It's a type of GUI testing where functionality of an application is tested.
To be specific:
Testing of all features and functions of a system [software, hardware, etc.] to ensure requirements and specifications are met.
Functionality testing of software is testing conducted on a complete, integrated system to evaluate the system's compliance with its specified requirements. Functionality testing falls within the scope of black box testing, and as such, should require no knowledge of the inner design of the code or logic
Functionality testing is what is expected. Load testing is what it actually did.
Functional testing is a process of testing all the functionality of an application.When we create a software, we create it keeping the users of that software in mind. Functional testing test whether the application fulfills the requirement of the user. It means to check whether the functionality of an application are working as expected or not. For example, Login functionality, Compose mail functionality, Delete mail functionality,etc. See the related question below.
A sanity test or sanity check is a basic test to quickly verify if the fixes in code or functionality are working as expected or not. Detailed level testing is not performed here.Main features of Sanity testing are:testing of some limited features.Generally non-scripted or not documentedIs a sub-set of regression testing
The process for testing the functionality of a sensor wafer involves connecting the wafer to testing equipment, applying stimuli to the sensor, collecting and analyzing the data generated by the sensor, and comparing the results to expected values to determine if the sensor is working correctly.
To complete testing application if any modification done any modules or functionality that is called regression testing.
Functional testing is a process of testing all the functionality of an application.When we create a software, we create it keeping the users of that software in mind. Functional testing test whether the application fulfills the requirement of the user. It means to check whether the functionality of an application are working as expected or not. For example, Login functionality, Compose mail functionality, Delete mail functionality,etc.
Error-based testing (also known as reliability, or fault tolerance testing).Additional Information:Monkey and Gorilla testing check the functionality of systems and particular modules within the systems.Monkey testing is designed to test entire systems.Gorilla testing is used to test a particular module extensively.
Fun testing, short for "functionality testing," refers to the process of evaluating a software application to ensure that its features work as intended and provide a satisfying user experience. It focuses on verifying that the application's functionality aligns with user expectations and requirements, often emphasizing ease of use and enjoyment. This type of testing may involve exploratory methods to uncover usability issues and assess how engaging the application is for users.
Website testing includes many techniques : Functionality Testing, Cross browser Testing, Usability testing, Interface testing, Compatibility testing, Performance testing, Security testing and Mobile Testing. For each and every technique there are many different testing tools available on the internet. These tools will be of great help. But they don't provide 100% results. So you must take the help of website testing experts or may outsource website testing services.
System testing has classifications like functional and non functional testing. Hence the functional testing is a part of system testing. System testing allows the testers to test the typical end product. Every single module, interface and every minute detail are needed to be tested in system testing. Functional testing is aimed at testing the functionalities of the product being tested. These functionalities include volume, stress, load, security, scalability, performance etc. Hardware and software is not concerned with functional testing. Functional testing involves testing of functional requirements as per the specification. On the other hand, system testing involves testing the system as a whole. This may involve testing of proper installation and uninstalling of the application. System testing tests for all internal and external components that make the system.
White box testing or unit testing: To do white box testing, knowledge of internal logic code is required. It is mostly done by developers.Black box testing: The functionality of an application is tested; logic code is not required. This testing is done by testers.Block box or system testing: Testing the application without knowledge of underline code of the application. it is done by the testers.
Wikipedia suggests that a whitebox is a computer which is built from readily available components. The words whitebox and blackbox are also used in the context of testing. Whitebox testing is where some knowledge of the interior of the box is available. This allows specific tests to be made to verify the functionality or failure modes of the overall system. Blackbox testing is where only the external functionality of the box (specification) is available.