/*
* Copyright 2013 Julien Viet
*
* 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 viet.promises;
import org.junit.Before;
import org.junit.Test;
import vietj.promises.Deferred;
import vietj.promises.Promise;
import java.util.Arrays;
import java.util.LinkedList;
import static org.junit.Assert.*;
/** @author Julien Viet */
public class PromisesTestCase {
LinkedList<String> done;
LinkedList<Exception> failed;
Deferred<Integer> deferred;
Promise<Integer> promise;
@Before
public void setup() {
done = new LinkedList<String>();
failed = new LinkedList<Exception>();
deferred = new Deferred<Integer>();
promise = deferred.promise;
promise.then(Callbacks.<Integer>toStringHandler(), Callbacks.<Exception>toStringHandler()).then(Callbacks.addToHandler(done), Callbacks.addToHandler(failed));
}
@Test
public void testFulfilledFulfillmentHandlerReturnsValue() {
deferred.resolve(3);
assertEquals(Arrays.asList("3"), done);
assertEquals(Arrays.<Exception>asList(), failed);
}
@Test
public void testRejectedRejectionHandlerReturnsAValue() {
Exception e = new Exception() {
@Override
public String toString() {
return "4";
}
};
deferred.reject(e);
assertEquals(Arrays.asList("4"), done);
assertEquals(Arrays.<Exception>asList(), failed);
}
}