Add @Symbol("publishTap") to TapPublisher Descriptor and pipeline test

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "java.configuration.updateBuildConfiguration": "interactive"
+}

pom.xml

@@ -130,6 +130,11 @@ SOFTWARE.
       <artifactId>workflow-cps</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.jenkins-ci.plugins.workflow</groupId>
+      <artifactId>workflow-step-api</artifactId>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>

src/main/java/org/tap4j/plugin/TapPublisher.java

@@ -40,6 +40,7 @@
 import org.tap4j.model.TestSet;
 import org.tap4j.plugin.model.TestSetMap;
 import org.tap4j.plugin.util.Constants;
+import org.jenkinsci.Symbol;
 
 import hudson.EnvVars;
 import hudson.Extension;
@@ -582,6 +583,7 @@ public MatrixAggregator createAggregator(MatrixBuild build, Launcher launcher, B
     }
 
     @Extension
+    @Symbol("publishTap")
     public static class DescriptorImpl extends BuildStepDescriptor<Publisher> {
         public DescriptorImpl() {
             super(TapPublisher.class);

src/test/java/org/tap4j/plugin/TapPublisherPipelineTest.java

@@ -0,0 +1,24 @@
+package org.tap4j.plugin;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.jvnet.hudson.test.JenkinsRule;
+import org.jenkinsci.plugins.workflow.job.WorkflowJob;
+import org.jenkinsci.plugins.workflow.cps.CpsFlowDefinition;
+
+public class TapPublisherPipelineTest {
+
+    @Rule
+    public JenkinsRule j = new JenkinsRule();
+
+    @Test
+    public void publishTapSymbolWorks() throws Exception {
+        WorkflowJob job = j.createProject(WorkflowJob.class);
+
+        job.setDefinition(new CpsFlowDefinition(
+                "publishTap(testResults: 'test.log')",
+                true));
+
+        j.buildAndAssertSuccess(job);
+    }
+}