Functional testing is the process of executing a software application to check whether it meets its business requirements or not. It can be said that functional testing is one of the most important types of testing. There are many types of tests like regression testing, system testing, black-box testing etc. Functional tests are generally classified into two categories:
Functional testing can be classified into different types according to the purpose of the test. Some of these types are:
1) Unit testing: As the name suggests, unit testing is done at the unit level. This means that each function or method is tested for its correctness. For example, in a web application, unit testing is done on the controller functions.
2) Integration testing: As the name suggests, integration testing checks if different parts of an application work together correctly. For example, in a web application, integration testing is done between the controller and model layer to check if they are correctly interacting with each other. Also, this test is carried out to ensure data is being transferred between different layers of the application correctly.
3) GUI testing: This type of testing is done to check if the user interface does what it is supposed to do and can be used by customers. For example, in a web application, GUI testing is done on the home page and other important pages to check that all the links are working, forms can be submitted, and data can be fetched properly.
4) Smoke testing: Smoke testing is done to check if an application can be started at all. This type of testing is usually done before starting any other type of testing.For example- if you are testing an application used to book appointments, the smoke test could be as simple as starting the application and checking if it can open.Add an example here
5) System testing: This type of testing ensures that all aspects of the system are working properly. For example, a web application will test if both the customer-facing and back ends are running smoothly. For example, if you are testing a payroll application, the system test would include ensuring that the application can correctly calculate paychecks for employees.
6) Acceptance testing: Acceptance testing checks whether your product meets its requirements (e.g., business goals, technical specifications) and stands up to customer scrutiny. For example, in a web application, acceptance testing can be done to check if the pages are loading quickly or not.
Why is Functional testing is important?
Functional testing is very important as it ensures that the application works for end-users. If something goes wrong with this type of testing, customers will face problems and might give negative reviews for your product. Also, functional testing is important to ensure that the application meets its requirements and stands up to customer scrutiny.
Why do you get functional testing services?
Nowadays, most organizations prefer to outsource their functional testing services. There are lots of reasons why an organization might choose to outsource their testing, and some of these reasons are:
1) Lack of in-house resources: Functional testing is a time-consuming and complex process, and not many organizations have the resources to undertake this type of testing. This might be because not many people have good experience in testing and it’s a new process for them. So, you can get functional testing service from an outsourced company that has the required skills and expertise to undertake this complex process.
2) Customer needs: In today’s competitive world, organizations have to ensure that they provide a quality product at the earliest. This is the need of the hour as customers today always think about value for their money. By delivering high-quality functional testing service, you can win customers’ trust and improve your market share.
3) Cost saving: Outsourcing functional testing saves recruitment, training, infrastructure, technology and tools etc. This is because an outsourced company will already have required resources in place, which you don’t need to invest in. Also, the outsourcing company offers fixed costs for functional testing, which means that they charge a certain fee each month irrespective of several test cases being executed. So it reduces your risk as you are not paying for something which may not be delivered.
4) Time saving: By outsourcing functional testing, you can save a lot of time as the outsourced company will take care of all aspects of functional testing. This includes planning, designing, executing and reporting the results. So, you can focus on your core business activities and leave the task of functional testing to the experts.
Functional testing is an important testing phase as it ensures that your application works for end-users. If anything goes wrong with this type of testing, customers will face problems and might give negative reviews on your product. By outsourcing testing, you can save a lot of time as the outsourced company will take care of all the aspects related to testing. They will include planning, designing, executing and reporting the results. So, you can focus on your core business activities and leave the task of functional testing to the experts.