feat: Add fast-tests profile and tag slow tests for improved CI performance

Author: mPokornyETM

Jenkinsfile

@@ -2,10 +2,14 @@
  See the documentation for more options:
  https://github.com/jenkins-infra/pipeline-library/
 */
+
+// Skip slow tests on PRs for faster feedback; run all tests on release
+def profile = env.CHANGE_ID ? '-Pfast-tests' : ''
+
 buildPlugin(
   forkCount: '1C', // Run parallel tests on ci.jenkins.io for lower costs, faster feedback
   useContainerAgent: true, // Set to `false` if you need to use Docker for containerized tests
   configurations: [
-    [platform: 'linux', jdk: 25],
-    [platform: 'windows', jdk: 21],
+    [platform: 'linux', jdk: 25, extraMavenArguments: profile],
+    [platform: 'windows', jdk: 21, extraMavenArguments: profile],
 ])

pom.xml

@@ -178,6 +178,16 @@
     </pluginRepository>
   </pluginRepositories>
 
+  <profiles>
+    <!-- Fast tests for PR checks: skip slow tests -->
+    <profile>
+      <id>fast-tests</id>
+      <properties>
+        <excludedGroups>slow</excludedGroups>
+      </properties>
+    </profile>
+  </profiles>
+
   <build>
     <plugins>
       <plugin>

src/test/java/org/jenkins/plugins/lockableresources/LockStepWithRestartTest.java

@@ -11,11 +11,13 @@
 import org.jenkinsci.plugins.workflow.job.WorkflowJob;
 import org.jenkinsci.plugins.workflow.job.WorkflowRun;
 import org.jenkinsci.plugins.workflow.test.steps.SemaphoreStep;
+import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.RegisterExtension;
 import org.jvnet.hudson.test.JenkinsRule;
 import org.jvnet.hudson.test.junit.jupiter.JenkinsSessionExtension;
 
+@Tag("slow")
 class LockStepWithRestartTest extends LockStepTestBase {
 
     private static final Logger LOGGER = Logger.getLogger(LockStepTestBase.class.getName());

src/test/java/org/jenkins/plugins/lockableresources/PressureTest.java

@@ -9,12 +9,14 @@
 import org.jenkinsci.plugins.workflow.cps.CpsFlowDefinition;
 import org.jenkinsci.plugins.workflow.job.WorkflowJob;
 import org.jenkinsci.plugins.workflow.job.WorkflowRun;
+import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.Timeout;
 import org.jvnet.hudson.test.JenkinsRule;
 import org.jvnet.hudson.test.junit.jupiter.WithJenkins;
 
 @WithJenkins
+@Tag("slow")
 class PressureTest extends LockStepTestBase {
 
     private static final Logger LOGGER = Logger.getLogger(PressureTest.class.getName());