j.graphdb.mockfs.EphemeralFileSystemAbstraction;
import org.neo4j.helpers.Exceptions;
import org.neo4j.kernel.impl.factory.DataSourceModule;
import org.neo4j.kernel.impl.factory.DatabaseInfo;
import org.neo4j.kernel.impl.factory.EditionModule;
import org.neo4j.kernel.impl.factory.GraphDatabaseFacade;
import org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory;
import org.neo4j.kernel.impl.factory.PlatformModule;
import org.neo4j.kernel.lifecycle.LifeSupport;
import org.neo4j.kernel.lifecycle.Lifecycle;
import org.neo4j.kernel.monitoring.Monitors;
import org.neo4j.test.rule.TargetDirectory;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.RETURNS_MOCKS;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.doThrow;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
public class GraphDatabaseFacadeFactoryTest
{
@Rule
public final TargetDirectory.TestDirectory dir =
TargetDirectory.testDirForTestWithEphemeralFS( new EphemeralFileSystemAbstraction(), getClass() );
private final GraphDatabaseFacade mockFacade = mock( GraphDatabaseFacade.class );
private final GraphDatabaseFacadeFactory.Dependencies deps =
mock( GraphDatabaseFacadeFactory.Dependencies.class, RETURNS_MOCKS );
@Before
public void setup()
{
when( deps.monitors() ).thenReturn( new Monitors() );
}
@Test
public void shouldThrowAppropriateExceptionIfStartFails()
{
// Given
RuntimeException startupError = new RuntimeException();
GraphDatabaseFacadeFactory db = newFaultyGraphDatabaseFacadeFactory( startupError );
try
{
// When
db.initFacade( dir.graphDbDir(), Collections.<String,String>emptyMap(), deps, mockFacade );
fail( "Should have thrown " + RuntimeException.class );
}
catch ( RuntimeException exception )
{
// Then
assertEquals( startupError, Exceptions.rootCause( exception ) );
}
}
@Test
public void shouldThrowAppropriateExceptionIfBothStartAndShutdownFail()
{
// Given
RuntimeException startupError = new RuntimeException();
RuntimeException shutdownError = new RuntimeException();
GraphDatabaseFacadeFactory db = newFaultyGraphDatabaseFacadeFactory( startupError );
doThrow( shutdownError ).when( mockFacade ).shutdown();
try
{
// When
db.initFacade( dir.graphDbDir(), Collections.<String,String>emptyMap(), deps, mockFacade );
fail( "Should have thrown " + RuntimeException.class );
}
catch ( RuntimeException exception )
{
// Then
assertEquals( shutdownError, exception );
assertEquals( startupError, Exceptions.rootCause( exception.getSuppressed()[0] ) );
}
}
private GraphDatabaseFacadeFactory newFaultyGraphDatabaseFacadeFactory( final RuntimeException startupError )
{
return new GraphDatabaseFacadeFactory( DatabaseInfo.UNKNOWN,
(p) -> Mockito.mock( EditionModule.class, Mockito.RETURNS_DEEP_STUBS ))
{
@Override
protected PlatformModule createPlatform( File storeDir, Map<String,String> params,
Dependencies dependencies, GraphDatabaseFacade graphDatabaseFacade )
{
final LifeSupport lifeMock = mock( LifeSupport.class );
doThrow( startupError ).when( lifeMock ).start();
doAnswer( invocation -> invocation.getArguments()[0] ).when( lifeMock ).add( any( Lifecycle.class ) );
return new PlatformModule( storeDir, params, databaseInfo, dependencies, graphDatabaseFacade )
{
@Override
public LifeSupport createLife()
{
return lifeMock;
}
};
}
@Override
protected DataSourceModule createDataSource(
Dependencies dependencies, PlatformModule platformModule, EditionModule editionModule )
{
return null;
}
};
}
}