Regression Testing

Ensure A Bug Free Software Product

Quality-assured, robust Regression Testing implementation

Regression Testing

Regression testing is a type of testing that guarantees changes to an application's source code do not impair the old code's functionality. In software development, every change to the code for enhancements, bug repairs, or new functionality may unintentionally result in the introduction of new problems or the reappearance of old defects.

Therefore, it is always essential to guarantee that the application continues to function properly following modifications. Therefore, regression testing is crucial when an application undergoes continual changes. All modified software should undergo regression testing. Otherwise, the application may fail in the production environment.

Regression Testing critical to delivery of quality services

Regression Testing is critical to the quality delivery of services in any firm that relies on digital. However, doing it quickly and on a large scale can be extremely difficult. Furthermore, the ongoing push from your product teams, who prioritize new product additions over existing quality improvements, makes Regression Testing investments more difficult to justify. Such difficulties lead to unintended errors, which can disrupt work and reduce consumer satisfaction.

At E-Strategy, we conduct regression testing for every code or functionality modification. We develop regression test suites based on business requirements, priority modules, essential features, etc., execute them during each test cycle, and verify that the system is functioning as expected. We select the regression test suite's test cases based on the functionality's importance, frequency of failure, test complexity, coverage of recent code changes, etc.

    Importance of Regression testing in Software Engineering and testing

  • Ensures that changes do not break existing functionality: By re-running tests on existing features and functionality after changes have been made, regression testing ensures that new updates or modifications do not negatively impact the application's existing functionality.
  • Identifies new bugs: Regression testing can also help identify new bugs that may have been introduced because of changes or updates to the application.
  • Increases confidence in changes: By performing regression testing, teams can have confidence that changes made to the application have been thoroughly tested and are unlikely to cause issues.
  • Maintains quality: By performing regression testing, teams can ensure that the application's quality is maintained over time, even as updates and changes are made.
  • Saves time and resources: By identifying issues early on, regression testing can save teams time and resources that would otherwise be spent on troubleshooting and fixing issues that arise later in the development process.

Selenium for Regression Testing

Selenium is a widely used open-source tool for regression testing that automates web browsers to simulate user interactions with web applications. It allows teams to create and run automated test scripts that can be used to verify the functionality of an application after changes or updates have been made.

    Advantages of Selenium as a regression testing tool

  • Cross-browser compatibility: Selenium supports a wide range of web browsers, including Chrome, Firefox, Safari, and Edge, which allows teams to test their applications across multiple browsers and platforms.
  • Language support: Selenium supports multiple programming languages such as Java, C#, Python, Ruby, and JavaScript, which means that teams can use the language that they are most comfortable with when creating test scripts.
  • Easy integration with other tools: Selenium can be easily integrated with other testing tools and frameworks such as JUnit, TestNG, and Jenkins, which allows teams to automate their regression testing processes and integrate them with their existing workflows.
  • Easy to use and learn: Selenium has a simple and intuitive API, which makes it easy for teams to create and run test scripts, even if they have limited programming experience.
  • Large and active community: Selenium has a large and active community of users and developers who contribute to the tool's development and provide support and resources to help teams get the most out of the tool.
  • Cost-effective: Selenium is open-source and free to use, which makes it a cost-effective option for teams that need to perform regression testing.

TestNG for Regression Testing

TestNG is another powerful testing framework for Java that is designed to simplify the process of creating and running regression tests. It is an open-source tool that provides a wide range of features and functionalities that make it an ideal choice for regression testing.

    Advantages of TestNG as a regression testing tool:

  • Flexible test configuration: TestNG allows teams to configure their tests in a variety of ways, such as by using annotations, XML files, or programmatic configuration, which makes it easy to adapt to different testing needs and workflows.
  • Support for data-driven testing: TestNG provides built-in support for data-driven testing, which allows teams to run the same test with different inputs and expected results. This is useful for regression testing as it allows teams to test a wide range of scenarios and identify any issues that may arise.
  • Support for parallel testing: TestNG allows teams to run their tests in parallel, which helps speed up the testing process and allows teams to test their applications faster.
  • Easy integration with other tools: TestNG can be easily integrated with other testing tools and frameworks such as Selenium, JUnit, and Jenkins, which allows teams to automate their regression testing processes and integrate them with their existing workflows.
  • Generates detailed test reports: TestNG generates detailed test reports, which provide teams with valuable information such as test results, test execution times, and test coverage.
  • Support for parameterized tests: TestNG allows teams to pass parameters to their tests, which is useful for regression testing as it allows teams to test a wide range of scenarios

JUnit for Regression Testing

JUnit is another widely used open-source testing framework for Java that is designed to simplify the process of creating and running regression tests. It provides a set of annotations and assertion methods that make it easy for teams to create and run automated test cases.

    Advantages JUnit as a regression testing tool

  • Simple and easy to use: JUnit's simple and intuitive API makes it easy for teams to create and run test cases, even if they have limited programming experience.
  • Supports automated testing: JUnit allows teams to create automated test cases, which can be run repeatedly to verify the functionality of an application after changes or updates have been made.
  • Provides detailed test results: JUnit provides detailed test results, including information about the test execution time, the number of test cases run, and any failures or errors that occurred.
  • Easy integration with other tools: JUnit can be easily integrated with other testing tools and frameworks such as Selenium, TestNG, and Jenkins, which allows teams to automate their regression testing processes and integrate them with their existing workflows.
  • Large and active community: JUnit has a large and active community of users and developers who contribute to the tool's development and provide support and resources to help teams get the most out of the tool.
  • Cost-effective: JUnit is open-source and free to use, which makes it a cost-effective option for teams that need to perform regression testing.

Regression Testing with E-Strategy

E-Strategy has amassed vast experience and competence in digital regression testing over the course of more than 12 years.

Our industry-leading technologies and established best practices automate and optimize Regression Testing processes, guaranteeing sufficient test coverage for your application portfolio and ensuring application updates deliver the expected results for users.

Advantage of Regression Testing with E-Strategy

  • We use an extended team-oriented strategy to provide risk-free regression testing to our clients all around the world.
  • With us, use the benefit of mobile app regression test automation
  • Our team is well-versed in the most recent frameworks and languages, and we employ a variety of tools for regression testing, including Selenium, LoadRunner, TestNG, JUnit
  • Qualitative regression testing delivers better coverage with fewer test cases by mapping and analyzing the connections between requirements and test cases
  • We have a track record of completing projects on schedule and at a reasonable cost

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