TestChartTitleFormatRecord.java

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

import static org.junit.jupiter.api.Assertions.assertEquals;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.apache.poi.hssf.HSSFTestDataSamples;
import org.apache.poi.hssf.eventusermodel.HSSFEventFactory;
import org.apache.poi.hssf.eventusermodel.HSSFListener;
import org.apache.poi.hssf.eventusermodel.HSSFRequest;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.junit.jupiter.api.Test;

final class TestChartTitleFormatRecord {

    @Test
    void testRecord() throws Exception {
        POIFSFileSystem fs = new POIFSFileSystem(
                HSSFTestDataSamples.getSampleFile("WithFormattedGraphTitle.xls"));

        // Check we can open the file via usermodel
        HSSFWorkbook hssf = new HSSFWorkbook(fs);

        // Now process it through eventusermodel, and
        //  look out for the title records
        ChartTitleFormatRecordGrabber grabber = new ChartTitleFormatRecordGrabber();
        InputStream din = fs.createDocumentInputStream("Workbook");
        HSSFRequest req = new HSSFRequest();
        req.addListenerForAllRecords(grabber);
        HSSFEventFactory factory = new HSSFEventFactory();
        factory.processEvents(req, din);
        din.close();

        // Should've found one
        assertEquals(1, grabber.chartTitleFormatRecords.size());
        // And it should be of something interesting
        ChartTitleFormatRecord r = grabber.chartTitleFormatRecords.get(0);
        assertEquals(3, r.getFormatCount());

        hssf.close();
        fs.close();

    }

    private static final class ChartTitleFormatRecordGrabber implements HSSFListener {
        private final List<ChartTitleFormatRecord> chartTitleFormatRecords;

        ChartTitleFormatRecordGrabber() {
            chartTitleFormatRecords = new ArrayList<>();
        }

        @Override
        public void processRecord(org.apache.poi.hssf.record.Record record) {
            if(record instanceof ChartTitleFormatRecord) {
                chartTitleFormatRecords.add((ChartTitleFormatRecord)record);
            }
        }

    }
}