Added unit test for issue FasterXML#97.

Author: Pascal Gélinas

src/test/java/com/fasterxml/jackson/dataformat/xml/unwrapped/TestIssue97.java

@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2002-2014 Nu Echo Inc. All rights reserved.
+ */
+
+package com.fasterxml.jackson.dataformat.xml.unwrapped;
+
+import static org.junit.Assert.*;
+import static org.hamcrest.CoreMatchers.*;
+
+import java.util.*;
+
+import org.junit.*;
+import org.junit.runner.*;
+import org.junit.runners.*;
+
+import com.fasterxml.jackson.annotation.*;
+import com.fasterxml.jackson.annotation.JsonTypeInfo.*;
+import com.fasterxml.jackson.dataformat.xml.*;
+import com.fasterxml.jackson.dataformat.xml.annotation.*;
+
+/**
+ * @author Nu Echo Inc.
+ */
+@RunWith(JUnit4.class)
+public class TestIssue97 {
+
+    @Test
+    public void testGood() throws Exception {
+        XmlMapper mapper = new XmlMapper();
+        mapper.registerSubtypes(FooGood.class);
+
+        String xml = "<Foo type=\"good\" data=\"dummy\"><bar>FOOBAR</bar></Foo>";
+        Foo fooRead = mapper.readValue(xml, Foo.class);
+        assertThat(fooRead, instanceOf(FooGood.class));
+
+        xml = "<Foo data=\"dummy\" type=\"good\" ><bar>FOOBAR</bar></Foo>";
+        fooRead = mapper.readValue(xml, Foo.class);
+        assertThat(fooRead, instanceOf(FooGood.class));
+    }
+    
+    @Test
+    public void testBad() throws Exception {
+        XmlMapper mapper = new XmlMapper();
+        mapper.registerSubtypes(FooBad.class);
+
+        String xml = "<Foo type=\"bad\" data=\"dummy\"><bar><bar>FOOBAR</bar></bar></Foo>";
+        Foo fooRead = mapper.readValue(xml, Foo.class);
+        assertThat(fooRead, instanceOf(FooBad.class));
+
+        // BOOM
+        xml = "<Foo data=\"dummy\" type=\"bad\"><bar><bar>FOOBAR</bar></bar></Foo>";
+        fooRead = mapper.readValue(xml, Foo.class);
+        assertThat(fooRead, instanceOf(FooBad.class));
+    }
+
+    @JsonTypeInfo(property = "type", use = Id.NAME)
+    public static abstract class Foo {
+        private String mData;
+
+        public void setData(String data) {
+            mData = data;
+        }
+
+        @JacksonXmlProperty(isAttribute = true)
+        public String getData() {
+            return mData;
+        }
+    }
+
+    @JsonTypeName("good")
+    public static class FooGood extends Foo {
+        private String mBar;
+
+        public String getBar() {
+            return mBar;
+        }
+
+        public void setBar(String bar) {
+            mBar = bar;
+        }
+    }
+
+    @JsonTypeName("bad")
+    public static class FooBad extends Foo {
+        private List<String> mBar;
+
+        @JacksonXmlElementWrapper(useWrapping = false)
+        public List<String> getBar() {
+            return mBar;
+        }
+
+        public void setBar(List<String> bar) {
+            mBar = bar;
+        }
+    }
+}