poi/poi-ooxml/src/test/java/org/apache/poi/xwpf/usermodel/TestColumn.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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package org.apache.poi.xwpf.usermodel;

import org.apache.poi.xwpf.XWPFTestDataSamples;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import static org.junit.jupiter.api.Assertions.assertEquals;

class TestColumn {
    @Test
    void testAddNewColWithCorrectAmountOfColumns() throws IOException {
        XWPFDocument doc = new XWPFDocument();
        XWPFTable table = doc.createTable(2, 4);
        table.addNewCol();

        int expectedNumberOfColumns = 5;
        for (int i = 0; i < table.tableRows.size(); i++) {
            assertEquals(expectedNumberOfColumns, table.tableRows.get(i).getTableCells().size());
        }
        doc.close();
    }

    @Test
    void testAddNewColWithEmptyTable() throws IOException {
        XWPFDocument doc = new XWPFDocument();
        XWPFTable table = doc.createTable(0, 0);
        table.removeRow(0);
        table.addNewCol();

        int expectedNumberOfColumnsInRow1 = 1;
        int actualNumberOfColumnsInRow1 = table.tableRows.get(0).getTableCells().size();
        assertEquals(expectedNumberOfColumnsInRow1, actualNumberOfColumnsInRow1);
        doc.close();
    }

    @Test
    void testAddNewColWithDocx() throws Exception {
        try (XWPFDocument doc = XWPFTestDataSamples
                .openSampleDocument("TestTableColumns.docx")) {
            XWPFTable table = doc.getTables().get(0);
            table.addNewCol();

            int expectedNumberOfColumns = 5;
            for (int i = 0; i < table.tableRows.size(); i++) {
                assertEquals(expectedNumberOfColumns, table.tableRows.get(i).getTableCells().size());
            }
        }
    }

    @Test
    void testAddNewColWhenRowsHaveDifferentNumbersOfColumnsWithDocx() throws Exception {
        try (XWPFDocument doc = XWPFTestDataSamples
                .openSampleDocument("TestTableColumns.docx")) {
            XWPFTable table = doc.getTables().get(1);
            table.addNewCol();

            int expectedNumberOfColumnsInRow1 = 5;
            int actualNumberOfColumnsInRow1 = table.tableRows.get(0).getTableCells().size();
            assertEquals(expectedNumberOfColumnsInRow1, actualNumberOfColumnsInRow1);

            int expectedNumberOfColumnsInRow2 = 4;
            int actualNumberOfColumnsInRow2 = table.tableRows.get(1).getTableCells().size();
            assertEquals(expectedNumberOfColumnsInRow2, actualNumberOfColumnsInRow2);
        }
    }
}