WHITE BOX TESTING IN SOFTWARE TESTING

 WHITE BOX TESTING IN SOFTWARE TESTING 

White box testing techniques examine the internal architecture, code structure, employed data structures, and overall software functioning. It is also known as structural testing. White box testing allows testers to evaluate the software's internal workings by giving them access to the internal code. This enables them to find any possible problems or weaknesses that might occur when the software is being executed. One of the main objectives of white box testing is to ensure that all paths and branches of the software code are tested. 

To ensure maximum coverage, testers can identify the sections of the code that require exercise by looking at the internal structure. This helps in identifying any parts of the code that might not have received enough testing during black box testing, which focuses only on analyzing the software's external behavior. White box testing also helps in uncovering coding errors, such as syntax errors, logical errors, or incorrect assumptions made by the developers. By analyzing the internal structure, testers can identify these errors and work towards rectifying them to enhance the overall quality of the software. 

FEATURES OF WHITE BOX TESTING 

Code-Coverage analysis: White box testing helps in examining an application's code coverage, assisting in identifying the parts of the code that are not being tested. 

Optimization of code: White box testing can assist with code optimization by pointing out any performance problems, excessive code, or other areas that require improvement. 

Security testing: Since white box testing enables testers to find any flaws in the application's code, it can also be utilized for security testing. 

Identifying Coding Mistakes: It locates and fixes syntax and logical mistakes as well as other programming issues in your code. 

Identifying Logical Mistakes: White box testing helps in the detection of logical mistakes in the code, such as misplaced conditional statements or infinite loops.

White Box Testing Techniques 

1. Statement Coverage 

The goal of this method is to go through each statement at least once. Every line of code is therefore tested. Every node in a flowchart needs to be gone through at least once. It helps in identifying dead code and ensuring that all parts of the code are tested. 

2. Branch Coverage 

The term "branch" in programming refers to a factor like a "IF statement," where the two branches are True and False. The "true" branch is validated using one, and the "false" branch is validated using the other. This ensures that all decision points in the code are tested thoroughly. 

3. Condition Coverage 

A testing technique for assessing and testing the variables or sub-expressions in a conditional statement is called condition coverage. Examining each logical condition's result is the aim of condition coverage. It is also known as expression coverage.

4. Multiple Condition Coverage 

Every possible combination of conditions for every decision is assessed in this testing method at least once. 

5. Control Flow Testing 

This testing method seeks to determine the program's execution order. The program's control structure is used to build a test case for the program. To create the testing path, the tester chooses a certain segment of the software. Unit testing is the primary purpose for it. The program's control graph is used to depict the test cases. 

6. Loop Testing 

Loop testing involves designing test cases to execute different scenarios within loops, including zero iterations, one iteration, multiple iterations, and exit conditions. 

Conclusion 

This facilitates system, integration, and unit testing of the program. Verifying logical conditions and their values as true or false result values is also helpful. It assists in determining which loops are at their best and whether any additional looping falls inside a given functionality or area. By taking software testing training in Trivandrum from IPCS Global equips individuals with valuable skills in automating software testing processes, enhancing efficiency, and ensuring the quality of software products. The course typically covers topics such as test automation fundamentals, Selenium WebDriver, testing frameworks, continuous integration, and best practices in test automation.