Add Records+ReadOnly test cases for issue FasterXML#4119.

Author: yihtserns

src/test-jdk17/java/com/fasterxml/jackson/databind/records/RecordWithReadOnlyTest.java

@@ -0,0 +1,184 @@
+package com.fasterxml.jackson.databind.records;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonProperty.Access;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.testutil.DatabindTestUtil;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class RecordWithReadOnlyTest extends DatabindTestUtil {
+
+    record RecordWithReadOnly(int id, @JsonProperty(access = Access.READ_ONLY) String name) {
+    }
+
+    record RecordWithReadOnlyNamedProperty(int id,
+                                           @JsonProperty(value = "name", access = Access.READ_ONLY) String name) {
+    }
+
+    record RecordWithReadOnlyAccessor(int id, String name) {
+
+        @JsonProperty(access = Access.READ_ONLY)
+        @Override
+        public String name() {
+            return name;
+        }
+    }
+
+    record RecordWithReadOnlyComponentOverriddenAccessor(int id, @JsonProperty(access = Access.READ_ONLY) String name) {
+
+        // @JsonProperty on overridden method is not automatically inherited by overriding method
+        @Override
+        public String name() {
+            return name;
+        }
+    }
+
+    record RecordWithReadOnlyPrimitiveType(@JsonProperty(access = Access.READ_ONLY) int id, String name) {
+    }
+
+    record RecordWithReadOnlyAll(@JsonProperty(access = Access.READ_ONLY) int id,
+                                 @JsonProperty(access = Access.READ_ONLY) String name) {
+    }
+
+    record RecordWithReadOnlyAllAndNoArgConstructor(@JsonProperty(access = Access.READ_ONLY) int id,
+                                                    @JsonProperty(access = Access.READ_ONLY) String name) {
+
+        public RecordWithReadOnlyAllAndNoArgConstructor() {
+            this(-1, "no-arg");
+        }
+    }
+
+    private final ObjectMapper MAPPER = newJsonMapper();
+
+    /*
+    /**********************************************************************
+    /* Test methods, JsonProperty.access=READ_ONLY
+    /**********************************************************************
+     */
+
+    @Test
+    public void testSerializeReadOnlyProperty() throws Exception {
+        String json = MAPPER.writeValueAsString(new RecordWithReadOnly(123, "Bob"));
+        assertEquals(a2q("{'id':123,'name':'Bob'}"), json);
+    }
+
+    @Test
+    public void testDeserializeReadOnlyProperty() throws Exception {
+        RecordWithReadOnly value = MAPPER.readValue(a2q("{'id':123,'name':'Bob'}"), RecordWithReadOnly.class);
+        assertEquals(new RecordWithReadOnly(123, null), value);
+    }
+
+    /*
+    /**********************************************************************
+    /* Test methods, JsonProperty.access=READ_ONLY + JsonProperty.value=...
+    /**********************************************************************
+     */
+
+    @Test
+    public void testSerializeReadOnlyNamedProperty() throws Exception {
+        String json = MAPPER.writeValueAsString(new RecordWithReadOnlyNamedProperty(123, "Bob"));
+        assertEquals(a2q("{'id':123,'name':'Bob'}"), json);
+    }
+
+    /**
+     * Currently documents a bug where a property was NOT ignored during deserialization if given an explicit name.
+     * Also reproducible in 2.14.x.
+     */
+    @Test
+    public void testDeserializeReadOnlyNamedProperty() throws Exception {
+        RecordWithReadOnlyNamedProperty value = MAPPER.readValue(a2q("{'id':123,'name':'Bob'}"), RecordWithReadOnlyNamedProperty.class);
+        assertEquals(new RecordWithReadOnlyNamedProperty(123, "Bob"), value); // BUG: should be `null` instead of "Bob"
+    }
+
+    /*
+    /**********************************************************************
+    /* Test methods, JsonProperty.access=READ_ONLY accessor
+    /**********************************************************************
+     */
+
+    @Test
+    public void testSerializeReadOnlyAccessor() throws Exception {
+        String json = MAPPER.writeValueAsString(new RecordWithReadOnlyAccessor(123, "Bob"));
+        assertEquals(a2q("{'id':123,'name':'Bob'}"), json);
+    }
+
+    @Test
+    public void testDeserializeReadOnlyAccessor() throws Exception {
+        RecordWithReadOnlyAccessor expected = new RecordWithReadOnlyAccessor(123, null);
+
+        assertEquals(expected, MAPPER.readValue(a2q("{'id':123}"), RecordWithReadOnlyAccessor.class));
+        assertEquals(expected, MAPPER.readValue(a2q("{'id':123,'name':null}"), RecordWithReadOnlyAccessor.class));
+        assertEquals(expected, MAPPER.readValue(a2q("{'id':123,'name':'Bob'}"), RecordWithReadOnlyAccessor.class));
+    }
+
+    /*
+    /**********************************************************************
+    /* Test methods, JsonProperty.access=READ_ONLY component, but accessor method was overridden without re-annotating with JsonProperty.access=READ_ONLY
+    /**********************************************************************
+     */
+
+    @Test
+    public void testSerializeReadOnlyComponentOverrideAccessor() throws Exception {
+        String json = MAPPER.writeValueAsString(new RecordWithReadOnlyComponentOverriddenAccessor(123, "Bob"));
+        assertEquals(a2q("{'id':123,'name':'Bob'}"), json);
+    }
+
+    @Test
+    public void testDeserializeReadOnlyComponentOverrideAccessor() throws Exception {
+        RecordWithReadOnlyComponentOverriddenAccessor expected = new RecordWithReadOnlyComponentOverriddenAccessor(123, null);
+
+        assertEquals(expected, MAPPER.readValue(a2q("{'id':123}"), RecordWithReadOnlyComponentOverriddenAccessor.class));
+        assertEquals(expected, MAPPER.readValue(a2q("{'id':123,'name':null}"), RecordWithReadOnlyComponentOverriddenAccessor.class));
+        assertEquals(expected, MAPPER.readValue(a2q("{'id':123,'name':'Bob'}"), RecordWithReadOnlyComponentOverriddenAccessor.class));
+    }
+
+    /*
+    /**********************************************************************
+    /* Test methods, JsonProperty.access=READ_ONLY parameter of primitive type
+    /**********************************************************************
+     */
+
+    @Test
+    public void testSerializeReadOnlyPrimitiveTypeProperty() throws Exception {
+        String json = MAPPER.writeValueAsString(new RecordWithReadOnlyPrimitiveType(123, "Bob"));
+        assertEquals(a2q("{'id':123,'name':'Bob'}"), json);
+    }
+
+    @Test
+    public void testDeserializeReadOnlyPrimitiveTypeProperty() throws Exception {
+        RecordWithReadOnlyPrimitiveType value = MAPPER.readValue(a2q("{'id':123,'name':'Bob'}"), RecordWithReadOnlyPrimitiveType.class);
+        assertEquals(new RecordWithReadOnlyPrimitiveType(0, "Bob"), value);
+    }
+
+    /*
+    /**********************************************************************
+    /* Test methods, JsonProperty.access=READ_ONLY all parameters
+    /**********************************************************************
+     */
+
+    @Test
+    public void testSerializeReadOnlyAllProperties() throws Exception {
+        String json = MAPPER.writeValueAsString(new RecordWithReadOnlyAll(123, "Bob"));
+        assertEquals(a2q("{'id':123,'name':'Bob'}"), json);
+    }
+
+    @Test
+    public void testDeserializeReadOnlyAllProperties() throws Exception {
+        RecordWithReadOnlyAll value = MAPPER.readValue(a2q("{'id':123,'name':'Bob'}"), RecordWithReadOnlyAll.class);
+        assertEquals(new RecordWithReadOnlyAll(0, null), value);
+    }
+
+    @Test
+    public void testSerializeReadOnlyAllProperties_WithNoArgConstructor() throws Exception {
+        String json = MAPPER.writeValueAsString(new RecordWithReadOnlyAllAndNoArgConstructor(123, "Bob"));
+        assertEquals(a2q("{'id':123,'name':'Bob'}"), json);
+    }
+
+    @Test
+    public void testDeserializeReadOnlyAllProperties_WithNoArgConstructor() throws Exception {
+        RecordWithReadOnlyAllAndNoArgConstructor value = MAPPER.readValue(a2q("{'id':123,'name':'Bob'}"), RecordWithReadOnlyAllAndNoArgConstructor.class);
+        assertEquals(new RecordWithReadOnlyAllAndNoArgConstructor(0, null), value);
+    }
+}