}
  }

  /**
   * Returns whether the source has zero chars. The default implementation first checks {@link
   * #lengthIfKnown}, returning true if it's known to be zero and false if it's known to be
   * non-zero. If the length is not known, it falls back to opening a stream and checking for EOF.
   *
   * <p>Note that, in cases where {@code lengthIfKnown} returns zero, it is <i>possible</i> that

		}

		if err != nil && key != zeroKey {
			t.Errorf("Test %d: parsing failed and client key is not zero key", i)
		}
		if err == nil && key == zeroKey {
			t.Errorf("Test %d: parsed client key is zero key", i)
		}
	}
}

var ssecCopyParseTests = []struct {
	Header      http.Header
	ExpectedErr error
}{
	{
		Header: http.Header{

   *
   * <p>For the case of {@link RoundingMode#HALF_EVEN}, this implementation uses the IEEE 754
   * default rounding mode: if the two nearest representable values are equally near, the one with
   * the least significant bit zero is chosen. (In such cases, both of the nearest representable
   * values are even integers; this method returns the one that is a multiple of a greater power of
   * two.)
   *

    }

    @Test
    @DisplayName("Should write zeros for reserved field")
    void testReservedFieldIsZero() {
        // Given
        Configuration mockConfig = mock(Configuration.class);
        Smb2TreeDisconnectRequest request = new Smb2TreeDisconnectRequest(mockConfig);
        byte[] buffer = new byte[256];
        // Fill with non-zero values first
        for (int i = 0; i < buffer.length; i++) {

        assertTrue(response.getResults()[0] instanceof FileBothDirectoryInfo);
        assertTrue(response.getResults()[1] instanceof FileBothDirectoryInfo);
    }

    @Test
    @DisplayName("Test readBytesWireFormat with zero buffer length returns one empty result")
    void testReadBytesWireFormatZeroBufferLength() throws Exception {
        response = new Smb2QueryDirectoryResponse(mockConfig, Smb2QueryDirectoryRequest.FILE_BOTH_DIRECTORY_INFO);

        return this.pointer;
    }

    /**
     * Validates the provided string against this structure's metadata.
     * Checks that the string length matches the expected length and that
     * null strings have a zero pointer.
     *
     * @param string the string to validate
     * @return the validated string
     * @throws PACDecodingException if validation fails
     */

    @Test
    @DisplayName("Test readDataWireFormat with error code returns 4")
    void testReadDataWireFormatWithErrorCode() throws Exception {
        byte[] buffer = new byte[100];

        // Set error code to non-zero
        setErrorCode(response, 1);

        int result = response.readDataWireFormat(buffer, 0, buffer.length);

        assertEquals(4, result);
        assertNull(response.getSecurityDescriptor());
    }

        int offset = 0;

        setHeaderStart(response, 64);

        // Write structure with zero length
        SMBUtil.writeInt2(9, buffer, offset);
        SMBUtil.writeInt2(80 - 64, buffer, offset + 2);
        SMBUtil.writeInt4(0, buffer, offset + 4); // Zero length

        // When
        int bytesRead = response.readBytesWireFormat(buffer, offset);

        // Then

     */
    public boolean isEmpty() {
        return this.sub_authority_count == 0;
    }

    /**
     * Checks whether the SID is blank (all sub-authorities zero).
     *
     * @return whether the SID is blank (all sub-authorities zero)
     */
    public boolean isBlank() {
        boolean blank = true;
        for (final int sub : this.sub_authority) {
            blank = blank && sub == 0;
        }

	// end of the token. It's where you are now, and you just read this token.
	if tok == '(' && in.Stack.Col() == prevCol+1 {
		// Macro has arguments. Scan list of formals.
		acceptArg := true
		args = []string{} // Zero length but not nil.
	Loop:
		for {
			tok = in.Stack.Next()
			switch tok {
			case ')':
				tok = in.Stack.Next() // First token of macro definition.
				break Loop
			case ',':
				if acceptArg {