junit + jacoco 白盒测试训练
HTML报告结果截图如下
本次实验中主要实现了isTriangle、isBirthday、miniCalculator函数功能，其中为了实现Method4函数中分支测试的全覆盖，适当修改了代码加入了try catch语句。 具体添加和修改的代码如下：
public int Method4(int a, int b, int c, int d, float e) {
if(a == 0) {
return 0;
}
int x = 0;
if((a == b) || ((c == d) && (bug(a)))) {
x = 1;
}
try {
e = 1/x;
}catch (Exception ee){
ee.printStackTrace();
}
return 0;
}
public boolean isTriangle(int a, int b, int c) {
/**
* TODO: You need to complete this method to determine whether a
* triangle is formed or not when given the input edge a, b and c.
*/
if (a+b>c && a+c>b && b+c>a)
return true;
else
return false;
}
public boolean isBirthday(int year, int month, int day) {
/**
* TODO: You need to complete this method to determine whether a
* legitimate date of birth between 1990/01/01 and 2019/10/01 is
* formed or not when given the input year, month and day.
*/
//闰年月份天数
int[] mon_of_leapyear = {0,31,29,31,30,31,30,31,31,30,31,30,31};
//正常年月份天数
int[] mon_of_normalyear = {0,31,28,31,30,31,30,31,31,30,31,30,31};
//判断输入年份是否合法
if (year<=2019 && year >= 1990){
//判断是否为闰年
if (year%4 == 0 && year%100!=0 || year%400 ==0){//是闰年
//判断输入月份是否合法
if (month>=1 && month <=12){
//判断天数是否合法
if (day>=1 && day<=mon_of_leapyear[month]){
return true;
}
else
return false;
}
else
return false;
}
else{
//不是闰年
//判断输入月份是否合法
if (year==2019){
if (month>=1 && month<=10){
//判断天数是否合法
if (day>=1 && day<=mon_of_normalyear[month]){
return true;
}
else
return false;
}
else
return false;
}
else
{
if (month>=1 && month<=12){
//判断天数是否合法
if (day>=1 && day<=mon_of_normalyear[month]){
return true;
}
else
return false;
}
else
return false;
}
}
}
else
return false;
}
public Double miniCalculator(double a, double b, char op) {
/**
* TODO: You need to complete this method to form a small calculator which
* can calculate the formula: "a op b", the op here can be four basic
* operation: "+","-","*","/".
*/
double result = 0.0;
switch (op){
case '+':
result = a + b;
break;
case '-':
result = a - b;
break;
case '*':
result = a * b;
break;
case '/':
result = a / b;
break;
default:
System.out.println("Unknown operation...");
break;
}
return result;
}同时本次实验还需要自己给出测试用例，具体如下：
@Test
public void testMethod3() {
/**
* TODO：finish the test function
*/
HelloWorld hw = new HelloWorld();
int a = hw.Method3(6, -1, 1);
int if_1 = hw.Method3(6,1,1);
int if_2 = hw.Method3(4,-1,-3);
int if_3 = hw.Method3(4,-1,-1);
int if_4 = hw.Method3(6,-1,-3);
int if_5 = hw.Method3(6,1,-1);
}
/**
* TODO: add the test function of other methods in HelloWorld.java
*/
@Test
public void testMethod4() {
HelloWorld hw = new HelloWorld();
int hw_1 = hw.Method4(0,1,1,1,1);
int hw_2 = hw.Method4(5,5,2,2,1);
int hw_6 = hw.Method4(4,4,2,2,1);
int hw_5 = hw.Method4(5,5,2,3,1);
int hw_4 = hw.Method4(4,4,2,3,1);
int hw_3 = hw.Method4(5,2,3,3,1);
int hw_7 = hw.Method4(4,2,3,3,1);
int hw_8 = hw.Method4(4,2,2,3,1);
}
@Test
public void testbug() {
HelloWorld hw = new HelloWorld();
boolean flag_t = hw.bug(5);
boolean flag_f = hw.bug(4);
}
@Test
public void testisTriangle() {
HelloWorld hw = new HelloWorld();
boolean tri_1 = hw.isTriangle(3,4,5);
boolean tri_2 = hw.isTriangle(1,1,2);
boolean tri_3 = hw.isTriangle(1,1,0);
boolean tri_4 = hw.isTriangle(3,1,1);
}
@Test
public void testisBirthday() {
HelloWorld hw = new HelloWorld();
boolean bri_10 = hw.isBirthday(1000,1,1);
boolean bri_12 = hw.isBirthday(2020,1,1);
boolean bri_6 = hw.isBirthday(2000,1,1);
boolean bri_7 = hw.isBirthday(2000,2,29);
boolean bri_8 = hw.isBirthday(2000,2,30);
boolean bri_9 = hw.isBirthday(2000,13,1);
boolean bri_15 = hw.isBirthday(2004,0,1);
boolean bri_16 = hw.isBirthday(2000,1,0);
boolean bri_17 = hw.isBirthday(2004,1,32);
boolean bri_2 = hw.isBirthday(2019,10,1);
boolean bri_3 = hw.isBirthday(2019,11,1);
boolean bri_4 = hw.isBirthday(2019,0,2);
boolean bri_5 = hw.isBirthday(2019,2,29);
boolean bri_18 = hw.isBirthday(2019,2,0);
boolean bri_1 = hw.isBirthday(1990,1,1);
boolean bri_11 = hw.isBirthday(1990,4,31);
boolean bri_13 = hw.isBirthday(2001,13,1);
boolean bri_14 = hw.isBirthday(2001,0,1);
boolean bri_19 = hw.isBirthday(2001,1,32);
boolean bri_20 = hw.isBirthday(2001,1,0);
}
@Test
public void testminiCaculator() {
HelloWorld hw = new HelloWorld();
double d_1 = hw.miniCalculator(11,22,'+');
double d_2 = hw.miniCalculator(11,22,'-');
double d_3 = hw.miniCalculator(11,22,'*');
double d_4 = hw.miniCalculator(11,22,'/');
double d_5 = hw.miniCalculator(11,22,'!');
}