/*
* Copyright 2010 Henry Coles
*
* Licensed 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.pitest.mutationtest.engine.gregor.mutators;
import static org.junit.Assert.assertEquals;
import java.util.Collection;
import java.util.concurrent.Callable;
import org.junit.Before;
import org.junit.Test;
import org.pitest.mutationtest.engine.Mutant;
import org.pitest.mutationtest.engine.MutationDetails;
import org.pitest.mutationtest.engine.gregor.MutatorTestBase;
public class IncrementsMutatorTest extends MutatorTestBase {
@Before
public void setupEngineToMutateOnlyIncrements() {
createTesteeWith(IncrementsMutator.INCREMENTS_MUTATOR);
}
private static class HasIncrement implements Callable<String> {
public int containsIincInstructions(int i) {
return ++i;
}
@Override
public String call() throws Exception {
return "" + containsIincInstructions(1);
}
}
@Test
public void shouldNegateArgumentsToIInc() throws Exception {
final Collection<MutationDetails> actual = findMutationsFor(HasIncrement.class);
assertEquals(1, actual.size());
final Mutant mutant = getFirstMutant(actual);
assertMutantCallableReturns(new HasIncrement(), mutant, "0");
}
@Test
public void shouldRecordCorrectLineNumberForMutations() {
final Collection<MutationDetails> actual = findMutationsFor(HasIncrement.class);
assertEquals(1, actual.size());
final MutationDetails first = actual.iterator().next();
assertEquals(37, first.getLineNumber());
}
}