@Test
public void testSummaryStatistics() {
double arr[] = {3.0, 10.2, -20.4, -1.0, -5.3, 1.0, -5.1};
TemperatureSeriesAnalysis tsa = new TemperatureSeriesAnalysis(arr);
TempSummaryStatistics tss = tsa.summaryStatistics();
double average = tsa.average();
assertEquals(average, tss.getAvgTemp(), 0.001);
}
@Test
public void testTemperatureSeriesAnalysis() {
TemperatureSeriesAnalysis temperatureSeriesAnalysis = new TemperatureSeriesAnalysis();
TempSummaryStatistics tss = temperatureSeriesAnalysis.summaryStatistics();
assertTrue(
tss.getAvgTemp() == tss.getMinTemp()
&& tss.getAvgTemp() == tss.getMaxTemp()
&& tss.getAvgTemp() == tss.getDevTemp());
}
@Test
public void testSummaryStatisticsArrayWithTheSameElements() {
double[] temperatureSeries = {-22.034, -22.034, -22.034, -22.034, -22.034, -22.034};
double avg = -22.034;
double dev = 0;
double min = -22.034;
double max = -22.034;
TemperatureSeriesAnalysis seriesAnalysis = new TemperatureSeriesAnalysis(temperatureSeries);
TempSummaryStatistics expResult = new TempSummaryStatistics(avg, dev, min, max);
TempSummaryStatistics actualResult = seriesAnalysis.summaryStatistics();
assertEquals(expResult, actualResult);
}
@Test
public void testSummaryStatisticsArrayWithDifferentElements() {
double[] temperatureSeries = {-22.034, 2.4, 3.025, 5.023, 20.12, -5.031};
double avg = 0.58383333;
double dev = 12.6076597275;
double min = -22.034;
double max = 20.12;
TemperatureSeriesAnalysis seriesAnalysis = new TemperatureSeriesAnalysis(temperatureSeries);
TempSummaryStatistics expResult = new TempSummaryStatistics(avg, dev, min, max);
TempSummaryStatistics actualResult = seriesAnalysis.summaryStatistics();
assertEquals(expResult, actualResult);
}
@Test(expected = IllegalArgumentException.class)
public void testSummaryStatisticsFailOnEmptyList() {
double[] temperatureSeries = {};
TemperatureSeriesAnalysis seriesAnalysis = new TemperatureSeriesAnalysis(temperatureSeries);
seriesAnalysis.summaryStatistics();
}