/**
* Licensed to The Apereo Foundation under one or more contributor license
* agreements. See the NOTICE file distributed with this work for additional
* information regarding copyright ownership.
*
*
* The Apereo Foundation licenses this file to you under the Educational
* Community 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://opensource.org/licenses/ecl2.txt
*
* 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.opencastproject.util.data.functions;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.opencastproject.util.EqualsUtil.eqListSorted;
import static org.opencastproject.util.data.Collections.list;
import static org.opencastproject.util.data.Option.none;
import static org.opencastproject.util.data.Option.some;
import static org.opencastproject.util.data.functions.Options.sequenceOpt;
import org.opencastproject.util.data.Effect;
import org.opencastproject.util.data.Function;
import org.opencastproject.util.data.Option;
import org.junit.Test;
public class OptionsTest {
@Test
public void testSequenceOpt() {
assertTrue(eqListSorted(list(1, 2, 3), sequenceOpt(list(some(1), none(-1), some(2), some(3), none(-1))).get()));
assertTrue(eqListSorted(list(), sequenceOpt(list(none(-1), none(-1))).get()));
}
@Test
public void testForeach() {
final Integer[] r = new Integer[1];
final Function<String, Option<Integer>> f = Options.foreach(new Function<String, Option<Integer>>() {
@Override
public Option<Integer> apply(String s) {
return s.length() > 0 ? some(s.length()) : none(Integer.class);
}
}, new Effect<Integer>() {
@Override
protected void run(Integer integer) {
r[0] = integer;
}
});
assertEquals(none(Integer.class), f.apply(""));
assertNull(r[0]);
assertEquals(some(3), f.apply("bla"));
assertEquals(new Integer(3), r[0]);
}
}