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Better error message when "org.testng.internal.reflect.MethodMatcherException: Data provider mismatch "

See original GitHub issue

This is what I am sending through my data provider

@DataProvider(name="test")
    public static Object[][] test() throws Exception{
        return new Object[][]
                {
            {"","hemanth","sridhar","test123","test123","address1","address2","Topeka","Kansas","66601","1234567890","Super User","","Please enter Email Address."}
            };
    }

This is my signature

@Test(groups={"regression"},dataProvider="excelSheetDataRead",dataProviderClass=SearchData.class)
public void TC_PA_008_TC_PA_009_TC_PA_010_TC_PA_011_TC_PA_012_TC_PA_013_TC_PA_014_TC_PA_015_TC_PA_016_TC_A_017_TC_PA_018_TC_PA_019_TC_PA_020_TC_PA_021_TC_PA_022_errorScenarios(String emailId,String firstName, String lastName, String password, String confirmPassword,String address1, String address2, String city, String state, String zipCode,String phoneNumber,String roleAssignment,String faxNumber,String website,String expectedErrorMsg) throws Exception

Complete console log:

org.testng.internal.reflect.MethodMatcherException: 
Data provider mismatch
Method: TC_PA_008_TC_PA_009_TC_PA_010__TC_PA_011_TC_PA_012_TC_PA_013_TC_PA_014_TC_PA_015_TC_PA_016_TC_A_017_TC_PA_018_TC_PA_019_TC_PA_020_TC_PA_021_TC_PA_022_errorScenarios([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=[]}, Parameter{index=4, type=java.lang.String, declaredAnnotations=[]}, Parameter{index=5, type=java.lang.String, declaredAnnotations=[]}, Parameter{index=6, type=java.lang.String, declaredAnnotations=[]}, Parameter{index=7, type=java.lang.String, declaredAnnotations=[]}, Parameter{index=8, type=java.lang.String, declaredAnnotations=[]}, Parameter{index=9, type=java.lang.String, declaredAnnotations=[]}, Parameter{index=10, type=java.lang.String, declaredAnnotations=[]}, Parameter{index=11, type=java.lang.String, declaredAnnotations=[]}, Parameter{index=12, type=java.lang.String, declaredAnnotations=[]}, Parameter{index=13, type=java.lang.String, declaredAnnotations=[]}, Parameter{index=14, type=java.lang.String, declaredAnnotations=[]}])
Arguments: [(java.lang.String),(java.lang.String)hemanth,(java.lang.String)sridhar,(java.lang.String)test123,(java.lang.String)test123,(java.lang.String)address1,(java.lang.String)address2,(java.lang.String)Topeka,(java.lang.String)Kansas,(java.lang.String)66601,(java.lang.String)1234567890,(java.lang.String)Super User,(java.lang.String),(java.lang.String)Please enter Email Address.]
    at org.testng.internal.reflect.DataProviderMethodMatcher.getConformingArguments(DataProviderMethodMatcher.java:52)
    at org.testng.internal.Invoker.injectParameters(Invoker.java:1228)
    at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1125)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:129)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:112)
    at org.testng.TestRunner.privateRun(TestRunner.java:778)
    at org.testng.TestRunner.run(TestRunner.java:632)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:366)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:361)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:319)
    at org.testng.SuiteRunner.run(SuiteRunner.java:268)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1225)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1150)
    at org.testng.TestNG.runSuites(TestNG.java:1075)
    at org.testng.TestNG.run(TestNG.java:1047)
    at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:126)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:137)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:58)

Issue Analytics

State:
Created 7 years ago
Comments:13

Top GitHub Comments

1reaction

juherrcommented, Apr 26, 2016

I think we could be better and be a bit more precise: too much/few parameters. But clearly not a priority 😉

0reactions

krmahadevancommented, Jun 15, 2022

Following is what I see in TestNG 7.6.0 (latest released version as of today)

import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

public class TestClass {

  @Test(dataProvider = "dp")
  public void testMethod(int a, int b) {
  }

  @DataProvider(name = "dp")
  public Object[][] getData() {
    return new Object[][]{
        {1}
    };
  }
}

Error message:

org.testng.internal.reflect.MethodMatcherException: 
[public void com.rationaleemotions.issue1031.TestClass.testMethod(int,int)] has no parameters defined but was found to be using a data provider (either explicitly specified or inherited from class level annotation).
Data provider mismatch
Method: testMethod([int arg0, int arg1])
Arguments: [(java.lang.Integer) 1]