JUnit和Eclemma使用的例子

JUnit和Eclemma使用的例子

测试的题目

Write a javaprogram for the triangle problem and test the program with Junit.

Description oftriangle problem:

Functiontriangle takes three integers a,b,cwhich are length of triangle sides; calculates whether the triangle isequilateral, isosceles, or scalene.

程序源代码

public class Triangle {
	
	/**
	 * 给定三条边a、b、c
	 * 判断是否可以构成一个三角形
	 * 若可以构成一个三角形，输出三角形的类型 
	 **/
	public int f_triangle(int i_a, int i_b, int i_c){
		if(i_a+i_b>i_c&&i_b+i_c>i_a&&i_c+i_a>i_b){
			if(i_a==i_b&&i_b==i_c){
				System.out.println("这是一个等边三角形！");
				return 1;
			}else if(i_a==i_b||i_b==i_c||i_c==i_a){
				System.out.println("这是一个等腰三角形！");
				return 2;
			}else{
				System.out.println("这是一个三角形！");
				return 3;
			}
		}else{
			System.out.println("这不是一个三角形！");
			return 0;
		}
	}
}

JUnit编写的测试用例的代码

public class TriangleTest {
	
	Triangle c_t=new Triangle();;
	
	@Test
	public void testF_triangle_one() {
		assertEquals(0, c_t.f_triangle(1, 2, 3));
	}
	
	@Test
	public void testF_triangle_one_01() {
		assertEquals(0, c_t.f_triangle(1, 3, 2));
	}
	
	@Test
	public void testF_triangle_one_02() {
		assertEquals(0, c_t.f_triangle(2, 1, 3));
	}
	
	@Test
	public void testF_triangle_one_03() {
		assertEquals(0, c_t.f_triangle(2, 3, 1));
	}
	
	@Test
	public void testF_triangle_one_04() {
		assertEquals(0, c_t.f_triangle(3, 1, 2));
	}
	
	@Test
	public void testF_triangle_one_05() {
		assertEquals(0, c_t.f_triangle(3, 2, 1));
	}
	
	@Test
	public void testF_triangle_two() {
		assertEquals(1, c_t.f_triangle(3, 3, 3));
	}
	
	@Test
	public void testF_triangle_three() {
		assertEquals(2, c_t.f_triangle(2, 3, 3));
	}
	
	@Test
	public void testF_triangle_three_01() {
		assertEquals(2, c_t.f_triangle(2, 2, 3));
	}
	
	@Test
	public void testF_triangle_three_02() {
		assertEquals(2, c_t.f_triangle(3, 2, 3));
	}
	
	@Test
	public void testF_triangle_four() {
		assertEquals(3, c_t.f_triangle(3, 4, 5));
	}
	
	@Test
	public void testF_triangle_four_01() {
		assertEquals(3, c_t.f_triangle(3, 5, 4));
	}
	
	@Test
	public void testF_triangle_four_02() {
		assertEquals(3, c_t.f_triangle(4, 3, 5));
	}
	
	@Test
	public void testF_triangle_four_03() {
		assertEquals(3, c_t.f_triangle(4, 5, 3));
	}
}

JUnit测试的结果

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