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PlanEventHorizonTest.scala
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PlanEventHorizonTest.scala
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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.cypher.internal.compiler.v3_4.planner.logical
import org.neo4j.cypher.internal.compiler.v3_4.planner.ProcedureCallProjection
import org.neo4j.cypher.internal.compiler.v3_4.planner.logical.steps.LogicalPlanProducer
import org.neo4j.cypher.internal.frontend.v3_4.phases.InternalNotificationLogger
import org.neo4j.cypher.internal.frontend.v3_4.semantics.SemanticTable
import org.neo4j.cypher.internal.ir.v3_4.{CardinalityEstimation, RegularPlannerQuery, RegularQueryProjection}
import org.neo4j.cypher.internal.planner.v3_4.spi.PlanContext
import org.neo4j.cypher.internal.util.v3_4.attribution.SequentialIdGen
import org.neo4j.cypher.internal.util.v3_4.test_helpers.CypherFunSuite
import org.neo4j.cypher.internal.util.v3_4.{Cardinality, DummyPosition}
import org.neo4j.cypher.internal.v3_4.expressions.SignedDecimalIntegerLiteral
import org.neo4j.cypher.internal.v3_4.logical.plans._
class PlanEventHorizonTest extends CypherFunSuite {
implicit val idGen = new SequentialIdGen()
val pos = DummyPosition(1)
val context = LogicalPlanningContext(mock[PlanContext], LogicalPlanProducer(mock[Metrics.CardinalityModel], LogicalPlan.LOWEST_TX_LAYER),
mock[Metrics], SemanticTable(), mock[QueryGraphSolver], notificationLogger = mock[InternalNotificationLogger])
test("should do projection if necessary") {
// Given
val literal = SignedDecimalIntegerLiteral("42")(pos)
val pq = RegularPlannerQuery(horizon = RegularQueryProjection(Map("a" -> literal)))
val inputPlan = Argument()(CardinalityEstimation.lift(RegularPlannerQuery(), Cardinality(1)))
// When
val producedPlan = PlanEventHorizon(pq, inputPlan, context)
// Then
producedPlan should equal(Projection(inputPlan, Map("a" -> literal))(CardinalityEstimation.lift(RegularPlannerQuery(), Cardinality(1))))
}
test("should plan procedure calls") {
// Given
val literal = SignedDecimalIntegerLiteral("42")(pos)
val call = mock[ResolvedCall]
val pq = RegularPlannerQuery(horizon = ProcedureCallProjection(call))
val inputPlan = Argument()(CardinalityEstimation.lift(RegularPlannerQuery(), Cardinality(1)))
// When
val producedPlan = PlanEventHorizon(pq, inputPlan, context)
// Then
producedPlan should equal(ProcedureCall(inputPlan, call)(CardinalityEstimation.lift(RegularPlannerQuery(), Cardinality(1))))
}
}