assertEquals("Named pipes are only valid on IPC$", ex.getMessage());
        }

        @Test
        @DisplayName("Null context throws NPE (invalid input)")
        void nullContextThrows() {
            assertThrows(NullPointerException.class, () -> new SmbNamedPipe("smb://server/IPC$/foo", 0, null));
        }

        @Test

    protected int writeBytesWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    /**
     * {@inheritDoc}
     *
     * @throws SMBProtocolDecodingException if the response structure is invalid
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#readBytesWireFormat(byte[], int)
     */
    @Override

        assertEquals("(deny){group}group123", permissionHelper.decode("D2group123"));
    }

    public void test_decode_withInvalidPrefixes() {
        assertEquals("invalid", permissionHelper.decode("invalid"));
        assertEquals("3guest", permissionHelper.decode("3guest"));
        assertEquals("Xguest", permissionHelper.decode("Xguest"));
        assertEquals("guest", permissionHelper.decode("guest"));

        if (data == null) {
            throw new CIFSException("Data cannot be null");
        }
        if (offset < 0 || length < 0 || offset + length > data.length) {
            throw new CIFSException("Invalid offset or length");
        }
        if (!isAlgorithmSupported(algorithm)) {
            throw new CIFSException("Unsupported compression algorithm: " + algorithm);
        }
        if (length < MIN_COMPRESSION_SIZE) {

        SmbFileHandleImpl fh = target.ensureOpen();
        assertSame(fileHandle, fh);
        assertTrue(target.isOpen());
        assertFalse(target.isStale());

        // If handle becomes invalid, reflect stale
        when(fileHandle.isValid()).thenReturn(false);
        assertFalse(target.isOpen());
        assertTrue(target.isStale());
    }

    @Test

        // Test with an invalid Kerberos version
        byte[] invalidVersionToken = createTestTicketBytes(99, SERVER_REALM, SERVER_PRINCIPAL_NAME, ENCRYPTION_TYPE, ENCRYPTED_DATA, null);
        PACDecodingException e = assertThrows(PACDecodingException.class, () -> new KerberosTicket(invalidVersionToken, (byte) 0, keys));
        assertTrue(e.getMessage().startsWith("Invalid kerberos version"));
    }

    @Test

			t.Fatalf("expected: %d, got: %d", successCase.offsetBegin, start)
		}

		if start+length-1 != successCase.offsetEnd {
			t.Fatalf("expected: %d, got: %d", successCase.offsetEnd, start+length-1)
		}
	}

	// Test invalid range strings.
	invalidRangeStrings := []string{
		"bytes=8",
		"bytes=5-2",
		"bytes=+2-5",
		"bytes=2-+5",
		"bytes=2--5",
		"bytes=-",
		"2-5",
		"bytes = 2-5",
		"bytes=2 - 5",
		"bytes=0-0,-1",

    assertThat(client.processNextFrame()).isFalse()
    client.listener.assertClosing(1000, "Bye!")
  }

  @Test
  fun protocolErrorBeforeCloseSendsFailure() {
    server.sink.write("0a00".decodeHex()).emit() // Invalid non-final ping frame.
    client.processNextFrame() // Detects error, send close, close connection.
    taskFaker.runTasks()
    client.webSocket!!.finishReader()
    assertThat(client.closed).isTrue()

                throw new ThumbnailGenerationException("Invalid thumbnail: " + url);
            }
            final String configId = DocumentUtil.getValue(doc, fessConfig.getIndexFieldConfigId(), String.class);
            if (configId == null || configId.length() < 2) {
                throw new ThumbnailGenerationException("Invalid configId: " + configId);
            }
            return consumer.test(configId, url);

		{"ideas-are-more-powerful-than-guns", true},
		{"testbucket", true},
		{"1bucket", true},
		{"bucket1", true},
		{"a.b", true},
		{"ab.a.bc", true},
		// cases for which test should fail.
		// passing invalid bucket names.
		{"------", false},
		{"my..bucket", false},
		{"192.168.1.1", false},
		{"$this-is-not-valid-too", false},
		{"contains-$-dollar", false},
		{"contains-^-caret", false},