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TriadicSelectionPipeTest.scala
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TriadicSelectionPipeTest.scala
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/*
* Copyright (c) 2002-2018 "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.runtime.interpreted.pipes
import org.eclipse.collections.api.LongIterable
import org.neo4j.cypher.internal.runtime.interpreted.{ExecutionContext, QueryStateHelper}
import org.neo4j.cypher.internal.util.v3_5.symbols._
import org.neo4j.cypher.internal.util.v3_5.test_helpers.CypherFunSuite
import org.neo4j.kernel.impl.core.NodeProxy
import org.neo4j.kernel.impl.util.ValueUtils
import org.neo4j.values.AnyValue
import org.neo4j.values.virtual.NodeValue
import scala.collection.{Map, mutable}
class TriadicSelectionPipeTest extends CypherFunSuite {
test("triadic from input with no cycles") {
val input = createFakePipeWith(Array("a", "b"), 0 -> List(1, 2))
val target = createFakeArgumentPipeWith(Array("b", "c"),
1 -> List(11, 12),
2 -> List(21, 22)
)
val pipe = TriadicSelectionPipe(false, input, "a", "b", "c", target)()
val queryState = QueryStateHelper.empty
val ids = pipe.createResults(queryState).map(ctx => ctx("c")).map { case y: NodeValue =>
y.id()
}.toSet
ids should equal(Set(11, 12, 21, 22))
}
test("triadic from input with cycles and negative predicate") {
val input = createFakePipeWith(Array("a", "b"), 0 -> List(1, 2))
val target = createFakeArgumentPipeWith(Array("b", "c"),
1 -> List(11, 12, 2),
2 -> List(21, 22)
)
val pipe = TriadicSelectionPipe(false, input, "a", "b", "c", target)()
val queryState = QueryStateHelper.empty
val ids = pipe.createResults(queryState).map(ctx => ctx("c")).map { case y: NodeValue =>
y.id()
}.toSet
ids should equal(Set(11, 12, 21, 22))
}
test("triadic from input with cycles and positive predicate") {
val input = createFakePipeWith(Array("a", "b"), 0 -> List(1, 2))
val target = createFakeArgumentPipeWith(Array("b", "c"),
1 -> List(11, 12, 2),
2 -> List(21, 22)
)
val pipe = TriadicSelectionPipe(true, input, "a", "b", "c", target)()
val queryState = QueryStateHelper.empty
val ids = pipe.createResults(queryState).map(ctx => ctx("c")).map { case y: NodeValue =>
y.id()
}.toSet
ids should equal(Set(2))
}
test("triadic from input with two different sources and no cycles") {
val input = createFakePipeWith(Array("a", "b"), 0 -> List(1, 2), 3 -> List(2, 4))
val target = createFakeArgumentPipeWith(Array("b", "c"),
1 -> List(11, 12),
2 -> List(21, 22),
4 -> List(41, 42)
)
val pipe = TriadicSelectionPipe(false, input, "a", "b", "c", target)()
val queryState = QueryStateHelper.empty
//println(pipe.createResults(queryState).toList)
val ids = pipe.createResults(queryState).map(ctx => (ctx("a"), ctx("c"))).map {
case (a: NodeValue, c: NodeValue) =>
(a.id(), c.id())
}.toSet
ids should equal(Set((0, 11), (0, 12), (0, 21), (0, 22), (3, 21), (3, 22), (3, 41), (3, 42)))
}
test("triadic from input with two different sources and cycles with negative predicate") {
val input = createFakePipeWith(Array("a", "b"), 0 -> List(1, 2), 3 -> List(2, 4))
val target = createFakeArgumentPipeWith(Array("b", "c"),
1 -> List(11, 12, 2), // same 'a' so should fail predicate
2 -> List(21, 22),
4 -> List(41, 42, 1) // different 'a' so should pass predicate
)
val pipe = TriadicSelectionPipe(false, input, "a", "b", "c", target)()
val queryState = QueryStateHelper.empty
val ids = pipe.createResults(queryState).map(ctx => (ctx("a"), ctx("c"))).map {
case (a: NodeValue, c: NodeValue) =>
(a.id(), c.id())
}.toSet
ids should equal(Set((0, 11), (0, 12), (0, 21), (0, 22), (3, 1), (3, 21), (3, 22), (3, 41), (3, 42)))
}
test("triadic from input with two different sources and cycles with positive predicate") {
val input = createFakePipeWith(Array("a", "b"), 0 -> List(1, 2), 3 -> List(2, 4))
val target = createFakeArgumentPipeWith(Array("b", "c"),
1 -> List(11, 12, 2), // same 'a' so should pass predicate
2 -> List(21, 22),
4 -> List(41, 42, 1) // different 'a' so should fail predicate
)
val pipe = TriadicSelectionPipe(true, input, "a", "b", "c", target)()
val queryState = QueryStateHelper.empty
val ids = pipe.createResults(queryState).map(ctx => (ctx("a"), ctx("c"))).map {
case (a: NodeValue, c: NodeValue) =>
(a.id(), c.id())
}.toSet
ids should equal(Set((0, 2)))
}
test("triadic from input with repeats") {
val input = createFakePipeWith(Array("a", "b"), 0 -> List(1, 2, 1), 3 -> List(2, 4, 4))
val target = createFakeArgumentPipeWith(Array("b", "c"),
1 -> List(11, 12),
2 -> List(21, 22),
4 -> List(41, 42)
)
val pipe = TriadicSelectionPipe(false, input, "a", "b", "c", target)()
val queryState = QueryStateHelper.empty
val ids = pipe.createResults(queryState).map(ctx => (ctx("a"), ctx("c"))).map {
case (a: NodeValue, c: NodeValue) =>
(a.id, c.id)
}.toSet
ids should equal(Set((0, 11), (0, 12), (0, 21), (0, 22), (3, 21), (3, 22), (3, 41), (3, 42)))
}
test("traidic ignores nulls") {
val input = createFakePipeWith(Array("a", "b"), 0 -> List(1, 2, null), 3 -> List(2, null, 4))
val target = createFakeArgumentPipeWith(Array("b", "c"),
1 -> List(11, 12),
2 -> List(21, 22),
4 -> List(41, 42)
)
val pipe = TriadicSelectionPipe(false, input, "a", "b", "c", target)()
val queryState = QueryStateHelper.empty
val ids = pipe.createResults(queryState).map(ctx => (ctx("a"), ctx("c"))).map {
case (a: NodeValue, c: NodeValue) =>
(a.id, c.id())
}.toSet
ids should equal(Set((0, 11), (0, 12), (0, 21), (0, 22), (3, 21), (3, 22), (3, 41), (3, 42)))
}
private def asScalaSet(in: LongIterable): Set[Long] = {
val builder = Set.newBuilder[Long]
val iter = in.longIterator()
while (iter.hasNext) {
builder += iter.next()
}
builder.result()
}
// private def createFakeDataWith(keys: Array[String], data: (Int, List[Any])*) = {
// def nodeWithId(id: Long) = {
// VirtualValues.nodeValue(id, Values.stringArray(), VirtualValues.EMPTY_MAP)
// }
//
// data.flatMap {
// case (x, related) =>
// related.map {
// case a: Int => Map(keys(1) -> nodeWithId(a), keys(0) -> nodeWithId(x))
// case null => Map(keys(1) -> Values.NO_VALUE, keys(0) -> nodeWithId(x))
// }
// }
// }
private def createFakeDataWith(keys: Array[String], data: (Int, List[Any])*) = {
def nodeWithId(id: Long) = {
new NodeProxy(null, id)
}
data.flatMap {
case (x, related) =>
related.map {
case a: Int => Map(keys(1) -> nodeWithId(a), keys(0) -> nodeWithId(x))
case null => Map(keys(1) -> null, keys(0) -> nodeWithId(x))
}
}
}
private def createFakePipeWith(keys: Array[String], data: (Int, List[Any])*): FakePipe = {
val in = createFakeDataWith(keys, data: _*)
new FakePipe(in, keys(0) -> CTNode, keys(1) -> CTNode)
}
private def createFakeArgumentPipeWith(keys: Array[String], data: (Int, List[Any])*): FakePipe = {
val in = createFakeDataWith(keys, data: _*)
new FakePipe(in, keys(0) -> CTNode, keys(1) -> CTNode) {
override def internalCreateResults(state: QueryState): Iterator[ExecutionContext] = state.initialContext match {
case Some(context: ExecutionContext) =>
in.flatMap { m =>
if (ValueUtils.of(m(keys(0))) == context(keys(0))) {
val stringToProxy: mutable.Map[String, AnyValue] = collection.mutable.Map(m.mapValues(ValueUtils.of).toSeq: _*)
Some(ExecutionContext(stringToProxy))
}
else None
}.iterator
case _ => Iterator.empty
}
}
}
}