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TestNG DataProvider marks as invalid return type Iterator, but it passes the params into a test method


IntelliJ inspection gives “Cannot resolve symbol” but still compiles codeTestNG - Dataprovider at Class level test annocationDriver behavior executing parallel TestNG selenium tests with dataprovidertestng dataprovider and iretrylistener data issueTestNG @DataProvider to Return Dynamic ClassDataProvider returning Object[][] does not match argument typeIssue returning a Hashmap from a TestNg DataProviderUsing TestNG @DataProvider, it returns “[Utils] [ERROR] [Error] java.lang.NullPointerException” when calling a method() that returns Object[][]TestNG - Is there a lightweight (not dataprovider, not XML) way to pass parameters among @Test and @BeforeMethods?Relationship between dataprovider in parallel mode and thread parallel “methods” setting













0















When creating a Dataprovider that returns Iterator I have it in my test method, but my intellij-idea marks this return type as invalid and shows the message:
"Data provider must return either Object[][] or Iterator[], or Iterator".



Here is my class/ method:



public class TradeTestDataProvider 

@DataProvider(name = "experimental")
public Iterator<TestCase> createCases() throws IOException
List<TestCase> test = DataReader.generateCasesFromJson("src/test/resources/json/experimental_test_case");
return test.iterator();





Please advise, if I am missing something or it is related to TestNG/IDE issue?



Update:
I created a post to discuss this issue with plugin:
topic










share|improve this question



















  • 1





    Please add your dataprovider class/method as well and please add the code in the form of text/code in the question and not as a screenshot

    – Sameer Arora
    yesterday






  • 1





    It looks intellij-idea plugin issue. Earlier version of TestNG was not supporting single argument and the ide-plugin may not get updated with TestNG updates.

    – user861594
    yesterday











  • @user861594, I think, you are absolutely right, cause when I turned off the plugin, the issue disappeared.

    – Paulus
    9 hours ago















0















When creating a Dataprovider that returns Iterator I have it in my test method, but my intellij-idea marks this return type as invalid and shows the message:
"Data provider must return either Object[][] or Iterator[], or Iterator".



Here is my class/ method:



public class TradeTestDataProvider 

@DataProvider(name = "experimental")
public Iterator<TestCase> createCases() throws IOException
List<TestCase> test = DataReader.generateCasesFromJson("src/test/resources/json/experimental_test_case");
return test.iterator();





Please advise, if I am missing something or it is related to TestNG/IDE issue?



Update:
I created a post to discuss this issue with plugin:
topic










share|improve this question



















  • 1





    Please add your dataprovider class/method as well and please add the code in the form of text/code in the question and not as a screenshot

    – Sameer Arora
    yesterday






  • 1





    It looks intellij-idea plugin issue. Earlier version of TestNG was not supporting single argument and the ide-plugin may not get updated with TestNG updates.

    – user861594
    yesterday











  • @user861594, I think, you are absolutely right, cause when I turned off the plugin, the issue disappeared.

    – Paulus
    9 hours ago













0












0








0


0






When creating a Dataprovider that returns Iterator I have it in my test method, but my intellij-idea marks this return type as invalid and shows the message:
"Data provider must return either Object[][] or Iterator[], or Iterator".



Here is my class/ method:



public class TradeTestDataProvider 

@DataProvider(name = "experimental")
public Iterator<TestCase> createCases() throws IOException
List<TestCase> test = DataReader.generateCasesFromJson("src/test/resources/json/experimental_test_case");
return test.iterator();





Please advise, if I am missing something or it is related to TestNG/IDE issue?



Update:
I created a post to discuss this issue with plugin:
topic










share|improve this question
















When creating a Dataprovider that returns Iterator I have it in my test method, but my intellij-idea marks this return type as invalid and shows the message:
"Data provider must return either Object[][] or Iterator[], or Iterator".



Here is my class/ method:



public class TradeTestDataProvider 

@DataProvider(name = "experimental")
public Iterator<TestCase> createCases() throws IOException
List<TestCase> test = DataReader.generateCasesFromJson("src/test/resources/json/experimental_test_case");
return test.iterator();





Please advise, if I am missing something or it is related to TestNG/IDE issue?



Update:
I created a post to discuss this issue with plugin:
topic







intellij-idea testng testng-dataprovider






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 9 hours ago







Paulus

















asked yesterday









PaulusPaulus

206




206







  • 1





    Please add your dataprovider class/method as well and please add the code in the form of text/code in the question and not as a screenshot

    – Sameer Arora
    yesterday






  • 1





    It looks intellij-idea plugin issue. Earlier version of TestNG was not supporting single argument and the ide-plugin may not get updated with TestNG updates.

    – user861594
    yesterday











  • @user861594, I think, you are absolutely right, cause when I turned off the plugin, the issue disappeared.

    – Paulus
    9 hours ago












  • 1





    Please add your dataprovider class/method as well and please add the code in the form of text/code in the question and not as a screenshot

    – Sameer Arora
    yesterday






  • 1





    It looks intellij-idea plugin issue. Earlier version of TestNG was not supporting single argument and the ide-plugin may not get updated with TestNG updates.

    – user861594
    yesterday











  • @user861594, I think, you are absolutely right, cause when I turned off the plugin, the issue disappeared.

    – Paulus
    9 hours ago







1




1





Please add your dataprovider class/method as well and please add the code in the form of text/code in the question and not as a screenshot

– Sameer Arora
yesterday





Please add your dataprovider class/method as well and please add the code in the form of text/code in the question and not as a screenshot

– Sameer Arora
yesterday




1




1





It looks intellij-idea plugin issue. Earlier version of TestNG was not supporting single argument and the ide-plugin may not get updated with TestNG updates.

– user861594
yesterday





It looks intellij-idea plugin issue. Earlier version of TestNG was not supporting single argument and the ide-plugin may not get updated with TestNG updates.

– user861594
yesterday













@user861594, I think, you are absolutely right, cause when I turned off the plugin, the issue disappeared.

– Paulus
9 hours ago





@user861594, I think, you are absolutely right, cause when I turned off the plugin, the issue disappeared.

– Paulus
9 hours ago












0






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