我们如何将参数和数据提供者传递给Testng中的相同方法

Question

您好，我正在尝试用 Java 驱动数据。我阅读了 excel 并将值传递给变量“test2”和“test 3”给我的测试。此外，我还需要一个从 testing.xml 发送的参数“test1”。现在在执行下面的测试时会抛出一个错误

org.testng.TestNGException: 数据提供者正在尝试传递 2 个参数，但 com.xxxxx.xxx 方法需要 3 个并且 TestNG 无法注入合适的对象

那么如何将参数和数据提供者传递给同一个方法。谢谢

/* testdataprovider will return the test2 and test3 parameter value */
@Parameters("test1")
@Test(dataProvider = "testdataprovider")
public void testMethod(String test1, String test2, String test3){}

Answer 1

我可能大错特错（如果我错了，我相信其他人会给你一个更好的解决方案）；但我认为您无法使用 testNG Guruswamy 实现您所追求的目标。 我刚刚使用此 dataProvider 测试了您的尝试

@DataProvider(name = "login8users")
    public Object[][] login8usersForStackOverflow() {
      return new Object[][] {
       { "user1@gmail.com", "pass" },
       { "user2@gmail.com",  "pass"},
       { "user3@gmail.com",  "pass"},
       { "user4@gmail.com",  "pass"},
       { "user5@gmail.com",  "pass"},
       { "user6@gmail.com",  "pass"},
       { "user7@gmail.com",  "pass"},
       { "user8@gmail.com",  "pass"},      
      };
    }

并且从 XML 文件中传递一个名为 browser 的参数。我注意到，当您在同一 @Test 注释下使用 dataProvider 和参数 ;您是否会收到上面向我们展示的错误，或者 XML 参数将被完全忽略（似乎 dataProvider 取代了它们）。 那么这里是测试方法：

 @Test(dataProvider="login8users") 
 @Parameters({"browser"})
 public void login8(String dataProvider1, String dataProvider2) {         

            System.out.println("Email from data provider is..: "+dataProvider1);
            System.out.println("Pass from data provider is..: "+dataProvider2);     

        } 

这是输出：

[TestNG] Running:
  C:\projects\test\currentTest.xml    

Email from data provider is..: user1@gmail.com
Pass from data provider is..: pass
Email from data provider is..: user2@gmail.com
Pass from data provider is..: pass
Email from data provider is..: user3@gmail.com
Pass from data provider is..: pass
Email from data provider is..: user4@gmail.com
Pass from data provider is..: pass
Email from data provider is..: user5@gmail.com
Pass from data provider is..: pass
Email from data provider is..: user6@gmail.com
Pass from data provider is..: pass
Email from data provider is..: user7@gmail.com
Pass from data provider is..: pass
Email from data provider is..: user8@gmail.com
Pass from data provider is..: pass

===============================================
Regression
Total tests run: 8, Failures: 0, Skips: 0
===============================================

因此您需要寻找替代解决方案。其中之一可能是提前加载参数，（甚至可能在@BeforeClass 中）在测试中将参数作为全局变量传递，以便您可以访问它。所以像这样的解决方案：

public static String globalVarScope;


       @BeforeClass
       @Parameters({"xmlParam"}) 
       public void initialSetup(String xmlParam) {

            System.out.println("Parameter from XML is..: "+xmlParam);
            globalVarScope= xmlParam;   
        }   


        @Test         
        public void useMeAnywhere() {         

            System.out.println("Hey, I passed the param earlier and I can use it anywhere now :) ..: "+globalVarScope);    
        }    


        @Test(dataProvider="login8users") 
        @Parameters({"browser"})
        public void login8(String dataProvider1, String dataProvider2) {      

            System.out.println("Email from data provider is..: "+dataProvider1);
            System.out.println("Pass from data provider is..: "+dataProvider2);     
        }  

所以希望现在你可以达到你想要的结果，如果你遇到困难，请告诉我。下面是单独运行参数后的最终输出：

 [TestNG] Running:
      C:\projects\test\currentTest.xml

    Browser is..: ***chrome***
    Email from data provider is..: user1@gmail.com
    Pass from data provider is..: pass
    Email from data provider is..: user2@gmail.com
    Pass from data provider is..: pass
    Email from data provider is..: user3@gmail.com
    Pass from data provider is..: pass
    Email from data provider is..: user4@gmail.com
    Pass from data provider is..: pass
    Email from data provider is..: user5@gmail.com
    Pass from data provider is..: pass
    Email from data provider is..: user6@gmail.com
    Pass from data provider is..: pass
    Email from data provider is..: user7@gmail.com
    Pass from data provider is..: pass
    Email from data provider is..: user8@gmail.com
    Pass from data provider is..: pass

    ===============================================
    Regression
    Total tests run: 9, Failures: 0, Skips: 0
    ===============================================  

祝你好运！