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/*
* 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"));
}
}
}
}