whitebox testing interview questions

White Box Testing is software testing technique in which internal structure, design and coding of software are tested to verify flow of input-output and to improve design, usability and security. In white box testing, code is visible to testers so it is also called Clear box testing, Open box testing, Transparent box testing, Code-based testing and Glass box testing.

It is one of two parts of the Box Testing approach to software testing. Its counterpart, Blackbox testing, involves testing from an external or end-user type perspective. On the other hand, White box testing in software engineering is based on the inner workings of an application and revolves around internal testing.

The term “WhiteBox” was used because of the see-through box concept. The clear box or WhiteBox name symbolizes the ability to see through the software’s outer shell (or “box”) into its inner workings. Likewise, the “black box” in “Black Box Testing” symbolizes not being able to see the inner workings of the software so that only the end-user experience can be tested. In this white box testing tutorial, you will learn-

white box testing techniques with examples | interview questions and answers | testingshala

81. We use the output of the requirement analysis, the requirement specification as the input for writing …

Component testing, also known as unit, module, and program testing, searches for defects in and verifies the functioning of software (e.g., modules, programs, objects, classes, etc.) that are separately testable. Component testing may be done in isolation from the rest of the system depending on the context of the development life cycle and the system. Most often stubs and drivers are used to replace the missing software and simulate the interface between the software components simply. A stub is called from the software component to be tested; a driver calls a component to be tested.

Here is an awesome video on Unit Testing

118. What are semi-random test cases?

Semi-random test cases are nothing, but when we perform random test cases and do equivalence partitioning to those test cases, it removes redundant test cases, thus giving us semi-random test cases.

Do you like to switch your career? Heres our recommendation on the important things to need to prepare for the job interview to achieve your career goals in an easy way. White Box Testing is one type of testing where the software is tested completely. If any internal calls are being made in this software, application even those are tested in detail and study the results. Demand to this technology is increasing every day. There is huge demand for jobs related to White Box Testing anywhere. One can check the availability of the job across cities including Mumbai, Delhi, Bangalore, Pune and Hyderabad. Follow Wisdomjobs page for White Box Testing job interview questions and answers page to get through your job interview successfully.


What is white box testing with example?

White box testing techniques analyze the internal structures the used data structures, internal design, code structure and the working of the software rather than just the functionality as in black box testing. It is also called glass box testing or clear box testing or structural testing.

Which techniques are used in white box testing?

White-box test design techniques include the following code coverage criteria:
  • Control flow testing.
  • Data flow testing.
  • Branch testing.
  • Statement coverage.
  • Decision coverage.
  • Modified condition/decision coverage.
  • Prime path testing.
  • Path testing.

What is white box testing discuss?

White box testing is a testing technique, that examines the program structure and derives test data from the program logic/code. The other names of glass box testing are clear box testing, open box testing, logic driven testing or path driven testing or structural testing.

What are the challenges in white box testing?

The disadvantages of white box testing:
  • Certain functionalities could be missed out as only the available code is tested.
  • Many developers are against it as it is a tedious process.
  • It is very time-consuming as the codes must be redesigned along with test cases that need to be rewritten.

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