Add (passing) test for #256

Author: cowtowncoder

src/test/java/com/fasterxml/jackson/dataformat/xml/lists/ListDeser256Test.java

@@ -0,0 +1,100 @@
+package com.fasterxml.jackson.dataformat.xml.lists;
+
+import java.util.List;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+import com.fasterxml.jackson.dataformat.xml.XmlMapper;
+import com.fasterxml.jackson.dataformat.xml.XmlTestBase;
+import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlElementWrapper;
+import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty;
+import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlRootElement;
+
+// [dataformat-xml#256]
+public class ListDeser256Test extends XmlTestBase
+{
+    static class ExampleObject {
+        public List<LevelOne> levelOne;
+
+        public List<LevelOne> getLevelOne() { return levelOne; }
+
+        static class LevelOne {
+            public LevelTwo levelTwo;
+
+            public LevelTwo getLevelTwo() { return levelTwo; }
+        }
+    
+        static class LevelTwo {
+            public String fieldOne;
+            public String fieldTwo;
+
+            public String getFieldOne() { return fieldOne; }
+            public String getFieldTwo() { return fieldTwo; }
+        }
+    }
+
+    @JacksonXmlRootElement(localName = "Object")
+    static abstract class ExampleObjectMixin {
+        @JacksonXmlElementWrapper(useWrapping = false)
+        @JacksonXmlProperty(localName = "LevelOne")
+        abstract List<ExampleObject.LevelOne> getLevelOne();
+
+        @JacksonXmlElementWrapper(useWrapping = false)
+        @JsonProperty("LevelOne") // This is a workaround to set the element name, @JacksonXmlProperty seems to get ignored
+        abstract void setLevelOne(List<ExampleObject.LevelOne> levelOne);
+    }
+
+    static abstract class LevelOneMixin {
+        @JacksonXmlProperty(localName = "LevelTwo")
+        abstract ExampleObject.LevelTwo getLevelTwo();
+
+        @JsonProperty("LevelTwo")
+        abstract void setLevelTwo(ExampleObject.LevelTwo levelTwo);
+    }
+
+    static abstract class LevelTwoMixin {
+        @JacksonXmlProperty(localName = "Field1")
+        abstract String getFieldOne();
+
+        @JsonProperty("Field1")
+        abstract void setFieldOne(String fieldOne);
+
+        @JacksonXmlProperty(localName = "Field2")
+        abstract String getFieldTwo();
+
+        @JsonProperty("Field2")
+        abstract void setFieldTwo(String fieldTwo);
+    }
+
+    /*
+    /********************************************************
+    /* Test methods
+    /********************************************************
+     */
+
+    public void testDeser256() throws Exception
+    {
+        final String XML =
+                "<Object>\n" + 
+                "    <LevelOne> <!-- This is an array element -->\n" + 
+                "        <LevelTwo>\n" + 
+                "            <Field1>Value1</Field1>\n" + 
+                "            <Field2>Value2</Field2>\n" + 
+                "        </LevelTwo>\n" + 
+                "    </LevelOne>\n" + 
+                "</Object>";
+        final XmlMapper mapper = XmlMapper.builder()
+                .addMixIn(ExampleObject.class, ExampleObjectMixin.class)
+                .addMixIn(ExampleObject.LevelOne.class, LevelOneMixin.class)
+                .addMixIn(ExampleObject.LevelTwo.class, LevelTwoMixin.class)
+                .build();
+        ExampleObject result = mapper.readValue(XML, ExampleObject.class);
+        assertNotNull(result);
+        assertNotNull(result.levelOne);
+        assertEquals(1, result.levelOne.size());
+        assertNotNull(result.levelOne.get(0));
+        assertNotNull(result.levelOne.get(0).levelTwo);
+        assertEquals("Value1", result.levelOne.get(0).levelTwo.fieldOne);
+        assertEquals("Value2", result.levelOne.get(0).levelTwo.fieldTwo);
+    }
+}