log4j/src/ooxml/testcases/org/apache/poi/xslf/usermodel/TestXSLFSlideShowFactory.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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package org.apache.poi.xslf.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.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.security.GeneralSecurityException;

import org.apache.poi.POIDataSamples;
import org.apache.poi.poifs.crypt.EncryptionInfo;
import org.apache.poi.poifs.crypt.EncryptionMode;
import org.apache.poi.poifs.crypt.Encryptor;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.sl.usermodel.BaseTestSlideShowFactory;
import org.apache.poi.util.IOUtils;
import org.apache.poi.util.TempFile;
import org.junit.jupiter.api.Test;

public final class TestXSLFSlideShowFactory extends BaseTestSlideShowFactory {
    private static final POIDataSamples _slTests = POIDataSamples.getSlideShowInstance();
    private static final String filename = "SampleShow.pptx";
    private static final String password = "opensesame";
    private static final String removeExpectedExceptionMsg =
            "This functionality this unit test is trying to test is now passing. " +
            "The unit test needs to be updated by deleting the expected exception code. Status and close any related bugs.";

    @Test
    void testFactoryFromFile() {
        // Remove thrown.* when bug 58779 is resolved
        // In the mean time, this function will modify SampleShow.pptx on disk.
        AssertionError ex = assertThrows(AssertionError.class, () -> testFactoryFromFile(filename),
            "Bug 58779: " + removeExpectedExceptionMsg);
        assertTrue(ex.getMessage().contains("SampleShow.pptx sample file was modified as a result of closing the slideshow"));
    }

    @Test
    void testFactoryFromStream() throws Exception {
        testFactoryFromStream(filename);
    }

    @Test
    void testFactoryFromNative()  {
        // Remove thrown.* when unit test for XSLF SlideShowFactory.create(OPCPackage) is implemented
        UnsupportedOperationException ex = assertThrows(UnsupportedOperationException.class,
            () -> testFactoryFromNative(filename), removeExpectedExceptionMsg
        );
        assertEquals("Test not implemented", ex.getMessage());
    }

    @Test
    void testFactoryFromProtectedFile() throws Exception {
        File pFile = createProtected();
        testFactoryFromProtectedFile(pFile.getAbsolutePath(), password);
    }

    @Test
    void testFactoryFromProtectedStream() throws Exception {
        File pFile = createProtected();
        testFactoryFromProtectedStream(pFile.getAbsolutePath(), password);
    }

    @Test
    void testFactoryFromProtectedNative() throws Exception {
        File pFile = createProtected();
        testFactoryFromProtectedNative(pFile.getAbsolutePath(), password);
    }

    private static File createProtected() throws IOException, GeneralSecurityException {
        try (POIFSFileSystem fs = new POIFSFileSystem()) {
            EncryptionInfo info = new EncryptionInfo(EncryptionMode.agile);
            Encryptor enc = info.getEncryptor();
            enc.confirmPassword(password);
            try (InputStream fis = _slTests.openResourceAsStream(filename);
                 OutputStream os = enc.getDataStream(fs)) {
                IOUtils.copy(fis, os);
            }

            File tf = TempFile.createTempFile("test-xslf-slidefactory", ".pptx");
            try (FileOutputStream fos = new FileOutputStream(tf)) {
                fs.writeFilesystem(fos);
            }
            return tf;
        }
    }
}