assertEquals(5120, stats.getBytesTransferred(), "Should have transferred 5KB total");
        assertEquals(1, stats.getOperationErrors(), "Should have 1 error");
        assertEquals(0.25, stats.getErrorRate(), 0.001, "Error rate should be 25% (1 error out of 4 successful operations)");

        // Verify latency calculations
        assertTrue(stats.getAverageReadLatencyMicros() > 0, "Read latency should be positive");

        assertTrue(ratio >= 0.0 && ratio <= 1.0);

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

    @Test
    @DisplayName("Test configuration limits")
    public void testConfigurationLimits() {
        assertTrue(compressionService.getMinCompressionSize() > 0);

            double percentUsed = ((fileFsSizeInfo.getCapacity() - fileFsSizeInfo.getFree()) * 100.0) / fileFsSizeInfo.getCapacity();

            // Then
            assertEquals(25.0, percentFree, 0.001);
            assertEquals(75.0, percentUsed, 0.001);
        }
    }

            // When - calculate percentage free
            double percentFree = (allocInfo.getFree() * 100.0) / allocInfo.getCapacity();

            // Then
            assertEquals(25.0, percentFree, 0.001);
        }

        @Test
        @DisplayName("Should support available space check pattern")
        void shouldSupportAvailableSpaceCheckPattern() {
            // Given

                    ((fileFsFullSizeInfo.getCapacity() - fileFsFullSizeInfo.getFree()) * 100.0) / fileFsFullSizeInfo.getCapacity();

            // Then
            assertEquals(25.0, percentFree, 0.001);
            assertEquals(75.0, percentUsed, 0.001);
        }

        @Test
        @DisplayName("Should differentiate between caller available and actual free units")

        public int hunds;
        /**
         * The time zone offset from UTC in minutes.
         */
        public int timezone;
        /**
         * The time interval for each tick of the clock in 0.0001 seconds.
         */
        public int tinterval;
        /**
         * The current day of the month (1-31).
         */
        public int day;
        /**
         * The current month (1-12).

        assertEquals("00", Hexdump.toHexString(data1, 0, 2)); // 2 chars = 1 byte
        assertEquals("000", Hexdump.toHexString(data1, 0, 3)); // 3 chars = 1.5 bytes (rounds up to 2)
        assertEquals("0001", Hexdump.toHexString(data1, 0, 4)); // 4 chars = 2 bytes
        assertEquals("000102", Hexdump.toHexString(data1, 0, 6)); // 6 chars = 3 bytes
        assertEquals("00010203", Hexdump.toHexString(data1, 0, 8)); // 8 chars = 4 bytes

-rw-rw-rw-   1 spark spark       4956 2019-05-04 01:36 s3a://testbucket/wordcount/part-00000
-rw-rw-rw-   1 spark spark       5616 2019-05-04 01:36 s3a://testbucket/wordcount/part-00001

  }

  /** Tests that we always get a non-negative optimal size. */
  public void testOptimalSize() {
    for (int n = 1; n < 1000; n++) {
      for (double fpp = Double.MIN_VALUE; fpp < 1.0; fpp += 0.001) {
        assertTrue(BloomFilter.optimalNumOfBits(n, fpp) >= 0);
      }
    }

    // some random values
    Random random = new Random(0);
    for (int repeats = 0; repeats < 10000; repeats++) {

        public int hunds;
        /**
         * The time zone offset from UTC in minutes.
         */
        public int timezone;
        /**
         * The time interval for each tick of the clock in 0.0001 seconds.
         */
        public int tinterval;
        /**
         * The current day of the month (1-31).
         */
        public int day;
        /**
         * The current month (1-12).