JUnit 傻瓜教程

添加一個java工程

點擊右鍵選擇Properties

创建一个source folder 目的就是把测试类和被测试的类分开

添加一个类  加法 乘法

public class MathOperation {

public int add(int a,int b){

int result=a+b;

return result;
}

public int multiply(int a,int b){
int result = a * b;
return result;
}

}

添加一个测试类

生成的测试类中添加断言

public class MathOperationTest {

MathOperation mo=new MathOperation();
@Test
public void testAdd() {
//fail("Not yet implemented");
int expected =3;
int value= mo.add(1, 2);

assertEquals(expected, value);

}

@Test
public void testMultiply() {
//fail("Not yet implemented");

int expected =4;
int value= mo.multiply(2, 2);

assertEquals(expected, value);
}

}

run as  JUnit test