ConditionTest.java

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 * Mission Control Technologies, Copyright (c) 2009-2012, United States Government
 * as represented by the Administrator of the National Aeronautics and Space 
 * Administration. All rights reserved.
 *
 * The MCT platform is 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 
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 * License for the specific language governing permissions and limitations under 
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package gov.nasa.arc.mct.util.condition;

import gov.nasa.arc.mct.util.condition.Condition;

import org.testng.annotations.Test;

import static org.testng.Assert.*;

public class ConditionTest {

	Condition trueCondition = new Condition() {
		public boolean getValue() {
			return true;
		}
	};

	Condition falseCondition = new Condition() {
		public boolean getValue() {
			return false;
		}
	};

	@Test
	public void testGetValue() throws Exception {
		
		assertTrue(trueCondition.getValue());
	}
	
	@Test
	public void testAlwaysTrue() throws Exception {
		Condition.waitForCondition(Long.MAX_VALUE, trueCondition);
		assertTrue(true, "Condition became true");
	}
	
	@Test
	public void testTimeout() throws Exception {
		Condition.waitForCondition(1000L, falseCondition);
		assertTrue(!falseCondition.getValue());
		assertTrue(true, "Condition timed out");
	}
	
	@Test
	public void testChangingCondition() throws Exception {
		Condition cond = new Condition() {
			private int intValue = 10;
			
			public boolean getValue() {
				return (--intValue <= 0);
			}
		};
		
		Condition.waitForCondition(5000L, cond);
		assertTrue(cond.getValue());
	}
	
}