How to resolve org.testng.internal.reflect.MethodMatcherException in TestNG?

Question

ContactsPage Class:-

public class ContactsPage extends TestBase {


public ContactsPage()
{
    PageFactory.initElements(driver, this);
}

public boolean contactsLabel()
{
    return contactsLabel.isDisplayed();
}

public void createNewContact1(String subject, String fName, String lName, String petname ) throws InterruptedException, AWTException
{
    .....
}

public void createNewContact2(String comp, String comPos, String dept, String conLookSup ) throws InterruptedException
{
    .....
}

public void createNewContact3(String conLookAss, String conLookRef ) throws InterruptedException
{
    .....
}
}

ContactsPageTest Class:-

public class ContactsPageTest extends TestBase {

TestUtil testUtil;
LoginPage loginpage;
HomePage homepage;
ContactsPage contactsPage;
String sheetName = "Contacts";

public ContactsPageTest() {
    super();
}

@BeforeMethod()
public void setUp() throws InterruptedException {
    initialzation();
    testUtil = new TestUtil();
    loginpage = new LoginPage();
    homepage = loginpage.login(prop.getProperty("username"), prop.getProperty("password"));
    contactsPage = new ContactsPage();

}

/*
 * @Test(priority = 1) public void contactsLabelTest() throws
 * InterruptedException { testUtil.switchToFrame(); contactsPage =
 * homepage.contactsLink(); Thread.sleep(3000);
 * Assert.assertTrue(contactsPage.contactsLabel(), "Exception has caught!"); }
 */

@DataProvider
public Object[][] getCRMTestData() {
    Object data[][] = TestUtil.getTestData("Contacts");
    return data;
}

@Test(priority = 2, dataProvider = "getCRMTestData")
public void createNewContactTest1(String subject, String fName, String lName, String petname)
        throws InterruptedException, AWTException {
    testUtil.switchToFrame();
    homepage.moveToNewContact();
    contactsPage.createNewContact1(subject, fName, lName, petname);

}

@Test(priority = 3, dataProvider = "getCRMTestData")
public void createNewContactTest2(String comp, String comPos, String dept, String conLookSup)
        throws InterruptedException, AWTException 
        {
contactsPage.createNewContact2(comp, comPos, dept, conLookSup);
        }

@Test(priority = 4, dataProvider = "getCRMTestData")
public void createNewContactTest3(String conLookAss, String conLookRef)
        throws InterruptedException, AWTException 
{
 contactsPage.createNewContact3(conLookAss, conLookRef);
}

@AfterMethod
public void close() {
    driver.close();
}

}

Error Message:

FAILED: createNewContactTest1
org.testng.internal.reflect.MethodMatcherException: 
Data provider mismatch
Method: createNewContactTest1([Parameter{index=0, type=java.lang.String, declaredAnnotations=[]}, Parameter{index=1, type=java.lang.String, declaredAnnotations=[]}, Parameter{index=2, type=java.lang.String, declaredAnnotations=[]}, Parameter{index=3, type=java.lang.String, declaredAnnotations=[]}])
Arguments: [(java.lang.String) Mr,(java.lang.String) Manideep,(java.lang.String) Latchupatula,(java.lang.String) Deep,(java.lang.String) Accenture,(java.lang.String) ASE,(java.lang.String) CSE,(java.lang.String) TL,(java.lang.String) NA,(java.lang.String) NA]
    at org.testng.internal.reflect.DataProviderMethodMatcher.getConformingArguments(DataProviderMethodMatcher.java:45)
    at org.testng.internal.Parameters.injectParameters(Parameters.java:796)
    at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:982)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
    at org.testng.TestRunner.privateRun(TestRunner.java:648)
    at org.testng.TestRunner.run(TestRunner.java:505)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)
    at org.testng.SuiteRunner.run(SuiteRunner.java:364)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)
    at org.testng.TestNG.runSuites(TestNG.java:1049)
    at org.testng.TestNG.run(TestNG.java:1017)
    at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:114)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)

Description: I am working to develop Hybrid Framework by using Selenium. I started off on a positive note but I've been stuck at:

org.testng.internal.reflect.MethodMatcherException.

I have tried for some time but I am clueless. So here, I am.

Could you please let me know where the issue is?

Answer 1

It is throwing MethodMatcherException because you are passing same Data provider to different @Test Method, And Each test method has different Parameter value. Parameters return by @DataProvider and @Test Method should must match in order to retrieve and assign data.

You need to make sure what Data provider is returning, And you can assign it according those Parameters to Test method.

Here your Data Provider is returning Parameters as Following: Its 10 Parameter [Mr,Manideep,Latchupatula,Deep, Accenture, ASE, CSE,TL, NA, NA]

And You are binding it with 4 Parameters of @Test createNewContactTest1 method:

createNewContactTest1(String subject, String fName, String lName, String petname)

You need to Manage

• Your Data provider retrieval code as according to your required Parameters OR

• You can create different sheet with required parameters OR

• You can add all 10 Parameters to @Test method as according to DP returns