log4j/src/testcases/org/apache/poi/hssf/record/chart/TestChartTitleFormatRecord.java

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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);
			}
		}

	}
}