Migration to junit 5

[carstenartur]

run the upcoming junit 4 to junit 5 migration cleanup

What it does

This Pr changes a bunch of tests from using JUnit 4 to JUnit 5.
It does not change anything at all about how jdt.ui works. Changes are in the testing code only.
However in the testing code it should not change anything neither. The migration from JUnit 4 suites to JUnit 5 suites was able to boost performance a little bit. I am not aware of similar effects in the testing code. So what this Pr gives you is that the affected classes are following a testing pattern using a actively maintained release for the first time in the last 20(?) years.

How to test

Count the number of tests and check results.

Author checklist

• I have thoroughly tested my changes
• The change is following the coding conventions
• I have signed the Eclipse Contributor Agreement (ECA)

[eclipse-jdt-bot]

This pull request changes some projects for the first time in this development cycle.
Therefore the following files need a version increment:

org.eclipse.jdt.text.tests/META-INF/MANIFEST.MF
org.eclipse.jdt.text.tests/pom.xml
org.eclipse.jdt.ui.tests.refactoring/META-INF/MANIFEST.MF
org.eclipse.jdt.ui.tests.refactoring/pom.xml
org.eclipse.jdt.ui.tests/META-INF/MANIFEST.MF
org.eclipse.jdt.ui.tests/pom.xml

An additional commit containing all the necessary changes was pushed to the top of this PR's branch. To obtain these changes (for example if you want to push more changes) either fetch from your fork or apply the git patch.

Git patch

From 3af479d1b7f4f53e2b48b1e794e645672efe4466 Mon Sep 17 00:00:00 2001
From: Eclipse JDT Bot <jdt-bot@eclipse.org>
Date: Wed, 27 Nov 2024 16:19:42 +0000
Subject: [PATCH] Version bump(s) for 4.35 stream


diff --git a/org.eclipse.jdt.text.tests/META-INF/MANIFEST.MF b/org.eclipse.jdt.text.tests/META-INF/MANIFEST.MF
index 5fa7dbb471..b3b6d006ff 100644
--- a/org.eclipse.jdt.text.tests/META-INF/MANIFEST.MF
+++ b/org.eclipse.jdt.text.tests/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@ Automatic-Module-Name: org.eclipse.jdt.text.tests
 Bundle-ManifestVersion: 2
 Bundle-Name: %Plugin.name
 Bundle-SymbolicName: org.eclipse.jdt.text.tests;singleton:=true
-Bundle-Version: 3.14.600.qualifier
+Bundle-Version: 3.14.700.qualifier
 Bundle-Activator: org.eclipse.jdt.text.tests.JdtTextTestPlugin
 Bundle-ActivationPolicy: lazy
 Bundle-Vendor: %Plugin.providerName
diff --git a/org.eclipse.jdt.text.tests/pom.xml b/org.eclipse.jdt.text.tests/pom.xml
index 67c19fdd52..e2192b0866 100644
--- a/org.eclipse.jdt.text.tests/pom.xml
+++ b/org.eclipse.jdt.text.tests/pom.xml
@@ -20,7 +20,7 @@
   </parent>
   <groupId>org.eclipse.jdt</groupId>
   <artifactId>org.eclipse.jdt.text.tests</artifactId>
-  <version>3.14.600-SNAPSHOT</version>
+  <version>3.14.700-SNAPSHOT</version>
   <packaging>eclipse-test-plugin</packaging>
 
   <properties>
diff --git a/org.eclipse.jdt.ui.tests.refactoring/META-INF/MANIFEST.MF b/org.eclipse.jdt.ui.tests.refactoring/META-INF/MANIFEST.MF
index a24eba260e..2efd1cf0d3 100644
--- a/org.eclipse.jdt.ui.tests.refactoring/META-INF/MANIFEST.MF
+++ b/org.eclipse.jdt.ui.tests.refactoring/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@ Automatic-Module-Name: org.eclipse.jdt.ui.tests.refactoring
 Bundle-ManifestVersion: 2
 Bundle-Name: %Plugin.name
 Bundle-SymbolicName: org.eclipse.jdt.ui.tests.refactoring; singleton:=true
-Bundle-Version: 3.15.700.qualifier
+Bundle-Version: 3.15.800.qualifier
 Bundle-Activator: org.eclipse.jdt.ui.tests.refactoring.infra.RefactoringTestPlugin
 Bundle-ActivationPolicy: lazy
 Bundle-Vendor: %Plugin.providerName
diff --git a/org.eclipse.jdt.ui.tests.refactoring/pom.xml b/org.eclipse.jdt.ui.tests.refactoring/pom.xml
index ea744d4d55..d022ae62b8 100644
--- a/org.eclipse.jdt.ui.tests.refactoring/pom.xml
+++ b/org.eclipse.jdt.ui.tests.refactoring/pom.xml
@@ -19,7 +19,7 @@
   </parent>
   <groupId>org.eclipse.jdt</groupId>
   <artifactId>org.eclipse.jdt.ui.tests.refactoring</artifactId>
-  <version>3.15.700-SNAPSHOT</version>
+  <version>3.15.800-SNAPSHOT</version>
   <packaging>eclipse-test-plugin</packaging>
   <properties>
     <testSuite>${project.artifactId}</testSuite>
diff --git a/org.eclipse.jdt.ui.tests/META-INF/MANIFEST.MF b/org.eclipse.jdt.ui.tests/META-INF/MANIFEST.MF
index d45cf11af6..05d3c9025c 100644
--- a/org.eclipse.jdt.ui.tests/META-INF/MANIFEST.MF
+++ b/org.eclipse.jdt.ui.tests/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@ Automatic-Module-Name: org.eclipse.jdt.ui.tests
 Bundle-ManifestVersion: 2
 Bundle-Name: %Plugin.name
 Bundle-SymbolicName: org.eclipse.jdt.ui.tests; singleton:=true
-Bundle-Version: 3.15.700.qualifier
+Bundle-Version: 3.15.800.qualifier
 Bundle-Activator: org.eclipse.jdt.testplugin.JavaTestPlugin
 Bundle-Vendor: %Plugin.providerName
 Bundle-Localization: plugin
diff --git a/org.eclipse.jdt.ui.tests/pom.xml b/org.eclipse.jdt.ui.tests/pom.xml
index a08ead2af4..b9769c520e 100644
--- a/org.eclipse.jdt.ui.tests/pom.xml
+++ b/org.eclipse.jdt.ui.tests/pom.xml
@@ -20,7 +20,7 @@
   </parent>
   <groupId>org.eclipse.jdt</groupId>
   <artifactId>org.eclipse.jdt.ui.tests</artifactId>
-  <version>3.15.700-SNAPSHOT</version>
+  <version>3.15.800-SNAPSHOT</version>
   <packaging>eclipse-test-plugin</packaging>
   <properties>
     <defaultSigning-excludeInnerJars>true</defaultSigning-excludeInnerJars>
-- 
2.47.0

Further information are available in Common Build Issues - Missing version increments.

[jjohnstn]

Thanks @carstenartur.