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License: Apache License 2.0
Tags: Testing    
Latest version: v1.1.1

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Parameterised tests that don't suck


public class PersonTest {

  @Parameters({"17, false", 
               "22, true" })
  public void personIsAdult(int age, boolean valid) throws Exception {
    assertThat(new Person(age).isAdult(), is(valid));


See more examples

Latest News

  • 2017-11-03 JUnitParams 1.1.1 released. Check [release info](RELEASES.md).

more news here


JUnitParams project adds a new runner to JUnit and provides much easier and readable parametrised tests for JUnit >= 4.12.

Main differences to standard JUnit Parametrised runner:

  • more explicit - params are in test method params, not class fields
  • less code - you don't need a constructor to set up parameters
  • you can mix parametrised with non-parametrised methods in one class
  • params can be passed as a CSV string or from a parameters provider class
  • parameters provider class can have as many parameters providing methods as you want, so that you can group different cases
  • you can have a test method that provides parameters (no external classes or statics anymore)
  • you can see actual parameter values in your IDE (in JUnit's Parametrised it's only consecutive numbers of parameters):


JUnitParams is available as Maven artifact:


To use JUnitParams in a Gradle build add this to your dependencies:

testCompile 'pl.pragmatists:JUnitParams:1.1.1'

If you want to see just one simple test class with all main ways to use JUnitParams see here: https://github.com/Pragmatists/junitparams/tree/master/src/test/java/junitparams/usage

You can also have a look at Wiki:Quickstart

Integration with Spring framework

Since spring version 4.2 it is possible to integrate JUnitParams and spring. More about this here.