/**
* The MIT License
* Copyright (c) 2014-2016 Ilkka Seppälä
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.iluwatar.observer;
import static org.junit.Assert.assertEquals;
import com.iluwatar.observer.utils.InMemoryAppender;
import java.util.function.Supplier;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
/**
* Date: 12/27/15 - 11:44 AM
* Weather Observer Tests
* @param <O> Type of WeatherObserver
* @author Jeroen Meulemeester
*/
public abstract class WeatherObserverTest<O extends WeatherObserver> {
private InMemoryAppender appender;
@Before
public void setUp() {
appender = new InMemoryAppender();
}
@After
public void tearDown() {
appender.stop();
}
/**
* The observer instance factory
*/
private final Supplier<O> factory;
/**
* The weather type currently tested
*/
private final WeatherType weather;
/**
* The expected response from the observer
*/
private final String response;
/**
* Create a new test instance using the given parameters
*
* @param weather The weather currently being tested
* @param response The expected response from the observer
* @param factory The factory, used to create an instance of the tested observer
*/
WeatherObserverTest(final WeatherType weather, final String response, final Supplier<O> factory) {
this.weather = weather;
this.response = response;
this.factory = factory;
}
/**
* Verify if the weather has the expected influence on the observer
*/
@Test
public void testObserver() {
final O observer = this.factory.get();
assertEquals(0, appender.getLogSize());
observer.update(this.weather);
assertEquals(response, appender.getLastMessage());
assertEquals(1, appender.getLogSize());
}
}