Question

您好我正在尝试用Java驱动数据。我读取excel并将值传递给变量“test2”和“test 3”进行测试。另外，我还需要一个参数“test1”，我从testing.xml发送它。现在执行下面的测试会抛出一个错误

org.testng.TestNGException：数据提供程序正在尝试传递2个参数，但方法com.xxxxx.xxx需要3，而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。感谢

/* 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

我可能非常错误（如果我是，我相信别人会给你一个更好的解决方案）;但我不认为你可以使用testNG Guruswamy来实现你的目标。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文件传递一个名为browser 的参数。我注意到当你在同一个@Test注释下使用dataProvider和Parameters 时;您是否会收到上面显示的错误或XML参数将被完全忽略（似乎dataProvider取代它们）。然后是测试方法：

@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，您需要搜索替代解决方案。其中一个可能是加载参数，（甚至可能在@BeforeClass中）将参数作为全局变量传递给您，以便您可以访问它。所以这样的解决方案：

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); }

所以希望你现在可以达到预期的效果，如果你遇到困难，请告诉我。以下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！

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