JUnit 4 to 5 Migration Guide

compile("org.junit.jupiter:junit-jupiter-api:5.3.1")
compile("org.junit.jupiter:junit-jupiter-engine:5.3.1")

Upgrade to newest ihmc-ci Gradle plugin
Searching in *.gradle, *.gradle.kts, replace

ihmc-ci-plugin
ihmc-ci

(us\.ihmc[ \t\x0B\S\.]*ihmc-ci[ \t\x0B:"a-zA-Z)]*)([0-9\.]+)("|')
$1<version>$3

Integrated projects: Remove testSuites block
[ \t\x0B]*testSuites[ \t\x0B]*\{(\R[ \t\x0B]*[\s\w+=\-,\."\[\]]*)+\R}\R\R

Upgrade ihmc-commons
(us\.ihmc[ \t\x0B\S]*("|')ihmc-commons[- \t\x0B:",a-zA-Z)]*)([0-9\.]+)("|')
$1<version>$4

add JUnit 5 imports

Switch test import statements to JUnit 5
import org\.junit\.Test[ \t\x0B]*;
import org.junit.jupiter.api.Test;

Switch test annotations, leaving parameters in a comment; i.e. timeout, expected
([ \t\x0B]*)(@Test)[ \t\x0B]*\((.*)\)
$1$2// $3

replace beforeeach import
import org\.junit\.Before[ \t\x0B]*;
import org.junit.jupiter.api.BeforeEach;

beforeeach
([ \t\x0B]*)@Before[ \t\x0B]*\R
$1@BeforeEach\R

replace beforeall import
import org\.junit\.BeforeClass[ \t\x0B]*;
import org.junit.jupiter.api.BeforeAll;

beforeall
([ \t\x0B]*)@BeforeClass[ \t\x0B]*\R
$1@BeforeAll\R

replace aftereach import
import org\.junit\.After[ \t\x0B]*;
import org.junit.jupiter.api.AfterEach;

aftereach
([ \t\x0B]*)@After[ \t\x0B]*\R
$1@AfterEach\R

replace afterall import
import org\.junit\.AfterClass[ \t\x0B]*;
import org.junit.jupiter.api.AfterAll;

afterall
([ \t\x0B]*)@AfterClass[ \t\x0B]*\R
$1@AfterAll\R

((import us\.ihmc\.continuousIntegration\.ContinuousIntegrationAnnotations[ \t\x0B\S]*;\s*)+)
$1import org.junit.jupiter.api.Tag;\Rimport org.junit.jupiter.api.Disabled;\R

add Disabled import (if needed)
(import org\.junit\.jupiter\.api\.Tag[ \t\x0B\S]*;\s*)
$1import org.junit.jupiter.api.Disabled;\R

fast (actually probably dont add these) (integrated)
([ \t\x0B]*)(@[a-zA-Z\.\s]*ContinuousIntegration\w{4}\s*\([ \t\x0B\S]*categories\w*[ \t\x0B\S]+FAST.*\R)
$1@Tag\("fast"\)\R$1$2

slow (integrated)
([ \t\x0B]*)(@[a-zA-Z\.\s]*ContinuousIntegration\w{4}\s*\([ \t\x0B\S]*categories\w*[ \t\x0B\S]+SLOW.*\R)
$1@Tag\("allocation"\)\R$1$2

video (integrated)
([ \t\x0B]*)(@[a-zA-Z\.\s]*ContinuousIntegration\w{4}\s*\([ \t\x0B\S]*categories\w*[ \t\x0B\S]+VIDEO.*\R)
$1@Tag\("video"\)\R$1$2

ui (integrated)
([ \t\x0B]*)(@[a-zA-Z\.\s]*ContinuousIntegration\w{4}\s*\([ \t\x0B\S]*categories\w*[ \t\x0B\S]+UI.*\R)
$1@Tag\("gui"\)\R$1$2

flaky (integrated)
([ \t\x0B]*)(@[a-zA-Z\.\s]*ContinuousIntegration\w{4}\s*\([ \t\x0B\S]*categories\w*[ \t\x0B\S]+FLAKY.*\R)
$1@Disabled\R$1$2

indev (integrated)
([ \t\x0B]*)(@[a-zA-Z\.\s]*ContinuousIntegration\w{4}\s*\([ \t\x0B\S]*categories\w*[ \t\x0B\S]+IN_DEVELOPMENT.*\R)
$1@Disabled\R$1$2

manual (disabled or converted to demo) (integrated)
([ \t\x0B]*)(@[a-zA-Z\.\s]*ContinuousIntegration\w{4}\s*\([ \t\x0B\S]*categories\w*[ \t\x0B\S]+MANUAL.*\R)
$1@Disabled\R$1$2

exclude
([ \t\x0B]*)(@[a-zA-Z\.\s]*ContinuousIntegration\w{4}\s*\([ \t\x0B\S]*categories\w*[ \t\x0B\S]+EXCLUDE.*\R)
$1@Disabled\R$1$2

replace ignore keeping message
([ \t\x0B]*)(@Ignore)(.*)\R
$1@Disabled$3\R

switch ignore with disabled import (standalone)
import[ \t\x0B]+org\.junit\.Ignore[ \t\x0B]*;[ \t\x0B]*
import org.junit.jupiter.api.Disabled;

remove custom annotations
[ \t\x0B]*@[a-zA-Z\.\s]*ContinuousIntegration\w{4}\s*\([ \t\x0B\S]*\).*\R

remove custom imports
import us\.ihmc\.continuousIntegration\.ContinuousIntegrationAnnotations[ \t\x0B\S]*;\s*\R
import us\.ihmc\.continuousIntegration\.IntegrationCategory[ \t\x0B\S]*;\s*\R

remove junit4 Ignore statement
[ \t\x0B]*import[ \t\x0B]+org\.junit\.Ignore[ \t\x0B]*;[ \t\x0B]*\R

delete existing test suites
*Suite*java*

switch junit to Assert.java
((import\s*static\s*org\.junit\.Assert[ \t\x0B\S]*;\s*)+)
import static us.ihmc.robotics.Assert.*;\R\R

switch junit framework to Assert.java
((import\s*static\s*junit\.framework\.[ \t\x0B\S\.]*;\s*)+)
import static us.ihmc.robotics.Assert.*;\R\R

switch non-static junit to Assert
((import\s*org\.junit\.Assert[ \t\x0B\S]*;\s*)+)
import us.ihmc.robotics.Assert;\R

add to a few projects (ihmc-robot-data-logger, robot-environment-awareness-test, ihmc-parameter-tuner)
compile group: "us.ihmc", name: "ihmc-robotics-toolkit-test", version: "source"

Remove Asserts from main source sets

switch ContinuousIntegrationTools source
import us.ihmc.continuousIntegration.ContinuousIntegrationTools;
import us.ihmc.commons.ContinuousIntegrationTools;

disable on debug thing
a few asserts in footstep planning
a few misc items (<20)

From *.gradle, *.gradle.kts

remove junit4
\R[ \t\x0B]+compile[ \t\x0B\S]*junit[ \t\x0B\S]*junit[ \t\x0B\S]*[0-9\.]+("|')[ \t\x0B\S]*
all*.exclude group: "junit", module: "junit"

add exclude to commons (if alreadly refactored)
(\R[ \t\x0B]+)(compile[ \t\x0B\S]*us.ihmc[ \t\x0B\S]*ihmc-commons[ \t\x0B\S]*[0-9\.]+("|')[ \t\x0B\S]*)
$1$2$1all*.exclude group: "junit", module: "junit"

(mainDependencies\s*\{)[ \t\x0B]*\R([ \t\x0B]+)(compile)
$1\R$2all*.exclude group: "junit", module: "junit"\R$2$3

(testDependencies\s*\{)[ \t\x0B]*\R([ \t\x0B]+)(compile)
$1\R$2all*.exclude group: "junit", module: "junit"\R$2$3

remove junit 5 vintage
([ \t\x0B]+)(compile[ \t\x0B\S]*vintage[ \t\x0B\S]*junit-vintage-engine[ \t\x0B\S]*[0-9\.]+("|')[ \t\x0B\S]*)

remove ihmc-ci-core-api
\R[ \t\x0B]+compile[ \t\x0B\S]*us\.ihmc[ \t\x0B\S]*ihmc-ci-core-api[ \t\x0B\S]*[0-9\.]+("|')[ \t\x0B\S]*

Problem tests:
us.ihmc.atlas.behaviorTests.AtlasBehaviorDispatcherTest > testDispatchPelvisPoseBehavior()

Go through and fing the expected exceptions and add the JUnit 5 assertThrows


	   Assertions.assertThrows(NoSuchElementException.class, () -> 
	   {
       });
	   Assertions.assertThrows(RuntimeException.class, () -> 
	   {
       });

Remove the == 0.0 checks in Assert.java and wrap straight to the JUnit 5 delta assert

Switch Assert to jupiter

((import\s*static\s*us\.ihmc\.robotics\.Assert[ \t\x0B\S]*;\s*)+)
import static org.junit.jupiter.api.Assertions.*;\R\R

Rename all delta methods, adding Delta


Add an XJUnitTools class containing the deltas.


switch Assert import to jupiter plus your custom delta class
((import\s*static\s*us\.ihmc\.robotics\.Assert[ \t\x0B\S]*;\s*)+)
import static org.junit.jupiter.api.Assertions.*;\Rimport static us.ihmc.euclid.tools.EuclidJUnitTools.*;\R\R

switch non-static Assert to jupiter
((import\s*us\.ihmc\.robotics\.Assert[ \t\x0B\S]*;\s*)+)
import org.junit.jupiter.api.Assertions;\R


Delete Assert.java


remove the prefix from all non-imports
org\.junit\.jupiter\.api\.Assertions\.([^*])
$1


remove long casts - run twice
(assert\w+.*)(\(long\) )
$1


remove Object casts - run twice
(assert\w+.*)(\(Object\) )
$1


remove Assert. prefixes
Assert\.assert
assert

Removing JUnit 4 dependencies
,[ \t\x0B]+\{\R[ \t\x0B]+exclude group: "junit", module: "junit"\R[ \t\x0B]+\}\)
, \{ exclude group: "junit", module: "junit" \}\)

compile("us.ihmc:IHMCNativeLibraryLoader:blah", { exclude group: "junit", module: "junit" })