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PerformanceTest.scala
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PerformanceTest.scala
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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.cypher.performance
import java.io.File
import java.util.Collections
import org.neo4j.cypher.internal.frontend.v3_1.test_helpers.CypherFunSuite
import org.neo4j.graphdb.factory.GraphDatabaseFactory
import org.neo4j.graphdb.{GraphDatabaseService, Node, RelationshipType}
import scala.util.Random
class PerformanceTest extends CypherFunSuite {
val r = new Random()
var db: GraphDatabaseService = null
override def beforeEach() {
super.beforeEach()
db = new GraphDatabaseFactory().newEmbeddedDatabase(new File("target/db"))
}
override def afterEach() {
db.shutdown()
super.afterEach()
}
ignore("createDatabase") {
val startPoints = (0 to 10).map(x => {
val tx = db.beginTx()
val a = createNode()
(0 to 10).foreach(y => {
val b = createNode()
relate(a, b)
(0 to 50).foreach(z => {
val c = createNode()
val d = createNode()
relate(b, c)
relate(b, d)
})
})
tx.success()
tx.close()
a
})
val t0: Double = System.nanoTime
val result = db.execute("start a=node({root}) match a-->b-->c, b-->d return a,count(*)",
Collections.singletonMap("root", startPoints), 0)
result.resultAsString()
result.close()
val t1: Double = System.nanoTime
println("Elapsed time " + (t1 - t0) / 1000000.0 + " msecs")
}
def createNode() = {
db.createNode()
}
def relate(a: Node, b: Node) {
a.createRelationshipTo(b, RelationshipType.withName("r"))
}
}