@Test
public void testDataExtractor() throws Exception {
BasicSampleExtractor extractor = new BasicSampleExtractor();
Optional<SampleData> sampleData = extractor.extractSample(new JsonObject(buildMessage()));
assertTrue(sampleData.isPresent());
assertEquals(sampleData.get().getPublishId(), "norbert");
assertEquals(sampleData.get().getTime(), NOW);
assertEquals(sampleData.get().getMedian(), 10.5);
assertTrue(sampleData.get().getReadings().length > 0);
}
@Test
public void testDataJsonConsumption() throws Exception {
JsonArray ginzburg = createJson("ginzburg", 1, 10);
assertEquals(ginzburg.size(), 1);
BasicSampleExtractor extractor = new BasicSampleExtractor();
JsonObject jsonObject = ginzburg.getJsonObject(0);
Optional<SampleData> sampleData = extractor.extractSample(jsonObject);
assertTrue(sampleData.isPresent());
assertEquals(sampleData.get().getPublishId(), "ginzburg");
assertFalse(sampleData.get().getTime().isEmpty());
double[] readings = extractor.extractReadings(jsonObject.getString(READINGS));
assertEquals(readings.length, 10);
DescriptiveStatistics stats = new DescriptiveStatistics(readings);
double median = stats.getPercentile(50);
assertEquals(sampleData.get().getMedian(), median);
}