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Cucumber vs TestNG: What are the differences?

Cucumber and TestNG are both popular testing frameworks used in software development. While they serve the same purpose of facilitating automated testing, there are several key differences between the two. Let's explore these differences below:

  1. Language: Cucumber is primarily used with the Gherkin language, which is a business-readable, domain-specific language designed to describe user behaviors in a plain-text format. On the other hand, TestNG supports a wide range of programming languages such as Java, Kotlin, and Groovy, providing developers with more flexibility in choosing the language they are comfortable with.

  2. Test Structure: Cucumber follows a behavior-driven development (BDD) approach, where tests are written in a human-readable format with the help of feature files, scenarios, and step definitions. These methods make it easier to collaborate between the development and testing teams. TestNG, on the other hand, is primarily based on a unit testing framework and follows a more traditional approach, allowing developers to write tests in a programmatic manner.

  3. Reporting: Cucumber provides detailed and easy-to-understand reports that are generated automatically after each test run. These reports include information about the features, scenarios, step definitions, and their execution status, making it easier to analyze the test results. TestNG also generates reports, but they are generally less detailed compared to Cucumber.

  4. Parallel Execution: TestNG offers built-in support for parallel test execution, allowing developers to run tests concurrently across multiple threads or on different machines. This feature significantly reduces the overall test execution time, especially in larger projects with a large number of tests. Cucumber, on the other hand, does not have native support for parallel execution, although it can be achieved through custom implementation.

  5. Integration with Other Tools: Cucumber integrates well with other tools and frameworks, such as Selenium, to enable end-to-end testing. Its language-agnostic nature allows it to be used with various programming languages and automation tools. TestNG also integrates well with popular tools like Maven, Jenkins, and Eclipse, offering a seamless workflow for test management and continuous integration.

  6. Testing Approach: Cucumber focuses more on behavior-driven development, where tests are written in a format that non-technical stakeholders can understand. This approach promotes better collaboration between teams and ensures that the software meets the specific business requirements. TestNG, on the other hand, is suited for unit testing and follows a more traditional testing approach, where code is tested at a granular level to ensure its correctness.

In summary, Cucumber and TestNG differ in terms of the language they support, test structure, reporting capabilities, support for parallel execution, integration with other tools, and the testing approach they promote. Understanding these differences can help developers and testers choose the most suitable framework for their testing needs.

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Pros of Cucumber
Pros of TestNG
  • 20
    Simple Syntax
  • 8
    Simple usage
  • 5
    Huge community
  • 3
    Nice report
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    What is Cucumber?

    Cucumber is a tool that supports Behaviour-Driven Development (BDD) - a software development process that aims to enhance software quality and reduce maintenance costs.

    What is TestNG?

    It is a testing framework designed to simplify a broad range of testing needs, it covers all categories of tests: unit, functional, end-to-end, integration, etc.Run your tests in arbitrarily big thread pools with various policies available (all methods in their own thread, one thread per test class, etc.

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    What companies use Cucumber?
    What companies use TestNG?
    See which teams inside your own company are using Cucumber or TestNG.
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    What tools integrate with Cucumber?
    What tools integrate with TestNG?

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    What are some alternatives to Cucumber and TestNG?
    Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that. Boring web-based administration tasks can (and should!) also be automated as well.
    Behaviour Driven Development for Ruby. Making TDD Productive and Fun.
    JUnit is a simple framework to write repeatable tests. It is an instance of the xUnit architecture for unit testing frameworks.
    Celery is an asynchronous task queue/job queue based on distributed message passing. It is focused on real-time operation, but supports scheduling as well.
    JavaScript is most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js or Apache CouchDB. It is a prototype-based, multi-paradigm scripting language that is dynamic,and supports object-oriented, imperative, and functional programming styles.
    See all alternatives