/*
* 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.isis.applib.services.command;
import java.util.List;
import org.junit.Before;
import org.junit.Test;
import org.apache.isis.applib.services.eventbus.ActionInteractionEvent;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
public abstract class Command2ContractTestAbstract {
Command2 command;
ActionInteractionEvent<?> ev1;
ActionInteractionEvent<?> ev2;
@Before
public void setUp() throws Exception {
final Object source = new Object();
ev1 = new ActionInteractionEvent.Default(source, null);
ev2 = new ActionInteractionEvent.Default(source, null);
command = newCommand();
}
protected abstract Command2 newCommand();
@Test
public void givenEmpty() throws Exception {
// then
assertNull(command.peekActionInteractionEvent());
assertNull(command.popActionInteractionEvent());
}
@Test
public void givenOne() throws Exception {
// given
command.pushActionInteractionEvent(ev1);
// then
assertEquals(ev1, command.peekActionInteractionEvent());
// and when
assertEquals(ev1, command.popActionInteractionEvent());
// then
assertNull(command.peekActionInteractionEvent());
}
@Test
public void givenTwo() throws Exception {
// given
command.pushActionInteractionEvent(ev1);
command.pushActionInteractionEvent(ev2);
// then
assertEquals(ev2, command.peekActionInteractionEvent());
// and when
assertEquals(ev2, command.popActionInteractionEvent());
// then
assertEquals(ev1, command.peekActionInteractionEvent());
// and when
assertEquals(ev1, command.popActionInteractionEvent());
// then
assertNull(command.peekActionInteractionEvent());
}
@Test
public void pushSame() throws Exception {
// given
command.pushActionInteractionEvent(ev1);
command.pushActionInteractionEvent(ev1);
// then
assertEquals(ev1, command.peekActionInteractionEvent());
// and when
assertEquals(ev1, command.popActionInteractionEvent());
// then
assertNull(command.peekActionInteractionEvent());
}
@Test
public void clear() throws Exception {
// given
command.pushActionInteractionEvent(ev1);
command.pushActionInteractionEvent(ev2);
// then
assertEquals(ev2, command.peekActionInteractionEvent());
// and when
final List<ActionInteractionEvent<?>> events = command.flushActionInteractionEvents();
// then
assertEquals(ev1, events.get(0));
assertEquals(ev2, events.get(1));
assertNull(command.peekActionInteractionEvent());
}
}