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AwaitIndexProcedureTest.java
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AwaitIndexProcedureTest.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.builtinprocs;
import org.junit.Test;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;
import org.neo4j.kernel.api.schema.NodePropertyDescriptor;
import org.neo4j.kernel.api.ReadOperations;
import org.neo4j.kernel.api.exceptions.ProcedureException;
import org.neo4j.kernel.api.exceptions.Status;
import org.neo4j.kernel.api.exceptions.index.IndexNotFoundKernelException;
import org.neo4j.kernel.api.exceptions.schema.IndexSchemaRuleNotFoundException;
import org.neo4j.kernel.api.exceptions.schema.SchemaRuleNotFoundException;
import org.neo4j.kernel.api.schema.IndexDescriptor;
import org.neo4j.kernel.api.schema.IndexDescriptorFactory;
import org.neo4j.kernel.api.index.InternalIndexState;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.not;
import static org.hamcrest.Matchers.nullValue;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.fail;
import static org.mockito.Matchers.any;
import static org.mockito.Matchers.anyObject;
import static org.mockito.Matchers.anyString;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import static org.neo4j.kernel.api.index.InternalIndexState.FAILED;
import static org.neo4j.kernel.api.index.InternalIndexState.ONLINE;
import static org.neo4j.kernel.api.index.InternalIndexState.POPULATING;
import static org.neo4j.test.assertion.Assert.assertEventually;
public class AwaitIndexProcedureTest
{
private static final int timeout = 40;
private static final TimeUnit timeoutUnits = TimeUnit.MILLISECONDS;
private final ReadOperations operations = mock( ReadOperations.class );
private final IndexProcedures procedure = new IndexProcedures( new StubKernelTransaction( operations ), null );
private final NodePropertyDescriptor descriptor = new NodePropertyDescriptor( 123, 456 );
private final NodePropertyDescriptor anyDescriptor = new NodePropertyDescriptor( 0, 0 );
private final IndexDescriptor anyIndex = IndexDescriptorFactory.of( anyDescriptor );
@Test
public void shouldThrowAnExceptionIfTheLabelDoesntExist() throws ProcedureException
{
when( operations.labelGetForName( "NonExistentLabel" ) ).thenReturn( -1 );
try
{
procedure.awaitIndex( ":NonExistentLabel(prop)", timeout, timeoutUnits );
fail( "Expected an exception" );
}
catch ( ProcedureException e )
{
assertThat( e.status(), is( Status.Schema.LabelAccessFailed ) );
}
}
@Test
public void shouldThrowAnExceptionIfThePropertyKeyDoesntExist() throws ProcedureException
{
when( operations.propertyKeyGetForName( "nonExistentProperty" ) ).thenReturn( -1 );
try
{
procedure.awaitIndex( ":Label(nonExistentProperty)", timeout, timeoutUnits );
fail( "Expected an exception" );
}
catch ( ProcedureException e )
{
assertThat( e.status(), is( Status.Schema.PropertyKeyAccessFailed ) );
}
}
@Test
public void shouldLookUpTheIndexByLabelIdAndPropertyKeyId()
throws ProcedureException, SchemaRuleNotFoundException, IndexNotFoundKernelException
{
when( operations.labelGetForName( anyString() ) ).thenReturn( descriptor.getLabelId() );
when( operations.propertyKeyGetForName( anyString() ) ).thenReturn( descriptor.getPropertyKeyId() );
when( operations.indexGetForLabelAndPropertyKey( anyObject() ) ).thenReturn( anyIndex );
when( operations.indexGetState( any( IndexDescriptor.class ) ) ).thenReturn( ONLINE );
procedure.awaitIndex( ":Person(name)", timeout, timeoutUnits );
verify( operations ).indexGetForLabelAndPropertyKey( descriptor );
}
@Test
public void shouldThrowAnExceptionIfTheIndexHasFailed()
throws SchemaRuleNotFoundException, IndexNotFoundKernelException
{
when( operations.labelGetForName( anyString() ) ).thenReturn( 0 );
when( operations.propertyKeyGetForName( anyString() ) ).thenReturn( 0 );
when( operations.indexGetForLabelAndPropertyKey( anyObject() ) ).thenReturn( anyIndex );
when( operations.indexGetState( any( IndexDescriptor.class ) ) ).thenReturn( FAILED );
try
{
procedure.awaitIndex( ":Person(name)", timeout, timeoutUnits );
fail( "Expected an exception" );
}
catch ( ProcedureException e )
{
assertThat( e.status(), is( Status.Schema.IndexCreationFailed ) );
}
}
@Test
public void shouldThrowAnExceptionIfTheIndexDoesNotExist()
throws SchemaRuleNotFoundException, IndexNotFoundKernelException
{
when( operations.labelGetForName( anyString() ) ).thenReturn( 0 );
when( operations.propertyKeyGetForName( anyString() ) ).thenReturn( 0 );
when( operations.indexGetForLabelAndPropertyKey( anyObject() ) )
.thenThrow( new IndexSchemaRuleNotFoundException( anyDescriptor ) );
try
{
procedure.awaitIndex( ":Person(name)", timeout, timeoutUnits );
fail( "Expected an exception" );
}
catch ( ProcedureException e )
{
assertThat( e.status(), is( Status.Schema.IndexNotFound ) );
}
}
@Test
public void shouldBlockUntilTheIndexIsOnline() throws SchemaRuleNotFoundException, IndexNotFoundKernelException,
InterruptedException
{
when( operations.labelGetForName( anyString() ) ).thenReturn( 0 );
when( operations.propertyKeyGetForName( anyString() ) ).thenReturn( 0 );
when( operations.indexGetForLabelAndPropertyKey( anyObject() ) ).thenReturn( anyIndex );
AtomicReference<InternalIndexState> state = new AtomicReference<>( POPULATING );
when( operations.indexGetState( any( IndexDescriptor.class ) ) ).then( new Answer<InternalIndexState>()
{
@Override
public InternalIndexState answer( InvocationOnMock invocationOnMock ) throws Throwable
{
return state.get();
}
} );
AtomicBoolean done = new AtomicBoolean( false );
new Thread( () ->
{
try
{
procedure.awaitIndex( ":Person(name)", timeout, timeoutUnits );
}
catch ( ProcedureException e )
{
throw new RuntimeException( e );
}
done.set( true );
} ).start();
assertThat( done.get(), is( false ) );
state.set( ONLINE );
assertEventually( "Procedure did not return after index was online",
done::get, is( true ), 10, TimeUnit.SECONDS );
}
@Test
public void shouldTimeoutIfTheIndexTakesTooLongToComeOnline()
throws InterruptedException, SchemaRuleNotFoundException, IndexNotFoundKernelException
{
when( operations.labelGetForName( anyString() ) ).thenReturn( 0 );
when( operations.propertyKeyGetForName( anyString() ) ).thenReturn( 0 );
when( operations.indexGetForLabelAndPropertyKey( anyObject() ) ).thenReturn( anyIndex );
when( operations.indexGetState( any( IndexDescriptor.class ) ) ).thenReturn( POPULATING );
AtomicReference<ProcedureException> exception = new AtomicReference<>();
new Thread( () ->
{
try
{
procedure.awaitIndex( ":Person(name)", timeout, timeoutUnits );
}
catch ( ProcedureException e )
{
exception.set( e );
}
} ).start();
assertEventually( "Procedure did not time out", exception::get, not( nullValue() ), 10, TimeUnit.SECONDS );
//noinspection ThrowableResultOfMethodCallIgnored
assertThat( exception.get().status(), is( Status.Procedure.ProcedureTimedOut ) );
}
}