This blog is written with an objective to understand in detail about functional testing in software testing process, different types of functional testing and how it is different from non-functional testing.
Here we will try to gather all the important concepts of functional testing but for performing a practical test one should require a dedicated training. One such training for 'Test Automation Functional' is provided by QACampus institute in Noida. During this training the testing experts will teach you about functional testing techniques and performing an effective test on software project. Lets start with basic introduction of functional testing :
Functional testing :
This is a type of Quality Assurance process or black-box testing in which the functionality of the integrated software application components are tested by entering input and examining the output. In this, the knowledge of internal working of program code is not required. The output of the test is measured with the expected results for which the software is developed. Functional testing is always carried-out on complete integrated software system. In short we can say that functional testing ensure the working of software application as per the requirement specification.
It involves verification of User Interfaces, database, APIs, client-server applications, security and functionality of software application which is being tested. The testing can be performed either through manual process or through automation by using automation tools.
What should be tested in functional testing?
The main objective of functional test is to check the functionalities of software application. It focuses on some of the below mentioned points :
Major functions : All the essential functions of an application are tested.
Basic Usability : The basic usability like navigation through screens, of the system is tested to ensure efficient use of application without difficulty.
Accessibility : Verifying the accessibility of application system from end user perspective.
Error Conditions : Implementing testing techniques to verify the appearance of error messages according to suitable error conditions.
Process of Functional Test :
To test the functionality of an application, the below mentioned points needs to be considered :
Here we will try to gather all the important concepts of functional testing but for performing a practical test one should require a dedicated training. One such training for 'Test Automation Functional' is provided by QACampus institute in Noida. During this training the testing experts will teach you about functional testing techniques and performing an effective test on software project. Lets start with basic introduction of functional testing :
Functional testing :
This is a type of Quality Assurance process or black-box testing in which the functionality of the integrated software application components are tested by entering input and examining the output. In this, the knowledge of internal working of program code is not required. The output of the test is measured with the expected results for which the software is developed. Functional testing is always carried-out on complete integrated software system. In short we can say that functional testing ensure the working of software application as per the requirement specification.
It involves verification of User Interfaces, database, APIs, client-server applications, security and functionality of software application which is being tested. The testing can be performed either through manual process or through automation by using automation tools.
What should be tested in functional testing?
The main objective of functional test is to check the functionalities of software application. It focuses on some of the below mentioned points :
Major functions : All the essential functions of an application are tested.
Basic Usability : The basic usability like navigation through screens, of the system is tested to ensure efficient use of application without difficulty.
Accessibility : Verifying the accessibility of application system from end user perspective.
Error Conditions : Implementing testing techniques to verify the appearance of error messages according to suitable error conditions.
Process of Functional Test :
To test the functionality of an application, the below mentioned points needs to be considered :
- Find out the requirements
- Identify the input data for testing
- Calculate the selected input values with the expected result
- Execute selected test cases
- Comparing actual output with the calculated expected result
- Unit Testing
- Smoke Testing
- Sanity Testing
- Integration Testing
- White-box testing
- Black-box testing
- Regression Testing
- User Acceptance testing
Different tools of functional testing :
There are many available tools which are used to perform functional test on an application. Some of these are mentioned below :
JUnit – This tool is mainly used to perform Unit test and system test on Java based applications.
SoapUI - This is one of the best open source tool, used to test Web service of an application. It supports different protocols such as HTTP, JDBC, SOAP, etc.
Watir - This is also one of the useful functional testing tool used to test web applications. It use Ruby as scripting language and supports the web browser test execution.
Conclusion :
Functional testing is the quality assurance process in which the functionalities of the software system is tested and ensured that all are working properly as specified in the requirement document. The aim behind this test is to check whether the software system is working properly or not.
There are many available tools which are used to perform functional test on an application. Some of these are mentioned below :
JUnit – This tool is mainly used to perform Unit test and system test on Java based applications.
SoapUI - This is one of the best open source tool, used to test Web service of an application. It supports different protocols such as HTTP, JDBC, SOAP, etc.
Watir - This is also one of the useful functional testing tool used to test web applications. It use Ruby as scripting language and supports the web browser test execution.
Conclusion :
Functional testing is the quality assurance process in which the functionalities of the software system is tested and ensured that all are working properly as specified in the requirement document. The aim behind this test is to check whether the software system is working properly or not.
