选择一个合适的java代码,利用MC/DC进行覆盖率测试
时间: 2023-04-09 12:00:38 浏览: 243
我可以回答这个问题。以下是一个示例的Java代码,可以用MC/DC进行覆盖率测试:
```
public class Calculator {
public int add(int a, int b) {
return a + b;
}
public int subtract(int a, int b) {
return a - b;
}
public int multiply(int a, int b) {
return a * b;
}
public int divide(int a, int b) {
if (b == 0) {
throw new IllegalArgumentException("Cannot divide by zero");
}
return a / b;
}
}
```
使用MC/DC进行覆盖率测试,需要编写测试用例,以确保每个条件和分支至少被测试一次。例如,以下是一些测试用例:
```
@Test
public void testAdd() {
Calculator calculator = new Calculator();
int result = calculator.add(2, 3);
assertEquals(5, result);
}
@Test
public void testSubtract() {
Calculator calculator = new Calculator();
int result = calculator.subtract(5, 3);
assertEquals(2, result);
}
@Test
public void testMultiply() {
Calculator calculator = new Calculator();
int result = calculator.multiply(2, 3);
assertEquals(6, result);
}
@Test
public void testDivide() {
Calculator calculator = new Calculator();
int result = calculator.divide(6, 3);
assertEquals(2, result);
}
@Test(expected = IllegalArgumentException.class)
public void testDivideByZero() {
Calculator calculator = new Calculator();
calculator.divide(6, 0);
}
```
这些测试用例可以确保每个条件和分支至少被测试一次,从而实现MC/DC覆盖率测试。
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