@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 testAverage() {
double arr[] = {-5.5, 0, 10.5, 3};
TemperatureSeriesAnalysis temperatureSeriesAnalysis = new TemperatureSeriesAnalysis(arr);
double expected = 2.0;
double actual = temperatureSeriesAnalysis.average();
assertEquals(expected, actual, 0.0001);
}
@Test
public void testAverageCheckForEpsilonError() {
double[] temperatureSeries = {1.40215, -5.32102, 4.00012};
TemperatureSeriesAnalysis seriesAnalysis = new TemperatureSeriesAnalysis(temperatureSeries);
double expResult = 0.027083;
double actualResult = seriesAnalysis.average();
assertEquals(expResult, actualResult, epsilon);
}
@Test
public void testAverageArrayWithFourElements() {
double[] temperatureSeries = {1.0, -5.0, 1.0, 5.0};
TemperatureSeriesAnalysis seriesAnalysis = new TemperatureSeriesAnalysis(temperatureSeries);
double expResult = 0.5;
double actualResult = seriesAnalysis.average();
assertEquals(expResult, actualResult, epsilon);
}
@Test
public void testAverageArrayWithPositiveElements() {
double[] temperatureSeries = {1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0};
TemperatureSeriesAnalysis seriesAnalysis = new TemperatureSeriesAnalysis(temperatureSeries);
double expResult = 4.5;
double actualResult = seriesAnalysis.average();
assertEquals(expResult, actualResult, epsilon);
}
@Test
public void testAverageArrayWithSingleElement() {
double[] temperatureSeries = {1.0};
TemperatureSeriesAnalysis seriesAnalysis = new TemperatureSeriesAnalysis(temperatureSeries);
double expResult = 1.0;
double actualResult = seriesAnalysis.average();
assertEquals(expResult, actualResult, epsilon);
}
@Test
public void testAverageArrayWithTenElements() {
double[] temperatureSeries = {
11.4, -52.51, 31.0, 25.03, -96.2, 2.5, -12.4, 63.45, -3.235, 1.321
};
TemperatureSeriesAnalysis seriesAnalysis = new TemperatureSeriesAnalysis(temperatureSeries);
double expResult = -2.9644;
double actualResult = seriesAnalysis.average();
assertEquals(expResult, actualResult, epsilon);
}
@Test(expected = IllegalArgumentException.class)
public void testAverage_FailOnEmptyList() {
double arr[] = {};
TemperatureSeriesAnalysis temperatureSeriesAnalysis = new TemperatureSeriesAnalysis(arr);
temperatureSeriesAnalysis.average();
}
@Test(expected = IllegalArgumentException.class)
public void testAverageFailOnEmptyArray() {
double[] temperatureSeries = {};
TemperatureSeriesAnalysis seriesAnalysis = new TemperatureSeriesAnalysis(temperatureSeries);
seriesAnalysis.average();
}