trunk/src/testcases/org/apache/poi/hssf/record/TestInterfaceEndRecord.java

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   this work for additional information regarding copyright ownership.
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package org.apache.poi.hssf.record;


import junit.framework.TestCase;
import org.apache.poi.util.HexRead;
import org.apache.poi.util.HexDump;
import java.util.List;
import java.io.ByteArrayInputStream;

/**
 * Tests the serialization and deserialization of the EndSubRecord
 * class works correctly.  Test data taken directly from a real
 * Excel file.
 *
 * @author Yegor Kozlov
 */
public final class TestInterfaceEndRecord extends TestCase {

    public void testCreate() {
        InterfaceEndRecord record = InterfaceEndRecord.instance;
        assertEquals(0, record.getDataSize());
    }

    /**
     * Silently swallow unexpected contents in InterfaceEndRecord.
     * Although it violates the spec, Excel silently converts this
     * data to an {@link InterfaceHdrRecord}.
     */
    public void testUnexpectedBytes_bug47251(){
        String hex = "" +
                "09 08 10 00 00 06 05 00 EC 15 CD 07 C1 C0 00 00 06 03 00 00 " +   //BOF
                "E2 00 02 00 B0 04 " + //INTERFACEEND with extra two bytes
                "0A 00 00 00";    // EOF
        byte[] data = HexRead.readFromString(hex);
        List<Record> records = RecordFactory.createRecords(new ByteArrayInputStream(data));
        assertEquals(3, records.size());
        Record rec1 = records.get(1);
        assertEquals(InterfaceHdrRecord.class, rec1.getClass());
        InterfaceHdrRecord r = (InterfaceHdrRecord)rec1;
        assertEquals("[E1, 00, 02, 00, B0, 04]", HexDump.toHex(r.serialize()));
    }
}