Add failing test for #4218

Author: cowtowncoder

src/test/java/com/fasterxml/jackson/failing/JacksonInject4218Test.java

@@ -0,0 +1,60 @@
+package com.fasterxml.jackson.failing;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import com.fasterxml.jackson.annotation.JacksonInject;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.databind.*;
+import com.fasterxml.jackson.databind.json.JsonMapper;
+
+public class JacksonInject4218Test
+{
+    static class Dto {
+        @JacksonInject("id")
+        String id;
+
+        @JsonCreator
+        Dto(@JacksonInject("id")
+            @JsonProperty("id")
+            String id
+        ) {
+            this.id = id;
+        }
+    }
+
+    class MyInjectableValues extends InjectableValues.Std
+    {
+        private static final long serialVersionUID = 1L;
+
+        int nextId = 1; // count up if injected
+
+        @Override
+        public Object findInjectableValue(
+                Object valueId,
+                DeserializationContext ctxt,
+                BeanProperty forProperty,
+                Object beanInstance
+        ) throws JsonMappingException {
+            if (valueId.equals("id")) {
+                return "id" + nextId++;
+            } else {
+                return super.findInjectableValue(valueId, ctxt, forProperty, beanInstance);
+            }
+        }
+    }
+
+    @Test
+    void test() throws Exception
+    {
+        ObjectReader reader = new JsonMapper()
+                .readerFor(Dto.class)
+                .with(new MyInjectableValues());
+
+        Dto dto = reader.readValue("{}");
+        String actual = dto.id;
+
+        Assertions.assertEquals("id1", actual);
+    }
+}