TestDocumentEncryptionAtom.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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       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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   See the License for the specific language governing permissions and
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package org.apache.poi.hslf.record;


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

import java.io.IOException;

import org.junit.jupiter.api.Test;

/**
 * Tests that DocumentEncryptionAtom works properly.
 */
public final class TestDocumentEncryptionAtom {
    // From a real file
    private final byte[] data_a = new byte[] {
        0x0F, 00, 0x14, 0x2F, 0xBE-256, 00, 00, 00,
        02, 00, 02, 00, 0x0C, 00, 00, 00,
        0x76, 00, 00, 00, 0x0C, 00, 00, 00,
        00, 00, 00, 00, 01, 0x68, 00, 00,
        04, 0x80-256, 00, 00, 0x28, 00, 00, 00,
        01, 00, 00, 00, 0x30, 00, 0x26, 01,
        00, 00, 00, 00,

        0x4D, 00, 0x69, 00,
        0x63, 00, 0x72, 00, 0x6F, 00, 0x73, 00,
        0x6F, 00, 0x66, 00, 0x74, 00, 0x20, 00,
        0x42, 00, 0x61, 00, 0x73, 00, 0x65, 00,
        0x20, 00, 0x43, 00, 0x72, 00, 0x79, 00,
        0x70, 00, 0x74, 00, 0x6F, 00, 0x67, 00,
        0x72, 00, 0x61, 00, 0x70, 00, 0x68, 00,
        0x69, 00, 0x63, 00, 0x20, 00, 0x50, 00,
        0x72, 00, 0x6F, 00, 0x76, 00, 0x69, 00,
        0x64, 00, 0x65, 00, 0x72, 00, 0x20, 00,
        0x76, 00, 0x31, 00, 0x2E, 00, 0x30, 00,
        0x00, 0x00,

        0x10, 00, 0x00, 00,
        0x62, 0xA6-256,
        0xDF-256, 0xEA-256, 0x96-256, 0x84-256,
        0xFB-256, 0x89-256, 0x93-256, 0xCA-256,
        0xBA-256, 0xEE-256, 0x8E-256, 0x43,
        0xC8-256, 0x71, 0xD1-256, 0x89-256,
        0xF6-256, 0x4B, 0x2B, 0xD9-256,
        0x7E, 0x0B, 0x52, 0xFB-256,
        0x68, 0xD7-256, 0x5A, 0x4E, 0x45, 0xDF-256, 0x14, 0x00,
        0x00, 0x00, 0x93-256, 0x15, 0x27, 0xEB-256, 0x21, 0x54,
        0x7F, 0x0B, 0x56, 0x07, 0xEE-256, 0x66, 0xEB-256, 0x6F,
        0xB2-256, 0x8E-256, 0x67, 0x54, 0x07, 0x04, 0x00
    };

    private final byte[] data_b = new byte[] {
            15, 0, 20, 47, -66, 0, 0, 0,
            2, 0, 2, 0, 4,
            0, 0, 0, 118, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0,
            0, 1, 104, 0, 0, 4, -128, 0, 0, 56, 0, 0, 0,
            1, 0, 0, 0, 48, 0, 38, 1, 0, 0, 0, 0, 77, 0,
            105, 0, 99, 0, 114, 0, 111, 0, 115, 0, 111,
            0, 102, 0, 116, 0, 32, 0, 66, 0, 97, 0, 115,
            0, 101, 0, 32, 0, 67, 0, 114, 0, 121, 0, 112,
            0, 116, 0, 111, 0, 103, 0, 114, 0, 97, 0,
            112, 0, 104, 0, 105, 0, 99, 0, 32, 0, 80, 0,
            114, 0, 111, 0, 118, 0, 105, 0, 100, 0, 101,
            0, 114, 0, 32, 0, 118, 0, 49, 0, 46, 0, 48,
            0, 0, 0, 16, 0, 0, 0, -80, -66, 112, -40, 57,
            110, 54, 80, 64, 61, -73, -29, 48, -35, -20,
            17, -40, 84, 54, 6, -103, 125, -22, -72, 53,
            103, -114, 13, -48, 111, 29, 78, 20, 0, 0,
            0, -97, -67, 55, -62, -94, 14, 15, -21, 37,
            3, -104, 22, 6, 102, -61, -98, 62, 40, 61, 21
    };

    @Test
    void recordType() throws IOException {
        DocumentEncryptionAtom dea1 = new DocumentEncryptionAtom(data_a, 0, data_a.length);
        assertEquals(12052, dea1.getRecordType());

        DocumentEncryptionAtom dea2 = new DocumentEncryptionAtom(data_b, 0, data_b.length);
        assertEquals(12052, dea2.getRecordType());

        assertEquals(199, data_a.length);
        assertEquals(198, data_b.length);
    }

    @Test
    void encryptionTypeName() throws IOException {
        DocumentEncryptionAtom dea1 = new DocumentEncryptionAtom(data_a, 0, data_a.length);
        assertEquals("Microsoft Base Cryptographic Provider v1.0", dea1.getEncryptionProviderName());

        DocumentEncryptionAtom dea2 = new DocumentEncryptionAtom(data_b, 0, data_b.length);
        assertEquals("Microsoft Base Cryptographic Provider v1.0", dea2.getEncryptionProviderName());
    }
}