Advantages of Unit Testing:
- It helps to identify bugs early in the development process before they become more complex and expensive to fix.
- It helps to ensure that changes to the code refrain from introducing new bugs.
- It makes the code more modular and easier to understand and maintain.
- It helps to improve the overall quality and reliability of the software.
- Top-down integration testing: It starts with the highest-level modules and differentiates them from lower-level modules.
- Bottom-up integration testing begins with the lowest-level modules and integrates them with higher-level modules.
- Big-Bang integration testing: It combines and incorporates all the modules simultaneously.
- Incremental integration testing: It integrates the modules in small groups, testing each group as it is added.
Advantages of Integrating Testing:
- It helps to identify and resolve issues that may arise when different software units are combined.
- It helps to ensure that the different software units work together as intended.
- It helps to improve the overall reliability and stability of the software.
- It’s important to remember that Integration testing is essential for complex systems where different components are integrated.
- As with unit testing, integration testing is only one aspect of software testing, and it should be used in combination with other types of testing, such as unit testing, functional testing, and acceptance testing, to ensure that the software meets the needs of its users.
- Retesting involves testing the entire application or specific functionality affected by the changes.
- Re–execution: This consists of running a previously executed test suite to ensure that the changes did not break any existing functionality.
- Comparison: This consists of comparing the software’s current version with a previous version to ensure the changes did not break any existing functionality.
- Testing of Requirements,
- Design and Analysis of Testing,
- Testing of Code,
- Integration testing,
- System testing,
- User Testing.
End to End Testing:
Benefits of End-to-End Testing:
- Improved quality assurance: End-to-end testing can ensure that all software application parts work together correctly and meet their intended business requirements.
- Increased confidence in the software: E2E Testing can increase the belief that the software will function as expected in real-world scenarios, assuring stakeholders that the application is reliable and stable
- Faster detection of defects: E2E testing can help detect defects early in the development cycle, allowing developers to fix the issues before they become more complex and costly
- Reduced costs: End-to-end testing can help reduce the costs associated with defects and bugs detected late in the development cycle or after the application has been deployed
- Better alignment with business requirements: End-to-end testing can help ensure that the application meets the business requirements, making it more likely that the application will be accepted by its intended users
- More efficient testing process: End-to-end testing can help streamline the testing process by testing the application from a user’s perspective rather than trying individual components in isolation, making it easier to identify and address issues that may arise
Steps to Perform End-to-End Testing:
- Analyze requirements. Have a clear idea of how the app is supposed to work in every aspect.
- Set up a test environment in alignment with all the requirements.
- Analyze software and hardware requirements.
- List down how every system needs to respond.
- List down testing methods required to test these responses. Include clear descriptions of each test’s standards (language, tools, etc.).
- Design test cases
- Run tests, study, and save results.
End-to-End Testing Example:
- Type the URL into the address bar to launch the Gmail login page.
- Log into the account with valid credentials.
- Access Inbox. Open Read and Unread emails.
- Compose a new email.
- Reply to and forward an existing email.
- Open the Sent Items folder. Check emails there.
- Open the Spam folder. Check emails there.
- Log out of Gmail by clicking ‘logout.’
Three Types of Activities in End to End Testing:
1. User Functions
- List the features of the software and its interconnected sub-systems.
- For each function, track and record all actions performed. Do the same for all input and output data.
- Identify all relations between user functions.
- Establish if each user function is independent or reusable.
3. Test Cases
- Create multiple test cases to test every functionality of user functions.
- Assign at least a single, separate test case to every condition.
In this Software Testing Tutorial, we will learn about the types of software testing. There are many types of testing and we will understand some of the key testing types in software testing, for example, unit testing, integration testing, system testing, regression testing, smoke testing, sanity testing and lot more.
Software Testing Types can be broadly categorized in two categories, functional testing and non functional testing.