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The process of testing the complete and integrated software product to meet specified requirements is said to be System Testing. The main aim of this testing is to test the whole software product which is already integrated. It is the third level of software testing. Independent software testers will perform this testing.
Working Process of System Testing
Initially, it will perform testing on fully integrated applications to verify that the interaction is made perfect with the system.
To Optimize each and every input of the application or product to get the expected output
Finally, make sure that the application got the desired output which will be ready for the final level of testing
Types of System Testing
It is broadly divided into two types namely Functional Testing and Non-Functional Testing
Again Functional Testing is divided into many types
Acceptance Testing
Beta Testing
Integration Testing
Interface Testing
Regression Testing
System Testing
Sanity Testing
Smoke Testing
Unit Testing
Non-Functional Testing is also divided into many types
Compatibility Testing
Compliance Testing
Install Testing
Localization Testing
Performance Testing
Recovery Testing
Reliability Testing
Security Testing
Usability Testing
Among the above testing types, this testing mainly involves for following types
The process of testing the individual units of software is called Unit Testing. It will be done during the development of a software application. According to the programming procedure, a unit may be an individual function of the software.
Unit Testing is one of the levels of software testing and usually done by the developer. It is the first level of testing. Developers or QA Engineers will handle this testing.
Working Process of Unit Testing
With the help of this testing, we can fix bugs or errors during the development cycle
It enables developers to make changes quickly and saves cost
It helps to get a good quality software product
Unit Testing Types
It is of two types namely Manual or Automated.
Most probably performed by manually but developers always prefer to do automation testing. It is a white box testing technique comes under following test coverage techniques
Branch Coverage
Condition Coverage
Decision Coverage
Statement Coverage
Using White box testing methods
Test cases can be derived that all independent paths within a module have been exercised at least once.
Exercise all logical decisions on their true and false sides.
Executes all loops at their boundaries.
Exercise internal data structures to assure their validity.
Unit Testing Tools
JTest
JUnit
NUnit
JMockit
EMMA
PHPUnit
xUnit.net
TestNG
QuiltHTTP
HTMLUnit
EmbUnit
SimpleTest
ABAPUnit
TypeMock
LRDA
Cantata
Karma
Jasmine
Mocha
Parasoft
Advantages
Developers will be able to understand the functionality of the Unit API
It helps the developers to rewrite and modify the code anytime and ensure the unit works as usual
It helps to test each and every unit of the software application so that named as Unit Testing
Disadvantages
It is very complicated to test each and every unit in large scale programs as it takes a lot of time
There may be a chance of missing units or paths of code in trivial programs
It allows testing only certain units or paths of code so that we are unable to grab the integration errors
Manual Testing is a type of software testing usually done by testers manually to perform test cases and find out the bugs or errors in a software system. Any software application before going under automation testing must be tested manually.
The major role of this testing is to ensure that the system is defect-free and working properly then let it go for the next step in the development life cycle. Name itself says that this testing is done by manually without using any automation tools.
Working Process of Manual Testing:
The initial step is to study and analyze completely the project give
To execute the test cases based upon the business requirements
Perform testing manually to find out any bugs or defects in the software application and fix them
Perform retesting by testers to find out any missing bugs in the system and fix them
Finally, the project will go for the further step after successful completion of testing
Manual Testing
Advantages of Manual Testing:
This Testing can be done through either functional or non-functional
Any kind of software application or system can be tested manually
Disadvantages of Manual Testing:
It requires human intervention
It requires highly skilled testers and longtime process
Based upon the above things it costs high
The testing process will become repetitive so that may get boring
Manual Testing Types:
Actually, any type of software testing can be executed through manually or automatically but below shows the major types of manual testing.
There is a total of four levels of testing available in software testing. Here levels can be defined as the process of each and every component of a system is being tested. These four software testing levels are designed to determine any missing errors or functions of a software application in the development of software testing lifecycle.
The Four Levels of Testing in Software Testing:
Unit Testing
Integration Testing
System Testing
Acceptance Testing
Unit Testing:
It is the first level of testing in Software Testing also one of the types of functional testing. A unit of a software system is being tested to check the performance of the system is said to be Unit Testing. The main function of unit testing is to test each unit or component of a software application separately.
However, it is impossible to test each and every unit of a software system as there is a limitation for a number of scenarios.
Integration Testing:
It is one of the levels of testing in software testing also comes under functional testing types. It is quite opposite to the unit testing. Integration Testing is a combination of different units or modules. To make a group and perform testing to check the performance of a system. The main aim of this testing is to recognize the interface between the modules.
Software Testing Levels
System Testing:
It helps to determine the compliance of a software system which also meets the specific requirements and quality standards. System Testing involves load testing, performance testing, reliability testing and security testing. It also comes under functional testing types and black box testing technique.
However, it is impossible to perform testing on the whole system so that it uses some of the automation testing tools.
Acceptance Testing:
It is the final level of testing in software testing which also comes under one of the functional testing types. Acceptance Testing or User Acceptance Testing (UAT) helps to determine whether the software application is ready to deliver. It plays a major role in checking whether the system meets expected business requirements and quality standards and ready to deliver.
Software Testing is defined as the process of testing the software product to make it defect-free under business requirements and the output results should match with the customer’s expected results. Here in this blog, you can find Functional Testing Types and their usage in software testing.
Functional Testing:
Functional Testing is one of the types of software testing which can be defined as the each and every individual function of a software application needs to be operating with required specification. The major role of Functional Testing is to perform individual functions for a software application with respect to the requirements and specifications. Simply we can say that functions of a system need to be tested by given input and the output results should match with the expected results.
Functional Testing Types and their Usage in Software testing:
Acceptance Testing:
An acceptance testing is used to perform by the client and checks whether the total workflow of the software application is as per the business requirements and satisfies the customer’s expectations. The software application will be accepted by the client only when all the functions of system work as expected. It is also called as User Acceptance Testing (UAT). As the name itself says it is the last phase of testing later the software goes into production.
Beta Testing:
Beta Testing is used to perform in a real-time environment for actual end users before releasing the product into the market. The major aim of it is to check whether there are any failures in the product or not. It must satisfy the business requirements along with customer’s expectations. Beta Testing is usually done by the end users before releasing the product into the worldwide market. It is said to be successful only when the customer accepts the software.
Integration Testing:
Integration Testing is one of the types of functional testing. It is used to perform testing on all integrated modules and checks whether they are working fine when integrated as worked as individually. In other words, we can say that it is used to test the interfaces between modules. In this testing modules are called as code modules, individual applications, server applications, etc.,
Interface Testing:
Interface Testing is also one of the types of functional testing. It is ensured to verify whether the communication between two different software applications is done rightly or not. Mainly it is done in two main segments such as Web server and application server and application server and database server.
The main purpose of it is to ensure that the actual end user should not face any failure while using the software product.
Functional Testing Types
Regression Testing:
Regression Testing means re-testing the software product. After applies the code changes which does not disturb or impact the previous functionality of the product. Usually ensures to verify the functionality of the software product after the modification has been done to the product.
System Testing:
System Testing is defined as testing the whole system including all the modules which are integrated as per the business requirements. It also comes under the black box testing technique. It must be done after integration testing and plays a major role in providing a high-quality product. However, it is difficult to perform testing on the whole system so mainly uses some of the automation testing tools.
Sanity Testing:
Sanity Testing can be defined as if a software application is facing the crashing issues at the initial stage of usage and may not be useful for further testing then there is a need of building an application to fix it. It also comes under one of the functional testing types. It can be done depending on the implementation and its impact.
Smoke Testing:
It is the first phase of testing that should be done on any new build application. Smoke Testing is a type of software testing used to perform a group of tests. It ensures to check whether basic functions of the software application are working correctly as per the business requirements.
Unit Testing:
Unit Testing can be defined as the testing of an individual software module or component. It is quite opposite to the smoke testing. It is usually done by the programmer as the method of writing code to verify the written code in implementing business requirements.
