New test that causes an NPE due to unresolved type handler

Author: jeffgbutler

src/test/java/org/apache/ibatis/submitted/blobtest/BlobMapper.java

@@ -0,0 +1,8 @@
+package org.apache.ibatis.submitted.blobtest;
+
+import java.util.List;
+
+public interface BlobMapper {
+    int insert(BlobRecord blobRecord);
+    List<BlobRecord> selectAll();
+}

src/test/java/org/apache/ibatis/submitted/blobtest/BlobMapper.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="org.apache.ibatis.submitted.blobtest.BlobMapper">
+  <resultMap type="org.apache.ibatis.submitted.blobtest.BlobRecord" id="blobRecordResult">
+    <constructor>
+      <idArg column="id" javaType="int"/>
+      <arg column="blob" javaType="byte[]"/>
+    </constructor>
+  </resultMap>
+  
+  <insert id="insert" parameterType="org.apache.ibatis.submitted.blobtest.BlobRecord">
+    insert into blobtest.blobs values (#{id}, #{blob})
+  </insert>
+  
+  <select id="selectAll" resultMap="blobRecordResult">
+    select * from blobtest.blobs
+  </select>
+</mapper>

src/test/java/org/apache/ibatis/submitted/blobtest/BlobRecord.java

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+package org.apache.ibatis.submitted.blobtest;
+
+public class BlobRecord {
+    private int id;
+    private byte[] blob;
+    
+    public BlobRecord(int id, byte[] blob) {
+        super();
+        this.id = id;
+        this.blob = blob;
+    }
+
+    public int getId() {
+        return id;
+    }
+    
+    public byte[] getBlob() {
+        return blob;
+    }
+}

src/test/java/org/apache/ibatis/submitted/blobtest/BlobTest.java

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+package org.apache.ibatis.submitted.blobtest;
+
+import static junit.framework.Assert.assertEquals;
+
+import java.io.Reader;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.util.List;
+
+import org.apache.ibatis.io.Resources;
+import org.apache.ibatis.jdbc.ScriptRunner;
+import org.apache.ibatis.session.SqlSession;
+import org.apache.ibatis.session.SqlSessionFactory;
+import org.apache.ibatis.session.SqlSessionFactoryBuilder;
+import org.junit.BeforeClass;
+import org.junit.Ignore;
+import org.junit.Test;
+
+public class BlobTest {
+    private static SqlSessionFactory sqlSessionFactory;
+
+    @BeforeClass
+    public static void initDatabase() throws Exception {
+        Connection conn = null;
+
+        try {
+            Class.forName("org.hsqldb.jdbcDriver");
+            conn = DriverManager.getConnection("jdbc:hsqldb:mem:blobtest", "sa",
+                    "");
+
+            Reader reader = Resources.getResourceAsReader("org/apache/ibatis/submitted/blobtest/CreateDB.sql");
+
+            ScriptRunner runner = new ScriptRunner(conn);
+            runner.setLogWriter(null);
+            runner.setErrorLogWriter(null);
+            runner.runScript(reader);
+            conn.commit();
+            reader.close();
+
+            reader = Resources.getResourceAsReader("org/apache/ibatis/submitted/blobtest/MapperConfig.xml");
+            sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
+            reader.close();
+        } finally {
+            if (conn != null) {
+                conn.close();
+            }
+        }
+    }
+
+    @Test
+    @Ignore("Breaks the build currently due to NPE at selectAll")
+    public void testInsertBlobThenSelectAll() {
+        SqlSession sqlSession = sqlSessionFactory.openSession();
+        try {
+            BlobMapper blobMapper = sqlSession.getMapper(BlobMapper.class);
+            
+            byte[] myblob = new byte[] {1, 2, 3, 4, 5};
+            BlobRecord blobRecord = new BlobRecord(1, myblob);
+            int rows = blobMapper.insert(blobRecord);
+            assertEquals(1, rows);
+
+            // NPE here due to unresolved type handler
+            List<BlobRecord> results = blobMapper.selectAll();
+            
+            assertEquals(1, results.size());
+            BlobRecord result = results.get(0);
+            assertEquals (blobRecord.getId(), result.getId());
+            assertEquals (blobRecord.getBlob(), result.getBlob());
+        } finally {
+            sqlSession.close();
+        }
+    }
+}

src/test/java/org/apache/ibatis/submitted/blobtest/CreateDB.sql

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+drop table blobtest.blobs is exists;
+drop schema blobtest if exists;
+
+create schema blobtest;
+
+create table blobtest.blobs (
+  id int not null,
+  blob longvarbinary,
+  primary key (id)
+);