testng参数化方法:Parameters和DataProvider

  Parameters注解在测试方法上指定参数列表,然后在测试方法中声明对应的形参,形参与参数列表一一对应,但名字可以不同,如下所示:

1 public class Test1 {
2     
3     @Parameters({"Name", "Age", "Hobby"})
4     @Test
5     public void test1(String name, int age, String hobby) {
6         System.out.println(name + " is " + age + " years old and likes " + hobby);
7     }
8 }

  然后在XML文件中通过<parameter>标签对每个参数赋值,采用name-value对的形式:

 1 <suite name="suite1">
 2     <parameter name="Name" value="xiaoming" />
 3     <parameter name="Age" value="20" />
 4     <parameter name="Hobby" value="dajiangyou" />
 5 
 6     <test name="test1" verbose="2">
 7         <classes>
 8             <class name="sea.Test1" />
 9           </classes>    
10     </test>
11     
12 </suite>

  运行结果为:

xiaoming is 20 years old and likes dajiangyou
PASSED: test1("xiaoming", 20, "dajiangyou")

  Parameters一般用于比较简单的参数,对于参数比较多、复杂或者需要从文件读取的时候一般使用DataProvider注解。

  采用DataProvider时构造参数的方法必须返回Obiect[][],可以看着二维数组(当然也可存放一维数据)。

  使用时,首先定义一个DataProvider,通过name参数指定该测试数据的名字;

  然后在测试方法中,通过Test注解的dataProvider参数指定需要使用的测试数据名字,多个测试方法可以使用同一个dataProvider;

  最后在测试方法的形参列表中,定义与Obiect[][]的每一行数据一一对应的参数,该测试方法被执行时,有多少组参数就会被执行多少次。

  举例如下,可以看到test2这个用例被执行了3次:

 1 public class Test1 {
 2     @DataProvider(name = "data1")
 3     public Object[][] createdata() {
 4         return new Object[][] {
 5             {"lilei", 20, "football"},
 6             {"hanmeimei", 18, "music"},
 7             {"wangnima", 25, "baozoumanhua"}
 8         };
 9     }
10 
11     @Test(dataProvider = "data1")
12     public void test2(String name, int age, String hobby) {
13         System.out.println(name + " is " + age + " years old and likes " + hobby);
14     }
15 }
lilei is 20 years old and likes football
hanmeimei is 18 years old and likes music
wangnima is 25 years old and likes baozoumanhua
PASSED: test2("lilei", 20, "football")
PASSED: test2("hanmeimei", 18, "music")
PASSED: test2("wangnima", 25, "baozoumanhua")

 

posted @ 2016-05-01 16:42  oceany  阅读(4993)  评论(0编辑  收藏  举报