public void testCompressionRatioEstimation() {
        double ratio = compressionService.estimateCompressionRatio(testData, CompressionService.COMPRESSION_LZ77);
        assertTrue(ratio >= 0.0 && ratio <= 1.0);

        double noneRatio = compressionService.estimateCompressionRatio(testData, CompressionService.COMPRESSION_NONE);
        assertEquals(1.0, noneRatio, 0.001);
    }

    @Test

     *
     * @param data the data to analyze
     * @param algorithm the compression algorithm
     * @return estimated compression ratio (0.0 to 1.0, where 0.5 means 50% size reduction)
     */
    double estimateCompressionRatio(byte[] data, int algorithm);

    /**
     * Gets the minimum data size threshold for compression.
     * Data smaller than this threshold should not be compressed.
     *

        }
        return false;
    }

    @Override
    public int[] getSupportedAlgorithms() {
        return SUPPORTED_ALGORITHMS.clone();
    }

    @Override
    public double estimateCompressionRatio(byte[] data, int algorithm) {
        if (data == null || data.length == 0) {
            return 1.0;
        }
        if (algorithm == COMPRESSION_NONE) {
            return 1.0;
        }