| /* |
| * 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.FeatureRequirement; |
| import org.apache.tinkerpop.gremlin.process.AbstractGremlinProcessTest; |
| import org.apache.tinkerpop.gremlin.structure.RemoteGraph; |
| import org.apache.tinkerpop.gremlin.process.traversal.Traversal; |
| import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource; |
| import org.apache.tinkerpop.gremlin.structure.Graph; |
| import org.junit.Test; |
| |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.hamcrest.core.StringContains.containsString; |
| import static org.junit.Assert.fail; |
| |
| /** |
| * @author Stephen Mallette (http://stephen.genoprime.com) |
| */ |
| public class ReadOnlyStrategyProcessTest extends AbstractGremlinProcessTest { |
| @Test |
| public void shouldTraverseV() { |
| assertTraversal(create().V(), false); |
| } |
| |
| @Test |
| public void shouldTraverseV_out() { |
| assertTraversal(create().V().out(), false); |
| } |
| |
| @Test |
| public void shouldTraverseV_in() { |
| assertTraversal(create().V().in(), false); |
| } |
| |
| @Test |
| public void shouldTraverseV_in_in() { |
| assertTraversal(create().V().in(), false); |
| } |
| |
| @Test |
| public void shouldTraverseE() { |
| assertTraversal(create().E(), false); |
| } |
| |
| @Test |
| @FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_ADD_EDGES) |
| public void shouldNotTraverseV_out_addInE() { |
| assertTraversal(create().V().as("a").out().addE("test").from("a"), true); |
| } |
| |
| @Test |
| @FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_ADD_EDGES) |
| public void shouldNotTraverseV_out_addOutE() { |
| assertTraversal(create().V().as("a").out().addE("test").to("a"), true); |
| } |
| |
| @Test |
| @FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_ADD_EDGES) |
| public void shouldNotTraverseV_In_addInE() { |
| assertTraversal(create().V().as("a").in().addE("test").from("a"), true); |
| } |
| |
| @Test |
| @FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_ADD_EDGES) |
| public void shouldNotTraverseV_In_addOutE() { |
| assertTraversal(create().V().as("a").in().addE("test").to("a"), true); |
| } |
| |
| @Test |
| @FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_ADD_EDGES) |
| public void shouldNotTraverseV_In_addEXINX() { |
| assertTraversal(create().V().as("a").in().addE("test").from("a"), true); |
| } |
| |
| @Test |
| @FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_ADD_EDGES) |
| public void shouldNotTraverseV_In_addEXOUTX() { |
| assertTraversal(create().V().as("a").in().addE("test").to("a"), true); |
| } |
| |
| private GraphTraversalSource create() { |
| return graphProvider.traversal(graph, ReadOnlyStrategy.instance()); |
| } |
| |
| private void assertTraversal(final Traversal t, final boolean expectMutatingStep) { |
| try { |
| // not sure why i need a special hook here for RemoteGraph. It only triggers these exceptions on a |
| // call to hasNext() and not on applyStrategies() |
| if (graph instanceof RemoteGraph) |
| t.hasNext(); |
| else |
| t.asAdmin().applyStrategies(); |
| |
| if (expectMutatingStep) fail("The strategy should have found a mutating step."); |
| } catch (final Exception ise) { |
| if (!expectMutatingStep) |
| fail("The traversal should not have failed as there is no mutating step."); |
| else { |
| // TraversalVerificationStrategy fails before this as mutating operations are not allowed in OLAP |
| if (!(ise instanceof VerificationException)) |
| assertThat(ise.getMessage(), containsString("The provided traversal has a mutating step and thus is not read only")); |
| } |
| } |
| } |
| } |