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Gradle plugin for running groups of tests with varied runtime requirements.

Features

  • Easily define and run categories of tests
  • Uses the standard gradle test task
  • IDE support for running tests in parallel
  • Built-in allocation testing support for realtime safety
  • Built on JUnit 5, Gradle, and JVM
  • Load resources using file APIs with the resource.dir JVM property
  • runningOnCIServer boolean JVM property to improve running tests locally
  • Support for projects using ihmc-build plugin
  • Generate empty test results when no tests are present to avoid false negative builds
  • Provide list of tests and tags to be run in console output i.e. no uncertainty about which tests are run
  • Set up full lifecycle logging for tests in --info log level i.e. started, passed, failed, skipped

Download

plugins {
   id("us.ihmc.ihmc-build") version "0.15.5"
   id("us.ihmc.ihmc-ci") version "4.7"
}

User Guide

This plugin defines a concept of categories. Categories are communicated via the category Gradle property (i.e. gradle test -Pcategory=fast)and are used to set up a test process to run tests based on tags, parallel execution settings, and JVM arguments.

Custom categories

In your project's build.gradle.kts (Kotlin):

categories.create("scs-slow")
{
   forkEvery = 0   // default: 0
   maxParallelForks = 1   // default: 1
   includeTags += "scs-slow"   // default: all tests, fast tests, or category name
   jvmProperties += "some.arg" to "value"   // default: empty List
   jvmArguments += "-Dsome.arg=value"   // default: empty List
   minHeapSizeGB = 1   // default: 1
   maxHeapSizeGB = 8   // default: 4
}

or in build.gradle Groovy:

def gui = categories.create("gui")
gui.forkEvery = 0
gui.maxParallelForks = 1
gui.minHeapSizeGB = 6
gui.maxHeapSizeGB = 8

def video = categories.create("video")
video.forkEvery = 0  // forkEvery
video.maxParallelForks = 1        // maxParallelForks
video.minHeapSizeGB = 6
video.maxHeapSizeGB = 8

def scsAllocation = categories.create("scs-allocation")
scsAllocation.forkEvery = 0  // forkEvery
scsAllocation.maxParallelForks = 1        // maxParallelForks
scsAllocation.jvmArguments.add("allocationAgent")
scsAllocation.minHeapSizeGB = 6
scsAllocation.maxHeapSizeGB = 8

Special JVM argument accessors:

  • "allocationAgent" - Find location of -javaagent:[..]java-allocation-instrumenter[..].jar

The plugin will do a few other things too:

  • If -PrunningOnCIServer=true, set -DrunningOnCIServer=true.
  • Pass -Dresources.dir that points to your resources folder on disk.
  • Pass -ea JVM argument to enable JVM assertions

Examples

$ gradle test -Pcategory=fast   // run fast tests
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;

@Test
public void fastTest() { ... }   // runs in fast category

@Tag("allocation")
@Test
public void allocationTest() { ... }   // runs in allocation category

Remote Backend (Advanced users only)

The bambooSync task provides a remote web server the authority to fail a build using any dynamic requirements it desires. In our experience, this code has a habit of changing frequently, so this logic is abstracted to the following API.

Set the Gradle property ciBackendHost = 0.0.0.0. This will be places into the following text to form a url: "http://$ciBackendHost/sync"

When the task runs, it sends the project name and "all tests to tags" map.

The task then waits for a response with fail (Boolean), and message (String). If fail == true, the Gradle build will fail with the message.

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