TestTextBytesAtom.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

   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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package org.apache.poi.hslf.record;


import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;

import java.nio.charset.StandardCharsets;

import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
import org.junit.jupiter.api.Test;

/**
 * Tests that TextBytesAtom works properly
 */
public final class TestTextBytesAtom {
    // From a real file
    private final byte[] data = { 0, 0, 0xA8-256, 0x0f, 0x1c, 0, 0, 0,
        0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x74, 0x68,
        0x65, 0x20, 0x74, 0x69, 0x74, 0x6C, 0x65, 0x20, 0x6F, 0x6E,
        0x20, 0x70, 0x61, 0x67, 0x65, 0x20, 0x32 };
    private final byte[] alt_data = { 0, 0, 0xA8-256, 0x0F, 0x14, 0, 0, 0,
        0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x61, 0x20,
        0x74, 0x65, 0x73, 0x74, 0x20, 0x74, 0x69, 0x74, 0x6C, 0x65 };
    private final String alt_text = "This is a test title";

    @Test
    void testRecordType() {
        TextBytesAtom tba = new TextBytesAtom(data,0,data.length);
        assertEquals(4008L, tba.getRecordType());
    }

    @Test
    void testTextA() {
        TextBytesAtom tba = new TextBytesAtom(data,0,data.length);
        String data_text = "This is the title on page 2";
        assertEquals(data_text, tba.getText());
    }

    @Test
    void testTextB() {
        TextBytesAtom tba = new TextBytesAtom(alt_data,0,alt_data.length);
        assertEquals(alt_text, tba.getText());
    }

    @Test
    void testChangeText() throws Exception {
        TextBytesAtom tba = new TextBytesAtom(data,0,data.length);
        tba.setText(alt_text.getBytes(StandardCharsets.ISO_8859_1));

        UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
        tba.writeOut(baos);
        assertArrayEquals(alt_data, baos.toByteArray());
    }

    @Test
    void testWrite() throws Exception {
        TextBytesAtom tba = new TextBytesAtom(data,0,data.length);
        UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
        tba.writeOut(baos);
        assertArrayEquals(data, baos.toByteArray());
    }
}