package lab1;

public class calculate {
    private static int result = 0;
    public void triangle(int a,int b,int c)
    {
        if(a<=0 || b<=0 || c<=0)
        {
            result = 0;//边长必须大于0
        }
        else
        {
            if(((a+b)>c) && ((a+c)>b && (b+c)>a))
            {
                if((a == b) &&(a == c))
                {
                  result = 3;//等边
                }
                if((a==b && a!=c)||(a==c && a!=b)||(b==c && a!=b))
                {
                    result = 2;//等腰
                    
                }
                if(a!=b && a!=c && b!=c)
                {
                    result = 1;//普通
                }
            }
            
            else
            {
                result = 0;//不满足两边之和大于第三边的不是三角形
            }
        }
        
    }
    
    
    public int getReuslt(){
        return result;
    }
    
        public void clear(){
        result = 0;
    }

}

package lab1;
import static org.junit.Assert.*;
import org.junit.Test;
public class testcal {
    
    private static calculate cal = new calculate();
    @Test
    public void testTriangle(){
        
    cal.triangle(5, 5, 5);
    assertEquals(3, cal.getReuslt());
    cal.triangle(5, 5, 6);
    assertEquals(2, cal.getReuslt());
    cal.triangle(3, 4, 5);
    assertEquals(1, cal.getReuslt());
    cal.triangle(12, 5, 5);
    assertEquals(0, cal.getReuslt());
    }
    

}