Editing Unit testing (section)

== Parameterized test ==
A [[parameterized test]] is a test that accepts a set of values that can be used to enable the test to run with multiple, different input values. A testing framework that supports parametrized tests supports a way to encode parameter sets and to run the test with each set.

Use of parametrized tests can reduce test code duplication.

Parameterized tests are supported by [[TestNG]], [[JUnit]],{{sfn|Gulati|Sharma|2017|loc=Chapter §7 JUnit 5 Extension Model - Parameterized Test|pp=133-137}} [[XUnit]] and [[NUnit]], as well as in various JavaScript test frameworks.{{cn|date=November 2023}}

Parameters for the unit tests may be coded manually or in some cases are automatically generated by the test framework. In recent years support was added for writing more powerful (unit) tests, leveraging the concept of theories, test cases that execute the same steps, but using test data generated at runtime, unlike regular parameterized tests that use the same execution steps with input sets that are pre-defined.{{cn|date=November 2023}}