enable JsonIdentityInfoAndBackReferencesTest

src/test/java/com/fasterxml/jackson/databind/deser/JsonIdentityInfoAndBackReferencesTest.java

@@ -0,0 +1,43 @@
+package com.fasterxml.jackson.databind.deser;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.deser.cases.Animals3964;
+import com.fasterxml.jackson.databind.testutil.DatabindTestUtil;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+// [databind#3964] MismatchedInputException, Bean not yet resolved
+class JsonIdentityInfoAndBackReferencesTest extends DatabindTestUtil {
+
+    final ObjectMapper MAPPER = jsonMapperBuilder()
+            .enable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES).build();
+
+    /**
+     * Passes : Testing lean without getters and setters
+     * and also without {@link JsonCreator}.
+     */
+    @Test
+    void leanWithoutGetterAndSettersAndCreator() throws Exception {
+        String json = a2q("{" +
+                "              'id': 1," +
+                "              'squids': [" +
+                "                {" +
+                "                  'id': 2," +
+                "                  'fish': 1," + // back reference
+                "                  'shrimps': [" +
+                "                    {" +
+                "                      'id': 3," +
+                "                      'squid': 2" +
+                "                    }" +
+                "                  ]" +
+                "                }" +
+                "              ]" +
+                "            }");
+
+        Animals3964.Fish fish = MAPPER.readValue(json, Animals3964.Fish.class);
+        assertEquals(fish, fish.squids.get(0).fish);
+    }
+}

src/test/java/com/fasterxml/jackson/databind/deser/cases/Animals3964.java

@@ -0,0 +1,99 @@
+package com.fasterxml.jackson.databind.deser.cases;
+
+import com.fasterxml.jackson.annotation.JsonBackReference;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIdentityInfo;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.ObjectIdGenerators;
+
+import java.util.List;
+
+public class Animals3964 {
+  /**
+   * Lean version that fails and Without getters and setters
+   */
+  @JsonIdentityInfo(
+      generator = ObjectIdGenerators.PropertyGenerator.class,
+      property = "id",
+      scope = Animal.class
+  )
+  public static class Animal {
+    public final int id;
+    public List<Cat> cats;
+
+    @JsonCreator
+    public Animal(@JsonProperty("id") int id, @JsonProperty("cats") List<Cat> cats) {
+      this.id = id;
+      this.cats = cats;
+    }
+  }
+
+  @JsonIdentityInfo(
+      generator = ObjectIdGenerators.PropertyGenerator.class,
+      property = "id",
+      scope = Cat.class
+  )
+  public static class Cat {
+    public int id;
+    public List<Food> foods;
+    @JsonBackReference("id")
+    public Animal animal;
+
+    @JsonCreator
+    public Cat(@JsonProperty("id") int id, @JsonProperty("foods") List<Food> foods) {
+      this.id = id;
+      this.foods = foods;
+    }
+  }
+
+  @JsonIdentityInfo(
+      generator = ObjectIdGenerators.PropertyGenerator.class,
+      property = "id",
+      scope = Food.class
+  )
+  public static class Food {
+    public int id;
+    public Cat cat;
+
+    @JsonCreator
+    public Food(@JsonProperty("id") int id) {
+      this.id = id;
+    }
+  }
+
+  /**
+   * Passes : Testing lean without getters and setters
+   * and also without {@link JsonCreator}.
+   */
+  @JsonIdentityInfo(
+      generator = ObjectIdGenerators.PropertyGenerator.class,
+      property = "id",
+      scope = Fish.class
+  )
+  public static class Fish {
+    public int id;
+    public List<Squid> squids;
+  }
+
+  @JsonIdentityInfo(
+      generator = ObjectIdGenerators.PropertyGenerator.class,
+      property = "id",
+      scope = Squid.class
+  )
+  public static class Squid {
+    public int id;
+    public List<Shrimp> shrimps;
+    @JsonBackReference("id")
+    public Fish fish;
+  }
+
+  @JsonIdentityInfo(
+      generator = ObjectIdGenerators.PropertyGenerator.class,
+      property = "id",
+      scope = Shrimp.class
+  )
+  public static class Shrimp {
+    public int id;
+    public Squid squid;
+  }
+}

src/test/java/com/fasterxml/jackson/databind/deser/cases/Calories3964.java

@@ -0,0 +1,34 @@
+package com.fasterxml.jackson.databind.deser.cases;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIdentityInfo;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.ObjectIdGenerators;
+
+@JsonIdentityInfo(
+    generator = ObjectIdGenerators.PropertyGenerator.class,
+    property = "id",
+    scope = Calories3964.class
+)
+public class Calories3964 {
+  protected final int id;
+  protected Fruit3964 fruit;
+
+  @JsonCreator
+  public Calories3964(@JsonProperty("id") int id) {
+    this.id = id;
+  }
+
+  public int getId() {
+    return id;
+  }
+
+  public Fruit3964 getFruit() {
+    return fruit;
+  }
+
+  public void setFruit(Fruit3964 fruit) {
+    this.fruit = fruit;
+  }
+}
+

src/test/java/com/fasterxml/jackson/databind/deser/cases/Fruit3964.java

@@ -0,0 +1,48 @@
+package com.fasterxml.jackson.databind.deser.cases;
+
+import com.fasterxml.jackson.annotation.JsonBackReference;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIdentityInfo;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.ObjectIdGenerators;
+
+import java.util.List;
+
+@JsonIdentityInfo(
+    generator = ObjectIdGenerators.PropertyGenerator.class,
+    property = "id",
+    scope = Fruit3964.class
+)
+public class Fruit3964 {
+  protected final int id;
+  protected List<Calories3964> calories;
+
+  @JsonBackReference("id")
+  protected Tree3964 tree;
+
+  @JsonCreator
+  public Fruit3964(@JsonProperty("id") int id, @JsonProperty("calories") List<Calories3964> calories) {
+    this.id = id;
+    this.calories = calories;
+  }
+
+  public int getId() {
+    return id;
+  }
+
+  public Tree3964 getTree() {
+    return tree;
+  }
+
+  public void setTree(Tree3964 tree) {
+    this.tree = tree;
+  }
+
+  public List<Calories3964> getCalories() {
+    return calories;
+  }
+
+  public void setCalories(List<Calories3964> calories) {
+    this.calories = calories;
+  }
+}

src/test/java/com/fasterxml/jackson/databind/deser/cases/Tree3964.java

@@ -0,0 +1,39 @@
+package com.fasterxml.jackson.databind.deser.cases;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIdentityInfo;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.ObjectIdGenerators;
+
+import java.util.List;
+
+/**
+ * Original test
+ */
+@JsonIdentityInfo(
+    generator = ObjectIdGenerators.PropertyGenerator.class,
+    property = "id",
+    scope = Tree3964.class
+)
+public class Tree3964 {
+  protected final int id;
+  public List<Fruit3964> fruits;
+
+  @JsonCreator
+  public Tree3964(@JsonProperty("id") int id, @JsonProperty("fruits") List<Fruit3964> fruits) {
+    this.id = id;
+    this.fruits = fruits;
+  }
+
+  public int getId() {
+    return id;
+  }
+
+  public List<Fruit3964> getFruits() {
+    return fruits;
+  }
+
+  public void setFruits(List<Fruit3964> fruits) {
+    this.fruits = fruits;
+  }
+}