Add comments in the test class

src/main/java/org/jenkinsci/infra/tools/HyperLocalPluginManager.java

@@ -321,8 +321,7 @@ protected Enumeration<URL> findResources(String name) throws IOException {
             List<URL> resources = new ArrayList<>();
             if (FAST_LOOKUP) {
                 for (PluginWrapper p : activePlugins) {
-                    resources
-                            .addAll(Collections.list(ClassLoaderReflectionToolkit._findResources(p.classLoader, name)));
+                    resources.addAll(Collections.list(ClassLoaderReflectionToolkit._findResources(p.classLoader, name)));
                 }
             } else {
                 for (PluginWrapper p : activePlugins) {

src/test/java/org/jenkinsci/infra/tools/HyperLocalPluginManagerInit.java

@@ -21,7 +21,7 @@
 import jenkins.model.Jenkins;
 
 /**
- * Process and find all the Pipeline steps definied in Jenkins plugins.
+ * Initializes a HyperLocalPluginManager instance, so that it can be used for testing.
  */
 public class HyperLocalPluginManagerInit {
     private static final Logger LOG = Logger.getLogger(HyperLocalPluginManagerInit.class.getName());

src/test/java/org/jenkinsci/infra/tools/HyperLocalPluginManagerTest.java

@@ -10,23 +10,39 @@
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 
+/**
+ * Uses the git-plugin <code>jpi</code>s to test the <code>HyperLocalPluginManager</code>.
+ */
 public class HyperLocalPluginManagerTest {
     private final static String pluginDir = HyperLocalPluginManagerTest.class.getResource("/git-plugin").getPath();
     private static HyperLocalPluginManagerInit starter = new HyperLocalPluginManagerInit();
     private static HyperLocalPluginManager pluginManager;
     private static List<StepDescriptor> steps;
 
+    /**
+     * Initialize the plugin manager, and query it for the plugin strategy using
+     * <code>getPluginStrategy</code>.
+     * 
+     * <code>steps</code> stores the list of components that are of type
+     * StepDescriptor inside the plugin strategy.
+     */
     @BeforeAll
     public static void init() {
         pluginManager = starter.initializeHyperLocalPluginManager(pluginDir);
         steps = pluginManager.getPluginStrategy().findComponents(StepDescriptor.class);
     }
 
+    /**
+     * Tests if the plugin strategy contains the expected number of components.
+     */
     @Test
     public void TotalStepsShouldBeFortySeven() {
         assertEquals(47, steps.size());
     }
 
+    /**
+     * Tests if the component list has the git step.
+     */
     @Test
     public void isGitStepPresent() {
         boolean containsGit = false;
@@ -49,6 +65,10 @@ public void isUnarchiveStepAdvanced() {
         fail("unarchive step not found");
     }
 
+    /**
+     * Tests the plugin name that is assigned to a descriptor using
+     * <code>getPluginNameForDescriptor</code>.
+     */
     @Test
     public void checkoutShouldBelongToWorkflowSCMStep() {
         for (StepDescriptor step : steps) {
@@ -61,6 +81,10 @@ public void checkoutShouldBelongToWorkflowSCMStep() {
         fail("checkout step not found");
     }
 
+    /**
+     * Tests if the reactor reaches the last milestone required to initialize the
+     * plugin manager.
+     */
     @Test
     public void LastMilestoneShouldBeCompletedInitialization() {
         assertEquals("Completed initialization", starter.lastMilestone.toString());