Document each of the tests

src/test/java/com/yourorg/NoGuavaListsNewArrayListTest.java

@@ -23,13 +23,17 @@
 
 import static org.openrewrite.java.Assertions.java;
 
+/**
+ * This is a test for the NoGuavaListsNewArrayList recipe, as an example of how to write a test for an imperative recipe.
+ */
 class NoGuavaListsNewArrayListTest implements RewriteTest {
 
     // Note, you can define defaults for the RecipeSpec and these defaults will be used for all tests.
     // In this case, the recipe and the parser are common. See below, on how the defaults can be overridden
     // per test.
     @Override
     public void defaults(RecipeSpec spec) {
+        // Note how we directly instantiate the recipe class here
         spec.recipe(new NoGuavaListsNewArrayList())
             .parser(JavaParser.fromJavaVersion()
                 .logCompilationWarningsAndErrors(true)

src/test/java/com/yourorg/SimplifyTernaryTest.java

@@ -17,16 +17,26 @@
 
 import org.junit.jupiter.api.Test;
 import org.openrewrite.DocumentExample;
+import org.openrewrite.test.RecipeSpec;
 import org.openrewrite.test.RewriteTest;
 
 import static org.openrewrite.java.Assertions.java;
 
+/**
+ * This is a test for the SimplifyTernary recipe, as an example of how to write a test for a Refaster style recipe.
+ */
 class SimplifyTernaryTest implements RewriteTest {
+
+    @Override
+    public void defaults(RecipeSpec spec) {
+        // Note that we instantiate a generated class here, with `Recipes` appended to the Refaster class name
+        spec.recipe(new SimplifyTernaryRecipes());
+    }
+
     @DocumentExample
     @Test
     void simplified() {
         rewriteRun(
-          spec -> spec.recipe(new SimplifyTernaryRecipes()),
           //language=java
           java(
             """

src/test/java/com/yourorg/UseOpenRewriteNullableTest.java

@@ -42,13 +42,15 @@ void replacesNullableAnnotation() {
           java(
             """
               import org.jetbrains.annotations.Nullable;
+              
               class A {
                   @Nullable
                   String s;
               }
               """,
             """
                 import org.openrewrite.internal.lang.Nullable;
+                
                 class A {
                     @Nullable
                     String s;