Here’s a list of all the features that you can expect from JUnit Pioneer. For some of them you need to be quite familiar with JUnit 5, so make sure to read its user guide or this article series.

Cartesian Product of Parameters
The JUnit 5 (Jupiter) extension `@CartesianTest` adds a variant of parameterized tests that executes a test for each possible combination of input arguments
Default Locale and TimeZone
The JUnit 5 (Jupiter) extensions `@DefaultLocale` and `@DefaultTimeZone` change the runtime's default locale and time zone as returned from `Locale.getDefault()` and `TimeZone.getDefault()` for the duration of a test
Disable Tests if Others Fail
The JUnit 5 (Jupiter) extension @DisableIfTestFails disables all tests in a class once the first test failed
Disable Parameterized Test
The JUnit 5 (Jupiter) extensions `@DisableIfDisplayName`, `@DisableIfArgument`, and more selectively disable parameterized tests based on their display name or argument values
Disable a Test Temporarily
The JUnit 5 (Jupiter) extension `@DisabledUntil` temporarily disables a test until a certain date
Clearing or Setting Environment Variables
The JUnit 5 (Jupiter) extensions `@ClearEnvironmentVariable`/`@SetEnvironmentVariable` clear/set the values of environment variables for the duration of a test
Expected-to-Fail Tests
The JUnit 5 (Jupiter) extension `@ExpectedToFail` marks a test method as 'expected to fail', which marks a failing test as aborted and a passing test as failed
Issue Information
The JUnit 5 (Jupiter) extension `@Issue` associates test information (e.g. passed or failed) an issue number
JSON Argument Source
The JUnit 5 (Jupiter) extensions `@JsonSource`, `@JsonFileSource`, and `@JsonClasspathSource` allow passing arguments to a parametrized test that where read from inline JSON or a JSON file
Range Sources
The JUnit 5 (Jupiter) extensions `@IntRangeSource`, `@FloatRangeSource`, etc. provide series of numbers as argument sources for parameterized tests
Publishing Report Entries
The JUnit 5 (Jupiter) extension `@ReportEntry` declaratively publishes report entries via the `TestReporter`
Injecting Resources
A JUnit 5 (Jupiter) extension mechanism to create, share, and inject resources like temporary directories or a port
Retrying Failing Tests
The JUnit 5 (Jupiter) extension `@RetryingTest` retries a failing test a certain number of times; only marking the test failed if no execution passes
Standard Input and Output
The JUnit 5 (Jupiter) extension `@StdIo` simulates standard input to `System.in` and captures standard output to `System.out` or `System.err` for assertions
Measuring Test Run Time
The JUnit 5 (Jupiter) extension `@Stopwatch` measures elapsed time of a test method
Clearing or Setting System Properties
The JUnit 5 (Jupiter) extensions `@ClearSystemProperty`/`@SetSystemProperty` clear/set the values of system properties for the duration of a test
Injecting Temporary Directories
The JUnit 5 (Jupiter) extension `@Dir` allows to create, share, and inject temporary directories as arguments
Vintage @Test
The JUnit 5 (Jupiter) extension `@Test` is a drop-in replacement for JUnit 4's `@Test` annotation, including `expected` and `timeout`

To start using JUnit Pioneer, determine the latest version (e.g. on Maven Central) and add org.junit-pioneer : junit-pioneer as a test dependency.