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JUnitParams Documentation

repository·master·Indexed 21 days ago

https://github.com/pragmatists/junitparams

A library for JUnit 4.12+ that enables writing parameterized tests by passing parameters directly to test methods via the @Parameters annotation and JUnitParamsRunner. Supports CSV strings, provider classes, and integration with Spring framework version 4.2 and above.

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What's inside JUnitParams

  1. Quickstart: Install JUnitParams

    master

    To use JUnitParams in your project, add the following dependency to your build configuration file.

    ### Maven
```xml
<dependency>
  <groupId>pl.pragmatists</groupId>
  <artifactId>JUnitParams</artifactId>
  <version>1.1.1</version>
  <scope>test</scope>
</dependency>

    Gradle

    testCompile 'pl.pragmatists:JUnitParams:1.1.1'

  2. How to write parameterised tests with JUnitParams

    master

    JUnitParams provides a JUnitParamsRunner that allows you to pass parameters directly into your test method arguments using the @Parameters annotation. This is more concise than standard JUnit 4 parameterised tests because it avoids the need for class-level fields and constructors.

    Key features:

    • Parameters are passed directly to the test method parameters.
    • You can mix parameterised and non-parameterised methods in the same class.
    • Parameters can be provided as a CSV string via @Parameters or from a dedicated provider class.
    • You can use a method within the same test class to provide parameters.
    @RunWith(JUnitParamsRunner.class)
public class PersonTest {

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