BucketDataItem implements Serializable { public DescriptiveStatistics getStats() { return stats; } BucketDataItem(int period, Date startTime, DescriptiveStatistics stats); int getPeriod(); Date getStartTime(); DescriptiveStatistics getStats();  }
@Test public void testGetStats_1() throws Exception { BucketDataItem fixture = new BucketDataItem(1, new Date(), new DescriptiveStatistics()); DescriptiveStatistics result = fixture.getStats(); assertNotNull(result); assertEquals( "DescriptiveStatistics:\nn: 0\nmin: NaN\nmax: NaN\nmean: NaN\nstd dev: NaN\nmedian: NaN\nskewness: NaN\nkurtosis: NaN\n", result.toString()); assertEquals(Double.NaN, result.getMax(), 1.0); assertEquals(Double.NaN, result.getVariance(), 1.0); assertEquals(Double.NaN, result.getMean(), 1.0); assertEquals(-1, result.getWindowSize()); assertEquals(0.0, result.getSumsq(), 1.0); assertEquals(Double.NaN, result.getKurtosis(), 1.0); assertEquals(0.0, result.getSum(), 1.0); assertEquals(Double.NaN, result.getSkewness(), 1.0); assertEquals(Double.NaN, result.getPopulationVariance(), 1.0); assertEquals(Double.NaN, result.getStandardDeviation(), 1.0); assertEquals(Double.NaN, result.getGeometricMean(), 1.0); assertEquals(0L, result.getN()); assertEquals(Double.NaN, result.getMin(), 1.0); }