Basics of software testing
There are two basics of software testing: blackbox testing and whitebox testing.
Black box testing is a testing technique that ignores the internal mechanism of the system and focuses on the output generated against any input and execution of the system. It is also called functional testing.
White box testing is a testing technique that takes into account the internal mechanism of a system. It is also called structural testing and glass box testing.
Black box testing is often used for validation and white box testing is often used for verification.
Types of testing
There are many types of testing like
Unit testing is the testing of an individual unit or group of related units. It falls under the class of white box testing. It is often done by the programmer to test that the unit he/she has implemented is producing expected output against given input.
Integration testing is testing in which a group of components are combined to produce output. Also, the interaction between software and hardware is tested in integration testing if software and hardware components have any relation. It may fall under both white box testing and black box testing.
Functional testing is the testing to ensure that the specified functionality required in the systemrequirements works. It falls under the class of black box testing.
System testing is the testing to ensure that by putting the software in different environments (e.g., OperatingSystems) it still works. Systemtesting is done with full system implementation and environment. It falls under the class of black box testing.
Stress testing is the testing to evaluate how system behaves under unfavorable conditions. Testingis conducted at beyond limits of the specifications. It falls under the class of black box testing.
Performance testing is the testing to assess the speed and effectiveness of the system and to make sure it is generating results within a specified time as in performance requirements. It falls under the class of black box testing.
Usability testing is performed to the perspective of the client, to evaluate how the GUI is user-friendly? How easily can the client learn? After learning how to use, how proficiently can the client perform? How pleasing is it to use its design? This falls under the class of black box testing.
Acceptance testing is often done by the customer to ensure that the delivered product meets the requirements and works as the customer expected. It falls under the class of black box testing.
Regression testing is the testing after modification of a system, component, or a group of related units to ensure that the modification is working correctly and is not damaging or imposing other modules to produce unexpected results. It falls under the class of black box testing.
Beta testing is the testing which is done by end users, a team outside development, or publicly releasing full pre-version of the product which is known as beta version. The aim of beta testing is to cover unexpected errors. It falls under the class of black box testing.
Blackbox TestingWhitebox Testing
Unit Testing
Integration Testing
Functional Testing
System Testing
Stress Testing
Performance Testing
Usability Testing
Acceptance Testing
Regression Testing
Beta Testing
Validation testing is to test software if it meets its stated requirements. System testing is the testing of Software and Hardware together and to find out they both can work together to be successful application.
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There are 2 types of Testing 1.Manual testing 2.Automated testing
static and dynamic testing are basic types of testing
Types of testing is broadly classified as Black box testing and white box testing
1. unit testing,integration testing, system testing, user acceptance testing. 2. unit testing, system testing , integration testing,user acceptance testing. 3. unit testing, system testing , user acceptance testing,integration testing. 4. unit testing, ,integration testing, user acceptance testing,system testing.
Integration Testing, abbreviated I&T. Is the phase of software testing in which individual software modules or individual applications, client and server applications on a network, combined and tested as a group. Integration testing is done after Unit testing is completed and before system testing starts. Integration testing takes modules that have been unit tested as its input, groups them in larger aggregates, applies tests defined in an integration test plan to those aggregates, and delivers as its output the integrated system ready for system testing. Different types of integration testing are big bang, top-down, and bottom-up.
It is testing of "how" the system works. Non functional testing may be performed at all test levels. The term non-functional testing describes the tests required to measure characteristics of systems and software that can be quantified on a varying scale, such as response times for performance testing. Types of Non-functional testing are performance testing, load testing, stress testing, usability testing, maintainability testing, reliability testing and portability testing.
1.Path testing 2.Conditional testing 3.Loop testing
Unit regression testing Regional regression testing Full regression testing
System testing is necessary because many of the criteria for test selection at unit and integration testing result in the production of a set of test cases which are unrepresentative of the operating conditions in the live environment.
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