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Testing - Interview Questions and Answers for 'Testing' - 42 question(s) found - Order By Rating

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Q1. Can we pass the junit test if the tested method throws the exception ? and Should we do that ?

Ans. Yes, We can pass the test even if the tested method throws an exception.

One way is know as exception testing in which the tested method is expected to throw exception and hence the expectation is set accordingly.

@Test(expected = IndexOutOfBoundsException.class)
public void test(){}

Other way is to just ignore if the tested code throws an exception. In that case , we can enclose the tested method call in the try block and within exception block, we just return gracefully.

Exception testing is perfectly ok to be done as we would like test code in case an exception occurs and if the code is handling the exception properly. Ignoring the exception by putting the tested method call within try block isn't something normal and should be avoided.

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Q2. Can we mock private methods ?

Ans. Yes, using Power Mock.

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Q3. What is stress testing ?

Ans. Stress testing is a software testing activity that determines the robustness of software by testing beyond the limits of normal operation.

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Q4. If you are asked to test an application without any documentation, What type of testing will you do ?

Ans. White Box Testing
Unit Testing
Ad Hoc Testing

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Q5. How would you test a Twitter application ?

^{This question was recently asked at 'Slalom'.This question is still unanswered. Can you please provide an answer.}

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Q6. What is a difference between JUnit 3 and 4 ?

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Q7. can we write multiple CATCH in webdriver code?

Ans. A try block can be followed by one or more catch blocks. Each catch block must contain a different exception handler. So, if you have to perform different tasks at the occurrence of different exceptions, use java multi-catch block.

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Q8. How to work with dynamic webtable ?

Ans. List lists=driver.FindElements(xpath);
int row= lists.size();

List lists=driver.FindElements(xpath);
int column= lists.size();

String value=Rowtable.FindElement(xpath);
system.out.println(value);

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Q9. what is the testcase technique

^{This question was recently asked at 'HCL Technologies'.This question is still unanswered. Can you please provide an answer.}

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Q10. Does it make sense to mock integration calls during stress / load test ?

Ans. No, its usually not done.

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Q11. What is the sequence in which you write different types of autmated test cases ?

Ans. Junits or Unit Tests
Integration Tests
End to End Automation if required
Stress / Load Tests if required

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Q12. What is the sequence in which you write different types of autmated test cases ?

Ans. Junits or Unit Tests
Integration Tests
End to End Automation if required

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Q13. What is doCallRealMethod() method used for ?

Ans. When we Mock an object and then make a reference to any method using mocked object reference , java never makes a call to that method and looks for mocked value to be returned or null if none specified. But If we want that to be overridden and want java to make actual method call upon using mocked object reference, this method can be used.

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Q14. Have you ever heard of the term "dry run" ? What does it mean ?

Ans. It means that the run is just for testing purpose.

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Q15. Please explain with example different types of testing ?

Ans. Unit Testing ( Junits )
Integration Testing ( Testing overall flow by calling the entry method or by calling the service end point )
Manual Testing ( End to End Manual User Testing, they way eventually it will be used by end users )
Automation Testing ( Machine replication of end to end testing )

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Q16. Have you ever built an automation suite to test a cron job or command line application ?

^{This question is still unanswered. Can you please provide an answer.}

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Q17. What does @VisibleForTesting annotation denotes ?

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Q18. How to capture Screenshot when the testcases are failed?

Ans. Using Listeners

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Q19. Difference between emulator and simulator.

^{This question was recently asked at 'Hughes Systique'.This question is still unanswered. Can you please provide an answer.}

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Q20. How do you use Mock frmaework to test webservices in any of your previous project ?

Ans. We were having client methods to call web services and were mocking the client method call using Mockito.

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Q21. Can we mock static methods ?

Ans. Yes we can use PowerMock. With Mockito , we cannot mock static methods.

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Q22. Can and Should we mock calls in integration tests ?

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Q23. Which type of testing involves use of mocking frameworks ?

Ans. Unit Testing

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Q24. What could be the Use Cases for an Elevator system ?

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Q25. What is a Webdriver ?

Ans. Selenium WebDriver is a tool for automating web application testing.It helps in replicating the manual tester behavior like keyboard entry, mouse events etc and then matching the output against the expected.

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Q26. Have you ever tried mocking static methods ?

Ans. Yes, that can be done using Power Mock. Mockito doesnt provide a way to mock static methods.

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Q27. Write a Test Case using Mock ?

Ans. http://javasearch.buggybread.com/CodeSnippets/searchCodeSamples.php?keyword=mock&category=code

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Q28. What are the phases in Software Testing process ?

Ans. Test Planning -> Test Design -> Test Execution -> Evaluating Exit Criteria and Closure

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Q29. What is assert keyword used for ?

Ans. The assert keyword is used to make an assertionâ€”a statement which the programmer believes is always true at that point in the program. This keyword is intended to aid in testing and debugging.

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Q30. Which load testing tools have you used ?

Ans. Rational Robot, JMeter, LoadRunner

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