trunk/src/testcases/org/apache/poi/hssf/record/aggregates/TestColumnInfoRecordsAggregate.java

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   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
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       http://www.apache.org/licenses/LICENSE-2.0

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   distributed under the License is distributed on an "AS IS" BASIS,
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   See the License for the specific language governing permissions and
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package org.apache.poi.hssf.record.aggregates;

import static org.junit.Assert.assertEquals;

import java.util.ArrayList;
import java.util.List;

import org.apache.poi.hssf.record.ColumnInfoRecord;
import org.apache.poi.hssf.record.Record;
import org.apache.poi.hssf.record.RecordBase;
import org.apache.poi.hssf.record.aggregates.RecordAggregate.RecordVisitor;
import org.junit.Test;

import junit.framework.AssertionFailedError;

public final class TestColumnInfoRecordsAggregate {

	@Test
    public void testGetRecordSize() {
		ColumnInfoRecordsAggregate agg = new ColumnInfoRecordsAggregate();
		agg.insertColumn(createColInfo(1, 3));
		agg.insertColumn(createColInfo(4, 7));
		agg.insertColumn(createColInfo(8, 8));
		agg.groupColumnRange((short) 2, (short) 5, true);
		assertEquals(4, agg.getNumColumns());

		confirmSerializedSize(agg);

		agg = new ColumnInfoRecordsAggregate();
		agg.groupColumnRange((short) 3, (short) 6, true);
		confirmSerializedSize(agg);
	}

	private static void confirmSerializedSize(RecordBase cirAgg) {
		int estimatedSize = cirAgg.getRecordSize();
		byte[] buf = new byte[estimatedSize];
		int serializedSize = cirAgg.serialize(0, buf);
		assertEquals(estimatedSize, serializedSize);
	}

	private static ColumnInfoRecord createColInfo(int firstCol, int lastCol) {
		ColumnInfoRecord columnInfoRecord = new ColumnInfoRecord();
		columnInfoRecord.setFirstColumn((short) firstCol);
		columnInfoRecord.setLastColumn((short) lastCol);
		return columnInfoRecord;
	}

	private static final class CIRCollector implements RecordVisitor {

		private final List<Record> _list = new ArrayList<Record>();

		@Override
        public void visitRecord(Record r) {
			_list.add(r);
		}

		public static ColumnInfoRecord[] getRecords(ColumnInfoRecordsAggregate agg) {
			CIRCollector circ = new CIRCollector();
			agg.visitContainedRecords(circ);
			ColumnInfoRecord[] result =
	            circ._list.toArray(new ColumnInfoRecord[circ._list.size()]);
			return result;
		}
	}

	@Test
	public void testGroupColumns_bug45639() {
		ColumnInfoRecordsAggregate agg = new ColumnInfoRecordsAggregate();
		agg.groupColumnRange( 7, 9, true);
		agg.groupColumnRange( 4, 12, true);
		try {
			agg.groupColumnRange( 1, 15, true);
		} catch (ArrayIndexOutOfBoundsException e) {
			throw new AssertionFailedError("Identified bug 45639");
		}
		ColumnInfoRecord[] cirs = CIRCollector.getRecords(agg);
		assertEquals(5, cirs.length);
		confirmCIR(cirs, 0,  1,  3, 1, false, false);
		confirmCIR(cirs, 1,  4,  6, 2, false, false);
		confirmCIR(cirs, 2,  7,  9, 3, false, false);
		confirmCIR(cirs, 3, 10, 12, 2, false, false);
		confirmCIR(cirs, 4, 13, 15, 1, false, false);
	}

	/**
	 * Check that an inner group remains hidden
	 */
	@Test
	public void testHiddenAfterExpanding() {
		ColumnInfoRecordsAggregate agg = new ColumnInfoRecordsAggregate();
		agg.groupColumnRange(1, 15, true);
		agg.groupColumnRange(4, 12, true);

		ColumnInfoRecord[] cirs;

		// collapse both inner and outer groups
		agg.collapseColumn(6);
		agg.collapseColumn(3);

		cirs = CIRCollector.getRecords(agg);
		assertEquals(5, cirs.length);
		confirmCIR(cirs, 0,  1,  3, 1, true, false);
		confirmCIR(cirs, 1,  4, 12, 2, true, false);
		confirmCIR(cirs, 2, 13, 13, 1, true, true);
		confirmCIR(cirs, 3, 14, 15, 1, true, false);
		confirmCIR(cirs, 4, 16, 16, 0, false, true);

		// just expand the inner group
		agg.expandColumn(6);

		cirs = CIRCollector.getRecords(agg);
		assertEquals(4, cirs.length);
		if (!cirs[1].getHidden()) {
			throw new AssertionFailedError("Inner group should still be hidden");
		}
		confirmCIR(cirs, 0,  1,  3, 1, true, false);
		confirmCIR(cirs, 1,  4, 12, 2, true, false);
		confirmCIR(cirs, 2, 13, 15, 1, true, false);
		confirmCIR(cirs, 3, 16, 16, 0, false, true);
	}
	
	private static void confirmCIR(ColumnInfoRecord[] cirs, int ix, int startColIx, int endColIx, int level, boolean isHidden, boolean isCollapsed) {
		ColumnInfoRecord cir = cirs[ix];
		assertEquals("startColIx", startColIx, cir.getFirstColumn());
		assertEquals("endColIx", endColIx, cir.getLastColumn());
		assertEquals("level", level, cir.getOutlineLevel());
		assertEquals("hidden", isHidden, cir.getHidden());
		assertEquals("collapsed", isCollapsed, cir.getCollapsed());
	}
}