| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.tinkerpop.gremlin.process.traversal.strategy.verification; |
| |
| import org.apache.tinkerpop.gremlin.process.traversal.Order; |
| import org.apache.tinkerpop.gremlin.process.traversal.Scope; |
| import org.apache.tinkerpop.gremlin.process.traversal.Traversal; |
| import org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategies; |
| import org.apache.tinkerpop.gremlin.process.traversal.Traverser; |
| import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__; |
| import org.apache.tinkerpop.gremlin.process.traversal.util.DefaultTraversalStrategies; |
| import org.apache.tinkerpop.gremlin.structure.Column; |
| import org.apache.tinkerpop.gremlin.structure.T; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| import java.util.Arrays; |
| |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| /** |
| * @author Marko A. Rodriguez (http://markorodriguez.com) |
| */ |
| @RunWith(Parameterized.class) |
| public class LambdaRestrictionStrategyTest { |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static Iterable<Object[]> data() { |
| return Arrays.asList(new Object[][]{ |
| {"filter(x->true)", __.filter(x -> true), false}, |
| {"map(Traverser::get)", __.map(Traverser::get), false}, |
| {"sideEffect(x -> {int i = 1+1;})", __.sideEffect(x -> { |
| int i = 1 + 1; |
| }), false}, |
| {"select('a','b').by(Object::toString)", __.select("a", "b").by(Object::toString), false}, |
| {"order().by((a,b)->a.compareTo(b))", __.order().by((a, b) -> ((Integer) a).compareTo((Integer) b)), false}, |
| {"order(local).by((a,b)->a.compareTo(b))", __.order(Scope.local).by((a, b) -> ((Integer) a).compareTo((Integer) b)), false}, |
| {"__.choose(v->v.toString().equals(\"marko\"),__.out(),__.in())", __.choose(v -> v.toString().equals("marko"), __.out(), __.in()), false}, |
| {"order(local).by(values,decr)", __.order(Scope.local).by(Column.values, (a, b) -> ((Double) a).compareTo((Double) b)), false}, |
| // |
| {"order(local).by(values,decr)", __.order(Scope.local).by(Column.values, Order.decr), true}, |
| {"order().by(label,decr)", __.order().by(T.label, Order.decr), true}, |
| {"groupCount().by(label)", __.groupCount().by(T.label), true}, |
| }); |
| } |
| |
| @Parameterized.Parameter(value = 0) |
| public String name; |
| |
| @Parameterized.Parameter(value = 1) |
| public Traversal traversal; |
| |
| @Parameterized.Parameter(value = 2) |
| public boolean allow; |
| |
| @Test |
| public void shouldBeVerifiedIllegal() { |
| final TraversalStrategies strategies = new DefaultTraversalStrategies(); |
| strategies.addStrategies(LambdaRestrictionStrategy.instance()); |
| traversal.asAdmin().setStrategies(strategies); |
| if (allow) { |
| traversal.asAdmin().applyStrategies(); |
| } else { |
| try { |
| traversal.asAdmin().applyStrategies(); |
| fail("The strategy should not allow lambdas: " + this.traversal); |
| } catch (VerificationException ise) { |
| assertTrue(ise.getMessage().contains("lambda")); |
| } |
| } |
| } |
| } |