Examples of java.security.DigestException

java.security.DigestException
This is the generic Message Digest exception. @version 1.18, 05/11/17 @author Benjamin Renaud

     * Test for <code>DigestException(String, Throwable)</code> constructor
     * Assertion: constructs DigestException when <code>cause</code> is null
     * <code>msg</code> is null
     */
    public void testDigestException06() {
        DigestException tE = new DigestException(null, null);
        assertNull("getMessage() must return null", tE.getMessage());
        assertNull("getCause() must return null", tE.getCause());
    }

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     * Test for <code>DigestException(String, Throwable)</code> constructor
     * Assertion: constructs DigestException when <code>cause</code> is null
     * <code>msg</code> is not null
     */
    public void testDigestException07() {
        DigestException tE;
        for (int i = 0; i < msgs.length; i++) {
            tE = new DigestException(msgs[i], null);
            assertEquals("getMessage() must return: ".concat(msgs[i]), tE
                    .getMessage(), msgs[i]);
            assertNull("getCause() must return null", tE.getCause());
        }
    }

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     * Test for <code>DigestException(String, Throwable)</code> constructor
     * Assertion: constructs DigestException when <code>cause</code> is not
     * null <code>msg</code> is null
     */
    public void testDigestException08() {
        DigestException tE = new DigestException(null, tCause);
        if (tE.getMessage() != null) {
            String toS = tCause.toString();
            String getM = tE.getMessage();
            assertTrue("getMessage() must should ".concat(toS), (getM
                    .indexOf(toS) != -1));
        }
        assertNotNull("getCause() must not return null", tE.getCause());
        assertEquals("getCause() must return ".concat(tCause.toString()), tE
                .getCause(), tCause);
    }

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     * Test for <code>DigestException(String, Throwable)</code> constructor
     * Assertion: constructs DigestException when <code>cause</code> is not
     * null <code>msg</code> is not null
     */
    public void testDigestException09() {
        DigestException tE;
        for (int i = 0; i < msgs.length; i++) {
            tE = new DigestException(msgs[i], tCause);
            String getM = tE.getMessage();
            String toS = tCause.toString();
            if (msgs[i].length() > 0) {
                assertTrue("getMessage() must contain ".concat(msgs[i]), getM
                        .indexOf(msgs[i]) != -1);
                if (!getM.equals(msgs[i])) {
                    assertTrue("getMessage() should contain ".concat(toS), getM
                            .indexOf(toS) != -1);
                }
            }
            assertNotNull("getCause() must not return null", tE.getCause());
            assertEquals("getCause() must return ".concat(tCause.toString()),
                    tE.getCause(), tCause);
        }
    }

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    /**
     * Test for <code>DigestException()</code> constructor Assertion:
     * constructs DigestException with no detail message
     */
    public void testDigestException01() {
        DigestException tE = new DigestException();
        assertNull("getMessage() must return null.", tE.getMessage());
        assertNull("getCause() must return null", tE.getCause());
    }

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            "New message",
            "Long message for Exception. Long message for Exception. Long message for Exception." };


    protected Object[] getData() {
        Exception cause = new Exception(msgs[1]);
        DigestException dExc = new DigestException(msgs[0], cause);
        String msg = null;
        Throwable th = null;
        return new Object[] { new DigestException(), new DigestException(msg),
                new DigestException(msgs[1]),
                new DigestException(new Throwable()), new DigestException(th),
                new DigestException(msgs[1], dExc) };
    }

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     */
    protected int engineDigest(byte[] buf, int offset, int len) throws DigestException {
        byte[] result = new byte[CRC32_LENGTH];
        result = int2quad(seed);
        if (len < CRC32_LENGTH) {
            throw new DigestException("partial digests not returned");
        }
        if (buf.length - offset < CRC32_LENGTH) {
            throw new DigestException("insufficient space in the output " +
                                      "buffer to store the digest");
        }
        System.arraycopy(result, 0, buf, offset, CRC32_LENGTH);
        //processBuffer(buffer, 0, bufferIndex, result, 0);
        /*if (len < CRC32_LENGTH) {

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    // return the digest in the specified array. See JCA doc.
    protected final int engineDigest(byte[] out, int ofs, int len)
            throws DigestException {
        if (len < digestLength) {
            throw new DigestException("Length must be at least "
                + digestLength + " for " + algorithm + "digests");
        }
        if ((ofs < 0) || (len < 0) || (ofs > out.length - len)) {
            throw new DigestException("Buffer too short to store digest");
        }
        if (bytesProcessed < 0) {
            engineReset();
        }
        implDigest(out, ofs);

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        if ( offset > buf.length || len > buf.length || (len + offset) > buf.length ) {
            throw new IllegalArgumentException(
               Messages.getString("security.163")); //$NON-NLS-1$
        }
        if ( len < DIGEST_LENGTH ) {
            throw new DigestException(Messages.getString("security.164")); //$NON-NLS-1$
        }
        if ( offset < 0 ) {
            throw new ArrayIndexOutOfBoundsException(Messages.getString("security.165", offset)); //$NON-NLS-1$
        }

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    /**
     * {@inheritDoc}
     */
    protected int engineDigest(byte[] buf, int offset, int len) throws DigestException {
        if (offset < 0 || offset + len >= buf.length) {
            throw new DigestException("Wrong offset or not enough space to store the digest");
        }
        int destLength = Math.min(len, BYTE_DIGEST_LENGTH);
        System.arraycopy(engineDigest(), 0, buf, offset, destLength);
        return destLength;
    }

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