White Box Testing

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What is Automation Testing What is Black Box Testing

What is White Box Testing

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.

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.

white box testing

What do you verify in White Box Testing?

White box testing involves the testing of the software code for the following;

  • Internal security holes
  • Broken or poorly structured paths in the coding processes
  • The flow of specific inputs through the code
  • Expected output
  • The functionality of conditional loops
  • Testing of each statement, object, and function on an individual basis

White Box Testing Tools

Below is a list of top white box testing tools. They are;

  • Parasoft Jtest
  • EclEmma
  • NUnit
  • PyUnit
  • HTMLUnit
  • CppUnit

Advantages of White Box testing

  • White box tests cases can be easily automated.
  • Testing is more thorough as all code paths are usually covered.
  • Testing can start early in SDLC even if GUI is not available.
  • Code optimization by finding hidden errors.
  • Forces test developer to reason carefully about implementation.
  • Reveals errors in "hidden" code.
  • Spots the Dead Code or other issues with respect to best programming practices.

Disadvantages of White Box Testing

  • White box testing can be quite complex and expensive.
  • White-box testing is time-consuming, bigger programming applications take the time to test fully.
  • White box testing requires professional resources, with a detailed understanding of programming and implementation.
  • Expensive as one has to spend both time and money to perform white box testing.
  • Every possibility that few lines of code are missed accidentally.
  • In-depth knowledge about the programming language is necessary to perform white box testing.

What is Automation Testing What is Black Box Testing

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