poi/src/test/java/org/apache/poi/ss/usermodel/BaseTestCloneSheet.java

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   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.ss.usermodel;

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

import java.io.IOException;

import org.apache.poi.ss.ITestDataProvider;
import org.apache.poi.ss.util.CellRangeAddress;
import org.junit.jupiter.api.Test;

/**
 * Common superclass for testing implementations of
 * Workbook.cloneSheet()
 */
public abstract class BaseTestCloneSheet {

    private final ITestDataProvider _testDataProvider;

    protected BaseTestCloneSheet(ITestDataProvider testDataProvider) {
        _testDataProvider = testDataProvider;
    }

    @Test
    void testCloneSheetBasic() throws IOException{
        Workbook b = _testDataProvider.createWorkbook();
        Sheet s = b.createSheet("Test");
        assertEquals(0, s.addMergedRegion(new CellRangeAddress(0, 1, 0, 1)));
        Sheet clonedSheet = b.cloneSheet(0);

        assertEquals(1, clonedSheet.getNumMergedRegions(), "One merged area");

        b.close();
    }

    /**
     * Ensures that pagebreak cloning works properly
     */
    @Test
    void testPageBreakClones() throws IOException {
        Workbook b = _testDataProvider.createWorkbook();
        Sheet s = b.createSheet("Test");
        s.setRowBreak(3);
        s.setColumnBreak((short) 6);

        Sheet clone = b.cloneSheet(0);
        assertTrue(clone.isRowBroken(3), "Row 3 not broken");
        assertTrue(clone.isColumnBroken((short) 6), "Column 6 not broken");

        s.removeRowBreak(3);

        assertTrue(clone.isRowBroken(3), "Row 3 still should be broken");

        b.close();
    }

    @Test
    void testCloneSheetIntValid() {
        Workbook wb = _testDataProvider.createWorkbook();
        wb.createSheet("Sheet01");
        wb.cloneSheet(0);
        assertEquals(2, wb.getNumberOfSheets());
        assertThrows(IllegalArgumentException.class, () -> wb.cloneSheet(2));
    }

    @Test
    void testCloneSheetIntInvalid() {
        Workbook wb = _testDataProvider.createWorkbook();
        wb.createSheet("Sheet01");
        assertThrows(IllegalArgumentException.class, () -> wb.cloneSheet(1));
        assertEquals(1, wb.getNumberOfSheets());
    }
}