/**
* 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.waveprotocol.wave.model.operation.testing;
import junit.framework.TestCase;
import org.waveprotocol.wave.model.document.bootstrap.BootstrapDocument;
import org.waveprotocol.wave.model.document.operation.DocOp;
import org.waveprotocol.wave.model.document.operation.algorithm.Transformer;
import org.waveprotocol.wave.model.operation.OpComparators;
import org.waveprotocol.wave.model.operation.OperationException;
import org.waveprotocol.wave.model.operation.OperationPair;
import org.waveprotocol.wave.model.operation.TransformException;
import org.waveprotocol.wave.model.operation.testing.reference.ReferenceTransformer;
import java.util.Random;
/**
* Tests for verifying that the behavior of the optimized document operation
* transformer matches the behavior of the reference transformer.
*
* @author Alexandre Mah
*/
public class DocOpTransformerReferenceLargeTest extends TestCase {
// NOTE: Ideally, the optimised transform implementation in class Transformer
// should match the reference implementation. It currently doesn't,
// which becomes apparent if you run much more than 100 iterations.
// See the comment in the Transformer class.
private final int NUM_ITERATIONS = 100; // NOTE: increase if you test changes to doc op transform
private final int INITIAL_MUTATION_COUNT = 3;
private final int FEATURE_ITERATION_COUNT = 20;
public void testEquivalence() throws OperationException, TransformException {
Random r = new Random(0);
DocOpGenerator generator = new DocOpGenerator();
for (int iteration = 0; iteration < NUM_ITERATIONS; ++iteration) {
System.out.println("Iteration: " + iteration);
BootstrapDocument document= new BootstrapDocument();
for (int i = 0; i < INITIAL_MUTATION_COUNT; ++i) {
document.consume(generator.randomOperation(document, r));
}
for (int i = 0; i < FEATURE_ITERATION_COUNT; ++i) {
DocOp clientOp = generator.randomOperation(document, r);
DocOp serverOp = generator.randomOperation(document, r);
OperationPair<DocOp> pair = Transformer.transform(clientOp, serverOp);
OperationPair<DocOp> referencePair =
ReferenceTransformer.transform(clientOp, serverOp);
assertTrue(OpComparators.SYNTACTIC_IDENTITY.equal(
pair.clientOp(), referencePair.clientOp()));
assertTrue(OpComparators.SYNTACTIC_IDENTITY.equal(
pair.serverOp(), referencePair.serverOp()));
document.consume(clientOp);
document.consume(pair.serverOp());
}
}
}
}