* - Positive values not in DOS_ERROR_CODES map to NT_STATUS_UNSUCCESSFUL
     */
    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 123, -7 })
    void testGetNtStatusVariousCodes(int errcode) {
        SmbException ex = new SmbException(errcode, false);
        int expected;
        if (errcode == 0) {
            expected = 0;
        } else if ((errcode & 0xC0000000) != 0) {

            int[] expectedSizes = { 16, 24, 32, 40, 48 };

            for (int i = 0; i < contexts.length; i++) {
                contexts[i] = new MockCreateContextRequest("CTX" + i, expectedSizes[i]);
            }

            // Calculate total size
            int totalSize = 0;
            for (int i = 0; i < contexts.length; i++) {

        // Given
        int testType = 0x20; // Server service
        when(mockNetbiosName.getNameType()).thenReturn(testType);

        // When
        int nameType = mockNetbiosName.getNameType();

        // Then
        assertEquals(testType, nameType);
        verify(mockNetbiosName).getNameType();
    }

    @ParameterizedTest
    @ValueSource(ints = { 0x00, 0x03, 0x06, 0x1B, 0x1C, 0x1D, 0x1E, 0x20 })

    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 10, 100, 500, 1024 })
    void testReadDataWireFormatVariousSizes(int dataSize) throws SMBProtocolDecodingException {
        // Test with various data sizes within buffer limit
        byte[] testData = new byte[dataSize];
        Arrays.fill(testData, (byte) 0xAB);
        byte[] buffer = new byte[dataSize + 100];

                    ACE.GENERIC_READ };

            int[] flagConstants = { ACE.FLAGS_OBJECT_INHERIT, ACE.FLAGS_CONTAINER_INHERIT, ACE.FLAGS_NO_PROPAGATE, ACE.FLAGS_INHERIT_ONLY,
                    ACE.FLAGS_INHERITED };

            // Check access constants are unique
            for (int i = 0; i < accessConstants.length; i++) {
                for (int j = i + 1; j < accessConstants.length; j++) {

        @ValueSource(ints = { 0, 1, 15, 127, 255 })
        void testVariousPadding(int padding) {
            assertDoesNotThrow(() -> request.setPadding((byte) padding));
        }

        @ParameterizedTest
        @DisplayName("Should handle various read lengths")
        @ValueSource(ints = { 0, 1, 512, 1024, 4096, 65536, 1048576 })
        void testVariousReadLengths(int length) {

    }

    // Parameterized: exercise small variations of cache size for a simple reuse cycle
    @ParameterizedTest
    @ValueSource(ints = { 1, 2 })
    @DisplayName("Parameterized: buffer reuse works for various small cache sizes")
    void reuseWorksForVariousCacheSizes(int cacheSize) {
        BufferCacheImpl impl = new BufferCacheImpl(cacheSize, 6);
        byte[] toRelease = new byte[5];
        toRelease[0] = 42;

        verify(handle, times(1)).ensureDFSResolved();
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, -1, Integer.MIN_VALUE, Integer.MAX_VALUE })
    @DisplayName("hasCapability(cap): returns configured value and captures argument across edge caps")
    void hasCapability_variousCaps_returnsTrue_andCapturesArgument(int cap) throws Exception {
        // Arrange: stub to return true regardless of input

        deskey(key, false, decryptKeys);
    }

    // Turn an 8-byte key into internal keys.
    private void deskey(final byte[] keyBlock, final boolean encrypting, final int[] KnL) {

        int i, j, l, m, n;
        final int[] pc1m = new int[56];
        final int[] pcr = new int[56];
        final int[] kn = new int[32];

        for (j = 0; j < 56; ++j) {
            l = pc1[j];
            m = l & 07;

  public void testConcat_overflow_negative() {
    int dim1 = 1 << 16;
    int dim2 = 1 << 15;
    assertThat(dim1 * dim2).isLessThan(0);
    testConcatOverflow(dim1, dim2);
  }

  @GwtIncompatible // different overflow behavior; could probably be made to work by using ~~
  public void testConcat_overflow_nonNegative() {
    int dim1 = 1 << 16;
    int dim2 = 1 << 16;
    assertThat(dim1 * dim2).isAtLeast(0);