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Examples Of Stubs And Drivers In Software Testing


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Examples Of Stubs And Drivers In Software Testing


Stubs and drivers are two types of test harness that are a collection of software and test, which means they are designed together to test a unit of a program by accelerating the change of situations at the same time as regularly checking its performances and results.


Stubs are mainly used in top-down integration testing; on the other hand, drivers are mainly used in bottom-up integration testing individually and designed the enhance the testing process.


Both Stubs and drivers are the essential part of the basic software development and software testing process. Thus, to help us understand the substance of stubs and drivers in software testing, we will see an exhaustive discussion.


And it is not possible to test Module-P on the lack of Module-Q. Thus, in such scenarios, we will take the help of Stubs and Drivers in the software testing process.


The Stubs and drivers will replicate all the basic functionality and features displayed by the real Module-Q. And subsequently, it is being combined with Module-P in order to execute the testing process effectively.


In the same way, stubs and drivers are used to accomplish the requirements of other modules, such as the Sign-out page, which comes under the Module-S and needs to be aimed to the Login page (Module-P) after effectively logging out from the particular application.


Yes, we can say that both stubs and drivers carry out similar features and objectives. Both of them act as an alternative for the missing or absent module. But, the change between them can be pictured throughout the integration testing process.


Stubs and Drivers : The Stubs and Drivers are considered as elements which are equivalent to to-do modules that could be replaced if modules are in their developing stage, missing or not developed yet, so that necessity of such modules could be met. Drivers and stubs simulate features and functionalities, and have ability to serve features that a module can provide. This reduces useless delay in testing and makes the testing process faster.


2. Drivers : Drivers serve the same purpose as stubs, but drivers are used in Bottom-up integration testing and are also more complex than stubs. Drivers are also used when some modules are missing and unavailable at time of testing of a specific module because of some unavoidable reasons, to act in absence of required module. Drivers are used when high-level modules are missing and can also be used when lower-level modules are missing.


At first glance this may seem impossible because it is hard to imagine how you can test one "piece" if the other "pieces" that it uses have not yet been developed (and vice versa). The way around this conundrum is to use stubs and drivers.


Integration Testing is defined as a type of testing where software modules are integrated logically and tested as a group. A typical software project consists of multiple software modules, coded by different programmers. The purpose of this level of testing is to expose defects in the interaction between these software modules when they are integrated


Stubs and Drivers are the dummy programs in Integration testing used to facilitate the software testing activity. These programs act as a substitutes for the missing models in the testing. They do not implement the entire programming logic of the software module but they simulate data communication with the calling module while testing.


Top Down Integration Testing is a method in which integration testing takes place from top to bottom following the control flow of software system. The higher level modules are tested first and then lower level modules are tested and integrated in order to check the software functionality. Stubs are used for testing if some modules are not ready.


Sandwich Testing is a strategy in which top level modules are tested with lower level modules at the same time lower modules are integrated with top modules and tested as a system. It is a co




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