Add a failing test for #177

Author: cowtowncoder

avro/src/test/java/com/fasterxml/jackson/dataformat/avro/failing/EmptyRecordRead177Test.java

@@ -0,0 +1,41 @@
+package com.fasterxml.jackson.dataformat.avro.failing;
+
+import org.apache.avro.Schema;
+import org.apache.avro.SchemaBuilder;
+
+import com.fasterxml.jackson.annotation.JsonAutoDetect;
+
+import com.fasterxml.jackson.dataformat.avro.AvroMapper;
+import com.fasterxml.jackson.dataformat.avro.AvroSchema;
+import com.fasterxml.jackson.dataformat.avro.AvroTestBase;
+
+public class EmptyRecordRead177Test extends AvroTestBase
+{
+    private final AvroMapper MAPPER = getMapper();
+
+    private Schema SCHEMA = SchemaBuilder
+            .builder(EmptyRecordRead177Test.class.getName() + "$")
+            .record(Empty.class.getSimpleName())
+                .fields()
+            .endRecord();
+
+    @JsonAutoDetect // just a marker to avoid "no properties found" exception
+    static final class Empty {
+        @Override
+        public boolean equals(Object o) {
+            return o instanceof Empty;
+        }
+    }
+
+    public void testEmptyRecord() throws Exception {
+        final Empty empty = new Empty();
+        
+        byte[] ser = MAPPER.writer().with(new AvroSchema(SCHEMA)).writeValueAsBytes(empty);
+
+        final Empty result = MAPPER.readerFor(Empty.class)
+                .with(new AvroSchema(SCHEMA))
+                .readValue(ser);
+
+        assertEquals(empty, result);
+    }
+}