src/ooxml/testcases/org/apache/poi/xwpf/usermodel/TestXWPFEndnotes.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
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package org.apache.poi.xwpf.usermodel;

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

import java.io.IOException;
import java.math.BigInteger;

import org.apache.poi.xwpf.XWPFTestDataSamples;
import org.junit.jupiter.api.Test;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.STFtnEdn;

class TestXWPFEndnotes {

    @Test
    void testCreateEndnotes() throws IOException{
        try (XWPFDocument docOut = new XWPFDocument()) {
            XWPFEndnotes footnotes = docOut.createEndnotes();
            assertNotNull(footnotes);

            XWPFEndnotes secondFootnotes = docOut.createEndnotes();
            assertSame(footnotes, secondFootnotes);
        }
    }

    @Test
    void testAddEndnotesToDocument() throws IOException {
        try (XWPFDocument docOut = new XWPFDocument()) {
            // NOTE: XWPFDocument.createEndnote() delegates directly
            //       to XWPFFootnotes.createEndnote() so this tests
            //       both creation of new XWPFFootnotes in document
            //       and XWPFFootnotes.createEndnote();
            XWPFEndnote endnote = docOut.createEndnote();
            BigInteger noteId = endnote.getId();

            XWPFDocument docIn = XWPFTestDataSamples.writeOutAndReadBack(docOut);

            XWPFEndnote note = docIn.getEndnoteByID(noteId.intValue());
            assertNotNull(note);
            assertEquals(STFtnEdn.NORMAL, note.getCTFtnEdn().getType());
        }
    }

}