Fault injection testing framework is a type of software testing technique which purposely presents faults to a system to guarantee it can withstand and recover from error conditions. Fault injection testing framework is normally completed before deployment to reveal any potential flaws that may have been presented during production. Like stress testing, fault injection testing is utilized to recognize particular defects in a software or hardware system so they can be fixed or avoided.
Fault injection testing in software can be performed utilizing either compile-time or runtime injections. The compile-time injection is a method wherein testers change the source code to reenact flaws in the product. These progressions can be executed by making changes or mutations to the current code, for example, changing a line of code to represent a different value. Testers can likewise make changes to the code by including or embeddings new code like including further logic values.
Runtime injection will utilize a product trigger to start infusing a flaw to the product while it is running. A trigger can be set to infuse a flaw at a predetermined time, known as a time-based trigger. Triggers can likewise be set utilizing trap mechanisms, which intrude software at a particular area in the code or event in the framework. This is known as an interrupt-based trigger.
Advantages
Advantages to fault injection testing framework include:
- Included software resilience.
- Enables engineers to see the aftereffects of bugs or mistakes before they happen normally in production.
- Enables engineers to make changes to previously unknown issues before discharge.
Disadvantages:
- Requires large development attempts.
- The devotion of this testing method is exceptionally reliant on the precision of the models utilized.
- Intentional injecting of bugs and defects can affect or harm the quality or performance of the product.
Fault injection should be possible manually, and does not require additional tools; nonetheless, tools can be utilized to help automate the procedure. The explanation behind performing such an action is to upgrade the power of the application and to likewise guarantee that our system performs effectively under distressing conditions. The whole idea of fault injection or bebugging can be arranged under a typical term SWIFI stands for Software Implemented Fault Injection.
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