org.neo4j.server.database.TestLifecycleManagedDatabase.java Source code

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Here is the source code for org.neo4j.server.database.TestLifecycleManagedDatabase.java

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/*
 * Copyright (c) 2002-2015 "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.server.database;

import java.io.File;
import java.io.IOException;
import java.util.Map;

import org.apache.commons.io.FileUtils;
import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;

import org.neo4j.graphdb.factory.GraphDatabaseSettings;
import org.neo4j.kernel.GraphDatabaseDependencies;
import org.neo4j.kernel.InternalAbstractGraphDatabase.Dependencies;
import org.neo4j.kernel.StoreLockException;
import org.neo4j.kernel.configuration.Config;
import org.neo4j.logging.AssertableLogProvider;
import org.neo4j.test.ImpermanentDatabaseRule;
import org.neo4j.test.Mute;

import static org.hamcrest.Matchers.is;
import static org.hamcrest.core.IsInstanceOf.instanceOf;
import static org.junit.Assert.assertThat;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import static org.neo4j.helpers.collection.MapUtil.stringMap;
import static org.neo4j.logging.AssertableLogProvider.inLog;
import static org.neo4j.server.ServerTestUtils.createTempDir;
import static org.neo4j.test.Mute.muteAll;

public class TestLifecycleManagedDatabase {
    @Rule
    public Mute mute = muteAll();

    private final AssertableLogProvider logProvider = new AssertableLogProvider();

    @Rule
    public ImpermanentDatabaseRule dbRule = new ImpermanentDatabaseRule(logProvider);

    private File databaseDirectory;
    private Database theDatabase;
    private boolean deletionFailureOk;
    private LifecycleManagingDatabase.GraphFactory dbFactory;

    @Before
    public void setup() throws Exception {
        databaseDirectory = createTempDir();

        dbFactory = mock(LifecycleManagingDatabase.GraphFactory.class);
        when(dbFactory.newGraphDatabase(any(String.class), any(Map.class), any(Dependencies.class)))
                .thenReturn(dbRule.getGraphDatabaseAPI());
        theDatabase = newDatabase();
    }

    private LifecycleManagingDatabase newDatabase() {
        Config dbConfig = new Config(
                stringMap(GraphDatabaseSettings.store_dir.name(), databaseDirectory.getAbsolutePath()));
        return new LifecycleManagingDatabase(dbConfig, dbFactory,
                GraphDatabaseDependencies.newDependencies().userLogProvider(logProvider));
    }

    @After
    public void shutdownDatabase() throws Throwable {
        this.theDatabase.stop();

        try {
            FileUtils.forceDelete(databaseDirectory);
        } catch (IOException e) {
            // TODO Removed this when EmbeddedGraphDatabase startup failures
            // closes its
            // files properly.
            if (!deletionFailureOk) {
                throw e;
            }
        }
    }

    @Test
    public void shouldLogOnSuccessfulStartup() throws Throwable {
        theDatabase.start();

        logProvider.assertAtLeastOnce(inLog(LifecycleManagingDatabase.class).info("Successfully started database"));
    }

    @Test
    public void shouldShutdownCleanly() throws Throwable {
        theDatabase.start();
        theDatabase.stop();

        logProvider.assertAtLeastOnce(inLog(LifecycleManagingDatabase.class).info("Successfully stopped database"));
    }

    @Test
    public void shouldComplainIfDatabaseLocationIsAlreadyInUse() throws Throwable {
        deletionFailureOk = true;
        theDatabase.start();

        LifecycleManagingDatabase db = newDatabase();

        try {
            db.start();
        } catch (RuntimeException e) {
            // Wrapped in a lifecycle exception, needs to be dug out
            assertThat(e.getCause().getCause(), instanceOf(StoreLockException.class));
        }
    }

    @Test
    public void shouldBeAbleToGetLocation() throws Throwable {
        theDatabase.start();
        assertThat(theDatabase.getLocation(), is(databaseDirectory.getAbsolutePath()));
    }
}