m-trieu commented on code in PR #29445:
URL: https://github.com/apache/beam/pull/29445#discussion_r1394868877
##########
sdks/java/core/src/test/java/org/apache/beam/sdk/util/HistogramDataTest.java:
##########
@@ -332,4 +332,19 @@ public void testExponentialBuckets_NumBuckets() {
HistogramData negativeScaleBucket = HistogramData.exponential(-3, 500);
assertThat(negativeScaleBucket.getBucketType().getNumBuckets(),
equalTo(4));
}
+
+ @Test
+ public void testStatistics() {
+ HistogramData histogram1 = HistogramData.linear(0, 10, 10);
+ for (int i = 0; i < 10; i++) {
+ histogram1.record(i * 10.0);
+ }
+
+ assertThat(histogram1.getMean(), equalTo(45.0));
+ double sum_of_squared_deviations = 0;
Review Comment:
for java, camel case is preferred
https://google.github.io/styleguide/javaguide.html#s5.3-camel-case
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