software testing
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Software testing is the process of evaluating software by comparing actual program output to expected results. It involves verifying that the software meets requirements and validating that it fulfills its intended purpose. There are various types of testing, including static testing which finds defects without executing code, and dynamic testing which executes the code. Common types are unit, integration, functional, system, and acceptance testing. The goal of testing is to identify errors, ensure quality, and confirm that software works as intended.
software testing
- 2. Software Testing • Software testing is the process of evaluation a software item to detect differences between given input and expected output. Also to assess the feature ofA software item. • Software testing is a process that should be done during the development process. • In other words software testing is a verification and validation process.
- 3. Software Testing Verification • Verification is the process to make sure the product satisfies the conditions imposed at the start of the development phase. In other words, to make sure the product behaves the way we want it to. Validation • Validation is the process to make sure the product satisfies the specified requirements at the end of the development phase. In other words, to make sure the product is built as per customer requirements.
- 4. Basics of software testing BlackboxTesting • 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. WhiteboxTesting • 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.
- 5. software testing categories StaticTesting • It can test and find defects without executing code. StaticTesting is done during verification process. This testing includes reviewing of the documents (including source code) and static analysis.This is useful and cost effective way of testing. For example: reviewing, walkthrough, inspection, etc. DynamicTesting: • In dynamic testing the software code is executed to demonstrate the result of running tests. It’s done during validation process. For example: unit testing, integration testing, system testing, etc.
- 6. Types of testing • There are many types of testing like • UnitTesting • IntegrationTesting • FunctionalTesting • SystemTesting • StressTesting • PerformanceTesting • UsabilityTesting • AcceptanceTesting • RegressionTesting • BetaTesting
- 7. • UnitTesting • 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. • IntegrationTesting • 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. • FunctionalTesting • Functional testing is the testing to ensure that the specified functionality required in the system requirements works. It falls under the class of black box testing.
- 8. • SystemTesting • System testing is the testing to ensure that by putting the software in different environments (e.g., Operating Systems) it still works. System testing is done with full system implementation and environment. It falls under the class of black box testing. • StressTesting • Stress testing is the testing to evaluate how system behaves under unfavorable conditions.Testing is conducted at beyond limits of the specifications. It falls under the class of black box testing. • PerformanceTesting • 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.
- 9. • UsabilityTesting • 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. • AcceptanceTesting • 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. • RegressionTesting • 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.
- 10. • BetaTesting • 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.