Cucumber vs TestNG: What are the differences?
Developers describe Cucumber as "Simple, human collaboration". Cucumber is a tool that supports Behaviour-Driven Development (BDD) - a software development process that aims to enhance software quality and reduce maintenance costs. On the other hand, TestNG is detailed as "A testing framework inspired from JUnit and NUnit". 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.
Cucumber and TestNG can be primarily classified as "Testing Frameworks" tools.
Cucumber is an open source tool with 2.58K GitHub stars and 502 GitHub forks. Here's a link to Cucumber's open source repository on GitHub.