单元测试JUnit案例

被测试模块

package packagedemo;

public class Largest {

	public  int minimal(int [] array1)
	{
		int index = 0 ;
		int max = Integer.MAX_VALUE;
		
		for(index = 0; index <array1.length-1;index++)
		{
			if(array1[index] < max)
			{
				max = array1[index];//求的是数组中的最小值
			}
		}//for
		return max;
	}
}

　　

测试类

package packagedemo;

import static org.junit.Assert.*;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class TTest extends Largest {

	@Before
	public void setUp() throws Exception {
	}

	@After
	public void tearDown() throws Exception {
	}

	@Test
	public void testMinimal() {
		int demos[]= new int[10];
		
		for (int i =0 ;i<demos.length;i++)
		{
			demos[i] = (int)(Math.random()*100+1);
			System.out.println(demos[i]);
		}
		
		int max = Integer.MAX_VALUE;
		
		for (int i=0;i<demos.length-1;i++)
		{
			if(demos[i]<max)
				max = demos[i];
		}
		
		int res = new Largest().minimal(demos);
		assertEquals(res,max);
	}

}