This is an automated email from the ASF dual-hosted git repository. aherbert pushed a commit to branch master in repository https://gitbox.apache.org/repos/asf/commons-statistics.git
commit 58c7e8bb1ec1183d706e40b2caec5116c173a00d Author: aherbert <[email protected]> AuthorDate: Tue Jun 23 12:24:35 2020 +0100 Added test for default methods in DiscreteDistribution --- .../distribution/DiscreteDistributionTest.java | 80 ++++++++++++++++++++++ 1 file changed, 80 insertions(+) diff --git a/commons-statistics-distribution/src/test/java/org/apache/commons/statistics/distribution/DiscreteDistributionTest.java b/commons-statistics-distribution/src/test/java/org/apache/commons/statistics/distribution/DiscreteDistributionTest.java new file mode 100644 index 0000000..8c44a0e --- /dev/null +++ b/commons-statistics-distribution/src/test/java/org/apache/commons/statistics/distribution/DiscreteDistributionTest.java @@ -0,0 +1,80 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.commons.statistics.distribution; + +import org.apache.commons.rng.UniformRandomProvider; +import org.junit.jupiter.api.Assertions; +import org.junit.jupiter.api.Test; + +/** + * Test default implementations in the {@link DiscreteDistribution} interface. + */ +public class DiscreteDistributionTest { + /** + * Test the default interface methods + */ + @Test + public void testDefaultMethods() { + final DiscreteDistribution dist = new DiscreteDistribution() { + @Override + public double probability(int x) { + return x; + } + @Override + public double probability(int x0, int x1) { + return 0; + } + @Override + public double cumulativeProbability(int x) { + return 0; + } + @Override + public int inverseCumulativeProbability(double p) { + return 0; + } + @Override + public double getMean() { + return 0; + } + @Override + public double getVariance() { + return 0; + } + @Override + public int getSupportLowerBound() { + return 0; + } + @Override + public int getSupportUpperBound() { + return 0; + } + @Override + public boolean isSupportConnected() { + return false; + } + @Override + public Sampler createSampler(UniformRandomProvider rng) { + return null; + } + }; + + for (final int x : new int[] {Integer.MIN_VALUE, -1, 0, 1, 2, Integer.MAX_VALUE}) { + // Return the log of the density + Assertions.assertEquals(Math.log(x), dist.logProbability(x)); + } + } +}
