Very often people tend to get confused between Unit Testing and Module Testing and as a result, use both terms interchangeably. The fact is that these two testing techniques are different as Unit Testing is conducted during the development phase while Module Testing is done once the particular function is fully developed. On these lines, this article tries to provide the reader an insight into Module Testing.
Testing of modules, which are completely developed pieces of rational source code that can ideally be evaluated by driving a few function signatures, is known as Module Testing.
These days, the programs that are written while developing a software are huge and complex. It is practically not possible to test the various parts of a big software all at once. Therefore arises the need to break it down into self-contained units that can be tested as a fully developed function. This task is achieved through Module Testing.
When it comes to Module Testing, each module has to be combined or integrated with the next one. There are two main ways of achieving this integration. These are:
There are two basic approaches that can be utilized while combining modules, these are:
From the above discussion it is quite clear that Module Testing is imperative to finding bugs that exist in each individual module. Also, it an effective way of removing each minuscule bug that interferes with smooth running of the program. Module Testing is the best way of testing large software so that the final launch product performs accurately and meets business requirements. But, clearly one should not confuse themselves with thinking that it is the same as Unit Testing. Both Module Testing and Unit Testing are two separate techniques that aim to find bugs in the system but are executed at a different time of the developmental lifecycle.