diff options
author | Henning Baldersheim <balder@yahoo-inc.com> | 2020-04-15 11:58:29 +0000 |
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committer | Henning Baldersheim <balder@yahoo-inc.com> | 2020-04-15 11:58:29 +0000 |
commit | a4e565c808f7999f561b0dad881f3a34040ab5d7 (patch) | |
tree | a4f30fd3fd32d3d18494b47a61e58f95bfc16fb3 /container-search/src/test/java/com/yahoo/search/dispatch/TopKEstimatorTest.java | |
parent | 2cebe16d47872f08472ac52cbfc9e1102fb695da (diff) |
Make SearchCluster.TopKEstimator a top level class.
Diffstat (limited to 'container-search/src/test/java/com/yahoo/search/dispatch/TopKEstimatorTest.java')
-rw-r--r-- | container-search/src/test/java/com/yahoo/search/dispatch/TopKEstimatorTest.java | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/container-search/src/test/java/com/yahoo/search/dispatch/TopKEstimatorTest.java b/container-search/src/test/java/com/yahoo/search/dispatch/TopKEstimatorTest.java new file mode 100644 index 00000000000..6ef28119c23 --- /dev/null +++ b/container-search/src/test/java/com/yahoo/search/dispatch/TopKEstimatorTest.java @@ -0,0 +1,18 @@ +package com.yahoo.search.dispatch; + +import org.junit.Test; + +import static org.junit.Assert.assertEquals; + +public class TopKEstimatorTest { + @Test + public void requireHitsAreEstimatedAccordingToPartitionsAndProbability() { + TopKEstimator estimator = new TopKEstimator(30, 0.999); + assertEquals(91.97368471911312, estimator.estimateExactK(200, 3), 0.0); + assertEquals(92, estimator.estimateK(200, 3)); + assertEquals(37.96328109101396, estimator.estimateExactK(200, 10), 0.0); + assertEquals(38, estimator.estimateK(200, 10)); + assertEquals(23.815737601023095, estimator.estimateExactK(200, 20), 0.0); + assertEquals(24, estimator.estimateK(200, 20)); + } +} |