java - Java 软件测试

Question

我正在使用以前的考试问题为本周即将到来的考试进行修改，但我无法获得 100% 的覆盖率，我的程序是：

public int computeInsurance(boolean SportsEquipment, boolean MusicEquipment)
{
int insurance;
if(SportsEquipment == true && MusicEquipment==true)
insurance = 20;
else if((SportsEquipment == true && MusicEquipment == false)||(SportsEquipment == false        && MusicEquipment == true))
        insurance = 10;
    else
        insurance= 5;

    return insurance;
}

}

我正在使用以下测试用例：

public class Lab5CarTest {

@Test
public void testComputeInsurance() {
    Lab5Car t = new Lab5Car();

    int result = t.computeInsurance(true, true);
    assertEquals(20,result);

    int i = t.computeInsurance(true,false);
    assertEquals(10,i);

    int u = t.computeInsurance(false,false);
    assertEquals(5,u);


}

}

但是我在代码的 else if 行中缺少 8 个分支中的 3 个！

Answer 1

你为什么不测试：

int ip = t.computeInsurance(false,true);
assertEquals(10,ip);

像这样，您应该涵盖所有内容。

你可以像这样简化你的代码：

if (SportsEquipment && MusicEquipment)
    insurance = 20;
else if (SportsEquipment != MusicEquipment)
    insurance = 10;
else
    insurance= 5;

Answer 2

4 个中有 1 个（=2²）您丢失了（不是 2³），t.computeInsurance(false, true);

S M  I
------
t t 20
t f 10
f t 10
f f  5


if (SportsEquipment  && MusicEquipment)
    insurance = 20;
else if (SportsEquipment != MusicEquipment)
    insurance = 10;
else
    insurance= 5;