Add passing-in-2.x test or #5335 (#5360)

Author: cowtowncoder

src/test/java/com/fasterxml/jackson/databind/misc/IPhoneStyleProperty5335Test.java

@@ -0,0 +1,54 @@
+package com.fasterxml.jackson.databind.misc;
+
+import org.junit.jupiter.api.Test;
+
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+
+import com.fasterxml.jackson.databind.*;
+import com.fasterxml.jackson.databind.json.JsonMapper;
+import com.fasterxml.jackson.databind.testutil.DatabindTestUtil;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+// [databind#5335]
+public class IPhoneStyleProperty5335Test
+    extends DatabindTestUtil
+{
+    @JsonPropertyOrder({"aProp", "anotherProp"})
+    static class TestPojo {
+        private String aProp;
+        private String anotherProp;
+
+        public String getaProp() {
+            return aProp;
+        }
+
+        public void setaProp(String aProp) {
+            this.aProp = aProp;
+        }
+
+        public String getAnotherProp() {
+            return anotherProp;
+        }
+
+        public void setAnotherProp(String anotherProp) {
+            this.anotherProp = anotherProp;
+        }
+    }
+
+    @Test
+    public void featureEnabledTest() throws Exception
+    {
+      ObjectMapper mapper = JsonMapper.builder()
+              .disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES)
+              .enable(MapperFeature.FIX_FIELD_NAME_UPPER_CASE_PREFIX)
+              .build();
+    
+      String json = "{\"aProp\":\"aPropValue\",\"prop1\":\"prop1Value\"}";
+      TestPojo result = mapper.readValue(json, TestPojo.class);
+      assertEquals("aPropValue", result.getaProp());
+      String serialized = mapper.writeValueAsString(result);
+      assertEquals("{\"aProp\":\"aPropValue\",\"anotherProp\":null}",
+              serialized);
+    }
+}