Add more testing inspired by #316

src/test/java/com/fasterxml/jackson/annotation/VisibilityTest.java → src/test/java/com/fasterxml/jackson/annotation/JsonAutoDetectTest.java

@@ -9,7 +9,8 @@
 import static org.junit.jupiter.api.Assertions.*;
 
 // Silly test for JsonAutoDetect.Visibility type, for code coverage
-public class VisibilityTest
+public class JsonAutoDetectTest
+    extends AnnotationTestUtil
 {
     static class Bogus {
         public String value;
@@ -82,6 +83,12 @@ public void testFromAnnotation()
         assertEquals(ann.isGetterVisibility(), v.getIsGetterVisibility());
         assertEquals(ann.setterVisibility(), v.getSetterVisibility());
         assertEquals(ann.creatorVisibility(), v.getCreatorVisibility());
+
+        // Let's also verify JDK serializability
+        byte[] b = jdkSerialize(v);
+        JsonAutoDetect.Value deser = jdkDeserialize(b);
+
+        assertEquals(v, deser);
     }
 
     @Test

src/test/java/com/fasterxml/jackson/annotation/JsonIgnorePropertiesTest.java

@@ -11,6 +11,7 @@
  * instances for overrides
  */
 public class JsonIgnorePropertiesTest
+    extends AnnotationTestUtil
 {
     @JsonIgnoreProperties(value={ "foo", "bar" }, ignoreUnknown=true)
     private final static class Bogus {
@@ -53,6 +54,12 @@ public void testFromAnnotation() throws Exception
         Set<String> ign = v.getIgnored();
         assertEquals(2, v.getIgnored().size());
         assertEquals(_set("foo", "bar"), ign);
+
+        // Let's also verify JDK serializability
+        byte[] b = jdkSerialize(v);
+        JsonIgnoreProperties.Value deser = jdkDeserialize(b);
+
+        assertEquals(v, deser);
     }
 
     @Test

src/test/java/com/fasterxml/jackson/annotation/JsonIncludePropertiesTest.java

@@ -11,6 +11,7 @@
  * instances for overrides
  */
 public class JsonIncludePropertiesTest
+    extends AnnotationTestUtil
 {
     @JsonIncludeProperties(value = {"foo", "bar"})
     private final static class Bogus
@@ -42,6 +43,12 @@ public void testFromAnnotation()
         boolean test2 = tmp.equals("JsonIncludeProperties.Value(included=[bar, foo])");
         assertTrue(test1 || test2);
         assertEquals(v, JsonIncludeProperties.Value.from(Bogus.class.getAnnotation(JsonIncludeProperties.class)));
+
+        // Let's also verify JDK serializability
+        byte[] b = jdkSerialize(v);
+        JsonIncludeProperties.Value deser = jdkDeserialize(b);
+
+        assertEquals(v, deser);
     }
 
     @Test

src/test/java/com/fasterxml/jackson/annotation/IncludeTest.java → src/test/java/com/fasterxml/jackson/annotation/JsonIncludeTest.java

@@ -10,7 +10,8 @@
  * Tests to verify that it is possibly to merge {@link JsonInclude.Value}
  * instances for overrides
  */
-public class IncludeTest
+public class JsonIncludeTest
+    extends AnnotationTestUtil
 {
     private final JsonInclude.Value EMPTY = JsonInclude.Value.empty();
 
@@ -45,6 +46,12 @@ public void testFromAnnotation()
         JsonInclude.Value v = JsonInclude.Value.from(ann);
         assertEquals(Include.NON_EMPTY, v.getValueInclusion());
         assertEquals(Include.NON_DEFAULT, v.getContentInclusion());
+
+        // Let's also verify JDK serializability
+        byte[] b = jdkSerialize(v);
+        JsonInclude.Value deser = jdkDeserialize(b);
+
+        assertEquals(v, deser);
     }
 
     @Test

src/test/java/com/fasterxml/jackson/annotation/JsonSetterTest.java

@@ -5,6 +5,7 @@
 import static org.junit.jupiter.api.Assertions.*;
 
 public class JsonSetterTest
+    extends AnnotationTestUtil
 {
     private final static class Bogus {
         @JsonSetter(nulls=Nulls.FAIL, contentNulls=Nulls.SKIP)
@@ -47,6 +48,12 @@ public void testFromAnnotation() throws Exception
         JsonSetter.Value v = JsonSetter.Value.from(ann);
         assertEquals(Nulls.FAIL, v.getValueNulls());
         assertEquals(Nulls.SKIP, v.getContentNulls());
+
+        // Let's also verify JDK serializability
+        byte[] b = jdkSerialize(v);
+        JsonSetter.Value deser = jdkDeserialize(b);
+
+        assertEquals(v, deser);
     }
 
     @Test

src/test/java/com/fasterxml/jackson/annotation/JsonTypeInfoTest.java

@@ -7,6 +7,7 @@
 import static org.junit.jupiter.api.Assertions.*;
 
 public class JsonTypeInfoTest
+    extends AnnotationTestUtil
 {
     @JsonTypeInfo(use = JsonTypeInfo.Id.CLASS, visible=true,
             defaultImpl = JsonTypeInfo.class, requireTypeIdForSubtypes = OptBoolean.TRUE)
@@ -57,6 +58,12 @@ public void testFromAnnotation() throws Exception
 
         assertEquals("JsonTypeInfo.Value(idType=CLASS,includeAs=PROPERTY,propertyName=@class,defaultImpl=NULL,idVisible=true,requireTypeIdForSubtypes=true)", v1.toString());
         assertEquals("JsonTypeInfo.Value(idType=NAME,includeAs=EXTERNAL_PROPERTY,propertyName=ext,defaultImpl=java.lang.Void,idVisible=false,requireTypeIdForSubtypes=false)", v2.toString());
+
+        // Let's also verify JDK serializability
+        byte[] b = jdkSerialize(v1);
+        JsonTypeInfo.Value deser = jdkDeserialize(b);
+
+        assertEquals(v1, deser);
     }
 
     @Test