src/ooxml/testcases/org/apache/poi/sl/tests/TestSlide.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
 *    the License.  You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    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.sl.tests;

import static org.apache.poi.sl.tests.SLCommonUtils.xslfOnly;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assumptions.assumeFalse;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

import org.apache.poi.sl.usermodel.Slide;
import org.apache.poi.sl.usermodel.SlideShow;
import org.apache.poi.sl.usermodel.SlideShowFactory;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.junit.jupiter.api.Test;

class TestSlide {

    @Test
    void hideHSLF() throws IOException {
        assumeFalse(xslfOnly());
        try (SlideShow<?,?> ppt1 = SlideShowFactory.create(false)) {
            hideSlide(ppt1);
        }
    }

    @Test
    void hideXSLF() throws IOException {
        try (SlideShow<?,?> ppt1 = new XMLSlideShow()) {
            hideSlide(ppt1);
        }
    }

    private void hideSlide(SlideShow<?,?> ppt1) throws IOException {
        ppt1.createSlide().setHidden(true);
        ppt1.createSlide();

        try (ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
            ppt1.write(bos);

            try (InputStream is = new ByteArrayInputStream(bos.toByteArray());
                 SlideShow<?, ?> ppt2 = SlideShowFactory.create(is)) {

                Boolean[] hiddenState = ppt2.getSlides().stream().map(Slide::isHidden).toArray(Boolean[]::new);

                assertTrue(hiddenState[0]);
                assertFalse(hiddenState[1]);

            }
        }
    }
}