What does NG mean?

It stands for “Next Generation”. TestNG is similar to JUnit, but it is more productive when it comes to managing the flow of your application. The framework’s architecture helps us make tests more structured and provide better validation points.

Some of the features of TestNG that deserve attention:

• Powerful and diverse annotations to support test cases;
• TestNG utilizes more Java and OOP features;
• Separates compile-time test code and run-time configuration data;
• Parallel test execution, use of dependencies between tests. For example, load and partial failure testing;
• Flexibility to execute tests with different data sets, through the TestNG.xml file or through the concept of data-providers;
• Grouping and prioritization of test cases;
• Generating HTML reports, installing additional software from various plugins;
• The flexible API plugin is especially important;
• Generation of test execution logs.;
• Easy integration with Eclipse, Maven, Jenkins, etc;
• If you’re planning to dive into automation testing, TestNG might be your best bet.

It is sometimes difficult for beginners to understand the point at which they need to start.

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In the early 2000s, developers faced several challenges when using the JUnit framework in large and complex projects. One of the main problems was the limited support for parallel test execution. As test suites became more and more complex, there was a need for a more flexible and scalable tool.

Accordingly, in 2004, Cédric Beust developed and implemented TestNG.

This was a response to the limitations of JUnit, one of the most popular testing frameworks at the time.

And one of the main goals of TestNG was to provide developers with a flexible and highly customizable framework that could meet the requirements of large projects.

In 2004-2006, the framework began to spread and become popular in the Java development community. By 2010, TestNG became stable and received new features, including support for parameterization and test grouping.

Over time, TestNG has become a standard in the development industry, gaining the trust of thousands of companies and developers around the world. With its help, developers have been able to create complex test scenarios, manage dependencies between tests, and easily integrate them into continuous integration and deployment processes.

The current version (7.4.0) contains improvements and optimizations, making the framework powerful and reliable for automated testing in modern projects.

Features and benefits

The unique features of the framework make the testing process not only efficient but also convenient for developers. Let’s look at the key aspects that make it so popular among professionals:

Using annotations for test management

TestNG provides a powerful and intuitive mechanism for managing tests using annotations. This allows developers to write clean, readable, and easily managed test code.

Support for parallel and multi-threaded test execution

One of the key features of the framework is the ability to execute tests in parallel in different threads. This not only increases the execution speed but also allows you to effectively test complex applications with a large number of modules.

Flexible configuration of test scenarios

With TestNG, developers can adapt test scenarios to different test conditions. With the help of XML configuration files, such as testng.xml, you can define the order of test execution, launch parameters, and even parameterize test suites for wider coverage of test scenarios.

Such features make the framework an indispensable tool for test automation, as it provides high flexibility, performance, and accuracy in solving various test tasks.

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