What are the different types of Software Testing?

What are the different types of Software Testing?

Software testing is an integral part of Software development cycle and it aids in creating a high-quality software product. Testing is not something which will be done at the end of development instead it is a continued process which has to be done simultaneously with development. Testing can be broadly categorized into two types namely verification and validation. Let us look at different types of software testing in detail.

Unit Testing

This is the process of testing a single unit of code or a module which serves a specific objective. Unit testing is mostly done by the developers rather than testers. It involves developing a test case and checking whether the module functions as per the requirements without errors.

Integration Testing

This is the process of testing a group integrated modules to test whether the grouped modules are integrated correctly and it offers the desired output. Integration can be between client-server integration, integration of standalone modules, integration of applications, third party integration, etc. When 2 or more modules are integrated it might result in some errors which can be determined and corrected using integration testing. It also ensures that the modules communicate with each other without flaws.

Functional Testing

In this phase, the internal code structure and mechanism is completely ignored and the application is tested only for its core functionality. The application is executed in a test environment and the output is matched against the desired output mentioned in the requirement specification. If there are any mismatches or errors they are documented and corrected subsequently.

System Testing

This is a perfect case of black box testing. Here the complete software application is tested fully in various environments and platforms. This can be done only after development is completed. In this phase, all the functions and requirements are thoroughly tested on various platforms and devices.

Stress Testing

Stress testing is carried out to determine under which levels of load the system crashes or fails. The application is tested in an environment with heavy loads and stress. As the load increases the system will start slowing down and at some point, it will become dysfunctional. This helps the developers to understand the ability of the product under stress.

Performance testing

Various metrics for efficiency, performance, speed are determined and the application is tested against these metrics. The application is tested for speed and performance.

Usability Testing

This is one of the most important testings which ensures a smooth UX for the users. Here the application flow is tested for user-friendliness. Various UI and UX behaviors are tested and the results are documented for optimization.

Security Testing

Here the software application is tested for various security threats and vulnerabilities. This software testing will safeguard the application from hackers and potential future attacks in real-time.

Beta Testing

This is done either by a third party or by the end users. A fully functionally beta version is released to the public for their testing. This will provide valuable insights and errors that happen in real-time.

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